From: Wolfgang Denk <wd@denx.de>
Date: Mon, 28 Jun 2010 20:00:46 +0000 (+0200)
Subject: Make sure that argv[] argument pointers are not modified.
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=54841ab50c;p=u-boot.git

Make sure that argv[] argument pointers are not modified.

The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands.  Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".

This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:

int main (int argc, char **argv)
{
	while (--argc > 0 && **++argv == '-') {
/* ====> */	while (*++*argv) {
			switch (**argv) {
			case 'd':
				debug++;
				break;
			...
			default:
				usage ();
			}
		}
	}
	...
}

The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell.  With the modification, the compiler will prevent this with
an
	error: increment of read-only location '*argv'

N.B.: The code above can be trivially rewritten like this:

	while (--argc > 0 && **++argv == '-') {
		char *arg = *argv;
		while (*++arg) {
			switch (*arg) {
			...

Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
---

diff --git a/api/api.c b/api/api.c
index 385a7e3cdc..190ee6ad6c 100644
--- a/api/api.c
+++ b/api/api.c
@@ -37,7 +37,7 @@
 #undef DEBUG
 
 /* U-Boot routines needed */
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /*****************************************************************************
  *
diff --git a/arch/arm/cpu/arm_cortexa8/mx51/clock.c b/arch/arm/cpu/arm_cortexa8/mx51/clock.c
index 38480ac5a1..a27227de31 100644
--- a/arch/arm/cpu/arm_cortexa8/mx51/clock.c
+++ b/arch/arm/cpu/arm_cortexa8/mx51/clock.c
@@ -269,7 +269,7 @@ u32 imx_get_fecclk(void)
 /*
  * Dump some core clockes.
  */
-int do_mx51_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mx51_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 freq;
 
diff --git a/arch/arm/cpu/arm_cortexa8/omap3/board.c b/arch/arm/cpu/arm_cortexa8/omap3/board.c
index d2500ca3b2..69e56f55c5 100644
--- a/arch/arm/cpu/arm_cortexa8/omap3/board.c
+++ b/arch/arm/cpu/arm_cortexa8/omap3/board.c
@@ -282,7 +282,7 @@ void abort(void)
 /******************************************************************************
  * OMAP3 specific command to switch between NAND HW and SW ecc
  *****************************************************************************/
-static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc != 2)
 		goto usage;
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c
index 5ac1302aa6..310132126c 100644
--- a/arch/arm/lib/bootm.c
+++ b/arch/arm/lib/bootm.c
@@ -50,7 +50,7 @@ static void setup_end_tag (bd_t *bd);
 static struct tag *params;
 #endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	bd_t	*bd = gd->bd;
 	char	*s;
diff --git a/arch/arm/lib/reset.c b/arch/arm/lib/reset.c
index 4fcedfa150..08e6acb261 100644
--- a/arch/arm/lib/reset.c
+++ b/arch/arm/lib/reset.c
@@ -39,7 +39,7 @@
 
 #include <common.h>
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	puts ("resetting ...\n");
 
diff --git a/arch/avr32/cpu/cpu.c b/arch/avr32/cpu/cpu.c
index 904bfb227e..e4489bb2e2 100644
--- a/arch/avr32/cpu/cpu.c
+++ b/arch/avr32/cpu/cpu.c
@@ -76,7 +76,7 @@ void prepare_to_boot(void)
 		     "sync   0" : : "r"(0) : "memory");
 }
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	/* This will reset the CPU core, caches, MMU and all internal busses */
 	__builtin_mtdr(8, 1 << 13);	/* set DC:DBE */
diff --git a/arch/avr32/lib/bootm.c b/arch/avr32/lib/bootm.c
index 6a3172a9a0..8a47cfeb4a 100644
--- a/arch/avr32/lib/bootm.c
+++ b/arch/avr32/lib/bootm.c
@@ -171,7 +171,7 @@ static void setup_end_tag(struct tag *params)
 	params->hdr.size = 0;
 }
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void	(*theKernel)(int magic, void *tagtable);
 	struct	tag *params, *params_start;
diff --git a/arch/blackfin/cpu/bootrom-asm-offsets.c.in b/arch/blackfin/cpu/bootrom-asm-offsets.c.in
index 3146e46674..64c2f24120 100644
--- a/arch/blackfin/cpu/bootrom-asm-offsets.c.in
+++ b/arch/blackfin/cpu/bootrom-asm-offsets.c.in
@@ -9,4 +9,4 @@
 #define _DEFINE(sym, val) asm volatile("\n->" #sym " %0 " #val : : "i" (val))
 #define DEFINE(s, m) _DEFINE(offset_##s##_##m, offsetof(s, m))
 
-int main(int argc, char *argv[])
+int main(int argc, char * const argv[])
diff --git a/arch/blackfin/cpu/reset.c b/arch/blackfin/cpu/reset.c
index e3be740711..164afde331 100644
--- a/arch/blackfin/cpu/reset.c
+++ b/arch/blackfin/cpu/reset.c
@@ -99,7 +99,7 @@ void bfin_reset_or_hang(void)
 #endif
 }
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bfin_reset_trampoline();
 	return 0;
diff --git a/arch/blackfin/lib/boot.c b/arch/blackfin/lib/boot.c
index 951d5b0d02..37aa82a055 100644
--- a/arch/blackfin/lib/boot.c
+++ b/arch/blackfin/lib/boot.c
@@ -33,7 +33,7 @@ static char *make_command_line(void)
 
 extern ulong bfin_poweron_retx;
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	int	(*appl) (char *cmdline);
 	char	*cmdline;
diff --git a/arch/blackfin/lib/cmd_cache_dump.c b/arch/blackfin/lib/cmd_cache_dump.c
index de5840e4cc..412e0198af 100644
--- a/arch/blackfin/lib/cmd_cache_dump.c
+++ b/arch/blackfin/lib/cmd_cache_dump.c
@@ -25,7 +25,7 @@ static int check_limit(const char *type, size_t start_limit, size_t end_limit, s
 	return 1;
 }
 
-int do_icache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_icache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int cache_status = icache_status();
 
@@ -97,7 +97,7 @@ U_BOOT_CMD(icache_dump, 4, 0, do_icache_dump,
 	"icache_dump - dump current instruction cache\n",
 	"[way] [subbank] [set]");
 
-int do_dcache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dcache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 way, bank, subbank, set;
 	u32 status, addr;
diff --git a/arch/blackfin/lib/kgdb.c b/arch/blackfin/lib/kgdb.c
index bd62d71058..4ca3fc7312 100644
--- a/arch/blackfin/lib/kgdb.c
+++ b/arch/blackfin/lib/kgdb.c
@@ -417,7 +417,7 @@ void kgdb_putregs(struct pt_regs *regs, char *buf, int length)
 
 }
 
-void kgdb_breakpoint(int argc, char *argv[])
+void kgdb_breakpoint(int argc, char * const argv[])
 {
 	asm volatile ("excpt 0x1\n");
 }
diff --git a/arch/i386/cpu/cpu.c b/arch/i386/cpu/cpu.c
index 3010519e74..bd6aced873 100644
--- a/arch/i386/cpu/cpu.c
+++ b/arch/i386/cpu/cpu.c
@@ -56,7 +56,7 @@ int cpu_init_r(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf ("resetting ...\n");
 	udelay(50000);				/* wait 50 ms */
diff --git a/arch/i386/lib/board.c b/arch/i386/lib/board.c
index 3f849f6542..0adc66455a 100644
--- a/arch/i386/lib/board.c
+++ b/arch/i386/lib/board.c
@@ -431,7 +431,7 @@ void hang (void)
 	for (;;);
 }
 
-unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char *argv[])
+unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char * const argv[])
 {
 	/*
 	 * x86 does not use a dedicated register to pass the pointer
diff --git a/arch/i386/lib/bootm.c b/arch/i386/lib/bootm.c
index f96d7bd6da..b36e58d9ec 100644
--- a/arch/i386/lib/bootm.c
+++ b/arch/i386/lib/bootm.c
@@ -29,7 +29,7 @@
 #include <asm/zimage.h>
 
 /*cmd_boot.c*/
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void		*base_ptr;
 	ulong		os_data, os_len;
diff --git a/arch/i386/lib/interrupts.c b/arch/i386/lib/interrupts.c
index 51def59954..5a28278280 100644
--- a/arch/i386/lib/interrupts.c
+++ b/arch/i386/lib/interrupts.c
@@ -136,7 +136,7 @@ void do_irq(int hw_irq)
 }
 
 #if defined(CONFIG_CMD_IRQ)
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int irq;
 
diff --git a/arch/i386/lib/zimage.c b/arch/i386/lib/zimage.c
index b39615a3e2..89fe015e6e 100644
--- a/arch/i386/lib/zimage.c
+++ b/arch/i386/lib/zimage.c
@@ -245,7 +245,7 @@ void boot_zimage(void *setup_base)
 	enter_realmode(((u32)setup_base+SETUP_START_OFFSET)>>4, 0, &regs, &regs);
 }
 
-int do_zboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_zboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	void *base_ptr;
 	void *bzImage_addr;
diff --git a/arch/m68k/cpu/mcf5227x/cpu.c b/arch/m68k/cpu/mcf5227x/cpu.c
index d9f5f43c3c..5129a03251 100644
--- a/arch/m68k/cpu/mcf5227x/cpu.c
+++ b/arch/m68k/cpu/mcf5227x/cpu.c
@@ -33,7 +33,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
 	udelay(1000);
diff --git a/arch/m68k/cpu/mcf523x/cpu.c b/arch/m68k/cpu/mcf523x/cpu.c
index a1a51336c2..582aec9b23 100644
--- a/arch/m68k/cpu/mcf523x/cpu.c
+++ b/arch/m68k/cpu/mcf523x/cpu.c
@@ -34,7 +34,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile ccm_t *ccm = (ccm_t *) MMAP_CCM;
 
diff --git a/arch/m68k/cpu/mcf52x2/cpu.c b/arch/m68k/cpu/mcf52x2/cpu.c
index c4c5d50604..9fb717c2bd 100644
--- a/arch/m68k/cpu/mcf52x2/cpu.c
+++ b/arch/m68k/cpu/mcf52x2/cpu.c
@@ -38,7 +38,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef	CONFIG_M5208
-int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *)(MMAP_RCM);
 
@@ -142,7 +142,7 @@ int checkcpu(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	/* Call the board specific reset actions first. */
 	if(board_reset) {
@@ -177,7 +177,7 @@ int watchdog_init(void)
 #endif
 
 #ifdef	CONFIG_M5272
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
 
@@ -257,7 +257,7 @@ int watchdog_init(void)
 #endif				/* #ifdef CONFIG_M5272 */
 
 #ifdef	CONFIG_M5275
-int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *)(MMAP_RCM);
 
@@ -337,7 +337,7 @@ int checkcpu(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	MCFRESET_RCR = MCFRESET_RCR_SOFTRST;
 	return 0;
@@ -354,7 +354,7 @@ int checkcpu(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	/* enable watchdog, set timeout to 0 and wait */
 	mbar_writeByte(MCFSIM_SYPCR, 0xc0);
@@ -384,7 +384,7 @@ int checkcpu(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	/* enable watchdog, set timeout to 0 and wait */
 	mbar_writeByte(SIM_SYPCR, 0xc0);
diff --git a/arch/m68k/cpu/mcf532x/cpu.c b/arch/m68k/cpu/mcf532x/cpu.c
index 331cc15da4..0af4969087 100644
--- a/arch/m68k/cpu/mcf532x/cpu.c
+++ b/arch/m68k/cpu/mcf532x/cpu.c
@@ -34,7 +34,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
 
diff --git a/arch/m68k/cpu/mcf5445x/cpu.c b/arch/m68k/cpu/mcf5445x/cpu.c
index 6238bc020f..182521c552 100644
--- a/arch/m68k/cpu/mcf5445x/cpu.c
+++ b/arch/m68k/cpu/mcf5445x/cpu.c
@@ -34,7 +34,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM);
 	udelay(1000);
diff --git a/arch/m68k/cpu/mcf547x_8x/cpu.c b/arch/m68k/cpu/mcf547x_8x/cpu.c
index 3912a74d5f..f9a4b64011 100644
--- a/arch/m68k/cpu/mcf547x_8x/cpu.c
+++ b/arch/m68k/cpu/mcf547x_8x/cpu.c
@@ -34,7 +34,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	volatile gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
 
diff --git a/arch/m68k/lib/bootm.c b/arch/m68k/lib/bootm.c
index e5ed6eb7cc..76a2fb27c1 100644
--- a/arch/m68k/lib/bootm.c
+++ b/arch/m68k/lib/bootm.c
@@ -64,7 +64,7 @@ void arch_lmb_reserve(struct lmb *lmb)
 	lmb_reserve(lmb, sp, (CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp));
 }
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	ulong rd_len;
 	ulong initrd_start, initrd_end;
diff --git a/arch/microblaze/cpu/interrupts.c b/arch/microblaze/cpu/interrupts.c
index 7a9d022eee..e9d53c1afd 100644
--- a/arch/microblaze/cpu/interrupts.c
+++ b/arch/microblaze/cpu/interrupts.c
@@ -173,7 +173,7 @@ void interrupt_handler (void)
 
 #if defined(CONFIG_CMD_IRQ)
 #ifdef CONFIG_SYS_INTC_0
-int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	struct irq_action *act = vecs;
@@ -193,7 +193,7 @@ int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return (0);
 }
 #else
-int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	puts ("Undefined interrupt controller\n");
 }
diff --git a/arch/microblaze/lib/bootm.c b/arch/microblaze/lib/bootm.c
index 2227a81bb0..8e2c6d8922 100644
--- a/arch/microblaze/lib/bootm.c
+++ b/arch/microblaze/lib/bootm.c
@@ -32,7 +32,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	/* First parameter is mapped to $r5 for kernel boot args */
 	void	(*theKernel) (char *, ulong, ulong);
diff --git a/arch/mips/cpu/cpu.c b/arch/mips/cpu/cpu.c
index d5a16047de..3ae397c8ef 100644
--- a/arch/mips/cpu/cpu.c
+++ b/arch/mips/cpu/cpu.c
@@ -42,7 +42,7 @@ void __attribute__((weak)) _machine_restart(void)
 {
 }
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	_machine_restart();
 
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c
index 54af24cba3..40a564718f 100644
--- a/arch/mips/lib/bootm.c
+++ b/arch/mips/lib/bootm.c
@@ -43,7 +43,7 @@ static int	linux_env_idx;
 static void linux_params_init (ulong start, char * commandline);
 static void linux_env_set (char * env_name, char * env_val);
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void	(*theKernel) (int, char **, char **, int *);
 	char	*commandline = getenv ("bootargs");
diff --git a/arch/mips/lib/bootm_qemu_mips.c b/arch/mips/lib/bootm_qemu_mips.c
index cc70fa93f3..f1906c6775 100644
--- a/arch/mips/lib/bootm_qemu_mips.c
+++ b/arch/mips/lib/bootm_qemu_mips.c
@@ -29,7 +29,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void	(*theKernel) (int, char **, char **, int *);
 	char	*bootargs = getenv ("bootargs");
diff --git a/arch/nios2/cpu/epcs.c b/arch/nios2/cpu/epcs.c
index ab7d746b5f..2369431f15 100644
--- a/arch/nios2/cpu/epcs.c
+++ b/arch/nios2/cpu/epcs.c
@@ -472,7 +472,7 @@ static int epcs_sect_erased (int sect, unsigned *offset,
  * Commands
  ***********************************************************************/
 static
-void do_epcs_info (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_info (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	int i;
 	unsigned char stat;
@@ -519,7 +519,7 @@ void do_epcs_info (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_erase (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_erase (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	unsigned start,end;
 
@@ -549,7 +549,7 @@ void do_epcs_erase (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_protect (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_protect (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	unsigned char stat;
 
@@ -585,7 +585,7 @@ void do_epcs_protect (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_read (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_read (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	ulong addr,off,cnt;
 	ulong sz;
@@ -617,7 +617,7 @@ void do_epcs_read (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_write (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_write (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	ulong addr,off,cnt;
 	ulong sz;
@@ -656,7 +656,7 @@ void do_epcs_write (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 static
-void do_epcs_verify (struct epcs_devinfo_t *dev, int argc, char *argv[])
+void do_epcs_verify (struct epcs_devinfo_t *dev, int argc, char * const argv[])
 {
 	ulong addr,off,cnt;
 	ulong sz;
@@ -690,7 +690,7 @@ void do_epcs_verify (struct epcs_devinfo_t *dev, int argc, char *argv[])
 }
 
 /*-----------------------------------------------------------------------*/
-int do_epcs (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_epcs (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int len;
 	struct epcs_devinfo_t *dev = epcs_dev_find ();
diff --git a/arch/nios2/cpu/interrupts.c b/arch/nios2/cpu/interrupts.c
index b552db4eba..63acfa9147 100644
--- a/arch/nios2/cpu/interrupts.c
+++ b/arch/nios2/cpu/interrupts.c
@@ -239,7 +239,7 @@ int interrupt_init (void)
 
 /*************************************************************************/
 #if defined(CONFIG_CMD_IRQ)
-int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	struct irq_action *act = vecs;
diff --git a/arch/nios2/cpu/sysid.c b/arch/nios2/cpu/sysid.c
index 77bc8b5690..5fbc28b988 100644
--- a/arch/nios2/cpu/sysid.c
+++ b/arch/nios2/cpu/sysid.c
@@ -44,7 +44,7 @@ void display_sysid (void)
 
 }
 
-int do_sysid (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sysid (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	display_sysid ();
 	return (0);
diff --git a/arch/nios2/lib/bootm.c b/arch/nios2/lib/bootm.c
index 5d25edf80d..e4093a822a 100644
--- a/arch/nios2/lib/bootm.c
+++ b/arch/nios2/lib/bootm.c
@@ -28,7 +28,7 @@
 
 #define NIOS_MAGIC 0x534f494e /* enable command line and initrd passing */
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	void (*kernel)(int, int, int, char *) = (void *)images->ep;
 	char *commandline = getenv("bootargs");
diff --git a/arch/powerpc/cpu/74xx_7xx/cpu.c b/arch/powerpc/cpu/74xx_7xx/cpu.c
index 14d3ce448a..ab6f11dade 100644
--- a/arch/powerpc/cpu/74xx_7xx/cpu.c
+++ b/arch/powerpc/cpu/74xx_7xx/cpu.c
@@ -235,7 +235,7 @@ soft_restart(unsigned long addr)
     !defined(CONFIG_PPMC7XX)
 /* no generic way to do board reset. simply call soft_reset. */
 void
-do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	/* flush and disable I/D cache */
diff --git a/arch/powerpc/cpu/74xx_7xx/interrupts.c b/arch/powerpc/cpu/74xx_7xx/interrupts.c
index c2856c936a..7fc8a34080 100644
--- a/arch/powerpc/cpu/74xx_7xx/interrupts.c
+++ b/arch/powerpc/cpu/74xx_7xx/interrupts.c
@@ -98,7 +98,7 @@ irq_free_handler(int vec)
 /****************************************************************************/
 
 void
-do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 	puts("IRQ related functions are unimplemented currently.\n");
 }
diff --git a/arch/powerpc/cpu/mpc512x/cpu.c b/arch/powerpc/cpu/mpc512x/cpu.c
index 09cbd2024d..a1a3bd4adf 100644
--- a/arch/powerpc/cpu/mpc512x/cpu.c
+++ b/arch/powerpc/cpu/mpc512x/cpu.c
@@ -75,7 +75,7 @@ int checkcpu (void)
 
 
 int
-do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr;
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
diff --git a/arch/powerpc/cpu/mpc512x/diu.c b/arch/powerpc/cpu/mpc512x/diu.c
index 1cce6a233c..f638c00372 100644
--- a/arch/powerpc/cpu/mpc512x/diu.c
+++ b/arch/powerpc/cpu/mpc512x/diu.c
@@ -107,7 +107,7 @@ int mpc5121_diu_init(void)
 }
 
 int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
-			     int flag, int argc, char *argv[])
+			     int flag, int argc, char * const argv[])
 {
 	unsigned int addr;
 
diff --git a/arch/powerpc/cpu/mpc512x/iim.c b/arch/powerpc/cpu/mpc512x/iim.c
index 8f2eb37e17..abec8f61cc 100644
--- a/arch/powerpc/cpu/mpc512x/iim.c
+++ b/arch/powerpc/cpu/mpc512x/iim.c
@@ -278,7 +278,7 @@ int ads5121_fuse_stat(int bank)
 	return 0;
 }
 
-int do_ads5121_fuse(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ads5121_fuse(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int frow, n, v, bank;
 
diff --git a/arch/powerpc/cpu/mpc512x/speed.c b/arch/powerpc/cpu/mpc512x/speed.c
index ce8d0949b2..9d749f22e4 100644
--- a/arch/powerpc/cpu/mpc512x/speed.c
+++ b/arch/powerpc/cpu/mpc512x/speed.c
@@ -131,7 +131,7 @@ ulong get_bus_freq (ulong dummy)
 	return gd->csb_clk;
 }
 
-int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char buf[32];
 
diff --git a/arch/powerpc/cpu/mpc5xx/cpu.c b/arch/powerpc/cpu/mpc5xx/cpu.c
index 7fffebcc1e..5aa7f848df 100644
--- a/arch/powerpc/cpu/mpc5xx/cpu.c
+++ b/arch/powerpc/cpu/mpc5xx/cpu.c
@@ -138,7 +138,7 @@ int dcache_status (void)
 /*
  * Reset board
  */
-int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 #if defined(CONFIG_PATI)
 	volatile ulong *addr = (ulong *) CONFIG_SYS_RESET_ADDRESS;
diff --git a/arch/powerpc/cpu/mpc5xx/interrupts.c b/arch/powerpc/cpu/mpc5xx/interrupts.c
index 167543fcf5..66bce30a04 100644
--- a/arch/powerpc/cpu/mpc5xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc5xx/interrupts.c
@@ -184,7 +184,7 @@ void timer_interrupt_cpu (struct pt_regs *regs)
  * irqinfo - print information about IRQs
  *
  */
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int vec;
 
diff --git a/arch/powerpc/cpu/mpc5xxx/cpu.c b/arch/powerpc/cpu/mpc5xxx/cpu.c
index 44b8a7a6d4..0c1eebd4ee 100644
--- a/arch/powerpc/cpu/mpc5xxx/cpu.c
+++ b/arch/powerpc/cpu/mpc5xxx/cpu.c
@@ -78,7 +78,7 @@ int checkcpu (void)
 /* ------------------------------------------------------------------------- */
 
 int
-do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr;
 	/* Interrupts and MMU off */
diff --git a/arch/powerpc/cpu/mpc5xxx/interrupts.c b/arch/powerpc/cpu/mpc5xxx/interrupts.c
index 16eee3a480..50455d07a1 100644
--- a/arch/powerpc/cpu/mpc5xxx/interrupts.c
+++ b/arch/powerpc/cpu/mpc5xxx/interrupts.c
@@ -311,7 +311,7 @@ void irq_free_handler(int irq)
 /****************************************************************************/
 
 #if defined(CONFIG_CMD_IRQ)
-void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	int irq, re_enable;
 	u32 intr_ctrl;
diff --git a/arch/powerpc/cpu/mpc8220/cpu.c b/arch/powerpc/cpu/mpc8220/cpu.c
index 563cfe0536..64e0526e88 100644
--- a/arch/powerpc/cpu/mpc8220/cpu.c
+++ b/arch/powerpc/cpu/mpc8220/cpu.c
@@ -52,7 +52,7 @@ int checkcpu (void)
 
 /* ------------------------------------------------------------------------- */
 
-int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile gptmr8220_t *gptmr = (volatile gptmr8220_t *) MMAP_GPTMR;
 	ulong msr;
diff --git a/arch/powerpc/cpu/mpc8220/interrupts.c b/arch/powerpc/cpu/mpc8220/interrupts.c
index 78e99179c9..9544d85b55 100644
--- a/arch/powerpc/cpu/mpc8220/interrupts.c
+++ b/arch/powerpc/cpu/mpc8220/interrupts.c
@@ -74,7 +74,7 @@ void irq_free_handler (int vec)
 /****************************************************************************/
 
 void
-do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	puts ("IRQ related functions are unimplemented currently.\n");
 }
diff --git a/arch/powerpc/cpu/mpc824x/cpu.c b/arch/powerpc/cpu/mpc824x/cpu.c
index 08f6a947f4..44f91b25fa 100644
--- a/arch/powerpc/cpu/mpc824x/cpu.c
+++ b/arch/powerpc/cpu/mpc824x/cpu.c
@@ -92,7 +92,7 @@ int checkdcache (void)
 
 /*------------------------------------------------------------------- */
 
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr, addr;
 
diff --git a/arch/powerpc/cpu/mpc8260/bedbug_603e.c b/arch/powerpc/cpu/mpc8260/bedbug_603e.c
index c969ff65e6..248861289b 100644
--- a/arch/powerpc/cpu/mpc8260/bedbug_603e.c
+++ b/arch/powerpc/cpu/mpc8260/bedbug_603e.c
@@ -18,7 +18,7 @@
 extern CPU_DEBUG_CTX bug_ctx;
 
 void bedbug603e_init __P((void));
-void bedbug603e_do_break __P((cmd_tbl_t*,int,int,char*[]));
+void bedbug603e_do_break __P((cmd_tbl_t*,int,int,char*const[]));
 void bedbug603e_break_isr __P((struct pt_regs*));
 int  bedbug603e_find_empty __P((void));
 int  bedbug603e_set __P((int,unsigned long));
@@ -64,7 +64,7 @@ void bedbug603e_init( void )
  * ====================================================================== */
 
 void bedbug603e_do_break (cmd_tbl_t *cmdtp, int flag, int argc,
-			 char *argv[])
+			 char * const argv[])
 {
   long		addr;           /* Address to break at  */
   int		which_bp;       /* Breakpoint number    */
diff --git a/arch/powerpc/cpu/mpc8260/cpu.c b/arch/powerpc/cpu/mpc8260/cpu.c
index aedbf297ab..220c1e24b1 100644
--- a/arch/powerpc/cpu/mpc8260/cpu.c
+++ b/arch/powerpc/cpu/mpc8260/cpu.c
@@ -238,7 +238,7 @@ void upmconfig (uint upm, uint * table, uint size)
 
 #if !defined(CONFIG_HAVE_OWN_RESET)
 int
-do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr, addr;
 
diff --git a/arch/powerpc/cpu/mpc8260/interrupts.c b/arch/powerpc/cpu/mpc8260/interrupts.c
index 2606c60d45..79178cc3a3 100644
--- a/arch/powerpc/cpu/mpc8260/interrupts.c
+++ b/arch/powerpc/cpu/mpc8260/interrupts.c
@@ -256,7 +256,7 @@ void timer_interrupt_cpu (struct pt_regs *regs)
 *
 */
 void
-do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+do_irqinfo (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	int irq, re_enable;
 
diff --git a/arch/powerpc/cpu/mpc83xx/cpu.c b/arch/powerpc/cpu/mpc83xx/cpu.c
index d3be909761..b664c641a1 100644
--- a/arch/powerpc/cpu/mpc83xx/cpu.c
+++ b/arch/powerpc/cpu/mpc83xx/cpu.c
@@ -192,7 +192,7 @@ void upmconfig (uint upm, uint *table, uint size)
 
 
 int
-do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr;
 #ifndef MPC83xx_RESET
diff --git a/arch/powerpc/cpu/mpc83xx/ecc.c b/arch/powerpc/cpu/mpc83xx/ecc.c
index f3942b411f..8dadd64b42 100644
--- a/arch/powerpc/cpu/mpc83xx/ecc.c
+++ b/arch/powerpc/cpu/mpc83xx/ecc.c
@@ -98,7 +98,7 @@ void ecc_print_status(void)
 	       ddr->capture_attributes & ECC_CAPT_ATTR_VLD);
 }
 
-int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 	volatile ddr83xx_t *ddr = &immap->ddr;
diff --git a/arch/powerpc/cpu/mpc83xx/interrupts.c b/arch/powerpc/cpu/mpc83xx/interrupts.c
index faffbaf838..446af27c6f 100644
--- a/arch/powerpc/cpu/mpc83xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc83xx/interrupts.c
@@ -90,7 +90,7 @@ void timer_interrupt_cpu (struct pt_regs *regs)
  */
 
 void
-do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 }
 
diff --git a/arch/powerpc/cpu/mpc83xx/speed.c b/arch/powerpc/cpu/mpc83xx/speed.c
index 500eef1e9c..b5076a9af8 100644
--- a/arch/powerpc/cpu/mpc83xx/speed.c
+++ b/arch/powerpc/cpu/mpc83xx/speed.c
@@ -497,7 +497,7 @@ ulong get_bus_freq(ulong dummy)
 	return gd->csb_clk;
 }
 
-int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char buf[32];
 
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index fddeb2fb09..6f81fdf61b 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -186,7 +186,7 @@ int checkcpu (void)
 
 /* ------------------------------------------------------------------------- */
 
-int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 /* Everything after the first generation of PQ3 parts has RSTCR */
 #if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
diff --git a/arch/powerpc/cpu/mpc85xx/interrupts.c b/arch/powerpc/cpu/mpc85xx/interrupts.c
index 409367d158..ac8c01ac15 100644
--- a/arch/powerpc/cpu/mpc85xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc85xx/interrupts.c
@@ -103,7 +103,7 @@ void timer_interrupt_cpu(struct pt_regs *regs)
 
 #if defined(CONFIG_CMD_IRQ)
 /* irqinfo - print information about PCI devices,not implemented. */
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return 0;
 }
diff --git a/arch/powerpc/cpu/mpc85xx/mp.c b/arch/powerpc/cpu/mpc85xx/mp.c
index 826bf32d4d..ddbc2211c3 100644
--- a/arch/powerpc/cpu/mpc85xx/mp.c
+++ b/arch/powerpc/cpu/mpc85xx/mp.c
@@ -105,7 +105,7 @@ static u8 boot_entry_map[4] = {
 	BOOT_ENTRY_R6_LOWER,
 };
 
-int cpu_release(int nr, int argc, char *argv[])
+int cpu_release(int nr, int argc, char * const argv[])
 {
 	u32 i, val, *table = (u32 *)get_spin_virt_addr() + nr * NUM_BOOT_ENTRY;
 	u64 boot_addr;
diff --git a/arch/powerpc/cpu/mpc86xx/cpu.c b/arch/powerpc/cpu/mpc86xx/cpu.c
index 188757587f..9064e78037 100644
--- a/arch/powerpc/cpu/mpc86xx/cpu.c
+++ b/arch/powerpc/cpu/mpc86xx/cpu.c
@@ -124,7 +124,7 @@ checkcpu(void)
 
 
 void
-do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
diff --git a/arch/powerpc/cpu/mpc86xx/interrupts.c b/arch/powerpc/cpu/mpc86xx/interrupts.c
index c78fc72254..d8ad6d30d6 100644
--- a/arch/powerpc/cpu/mpc86xx/interrupts.c
+++ b/arch/powerpc/cpu/mpc86xx/interrupts.c
@@ -101,7 +101,7 @@ void irq_free_handler(int vec)
 /*
  * irqinfo - print information about PCI devices,not implemented.
  */
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return 0;
 }
diff --git a/arch/powerpc/cpu/mpc86xx/mp.c b/arch/powerpc/cpu/mpc86xx/mp.c
index b4a0faacde..24eb30aaaa 100644
--- a/arch/powerpc/cpu/mpc86xx/mp.c
+++ b/arch/powerpc/cpu/mpc86xx/mp.c
@@ -66,7 +66,7 @@ int cpu_disable(int nr)
 	return 0;
 }
 
-int cpu_release(int nr, int argc, char *argv[])
+int cpu_release(int nr, int argc, char * const argv[])
 {
 	/* dummy function so common/cmd_mp.c will build
 	 * should be implemented in the future */
diff --git a/arch/powerpc/cpu/mpc8xx/bedbug_860.c b/arch/powerpc/cpu/mpc8xx/bedbug_860.c
index 0308bbbf7a..9deda6c2a0 100644
--- a/arch/powerpc/cpu/mpc8xx/bedbug_860.c
+++ b/arch/powerpc/cpu/mpc8xx/bedbug_860.c
@@ -17,7 +17,7 @@
 extern CPU_DEBUG_CTX bug_ctx;
 
 void bedbug860_init __P((void));
-void bedbug860_do_break __P((cmd_tbl_t*,int,int,char*[]));
+void bedbug860_do_break __P((cmd_tbl_t*,int,int,char*const[]));
 void bedbug860_break_isr __P((struct pt_regs*));
 int  bedbug860_find_empty __P((void));
 int  bedbug860_set __P((int,unsigned long));
@@ -63,7 +63,7 @@ void bedbug860_init( void )
  * ====================================================================== */
 
 void bedbug860_do_break (cmd_tbl_t *cmdtp, int flag, int argc,
-			 char *argv[])
+			 char * const argv[])
 {
   long		addr = 0;       /* Address to break at  */
   int		which_bp;       /* Breakpoint number    */
diff --git a/arch/powerpc/cpu/mpc8xx/cpu.c b/arch/powerpc/cpu/mpc8xx/cpu.c
index 2eb848bd0e..142cfa5b98 100644
--- a/arch/powerpc/cpu/mpc8xx/cpu.c
+++ b/arch/powerpc/cpu/mpc8xx/cpu.c
@@ -478,7 +478,7 @@ void upmconfig (uint upm, uint * table, uint size)
 
 #ifndef CONFIG_LWMON
 
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong msr, addr;
 
@@ -521,7 +521,7 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * and thus too short to reset the external hardware. So we  use  the
  * watchdog to reset the board.
  */
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	/* prevent triggering the watchdog */
 	disable_interrupts ();
diff --git a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
index b2cc2feaa3..ff5ef5f0c7 100644
--- a/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
+++ b/arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c
@@ -418,7 +418,7 @@ static void	test(void);
 static void	DQS_calibration_process(void);
 #endif
 #endif
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 static unsigned char spd_read(uchar chip, uint addr)
 {
diff --git a/arch/powerpc/cpu/ppc4xx/bedbug_405.c b/arch/powerpc/cpu/ppc4xx/bedbug_405.c
index ef11cb65e4..e1500cc042 100644
--- a/arch/powerpc/cpu/ppc4xx/bedbug_405.c
+++ b/arch/powerpc/cpu/ppc4xx/bedbug_405.c
@@ -17,7 +17,7 @@
 extern CPU_DEBUG_CTX bug_ctx;
 
 void bedbug405_init __P ((void));
-void bedbug405_do_break __P ((cmd_tbl_t *, int, int, char *[]));
+void bedbug405_do_break __P ((cmd_tbl_t *, int, int, char * const []));
 void bedbug405_break_isr __P ((struct pt_regs *));
 int bedbug405_find_empty __P ((void));
 int bedbug405_set __P ((int, unsigned long));
@@ -63,7 +63,7 @@ void bedbug405_init (void)
  * set routine which will assign a breakpoint number.
  * ====================================================================== */
 
-void bedbug405_do_break (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+void bedbug405_do_break (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	long addr = 0;		/* Address to break at  */
 	int which_bp;		/* Breakpoint number    */
diff --git a/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c b/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c
index ba57211dd0..72c5aec706 100644
--- a/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c
+++ b/arch/powerpc/cpu/ppc4xx/cmd_chip_config.c
@@ -45,7 +45,7 @@ static void print_configs(int cur_config_nr)
 
 }
 
-static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int ret;
diff --git a/arch/powerpc/cpu/ppc4xx/cpu.c b/arch/powerpc/cpu/ppc4xx/cpu.c
index e1a023b703..851065cbd7 100644
--- a/arch/powerpc/cpu/ppc4xx/cpu.c
+++ b/arch/powerpc/cpu/ppc4xx/cpu.c
@@ -688,7 +688,7 @@ int ppc440spe_revB() {
 
 /* ------------------------------------------------------------------------- */
 
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #if defined(CONFIG_BOARD_RESET)
 	board_reset();
diff --git a/arch/powerpc/cpu/ppc4xx/interrupts.c b/arch/powerpc/cpu/ppc4xx/interrupts.c
index 6db84210b8..c89bf37a17 100644
--- a/arch/powerpc/cpu/ppc4xx/interrupts.c
+++ b/arch/powerpc/cpu/ppc4xx/interrupts.c
@@ -194,7 +194,7 @@ void irq_free_handler(int vec)
 }
 
 #if defined(CONFIG_CMD_IRQ)
-int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int vec;
 
diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c
index 6702df51a5..3064121143 100644
--- a/arch/powerpc/lib/bootm.c
+++ b/arch/powerpc/lib/bootm.c
@@ -47,7 +47,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern ulong get_effective_memsize(void);
 static ulong get_sp (void);
 static void set_clocks_in_mhz (bd_t *kbd);
@@ -297,7 +297,7 @@ static int boot_body_linux(bootm_headers_t *images)
 }
 
 __attribute__((noinline))
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	int	ret;
 
diff --git a/arch/powerpc/lib/kgdb.c b/arch/powerpc/lib/kgdb.c
index d3eb1f35a9..1ec68184bf 100644
--- a/arch/powerpc/lib/kgdb.c
+++ b/arch/powerpc/lib/kgdb.c
@@ -313,7 +313,7 @@ kgdb_putregs(struct pt_regs *regs, char *buf, int length)
    the debugger. */
 
 void
-kgdb_breakpoint(int argc, char *argv[])
+kgdb_breakpoint(int argc, char * const argv[])
 {
 	asm("	.globl breakinst\n\
 	     breakinst: .long 0x7d821008\n\
diff --git a/arch/sh/cpu/sh2/cpu.c b/arch/sh/cpu/sh2/cpu.c
index e0cb04752d..6bbedd9d48 100644
--- a/arch/sh/cpu/sh2/cpu.c
+++ b/arch/sh/cpu/sh2/cpu.c
@@ -59,7 +59,7 @@ int cleanup_before_linux(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	disable_interrupts();
 	reset_cpu(0);
diff --git a/arch/sh/cpu/sh3/cpu.c b/arch/sh/cpu/sh3/cpu.c
index 8261d29d48..3e9caad8d2 100644
--- a/arch/sh/cpu/sh3/cpu.c
+++ b/arch/sh/cpu/sh3/cpu.c
@@ -45,7 +45,7 @@ int cleanup_before_linux(void)
 	return 0;
 }
 
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	disable_interrupts();
 	reset_cpu(0);
diff --git a/arch/sh/cpu/sh4/cpu.c b/arch/sh/cpu/sh4/cpu.c
index be410abf00..f136758334 100644
--- a/arch/sh/cpu/sh4/cpu.c
+++ b/arch/sh/cpu/sh4/cpu.c
@@ -44,7 +44,7 @@ int cleanup_before_linux (void)
 	return 0;
 }
 
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	disable_interrupts();
 	reset_cpu (0);
diff --git a/arch/sh/lib/bootm.c b/arch/sh/lib/bootm.c
index ae1f869f10..9c58ed7ec8 100644
--- a/arch/sh/lib/bootm.c
+++ b/arch/sh/lib/bootm.c
@@ -43,7 +43,7 @@ static void hexdump(unsigned char *buf, int len)
 }
 #endif
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images)
 {
 	/* Linux kernel load address */
 	void (*kernel) (void) = (void (*)(void))images->ep;
diff --git a/arch/sparc/cpu/leon2/cpu.c b/arch/sparc/cpu/leon2/cpu.c
index d6e23b129c..46512c761f 100644
--- a/arch/sparc/cpu/leon2/cpu.c
+++ b/arch/sparc/cpu/leon2/cpu.c
@@ -49,7 +49,7 @@ void cpu_reset(void)
 	_reset_reloc();
 }
 
-int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	cpu_reset();
 
diff --git a/arch/sparc/cpu/leon2/interrupts.c b/arch/sparc/cpu/leon2/interrupts.c
index 9b0da963af..5149550e8f 100644
--- a/arch/sparc/cpu/leon2/interrupts.c
+++ b/arch/sparc/cpu/leon2/interrupts.c
@@ -195,7 +195,7 @@ void irq_free_handler(int irq)
 /****************************************************************************/
 
 #if defined(CONFIG_CMD_IRQ)
-void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	int irq;
 	unsigned int pil = get_pil();
diff --git a/arch/sparc/cpu/leon3/cpu.c b/arch/sparc/cpu/leon3/cpu.c
index 976f311348..a1646e22f5 100644
--- a/arch/sparc/cpu/leon3/cpu.c
+++ b/arch/sparc/cpu/leon3/cpu.c
@@ -52,7 +52,7 @@ void cpu_reset(void)
 	_reset_reloc();
 }
 
-int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	cpu_reset();
 
diff --git a/arch/sparc/cpu/leon3/interrupts.c b/arch/sparc/cpu/leon3/interrupts.c
index ac6aca5d18..4138f9b673 100644
--- a/arch/sparc/cpu/leon3/interrupts.c
+++ b/arch/sparc/cpu/leon3/interrupts.c
@@ -197,7 +197,7 @@ void irq_free_handler(int irq)
 /****************************************************************************/
 
 #if defined(CONFIG_CMD_IRQ)
-void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+void do_irqinfo(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 	int irq;
 	unsigned int pil = get_pil();
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index d55cc863da..12901bcef8 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -79,7 +79,7 @@ struct linux_mem_v0 {
 
 /* Arguments sent to the kernel from the boot prompt. */
 struct linux_arguments_v0 {
-	char *argv[8];
+	char * const argv[8];
 	char args[100];
 	char boot_dev[2];
 	int boot_dev_ctrl;
diff --git a/arch/sparc/lib/board.c b/arch/sparc/lib/board.c
index 11eea603c1..b776c21d60 100644
--- a/arch/sparc/lib/board.c
+++ b/arch/sparc/lib/board.c
@@ -63,7 +63,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 extern void timer_interrupt_init(void);
 extern void malloc_bin_reloc(void);
-extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
+extern int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]);
 extern int prom_init(void);
 
 #if defined(CONFIG__CMD_DOC)
diff --git a/arch/sparc/lib/bootm.c b/arch/sparc/lib/bootm.c
index c62cf57d80..4c226a3a75 100644
--- a/arch/sparc/lib/bootm.c
+++ b/arch/sparc/lib/bootm.c
@@ -92,7 +92,7 @@ void arch_lmb_reserve(struct lmb *lmb)
 }
 
 /* boot the linux kernel */
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t * images)
+int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t * images)
 {
 	char *bootargs;
 	ulong initrd_start, initrd_end;
diff --git a/board/BuS/EB+MCF-EV123/EB+MCF-EV123.c b/board/BuS/EB+MCF-EV123/EB+MCF-EV123.c
index 2fc3eafbd8..1f76dd91cc 100644
--- a/board/BuS/EB+MCF-EV123/EB+MCF-EV123.c
+++ b/board/BuS/EB+MCF-EV123/EB+MCF-EV123.c
@@ -193,7 +193,7 @@ int drv_video_init(void)
 /*---------------------------------------------------------------------------*/
 
 #ifdef CONFIG_VIDEO
-int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode = 0;
 	ulong side;
diff --git a/board/BuS/eb_cpux9k2/cpux9k2.c b/board/BuS/eb_cpux9k2/cpux9k2.c
index 1f222756c8..bbceaf37ae 100644
--- a/board/BuS/eb_cpux9k2/cpux9k2.c
+++ b/board/BuS/eb_cpux9k2/cpux9k2.c
@@ -348,7 +348,7 @@ void __led_set(led_id_t mask, int state)
 
 /*---------------------------------------------------------------------------*/
 
-int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode = 0;
 	ulong side;
diff --git a/board/amcc/acadia/cmd_acadia.c b/board/amcc/acadia/cmd_acadia.c
index c427f9ebc6..86f86e2b18 100644
--- a/board/amcc/acadia/cmd_acadia.c
+++ b/board/amcc/acadia/cmd_acadia.c
@@ -38,7 +38,7 @@ static u8 boot_267_nand[] = {
 	0x00, 0x00, 0x00, 0x00
 };
 
-static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u8 chip;
 	u8 *buf;
diff --git a/board/amcc/luan/luan.c b/board/amcc/luan/luan.c
index 4e12e9af12..c0368c0389 100644
--- a/board/amcc/luan/luan.c
+++ b/board/amcc/luan/luan.c
@@ -207,7 +207,7 @@ static int l2cache_status(void)
  *  int do_l2cache()
  *
  ************************************************************************/
-int do_l2cache( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+int do_l2cache( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[] )
 {
 	switch (argc) {
 	case 2:			/* on / off	*/
diff --git a/board/amcc/makalu/cmd_pll.c b/board/amcc/makalu/cmd_pll.c
index 9bae67e563..3c0dc5f896 100644
--- a/board/amcc/makalu/cmd_pll.c
+++ b/board/amcc/makalu/cmd_pll.c
@@ -178,7 +178,7 @@ test_write(void)
 }
 
 int
-do_pll_alter (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_pll_alter (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char c = '\0';
 	pll_freq_t pll_freq;
diff --git a/board/amcc/taihu/lcd.c b/board/amcc/taihu/lcd.c
index c3dc9837b5..595dee3fcc 100644
--- a/board/amcc/taihu/lcd.c
+++ b/board/amcc/taihu/lcd.c
@@ -129,7 +129,7 @@ int lcd_init(void)
 	return 0;
 }
 
-static int do_lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	out_8((u8 *) LCD_CMD_ADDR, 0x01);
 	udelay(2000);
@@ -137,7 +137,7 @@ static int do_lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -148,7 +148,7 @@ static int do_lcd_puts (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_lcd_putc (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_putc (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -159,7 +159,7 @@ static int do_lcd_putc (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_lcd_cur (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_cur (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong count;
 	ulong dir;
diff --git a/board/amcc/taihu/taihu.c b/board/amcc/taihu/taihu.c
index be381d60ac..1682cf7c6a 100644
--- a/board/amcc/taihu/taihu.c
+++ b/board/amcc/taihu/taihu.c
@@ -78,7 +78,7 @@ int checkboard(void)
 	return 0;
 }
 
-static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
+static int do_sw_stat(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[])
 {
 	char stat;
 	int i;
@@ -97,7 +97,7 @@ U_BOOT_CMD (
 	""
 );
 
-static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char *argv[])
+static int do_led_ctl(cmd_tbl_t* cmd_tp, int flags, int argc, char * const argv[])
 {
 	int led_no;
 
diff --git a/board/amcc/taihu/update.c b/board/amcc/taihu/update.c
index f9c31b3927..b87eac4a1b 100644
--- a/board/amcc/taihu/update.c
+++ b/board/amcc/taihu/update.c
@@ -98,7 +98,7 @@ static uchar buf_66[] =
 	0x00
 };
 
-static int update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char *argv[])
+static int update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong len = 0x20;
 	uchar chip = CONFIG_SYS_I2C_EEPROM_ADDR;
diff --git a/board/amcc/taishan/lcd.c b/board/amcc/taishan/lcd.c
index d432cc3d05..6a049dfbad 100644
--- a/board/amcc/taishan/lcd.c
+++ b/board/amcc/taishan/lcd.c
@@ -152,19 +152,19 @@ int lcd_init(void)
 	return 0;
 }
 
-static int do_lcd_test(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	lcd_init();
 	return 0;
 }
 
-static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_clear(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	*LCD_CMD_ADDR = 0x01;
 	mdelay(LCD_DELAY_NORMAL_MS);
 	return 0;
 }
-static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -173,7 +173,7 @@ static int do_lcd_puts(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	lcd_puts(argv[1]);
 	return 0;
 }
-static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -182,7 +182,7 @@ static int do_lcd_putc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	lcd_putc((char)argv[1][0]);
 	return 0;
 }
-static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_lcd_cur(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong count;
 	ulong dir;
@@ -356,7 +356,7 @@ void set_phy_normal_mode(void)
 }
 #endif	/* 0 - test only */
 
-static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile unsigned int *GpioOr =
 		(volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
@@ -364,7 +364,7 @@ static int do_led_test_off(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_led_test_on(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile unsigned int *GpioOr =
 		(volatile unsigned int *)(CONFIG_SYS_PERIPHERAL_BASE + 0x700);
diff --git a/board/amcc/taishan/showinfo.c b/board/amcc/taishan/showinfo.c
index a9a80e5b6e..587fe74e47 100644
--- a/board/amcc/taishan/showinfo.c
+++ b/board/amcc/taishan/showinfo.c
@@ -161,7 +161,7 @@ void show_xbridge_info(void)
 	printf("PCIL0_XSTS              = %#010lx\n", in32r(PCIL0_STS));
 }
 
-int do_show_xbridge_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_show_xbridge_info(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	show_xbridge_info();
 	return 0;
@@ -215,7 +215,7 @@ void show_pcix_device_info(void)
 }
 
 int do_show_pcix_device_info(cmd_tbl_t * cmdtp, int flag, int argc,
-			     char *argv[])
+			     char * const argv[])
 {
 	show_pcix_device_info();
 	return 0;
@@ -226,7 +226,7 @@ U_BOOT_CMD(xdevinfo, 1, 1, do_show_pcix_device_info,
 
 extern void show_reset_reg(void);
 
-int do_show_reset_reg_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_show_reset_reg_info(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	show_reset_reg();
 	return 0;
diff --git a/board/amcc/taishan/update.c b/board/amcc/taishan/update.c
index aab3a6577c..3f063a05f0 100644
--- a/board/amcc/taishan/update.c
+++ b/board/amcc/taishan/update.c
@@ -68,7 +68,7 @@ static int update_boot_eeprom(void)
 	return 0;
 }
 
-int do_update_boot_eeprom(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_update_boot_eeprom(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	return update_boot_eeprom();
 }
diff --git a/board/amcc/yucca/cmd_yucca.c b/board/amcc/yucca/cmd_yucca.c
index ed6daa3899..cde13e424b 100644
--- a/board/amcc/yucca/cmd_yucca.c
+++ b/board/amcc/yucca/cmd_yucca.c
@@ -31,10 +31,10 @@
 
 extern void print_evb440spe_info(void);
 static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag,
-		int flag, int argc, char *argv[]);
+		int flag, int argc, char * const argv[]);
 
 /* ------------------------------------------------------------------------- */
-int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return setBootStrapClock (cmdtp, 1, flag, argc, argv);
 }
@@ -46,7 +46,7 @@ int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  *	evb440spe wrclk prom0,prom1
  */
 static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
-		int argc, char *argv[])
+		int argc, char * const argv[])
 {
 	uchar	chip;
 	ulong	data;
diff --git a/board/amirix/ap1000/ap1000.c b/board/amirix/ap1000/ap1000.c
index cadfe0b5bc..c8dd99eb4c 100644
--- a/board/amirix/ap1000/ap1000.c
+++ b/board/amirix/ap1000/ap1000.c
@@ -167,7 +167,7 @@ unsigned int get_device (void)
 /*
    This function loads FPGA configurations from the SystemACE CompactFlash
 */
-int do_loadace (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_loadace (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned char *p = (unsigned char *) AP1000_SYSACE_REGBASE;
 	int cfg;
@@ -247,7 +247,7 @@ int do_loadace (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
   *     -1 if failed
   * </pre>
   */
-int do_swconfigbyte (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_swconfigbyte (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned char *sector_buffer = NULL;
 	unsigned char input_char;
@@ -311,7 +311,7 @@ int do_swconfigbyte (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 
 #define ONE_SECOND 1000000
 
-int do_pause (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_pause (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int pause_time;
 	unsigned int delay_time;
@@ -345,7 +345,7 @@ int do_pause (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_swreconfig (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_swreconfig (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	printf ("Triggering software reconfigure (software config byte is 0x%02x)...\n",
 		*((unsigned char *) (SW_BYTE_SECTOR_ADDR + SW_BYTE_SECTOR_OFFSET)));
@@ -365,7 +365,7 @@ int do_swreconfig (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 #define TEMP_ETHERM_BIT 0x02
 #define TEMP_LTHERM_BIT 0x01
 
-int do_temp_sensor (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_temp_sensor (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char cmd;
 	int ret_val = 0;
diff --git a/board/amirix/ap1000/powerspan.c b/board/amirix/ap1000/powerspan.c
index 28e2bbc478..55451b11f0 100644
--- a/board/amirix/ap1000/powerspan.c
+++ b/board/amirix/ap1000/powerspan.c
@@ -364,7 +364,7 @@ int EEPROMWrite (unsigned char theI2CAddress, unsigned char theValue)
 			  &theValue, I2C_WRITE);
 }
 
-int do_eeprom (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_eeprom (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char cmd;
 	int ret_val = 0;
@@ -690,7 +690,7 @@ int SetTargetImage (int theImageIndex, unsigned int theBlockSize,
 	return 0;
 }
 
-int do_bridge (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bridge (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char cmd;
 	int ret_val = 1;
diff --git a/board/barco/barco.c b/board/barco/barco.c
index c5fe8c4708..b8d968b915 100644
--- a/board/barco/barco.c
+++ b/board/barco/barco.c
@@ -288,7 +288,7 @@ void barcobcd_boot (void)
 	do_bootm (NULL,0,2,bootm_args);
 }
 
-int barcobcd_boot_image (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int barcobcd_boot_image (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #if 0
 	if (argc > 1) {
diff --git a/board/bc3450/cmd_bc3450.c b/board/bc3450/cmd_bc3450.c
index 271ffb1d1f..a9e490252d 100644
--- a/board/bc3450/cmd_bc3450.c
+++ b/board/bc3450/cmd_bc3450.c
@@ -173,7 +173,7 @@ int sm501_gpio_init (void)
  * read and prints the dip switch
  * and/or external config inputs (4bits) 0...0x0F
  */
-int cmd_dip (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int cmd_dip (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	vu_long rc = 0;
 
@@ -205,7 +205,7 @@ U_BOOT_CMD (dip, 1, 1, cmd_dip,
  * buz - turns Buzzer on/off
  */
 #ifdef CONFIG_BC3450_BUZZER
-static int cmd_buz (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int cmd_buz (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc != 2) {
 		printf ("Usage:\nspecify one argument: \"on\" or \"off\"\n");
@@ -236,7 +236,7 @@ U_BOOT_CMD (buz, 2, 1, cmd_buz,
 /*
  * fp - front panel commands
  */
-static int cmd_fp (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int cmd_fp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	sm501_gpio_init ();
 
@@ -491,7 +491,7 @@ static void ds1620_write_state (struct therm *therm)
 	ds1620_out (THERM_START_CONVERT, 0, 0);
 }
 
-static int cmd_temp (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int cmd_temp (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	struct therm therm;
@@ -682,7 +682,7 @@ int can_init (void)
  * return 1 on CAN failure
  * return 0 if no failure
  */
-int do_can (char *argv[])
+int do_can (char * const argv[])
 {
 	int i;
 	struct mpc5xxx_mscan *can1 =
@@ -777,7 +777,7 @@ int do_can (char *argv[])
 /*
  * test - BC3450 HW test routines
  */
-int cmd_test (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int cmd_test (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 #ifdef CONFIG_BC3450_CAN
 	int rcode;
diff --git a/board/bf537-stamp/cmd_bf537led.c b/board/bf537-stamp/cmd_bf537led.c
index 317f088497..7d8f3eadff 100644
--- a/board/bf537-stamp/cmd_bf537led.c
+++ b/board/bf537-stamp/cmd_bf537led.c
@@ -80,7 +80,7 @@ int atoi(char *string)
 	return retval;
 }
 
-int do_bf537led(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bf537led(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int led_mask = 0;
 	int led_current_state = 0;
diff --git a/board/cm-bf527/gpio.c b/board/cm-bf527/gpio.c
index dcf641b6a9..7e0babe891 100644
--- a/board/cm-bf527/gpio.c
+++ b/board/cm-bf527/gpio.c
@@ -11,7 +11,7 @@
 
 #include <asm/blackfin.h>
 
-int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc != 3) {
  show_usage:
diff --git a/board/cm-bf537e/flash.c b/board/cm-bf537e/flash.c
index 25aeed264a..a4c1ec06cb 100644
--- a/board/cm-bf537e/flash.c
+++ b/board/cm-bf537e/flash.c
@@ -11,7 +11,7 @@
 #include <asm/blackfin.h>
 #include "gpio_cfi_flash.h"
 
-int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong faddr = CONFIG_SYS_FLASH_BASE;
 	ushort data;
diff --git a/board/cm-bf537u/flash.c b/board/cm-bf537u/flash.c
index ebe17b6531..52abe790ab 100644
--- a/board/cm-bf537u/flash.c
+++ b/board/cm-bf537u/flash.c
@@ -11,7 +11,7 @@
 #include <asm/blackfin.h>
 #include "gpio_cfi_flash.h"
 
-int do_ph(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ph(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong faddr = CONFIG_SYS_FLASH_BASE;
 	ushort data;
diff --git a/board/cm5200/cmd_cm5200.c b/board/cm5200/cmd_cm5200.c
index cd98ae219f..df372d9306 100644
--- a/board/cm5200/cmd_cm5200.c
+++ b/board/cm5200/cmd_cm5200.c
@@ -29,7 +29,7 @@
 
 #ifdef CONFIG_CMD_BSP
 
-static int do_i2c_test(char *argv[])
+static int do_i2c_test(char * const argv[])
 {
 	unsigned char temp, temp1;
 
@@ -57,7 +57,7 @@ static int do_i2c_test(char *argv[])
 	return 0;
 }
 
-static int do_usb_test(char *argv[])
+static int do_usb_test(char * const argv[])
 {
 	int i;
 	static int usb_stor_curr_dev = -1; /* current device */
@@ -90,7 +90,7 @@ static int do_usb_test(char *argv[])
 	return 0;
 }
 
-static int do_led_test(char *argv[])
+static int do_led_test(char * const argv[])
 {
 	int i = 0;
 	struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
@@ -134,7 +134,7 @@ static int do_led_test(char *argv[])
 	return 0;
 }
 
-static int do_rs232_test(char *argv[])
+static int do_rs232_test(char * const argv[])
 {
 	int error_status = 0;
 	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
@@ -397,7 +397,7 @@ static int do_rs232_test(char *argv[])
 	return error_status;
 }
 
-static int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode = -1;
 
diff --git a/board/cm5200/fwupdate.c b/board/cm5200/fwupdate.c
index 5a27191352..c1a4a19cc0 100644
--- a/board/cm5200/fwupdate.c
+++ b/board/cm5200/fwupdate.c
@@ -35,9 +35,9 @@
 
 #include "fwupdate.h"
 
-extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
+extern int do_bootm(cmd_tbl_t *, int, int, char * const []);
 extern long do_fat_read(const char *, void *, unsigned long, int);
-extern int do_fat_fsload(cmd_tbl_t *, int, int, char *[]);
+extern int do_fat_fsload(cmd_tbl_t *, int, int, char * const []);
 
 static int load_rescue_image(ulong);
 
@@ -47,7 +47,7 @@ void cm5200_fwupdate(void)
 	char *rsargs;
 	char *tmp = NULL;
 	char ka[16];
-	char *argv[3] = { "bootm", ka, NULL };
+	char * const argv[3] = { "bootm", ka, NULL };
 
 	/* Check if rescue system is disabled... */
 	if (getenv("norescue")) {
@@ -99,7 +99,7 @@ static int load_rescue_image(ulong addr)
 	char *tmp;
 	char dev[7];
 	char addr_str[16];
-	char *argv[6] = { "fatload", "usb", dev, addr_str, nxri, NULL };
+	char * const argv[6] = { "fatload", "usb", dev, addr_str, nxri, NULL };
 	block_dev_desc_t *stor_dev = NULL;
 	cmd_tbl_t *bcmd;
 
diff --git a/board/delta/delta.c b/board/delta/delta.c
index a2942135fd..68c39d23ce 100644
--- a/board/delta/delta.c
+++ b/board/delta/delta.c
@@ -240,7 +240,7 @@ static uchar *key_match (uchar *kbd_data)
 	return (NULL);
 }
 
-int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	char keybd_env[2 * KEYBD_DATALEN + 1];
diff --git a/board/digsy_mtc/cmd_mtc.c b/board/digsy_mtc/cmd_mtc.c
index ecea5b3c54..621980dfce 100644
--- a/board/digsy_mtc/cmd_mtc.c
+++ b/board/digsy_mtc/cmd_mtc.c
@@ -68,7 +68,7 @@ static void mtc_calculate_checksum(tx_msp_cmd *packet)
 		packet->cks += buff[i];
 }
 
-static int do_mtc_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_led(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -120,7 +120,7 @@ static int do_mtc_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_key(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_key(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -142,7 +142,7 @@ static int do_mtc_key(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_digout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_digout(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -171,7 +171,7 @@ static int do_mtc_digout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_digin(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_digin(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -205,7 +205,7 @@ static int do_mtc_digin(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_appreg(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_appreg(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -232,7 +232,7 @@ static int do_mtc_appreg(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_version(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_version(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -254,7 +254,7 @@ static int do_mtc_version(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_state(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_state(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	tx_msp_cmd pcmd;
 	rx_msp_cmd prx;
@@ -281,7 +281,7 @@ static int do_mtc_state(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return err;
 }
 
-static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 cmd_tbl_t cmd_mtc_sub[] = {
 	U_BOOT_CMD_MKENT(led, 3, 1, do_mtc_led,
@@ -308,11 +308,11 @@ cmd_tbl_t cmd_mtc_sub[] = {
 	"[command] - get help for command\n"),
 };
 
-static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	extern int _do_help(cmd_tbl_t *cmd_start, int cmd_items,
 			    cmd_tbl_t *cmdtp, int flag,
-			    int argc, char *argv[]);
+			    int argc, char * const argv[]);
 #ifdef CONFIG_SYS_LONGHELP
 	puts("mtc ");
 #endif
@@ -320,7 +320,7 @@ static int do_mtc_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 			ARRAY_SIZE(cmd_mtc_sub), cmdtp, flag, argc, argv);
 }
 
-int cmd_mtc(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int cmd_mtc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	cmd_tbl_t *c;
 	int err = 0;
diff --git a/board/eltec/bab7xx/bab7xx.c b/board/eltec/bab7xx/bab7xx.c
index 1f78f8d16e..f5c9777ee1 100644
--- a/board/eltec/bab7xx/bab7xx.c
+++ b/board/eltec/bab7xx/bab7xx.c
@@ -184,7 +184,7 @@ void after_reloc (ulong dest_addr)
  * do_reset is done here because in this case it is board specific, since the
  * 7xx CPUs can only be reset by external HW (the RTC in this case).
  */
-void do_reset (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[])
+void do_reset (cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[])
 {
 #if defined(CONFIG_RTC_MK48T59)
 	/* trigger watchdog immediately */
diff --git a/board/eltec/elppc/elppc.c b/board/eltec/elppc/elppc.c
index e73c712cbb..cb9ab86cb0 100644
--- a/board/eltec/elppc/elppc.c
+++ b/board/eltec/elppc/elppc.c
@@ -117,7 +117,7 @@ phys_size_t initdram (int board_type)
  * Register PI in the MPC 107 (at offset 0x41090 of the Embedded Utilities
  * Memory Block).
  */
-int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	out8 (MPC107_EUMB_PI, 1);
 	return (0);
diff --git a/board/esd/apc405/apc405.c b/board/esd/apc405/apc405.c
index 72c0907e01..b58c1ebfad 100644
--- a/board/esd/apc405/apc405.c
+++ b/board/esd/apc405/apc405.c
@@ -37,7 +37,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #undef FPGA_DEBUG
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 extern ulong flash_get_size (ulong base, int banknum);
 
diff --git a/board/esd/ar405/ar405.c b/board/esd/ar405/ar405.c
index a632cb42d6..21b2432c47 100644
--- a/board/esd/ar405/ar405.c
+++ b/board/esd/ar405/ar405.c
@@ -30,7 +30,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /*cmd_boot.c*/
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* ------------------------------------------------------------------------- */
@@ -196,7 +196,7 @@ int checkboard (void)
 /*
  * Some test routines
  */
-int do_digtest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_digtest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int k;
@@ -257,7 +257,7 @@ struct io {
 	short dummy;
 };
 
-int do_anatest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_anatest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	short val;
 	int i;
@@ -353,7 +353,7 @@ void cyclicInt(void *ptr)
 }
 
 
-int do_inctest(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_inctest(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong *incin;
 	int i;
diff --git a/board/esd/ash405/ash405.c b/board/esd/ash405/ash405.c
index 0615959316..03c409829c 100644
--- a/board/esd/ash405/ash405.c
+++ b/board/esd/ash405/ash405.c
@@ -33,7 +33,7 @@
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
diff --git a/board/esd/canbt/canbt.c b/board/esd/canbt/canbt.c
index 5a3f61de3c..bfec5489d6 100644
--- a/board/esd/canbt/canbt.c
+++ b/board/esd/canbt/canbt.c
@@ -30,7 +30,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /*cmd_boot.c*/
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 
 /* ------------------------------------------------------------------------- */
diff --git a/board/esd/cms700/cms700.c b/board/esd/cms700/cms700.c
index 391fbf4c1b..20346e15ac 100644
--- a/board/esd/cms700/cms700.c
+++ b/board/esd/cms700/cms700.c
@@ -157,7 +157,7 @@ int eeprom_write_enable (unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/common/auto_update.c b/board/esd/common/auto_update.c
index c4a49e2f18..4dfea71966 100644
--- a/board/esd/common/auto_update.c
+++ b/board/esd/common/auto_update.c
@@ -492,7 +492,7 @@ int do_auto_update(void)
 	return 0;
 }
 
-int auto_update(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int auto_update(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	do_auto_update();
 
diff --git a/board/esd/common/cmd_loadpci.c b/board/esd/common/cmd_loadpci.c
index eecae0a7fd..87da27db10 100644
--- a/board/esd/common/cmd_loadpci.c
+++ b/board/esd/common/cmd_loadpci.c
@@ -37,7 +37,7 @@ extern int do_source (cmd_tbl_t *, int, int, char *[]);
 /*
  * Command loadpci: wait for signal from host and boot image.
  */
-int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 *ptr = 0;
 	int count = 0;
diff --git a/board/esd/common/lcd.c b/board/esd/common/lcd.c
index 5c50b4c8dc..9109b64a1c 100644
--- a/board/esd/common/lcd.c
+++ b/board/esd/common/lcd.c
@@ -339,7 +339,7 @@ int lcd_init(uchar *lcd_reg, uchar *lcd_mem, S1D_REGS *regs, int reg_count,
 	return lcd_bmp(logo_bmp);
 }
 
-int do_esdbmp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_esdbmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 #ifdef CONFIG_VIDEO_SM501
diff --git a/board/esd/common/xilinx_jtag/micro.c b/board/esd/common/xilinx_jtag/micro.c
index 414e82135c..9823e5e8a7 100644
--- a/board/esd/common/xilinx_jtag/micro.c
+++ b/board/esd/common/xilinx_jtag/micro.c
@@ -1828,7 +1828,7 @@ int xsvfExecute(void)
  *               ppzArgv  - array of ptrs to strings (command-line arguments).
  * Returns:      int      - Legacy return value:  1 = success; 0 = error.
  *****************************************************************************/
-int do_cpld(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_cpld(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int     iErrorCode;
 	char*   pzXsvfFileName;
diff --git a/board/esd/cpci2dp/cpci2dp.c b/board/esd/cpci2dp/cpci2dp.c
index 6d9814f163..00456a7003 100644
--- a/board/esd/cpci2dp/cpci2dp.c
+++ b/board/esd/cpci2dp/cpci2dp.c
@@ -149,7 +149,7 @@ int eeprom_write_enable (unsigned dev_addr, int state) {
 #endif
 
 #if defined(CONFIG_SYS_EEPROM_WREN)
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/cpci405/cpci405.c b/board/esd/cpci405/cpci405.c
index 24db8830c7..51d3355816 100644
--- a/board/esd/cpci405/cpci405.c
+++ b/board/esd/cpci405/cpci405.c
@@ -32,7 +32,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void __ft_board_setup(void *blob, bd_t *bd);
 
 #undef FPGA_DEBUG
@@ -650,7 +650,7 @@ int OWReadByte(void)
 	return result;
 }
 
-int do_onewire(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_onewire(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short val;
 	int result;
@@ -698,7 +698,7 @@ U_BOOT_CMD(
 /*
  * Write backplane ip-address...
  */
-int do_get_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_get_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 	char *buf;
@@ -756,7 +756,7 @@ U_BOOT_CMD(
 /*
  * Set and print backplane ip...
  */
-int do_set_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_set_bpip(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *buf;
 	char str[32];
diff --git a/board/esd/cpci5200/cpci5200.c b/board/esd/cpci5200/cpci5200.c
index 36fcf7f87d..abac217527 100644
--- a/board/esd/cpci5200/cpci5200.c
+++ b/board/esd/cpci5200/cpci5200.c
@@ -265,7 +265,7 @@ int board_eth_init(bd_t *bis)
 	return pci_eth_init(bis);
 }
 
-int do_writepci(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_writepci(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int addr;
 	unsigned int size;
diff --git a/board/esd/cpci750/cpci750.c b/board/esd/cpci750/cpci750.c
index a199d46182..f9f7c7fdf1 100644
--- a/board/esd/cpci750/cpci750.c
+++ b/board/esd/cpci750/cpci750.c
@@ -562,7 +562,7 @@ int display_mem_map (void)
 /*
  * Command loadpci: wait for signal from host and boot image.
  */
-int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile unsigned int *ptr;
 	int count = 0;
@@ -1056,7 +1056,7 @@ void board_prebootm_init ()
 	dcache_disable ();
 }
 
-int do_show_config(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_show_config(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int reset_sample_low;
 	unsigned int reset_sample_high;
@@ -1091,7 +1091,7 @@ U_BOOT_CMD(
 	"Show Marvell strapping register (ResetSampleLow ResetSampleHigh)"
 );
 
-int do_pldver(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pldver(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("PLD version:0x%02x\n", in_8((void *)CONFIG_SYS_PLD_VER));
 
diff --git a/board/esd/cpci750/sdram_init.c b/board/esd/cpci750/sdram_init.c
index 5347958085..615e32af9f 100644
--- a/board/esd/cpci750/sdram_init.c
+++ b/board/esd/cpci750/sdram_init.c
@@ -1811,7 +1811,7 @@ int set_dfcdlInit (void)
 	return (0);
 }
 
-int do_show_ecc(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_show_ecc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int ecc_counter;
 	unsigned int ecc_addr;
diff --git a/board/esd/cpciiser4/cpciiser4.c b/board/esd/cpciiser4/cpciiser4.c
index ee90e2c28a..dcea50ee8d 100644
--- a/board/esd/cpciiser4/cpciiser4.c
+++ b/board/esd/cpciiser4/cpciiser4.c
@@ -30,7 +30,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 /*cmd_boot.c*/
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 
diff --git a/board/esd/dasa_sim/cmd_dasa_sim.c b/board/esd/dasa_sim/cmd_dasa_sim.c
index 675e5071d7..aa7437695e 100644
--- a/board/esd/dasa_sim/cmd_dasa_sim.c
+++ b/board/esd/dasa_sim/cmd_dasa_sim.c
@@ -204,7 +204,7 @@ static void clearPci9054 (void)
 
 /* ------------------------------------------------------------------------- */
 int do_pci9054 (cmd_tbl_t * cmdtp, int flag, int argc,
-				char *argv[])
+				char * const argv[])
 {
 	if (strcmp (argv[1], "info") == 0) {
 		showPci9054 ();
diff --git a/board/esd/du405/du405.c b/board/esd/du405/du405.c
index f475d11072..aa7ee92a5f 100644
--- a/board/esd/du405/du405.c
+++ b/board/esd/du405/du405.c
@@ -32,7 +32,7 @@ DECLARE_GLOBAL_DATA_PTR;
 
 /*cmd_boot.c*/
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 
diff --git a/board/esd/du440/du440.c b/board/esd/du440/du440.c
index 111cce52a2..ba3c97c144 100644
--- a/board/esd/du440/du440.c
+++ b/board/esd/du440/du440.c
@@ -409,7 +409,7 @@ int dcf77_status(void)
 	return mv;
 }
 
-int do_dcf77(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dcf77(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int mv;
 	u32 pin, pinold;
@@ -490,7 +490,7 @@ int usbhub_init(void)
 	return ret;
 }
 
-int do_hubinit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_hubinit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	usbhub_init();
 	return 0;
@@ -573,7 +573,7 @@ int boot_eeprom_write (unsigned dev_addr,
 	return rcode;
 }
 
-int do_setup_boot_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_setup_boot_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong sdsdp[4];
 
@@ -673,7 +673,7 @@ int eeprom_write_enable (unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
@@ -727,7 +727,7 @@ static int pld_interrupt(u32 arg)
 	return rc;
 }
 
-int do_waitpwrirq(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_waitpwrirq(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	got_pldirq = 0;
 
@@ -795,7 +795,7 @@ int dvi_init(void)
 	return ret;
 }
 
-int do_dviinit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dviinit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	dvi_init();
 	return 0;
@@ -810,7 +810,7 @@ U_BOOT_CMD(
  * TODO: 'time' command might be useful for others as well.
  *       Move to 'common' directory.
  */
-int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long long start, end;
 	char c, cmd[CONFIG_SYS_CBSIZE];
@@ -874,7 +874,7 @@ unsigned int prng(unsigned int max)
 	return Y;
 }
 
-int do_gfxdemo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_gfxdemo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int color;
 	unsigned int x, y, dx, dy;
diff --git a/board/esd/hh405/hh405.c b/board/esd/hh405/hh405.c
index 4251d51b2e..ca7868cbd8 100644
--- a/board/esd/hh405/hh405.c
+++ b/board/esd/hh405/hh405.c
@@ -236,7 +236,7 @@ static const SMI_REGS init_regs_1024x768 [] =
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
@@ -733,7 +733,7 @@ int eeprom_write_enable (unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/ocrtc/cmd_ocrtc.c b/board/esd/ocrtc/cmd_ocrtc.c
index 5f3254d252..b59689b0a5 100644
--- a/board/esd/ocrtc/cmd_ocrtc.c
+++ b/board/esd/ocrtc/cmd_ocrtc.c
@@ -33,7 +33,7 @@
 /*
  * Set device number on pci board
  */
-int do_setdevice(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_setdevice(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int idx = 1;	  /* start at 1 (skip device 0) */
 	pci_dev_t bdf = 0;
@@ -62,7 +62,7 @@ U_BOOT_CMD(
 /*
  * Get device number on pci board
  */
-int do_getdevice(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_getdevice(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 device;
 	char str[32];
diff --git a/board/esd/pci405/cmd_pci405.c b/board/esd/pci405/cmd_pci405.c
index 1d14611293..2fc9fda5d2 100644
--- a/board/esd/pci405/cmd_pci405.c
+++ b/board/esd/pci405/cmd_pci405.c
@@ -39,7 +39,7 @@ extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
 /*
  * Command loadpci: wait for signal from host and boot image.
  */
-int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int *ptr = 0;
 	int count = 0;
diff --git a/board/esd/pci405/pci405.c b/board/esd/pci405/pci405.c
index 536485727d..b0d7663b23 100644
--- a/board/esd/pci405/pci405.c
+++ b/board/esd/pci405/pci405.c
@@ -34,7 +34,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /* Prototypes */
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 unsigned long fpga_done_state(void);
 unsigned long fpga_init_state(void);
 
@@ -356,7 +356,7 @@ int wpeeprom(int wp)
 	return wp_state;
 }
 
-int do_wpeeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_wpeeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int wp = -1;
 	if (argc >= 2) {
diff --git a/board/esd/pf5200/pf5200.c b/board/esd/pf5200/pf5200.c
index 4e64e83bf6..83dbfcbbda 100644
--- a/board/esd/pf5200/pf5200.c
+++ b/board/esd/pf5200/pf5200.c
@@ -288,7 +288,7 @@ void power_set_reset(int power)
 	}
 }
 
-int do_poweroff(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_poweroff(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	power_set_reset(1);
 	return (0);
@@ -325,7 +325,7 @@ int phypower(int flag)
 	return (status);
 }
 
-int do_phypower(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_phypower(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int status;
 
@@ -340,7 +340,7 @@ int do_phypower(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 U_BOOT_CMD(phypower, 2, 2, do_phypower,
 	   "Switch power of ethernet phy", "");
 
-int do_writepci(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_writepci(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int addr;
 	unsigned int size;
diff --git a/board/esd/plu405/plu405.c b/board/esd/plu405/plu405.c
index 0f7fa69a74..3a8a4cff34 100644
--- a/board/esd/plu405/plu405.c
+++ b/board/esd/plu405/plu405.c
@@ -32,7 +32,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
@@ -322,7 +322,7 @@ int eeprom_write_enable(unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/pmc405de/pmc405de.c b/board/esd/pmc405de/pmc405de.c
index 3725ece394..b84e08ad72 100644
--- a/board/esd/pmc405de/pmc405de.c
+++ b/board/esd/pmc405de/pmc405de.c
@@ -374,7 +374,7 @@ int eeprom_write_enable(unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
@@ -417,7 +417,7 @@ U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
 #include <environment.h>
 extern env_t *env_ptr;
 
-int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 pram, nextbase, base;
 	char *v;
@@ -477,7 +477,7 @@ U_BOOT_CMD(
 );
 #endif /* CONFIG_PRAM */
 
-int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct ppc4xx_gpio *gpio0 = (struct ppc4xx_gpio *)GPIO_BASE;
 	setbits_be32(&gpio0->tcr, CONFIG_SYS_GPIO_SELFRST_N);
@@ -489,7 +489,7 @@ U_BOOT_CMD(
 	""
 );
 
-int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct pmc405de_cpld *cpld =
 		(struct pmc405de_cpld *)CONFIG_SYS_CPLD_BASE;
diff --git a/board/esd/pmc440/cmd_pmc440.c b/board/esd/pmc440/cmd_pmc440.c
index 476e940962..200d7ee30d 100644
--- a/board/esd/pmc440/cmd_pmc440.c
+++ b/board/esd/pmc440/cmd_pmc440.c
@@ -67,7 +67,7 @@ int fpga_interrupt(u32 arg)
 	return rc;
 }
 
-int do_waithci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_waithci(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
 
@@ -118,7 +118,7 @@ void dump_fifo(pmc440_fpga_t *fpga, int f, int *n)
 	}
 }
 
-int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fifo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
 	int i;
@@ -269,7 +269,7 @@ U_BOOT_CMD(
 	"'fifo' or 'address'"
 );
 
-int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_setup_bootstrap_eeprom(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong sdsdp[5];
 	ulong delay;
@@ -344,7 +344,7 @@ U_BOOT_CMD(
 #include <environment.h>
 extern env_t *env_ptr;
 
-int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_painit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 pram, nextbase, base;
 	char *v;
@@ -404,7 +404,7 @@ U_BOOT_CMD(
 );
 #endif /* CONFIG_PRAM */
 
-int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_selfreset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	in_be32((void*)CONFIG_SYS_RESET_BASE);
 	return 0;
@@ -415,7 +415,7 @@ U_BOOT_CMD(
 	""
 );
 
-int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_resetout(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	pmc440_fpga_t *fpga = (pmc440_fpga_t *)FPGA_BA;
 
@@ -452,7 +452,7 @@ U_BOOT_CMD(
 	""
 );
 
-int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_inta(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (is_monarch()) {
 		printf("This command is only supported in non-monarch mode\n");
@@ -485,7 +485,7 @@ U_BOOT_CMD(
 );
 
 /* test-only */
-int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pmm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong pciaddr;
 
@@ -518,7 +518,7 @@ U_BOOT_CMD(
 );
 
 #if defined(CONFIG_SYS_EEPROM_WREN)
-int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/tasreg/tasreg.c b/board/esd/tasreg/tasreg.c
index bd9fb2fc2b..270caac08c 100644
--- a/board/esd/tasreg/tasreg.c
+++ b/board/esd/tasreg/tasreg.c
@@ -29,7 +29,7 @@
 
 
 /* Prototypes */
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len);
 int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len);
 
@@ -219,7 +219,7 @@ int i2c_probe(uchar addr);
 
 /*
  */
-int do_iploop(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_iploop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 
@@ -254,7 +254,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_codec(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_codec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar buf[8];
 
@@ -307,7 +307,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_saa(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_saa(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	ulong instr;
@@ -340,7 +340,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_iwrite(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_iwrite(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	ulong data0;
@@ -379,7 +379,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_iread(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_iread(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	ulong cnt;
@@ -411,7 +411,7 @@ U_BOOT_CMD(
 
 /*
  */
-int do_ireadl(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ireadl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	uchar buf[32];
diff --git a/board/esd/vme8349/caddy.c b/board/esd/vme8349/caddy.c
index bda41177d9..ca8357d100 100644
--- a/board/esd/vme8349/caddy.c
+++ b/board/esd/vme8349/caddy.c
@@ -53,7 +53,7 @@ void generate_answer(struct caddy_cmd *cmd, uint32_t status, uint32_t *result)
 		caddy_interface->answer_in = ptr;
 }
 
-int do_caddy(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_caddy(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long base_addr;
 	uint32_t ptr;
diff --git a/board/esd/voh405/voh405.c b/board/esd/voh405/voh405.c
index a5600de6fc..6ed493ea66 100644
--- a/board/esd/voh405/voh405.c
+++ b/board/esd/voh405/voh405.c
@@ -33,7 +33,7 @@
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 extern void lxt971_no_sleep(void);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
@@ -356,7 +356,7 @@ int eeprom_write_enable (unsigned dev_addr, int state)
 	return state;
 }
 
-int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int query = argc == 1;
 	int state = 0;
diff --git a/board/esd/wuh405/wuh405.c b/board/esd/wuh405/wuh405.c
index 01966eec26..704cd02702 100644
--- a/board/esd/wuh405/wuh405.c
+++ b/board/esd/wuh405/wuh405.c
@@ -32,7 +32,7 @@
 #define FPGA_DEBUG
 #endif
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* fpga configuration data - gzip compressed and generated by bin2c */
 const unsigned char fpgadata[] =
diff --git a/board/evb64260/zuma_pbb.c b/board/evb64260/zuma_pbb.c
index cab4fcae17..aa15fa015c 100644
--- a/board/evb64260/zuma_pbb.c
+++ b/board/evb64260/zuma_pbb.c
@@ -174,14 +174,14 @@ static int last_cmd = 4;		/* write increment */
 static int last_size = 64;
 
 int
-do_zuma_init_pbb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_zuma_init_pbb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	zuma_init_pbb ();
 	return 0;
 }
 
 int
-do_zuma_test_dma (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_zuma_test_dma (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc > 1) {
 		last_cmd = simple_strtoul (argv[1], NULL, 10);
@@ -194,7 +194,7 @@ do_zuma_test_dma (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 int
-do_zuma_init_mbox (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_zuma_init_mbox (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	zuma_mbox_init ();
 	return 0;
diff --git a/board/freescale/common/ngpixis.c b/board/freescale/common/ngpixis.c
index bb6794e859..a135fbe5ef 100644
--- a/board/freescale/common/ngpixis.c
+++ b/board/freescale/common/ngpixis.c
@@ -92,7 +92,7 @@ void set_altbank(void)
 }
 
 
-int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int i;
 	char *p_altbank = NULL;
diff --git a/board/freescale/common/pixis.c b/board/freescale/common/pixis.c
index 119eaf95af..a35b5cfe3e 100644
--- a/board/freescale/common/pixis.c
+++ b/board/freescale/common/pixis.c
@@ -284,7 +284,7 @@ static void set_px_go_with_watchdog(void)
  *
  */
 static int pixis_disable_watchdog_cmd(cmd_tbl_t *cmdtp, int flag, int argc,
-				      char *argv[])
+				      char * const argv[])
 {
 	/* Disable the VELA sequencer and the watchdog */
 	clrbits_8(pixis_base + PIXIS_VCTL, 9);
@@ -302,7 +302,7 @@ U_BOOT_CMD(
 
 /* Enable or disable SGMII mode for a TSEC
  */
-static int pixis_set_sgmii(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int pixis_set_sgmii(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int which_tsec = -1;
 	unsigned char mask;
@@ -430,7 +430,7 @@ static unsigned long strfractoint(char *strptr)
 	return intval + decval;
 }
 
-static int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int pixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int i;
 	char *p_cf = NULL;
diff --git a/board/freescale/common/sys_eeprom.c b/board/freescale/common/sys_eeprom.c
index 661015e000..5a8f4f5810 100644
--- a/board/freescale/common/sys_eeprom.c
+++ b/board/freescale/common/sys_eeprom.c
@@ -314,7 +314,7 @@ static void set_mac_address(unsigned int index, const char *string)
 	update_crc();
 }
 
-int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char cmd;
 
diff --git a/board/freescale/m5249evb/m5249evb.c b/board/freescale/m5249evb/m5249evb.c
index b1ccbebde5..ac1937b338 100644
--- a/board/freescale/m5249evb/m5249evb.c
+++ b/board/freescale/m5249evb/m5249evb.c
@@ -28,7 +28,7 @@
 
 
 /* Prototypes */
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 int checkboard (void) {
 	ulong val;
diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
index a7b7f45458..0b7f787e5d 100644
--- a/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
+++ b/board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c
@@ -111,7 +111,7 @@ void mpc8610hpcd_diu_init(void)
 }
 
 int mpc8610diu_init_show_bmp(cmd_tbl_t *cmdtp,
-			     int flag, int argc, char *argv[])
+			     int flag, int argc, char * const argv[])
 {
 	unsigned int addr;
 
diff --git a/board/funkwerk/vovpn-gw/vovpn-gw.c b/board/funkwerk/vovpn-gw/vovpn-gw.c
index 8c4abdd370..889ba3f074 100644
--- a/board/funkwerk/vovpn-gw/vovpn-gw.c
+++ b/board/funkwerk/vovpn-gw/vovpn-gw.c
@@ -306,7 +306,7 @@ int misc_init_r (void)
 
 #if defined(CONFIG_HAVE_OWN_RESET)
 int
-do_reset (void *cmdtp, int flag, int argc, char *argv[])
+do_reset (void *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile ioport_t *iop;
 
diff --git a/board/g2000/g2000.c b/board/g2000/g2000.c
index 03cd6b8847..8b15e51f1d 100644
--- a/board/g2000/g2000.c
+++ b/board/g2000/g2000.c
@@ -148,7 +148,7 @@ phys_size_t initdram (int board_type)
 }
 
 #if 0 /* test-only !!! */
-int do_dumpebc(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dumpebc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong ap, cr;
 
@@ -174,7 +174,7 @@ U_BOOT_CMD(
 );
 
 
-int do_dumpdcr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dumpdcr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 
@@ -196,7 +196,7 @@ U_BOOT_CMD(
 );
 
 
-int do_dumpspr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dumpspr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("\nSpecial Purpose Registers (SPR's) for PPC405GP:");
 	printf("\n%04x %08x ", 947, mfspr(947));
diff --git a/board/hymod/bsp.c b/board/hymod/bsp.c
index 262070fdff..5dd0311d41 100644
--- a/board/hymod/bsp.c
+++ b/board/hymod/bsp.c
@@ -141,7 +141,7 @@ fpga_load (int mezz, uchar *addr, ulong size)
 
 /* ------------------------------------------------------------------------- */
 int
-do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar *addr, *save_addr;
 	ulong size;
@@ -301,7 +301,7 @@ U_BOOT_CMD(
 );
 /* ------------------------------------------------------------------------- */
 int
-do_eecl (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_eecl (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar data[HYMOD_EEPROM_SIZE];
 	uint addr = CONFIG_SYS_I2C_EEPROM_ADDR;
@@ -346,7 +346,7 @@ U_BOOT_CMD(
 /* ------------------------------------------------------------------------- */
 
 int
-do_htest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_htest (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #if 0
 	int rc;
diff --git a/board/inka4x0/inkadiag.c b/board/inka4x0/inkadiag.c
index 0a75abde3f..637bb5a7b3 100644
--- a/board/inka4x0/inkadiag.c
+++ b/board/inka4x0/inkadiag.c
@@ -131,7 +131,7 @@ static void inka_digio_set_output(unsigned int state, int which)
 }
 
 static int do_inkadiag_io(cmd_tbl_t *cmdtp, int flag, int argc,
-			  char *argv[]) {
+			  char * const argv[]) {
 	unsigned int state, val;
 
 	switch (argc) {
@@ -237,7 +237,7 @@ static int ser_getc(volatile struct mpc5xxx_psc *psc)
 }
 
 static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc,
-			      char *argv[]) {
+			      char * const argv[]) {
 	volatile struct NS16550 *uart;
 	volatile struct mpc5xxx_psc *psc;
 	unsigned int num, mode;
@@ -389,7 +389,7 @@ static void buzzer_turn_off(void)
 }
 
 static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
-			      char *argv[]) {
+			      char * const argv[]) {
 
 	unsigned int period, freq;
 	int prev, i;
@@ -435,7 +435,7 @@ static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
 	return 0;
 }
 
-static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 cmd_tbl_t cmd_inkadiag_sub[] = {
 	U_BOOT_CMD_MKENT(io, 1, 1, do_inkadiag_io, "read digital input",
@@ -450,10 +450,10 @@ cmd_tbl_t cmd_inkadiag_sub[] = {
 };
 
 static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag,
-			    int argc, char *argv[]) {
+			    int argc, char * const argv[]) {
 	extern int _do_help (cmd_tbl_t *cmd_start, int cmd_items,
 			     cmd_tbl_t *cmdtp, int flag,
-			     int argc, char *argv[]);
+			     int argc, char * const argv[]);
 	/* do_help prints command name - we prepend inkadiag to our subcommands! */
 #ifdef CONFIG_SYS_LONGHELP
 	puts ("inkadiag ");
@@ -463,7 +463,7 @@ static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag,
 }
 
 static int do_inkadiag(cmd_tbl_t *cmdtp, int flag, int argc,
-		       char *argv[]) {
+		       char * const argv[]) {
 	cmd_tbl_t *c;
 
 	c = find_cmd_tbl(argv[1], &cmd_inkadiag_sub[0], ARRAY_SIZE(cmd_inkadiag_sub));
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c
index 53cf474767..3a33b5a511 100644
--- a/board/keymile/km_arm/km_arm.c
+++ b/board/keymile/km_arm/km_arm.c
@@ -183,7 +183,7 @@ int board_init(void)
 }
 
 #if defined(CONFIG_CMD_SF)
-int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 tmp;
 	if (argc < 2) {
diff --git a/board/lwmon/lwmon.c b/board/lwmon/lwmon.c
index 8e27778939..61a1e1417f 100644
--- a/board/lwmon/lwmon.c
+++ b/board/lwmon/lwmon.c
@@ -791,7 +791,7 @@ void lcd_show_board_info(void)
 #if defined(CONFIG_CMD_BSP)
 /***********************************************************************
 F* Function:     int do_pic (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -800,7 +800,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -816,7 +816,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_pic (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pic (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar reg, val;
 
@@ -857,7 +857,7 @@ U_BOOT_CMD(
 
 /***********************************************************************
 F* Function:     int do_kbd (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -866,7 +866,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -881,7 +881,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	char keybd_env[2 * KEYBD_DATALEN + 1];
@@ -918,7 +918,7 @@ U_BOOT_CMD(
 
 /***********************************************************************
 F* Function:     int do_lsb (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -927,7 +927,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -944,7 +944,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_lsb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_lsb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar val;
 	immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
diff --git a/board/lwmon5/kbd.c b/board/lwmon5/kbd.c
index be1a1dfeb5..0e26b890b2 100644
--- a/board/lwmon5/kbd.c
+++ b/board/lwmon5/kbd.c
@@ -380,7 +380,7 @@ static uchar *key_match (uchar *kbd_data)
 
 /***********************************************************************
 F* Function:     int do_kbd (cmd_tbl_t *cmdtp, int flag,
-F*                           int argc, char *argv[]) P*A*Z*
+F*                           int argc, char * const argv[]) P*A*Z*
  *
 P* Parameters:   cmd_tbl_t *cmdtp
 P*                - Pointer to our command table entry
@@ -389,7 +389,7 @@ P*                - If the CMD_FLAG_REPEAT bit is set, then this call is
 P*                  a repetition
 P*               int argc
 P*                - Argument count
-P*               char *argv[]
+P*               char * const argv[]
 P*                - Array of the actual arguments
 P*
 P* Returnvalue:  int
@@ -404,7 +404,7 @@ D* Design:       wd@denx.de
 C* Coding:       wd@denx.de
 V* Verification: dzu@denx.de
  ***********************************************************************/
-int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	char keybd_env[2 * KEYBD_DATALEN + 1];
diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c
index 415e036c00..3948c13b64 100644
--- a/board/lwmon5/lwmon5.c
+++ b/board/lwmon5/lwmon5.c
@@ -304,7 +304,7 @@ void hw_watchdog_reset(void)
 	gpio_write_bit(CONFIG_SYS_GPIO_WATCHDOG, val);
 }
 
-int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
diff --git a/board/micronas/vct/smc_eeprom.c b/board/micronas/vct/smc_eeprom.c
index 6587f13e2f..b5a552134e 100644
--- a/board/micronas/vct/smc_eeprom.c
+++ b/board/micronas/vct/smc_eeprom.c
@@ -316,7 +316,7 @@ DONE:
 	return result;
 }
 
-static int do_eeprom_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_eeprom_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unchar data = 0, index = 0;
 	ulong gpio_old_val;
@@ -337,14 +337,14 @@ static int do_eeprom_dump(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_eeprom_erase_all(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_eeprom_erase_all(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	eeprom_erase_all();
 
 	return 0;
 }
 
-static int do_eeprom_save_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_eeprom_save_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong hi16, lo32;
 	unchar ethaddr[6], i;
diff --git a/board/mpl/common/common_util.c b/board/mpl/common/common_util.c
index 32bf244935..a3722b2024 100644
--- a/board/mpl/common/common_util.c
+++ b/board/mpl/common/common_util.c
@@ -428,7 +428,7 @@ void check_env(void)
 
 #endif /* #if !defined(CONFIG_PATI) */
 
-int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong size,src,ld_addr;
 	int result;
diff --git a/board/mpl/mip405/cmd_mip405.c b/board/mpl/mip405/cmd_mip405.c
index cd93a7ca0b..8ddb54db1c 100644
--- a/board/mpl/mip405/cmd_mip405.c
+++ b/board/mpl/mip405/cmd_mip405.c
@@ -30,12 +30,12 @@
 
 
 extern void print_mip405_info(void);
-extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 
 /* ------------------------------------------------------------------------- */
 
-int do_mip405(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mip405(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 
 	ulong led_on;
diff --git a/board/mpl/pati/cmd_pati.c b/board/mpl/pati/cmd_pati.c
index 740881e6d4..aba11d5a75 100644
--- a/board/mpl/pati/cmd_pati.c
+++ b/board/mpl/pati/cmd_pati.c
@@ -31,7 +31,7 @@
 #include "pci_eeprom.h"
 
 extern void show_pld_regs(void);
-extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 extern void user_led0(int led_on);
 extern void user_led1(int led_on);
@@ -355,7 +355,7 @@ static void display_pci_regs(void)
 }
 
 
-int do_pati(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pati(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (strcmp(argv[1], "info") == 0)
 	{
diff --git a/board/mpl/pip405/cmd_pip405.c b/board/mpl/pip405/cmd_pip405.c
index 6bbae89e5d..554c8d1d72 100644
--- a/board/mpl/pip405/cmd_pip405.c
+++ b/board/mpl/pip405/cmd_pip405.c
@@ -30,12 +30,12 @@
 
 
 extern void print_pip405_info(void);
-extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 
 /* ------------------------------------------------------------------------- */
 
-int do_pip405(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pip405(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 
 	ulong led_on,led_nr;
diff --git a/board/mpl/vcma9/cmd_vcma9.c b/board/mpl/vcma9/cmd_vcma9.c
index 0ee959507f..0d5f46e5cd 100644
--- a/board/mpl/vcma9/cmd_vcma9.c
+++ b/board/mpl/vcma9/cmd_vcma9.c
@@ -50,11 +50,11 @@ extern int vcma9_nanderase(void);
 extern int vcma9_nandread(ulong);
 extern int vcma9_nandwrite(ulong);
 extern int vcma9_dactest(int);
-extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* ------------------------------------------------------------------------- */
 
-int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_vcma9(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct eth_device *dev;
 	char cs8900_name[10];
diff --git a/board/netstar/crcit.c b/board/netstar/crcit.c
index 0eef41a11e..a16264914c 100644
--- a/board/netstar/crcit.c
+++ b/board/netstar/crcit.c
@@ -71,7 +71,7 @@ static int do_crc(char *path, unsigned version)
 	return EXIT_SUCCESS;
 }
 
-int main(int argc, char **argv)
+int main(int argc, char * const *argv)
 {
 	if (argc == 2) {
 		return do_crc(argv[1], 0);
diff --git a/board/netstar/eeprom.c b/board/netstar/eeprom.c
index aca4458e29..aa375a4b1a 100644
--- a/board/netstar/eeprom.c
+++ b/board/netstar/eeprom.c
@@ -149,7 +149,7 @@ static int parse_element(char *s, unsigned char *buf, int len)
 	return cnt;
 }
 
-int eeprom(int argc, char *argv[])
+int eeprom(int argc, char * const argv[])
 {
 	int i, len, ret;
 	unsigned char buf[58], *p;
diff --git a/board/pcippc2/pcippc2.c b/board/pcippc2/pcippc2.c
index 6ee44d691d..199def4678 100644
--- a/board/pcippc2/pcippc2.c
+++ b/board/pcippc2/pcippc2.c
@@ -69,7 +69,7 @@ phys_size_t initdram (int board_type)
 	return cpc710_ram_init ();
 }
 
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	out32 (REG (CPC0, SPOR), 0);
 	iobarrier_rw ();
@@ -206,7 +206,7 @@ void watchdog_reset (void)
 }
 
 #if defined(CONFIG_CMD_BSP)
-int do_wd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_wd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	switch (argc) {
 	case 1:
diff --git a/board/pcs440ep/pcs440ep.c b/board/pcs440ep/pcs440ep.c
index a6885d6895..d7adff2f8e 100644
--- a/board/pcs440ep/pcs440ep.c
+++ b/board/pcs440ep/pcs440ep.c
@@ -567,7 +567,7 @@ void hw_watchdog_reset(void)
  * "led" Commando for the U-Boot shell
  *
  ************************************************************************/
-int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int	rcode = 0, i;
 	ulong	pattern = 0;
@@ -611,7 +611,7 @@ U_BOOT_CMD(
  * "sha1" Commando for the U-Boot shell
  *
  ************************************************************************/
-int do_sha1 (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sha1 (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int	rcode = -1;
 
diff --git a/board/pdm360ng/pdm360ng.c b/board/pdm360ng/pdm360ng.c
index 8fe5ac874e..29a095d738 100644
--- a/board/pdm360ng/pdm360ng.c
+++ b/board/pdm360ng/pdm360ng.c
@@ -633,7 +633,7 @@ static int set_lcd_brightness(char *brightness)
 }
 
 static int cmd_lcd_brightness(cmd_tbl_t *cmdtp, int flag,
-			      int argc, char *argv[])
+			      int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
diff --git a/board/pn62/cmd_pn62.c b/board/pn62/cmd_pn62.c
index 43295d6e36..73294351ba 100644
--- a/board/pn62/cmd_pn62.c
+++ b/board/pn62/cmd_pn62.c
@@ -36,7 +36,7 @@ extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
 /*
  * Command led: controls the various LEDs 0..11 on the PN62 card.
  */
-int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_led (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     unsigned int number, function;
 
@@ -64,7 +64,7 @@ U_BOOT_CMD(
 #define CMD_MOVE_WINDOW 0x1
 #define CMD_BOOT_IMAGE  0x2
 
-int do_loadpci (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_loadpci (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *s;
     ulong addr = 0, count = 0;
diff --git a/board/ppmc7xx/ppmc7xx.c b/board/ppmc7xx/ppmc7xx.c
index 944cd4ddc6..0cad897349 100644
--- a/board/ppmc7xx/ppmc7xx.c
+++ b/board/ppmc7xx/ppmc7xx.c
@@ -89,7 +89,7 @@ int misc_init_r( void )
  *
  * Shell command to reset the board.
  */
-void do_reset( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+void do_reset( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[] )
 {
 	printf( "Resetting...\n" );
 
diff --git a/board/prodrive/pdnb3/pdnb3.c b/board/prodrive/pdnb3/pdnb3.c
index 69f8f9bbca..3f2deed1e2 100644
--- a/board/prodrive/pdnb3/pdnb3.c
+++ b/board/prodrive/pdnb3/pdnb3.c
@@ -29,7 +29,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /* Prototypes */
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* predefine these here for FPGA programming (before including fpga.c) */
 #define SET_FPGA(data)	*IXP425_GPIO_GPOUTR = (data)
@@ -210,7 +210,7 @@ int do_fpga_boot(unsigned char *fpgadata)
 	return (0);
 }
 
-int do_fpga(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fpga(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 
diff --git a/board/pxa255_idp/pxa_idp.c b/board/pxa255_idp/pxa_idp.c
index 05e30ecf00..a54a95dca9 100644
--- a/board/pxa255_idp/pxa_idp.c
+++ b/board/pxa255_idp/pxa_idp.c
@@ -122,7 +122,7 @@ void blink_c(void)
 	GPCR0 = led_bit;
 }
 
-int do_idpcmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_idpcmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("IDPCMD started\n");
 	return 0;
diff --git a/board/r360mpi/r360mpi.c b/board/r360mpi/r360mpi.c
index 703af73aad..b5315ad041 100644
--- a/board/r360mpi/r360mpi.c
+++ b/board/r360mpi/r360mpi.c
@@ -391,7 +391,7 @@ static uchar *key_match (uchar * kbd_str)
 #endif	/* CONFIG_PREBOOT */
 
 /* Read Keyboard status */
-int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar kbd_data[KEYBD_DATALEN];
 	uchar keybd_env[2 * KEYBD_DATALEN + 1];
diff --git a/board/renesas/sh7785lcr/rtl8169_mac.c b/board/renesas/sh7785lcr/rtl8169_mac.c
index 634efb42a8..dae01ec773 100644
--- a/board/renesas/sh7785lcr/rtl8169_mac.c
+++ b/board/renesas/sh7785lcr/rtl8169_mac.c
@@ -298,7 +298,7 @@ void mac_read(void)
 		data[0], data[1], data[2], data[3], data[4], data[5]);
 }
 
-int do_set_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_set_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	unsigned char mac[6];
@@ -328,7 +328,7 @@ U_BOOT_CMD(
 	"setmac <mac address> - write MAC address for RTL8110SCL"
 );
 
-int do_print_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_print_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc != 1) {
 		cmd_usage(cmdtp);
diff --git a/board/renesas/sh7785lcr/selfcheck.c b/board/renesas/sh7785lcr/selfcheck.c
index e803b3c9c1..44247c850f 100644
--- a/board/renesas/sh7785lcr/selfcheck.c
+++ b/board/renesas/sh7785lcr/selfcheck.c
@@ -108,7 +108,7 @@ static void test_pci(void)
 	printf("PCI CN2 ID = %08x\n", readl(0xfe040220));
 }
 
-int do_hw_test(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_hw_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *cmd;
 
diff --git a/board/renesas/sh7785lcr/sh7785lcr.c b/board/renesas/sh7785lcr/sh7785lcr.c
index 9948d04eae..cad3905ff2 100644
--- a/board/renesas/sh7785lcr/sh7785lcr.c
+++ b/board/renesas/sh7785lcr/sh7785lcr.c
@@ -56,7 +56,7 @@ int board_eth_init(bd_t *bis)
 }
 
 #if defined(CONFIG_SH_32BIT)
-int do_pmb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pmb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	/* clear ITLB */
 	writel(0x00000004, 0xff000010);
diff --git a/board/sacsng/sacsng.c b/board/sacsng/sacsng.c
index 49d8bba15d..8edca59c18 100644
--- a/board/sacsng/sacsng.c
+++ b/board/sacsng/sacsng.c
@@ -38,7 +38,7 @@
 extern void eth_loopback_test(void);
 #endif /* CONFIG_ETHER_LOOPBACK_TEST */
 
-extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 #include "clkinit.h"
 #include "ioconfig.h" /* I/O configuration table */
diff --git a/board/sandburst/common/ppc440gx_i2c.c b/board/sandburst/common/ppc440gx_i2c.c
index d286714919..68acdd8d14 100644
--- a/board/sandburst/common/ppc440gx_i2c.c
+++ b/board/sandburst/common/ppc440gx_i2c.c
@@ -465,7 +465,7 @@ void i2c_reg_write1(uchar i2c_addr, uchar reg, uchar val)
 }
 
 
-int do_i2c1_probe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_i2c1_probe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int j;
 #if defined(CONFIG_SYS_I2C_NOPROBES)
diff --git a/board/sandburst/karef/karef.c b/board/sandburst/karef/karef.c
index 92b15aa50f..6457f9b1f8 100644
--- a/board/sandburst/karef/karef.c
+++ b/board/sandburst/karef/karef.c
@@ -518,7 +518,7 @@ void fpga_init(void)
 	return;
 }
 
-int karefSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int karefSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short sernum;
 	char envstr[255];
@@ -578,7 +578,7 @@ int karefSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return(1);
 }
 
-int karefRecover(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int karefRecover(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short sernum;
 	char envstr[255];
diff --git a/board/sandburst/metrobox/metrobox.c b/board/sandburst/metrobox/metrobox.c
index 0c8e6dfb1e..76d8293fd6 100644
--- a/board/sandburst/metrobox/metrobox.c
+++ b/board/sandburst/metrobox/metrobox.c
@@ -485,7 +485,7 @@ void fpga_init(void)
 	return;
 }
 
-int metroboxSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int metroboxSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short sernum;
 	char envstr[255];
@@ -545,7 +545,7 @@ int metroboxSetupVars(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return(1);
 }
 
-int metroboxRecover(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int metroboxRecover(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short sernum;
 	char envstr[255];
diff --git a/board/siemens/common/fpga.c b/board/siemens/common/fpga.c
index 4b45902aa2..5660c09148 100644
--- a/board/siemens/common/fpga.c
+++ b/board/siemens/common/fpga.c
@@ -222,7 +222,7 @@ static int fpga_load (fpga_t* fpga, ulong addr, int checkall)
 
 /* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . */
 
-int do_fpga (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fpga (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     ulong addr = 0;
     int i;
diff --git a/board/siemens/pcu_e/pcu_e.c b/board/siemens/pcu_e/pcu_e.c
index 827578c3a9..14d75ea429 100644
--- a/board/siemens/pcu_e/pcu_e.c
+++ b/board/siemens/pcu_e/pcu_e.c
@@ -373,7 +373,7 @@ void reset_phy (void)
 #define	PUMA_READ_MODE	0
 #define PUMA_LOAD_MODE	1
 
-int do_puma (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_puma (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr, len;
 
diff --git a/board/spear/common/spr_misc.c b/board/spear/common/spr_misc.c
index e35691200d..d99036bef3 100644
--- a/board/spear/common/spr_misc.c
+++ b/board/spear/common/spr_misc.c
@@ -206,7 +206,7 @@ static int write_mac(uchar *mac)
 	return -1;
 }
 
-int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	void (*sram_setfreq) (unsigned int, unsigned int);
 	struct chip_data *chip = &chip_data;
diff --git a/board/tcm-bf537/flash.c b/board/tcm-bf537/flash.c
index 52c5bd83c9..14055c6177 100644
--- a/board/tcm-bf537/flash.c
+++ b/board/tcm-bf537/flash.c
@@ -11,7 +11,7 @@
 #include <asm/blackfin.h>
 #include "gpio_cfi_flash.h"
 
-int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong faddr = CONFIG_SYS_FLASH_BASE;
 	ushort data;
diff --git a/board/tqc/tqm5200/cmd_stk52xx.c b/board/tqc/tqm5200/cmd_stk52xx.c
index e309beb1dc..0db705049f 100644
--- a/board/tqc/tqm5200/cmd_stk52xx.c
+++ b/board/tqc/tqm5200/cmd_stk52xx.c
@@ -301,7 +301,7 @@ static int i2s_squarewave(unsigned long duration, unsigned int freq,
 	return 0;
 }
 
-static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long reg, val, duration;
 	char *tmp;
@@ -419,7 +419,7 @@ static int cmd_sound(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 1;
 }
 
-static int cmd_wav(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int cmd_wav(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long length, addr;
 	unsigned char volume;
@@ -484,7 +484,7 @@ static int cmd_wav(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return rcode;
 }
 
-static int cmd_beep(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int cmd_beep(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned char volume;
 	unsigned int channel;
@@ -581,7 +581,7 @@ void led_init(void)
  * return 1 if led number unknown
  * return 0 else
  */
-int do_led(char *argv[])
+int do_led(char * const argv[])
 {
 	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
 	struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
@@ -892,7 +892,7 @@ int can_init(void)
  * return 1 on CAN failure
  * return 0 if no failure
  */
-int do_can(char *argv[])
+int do_can(char * const argv[])
 {
 	int i;
 	struct mpc5xxx_mscan *can1 =
@@ -994,7 +994,7 @@ int do_can(char *argv[])
  * return 3 on rts/cts failure
  * return 0 if no failure
  */
-int do_rs232(char *argv[])
+int do_rs232(char * const argv[])
 {
 	int error_status = 0;
 	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
@@ -1123,7 +1123,7 @@ static void sm501_backlight (unsigned int state)
 }
 #endif /* !CONFIG_FO300 & !CONFIG_TQM5200S */
 
-int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int cmd_fkt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode;
 
diff --git a/board/tqc/tqm5200/cmd_tb5200.c b/board/tqc/tqm5200/cmd_tb5200.c
index 578e716e7a..79c1b980a2 100644
--- a/board/tqc/tqm5200/cmd_tb5200.c
+++ b/board/tqc/tqm5200/cmd_tb5200.c
@@ -42,7 +42,7 @@ static void led_init(void)
 	gpt->gpt4.emsr |=  0x00000024;
 }
 
-int cmd_led(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int cmd_led(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct mpc5xxx_gpt_0_7 *gpt = (struct mpc5xxx_gpt_0_7 *)MPC5XXX_GPT;
 
@@ -72,7 +72,7 @@ static void sm501_backlight (unsigned int state)
 			~((1 << 26) | (1 << 27));
 }
 
-int cmd_backlight(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int cmd_backlight(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (strcmp (argv[1], "on") == 0) {
 		debug ("switch backlight on\n");
diff --git a/board/tqc/tqm8272/tqm8272.c b/board/tqc/tqm8272/tqm8272.c
index 92f74a39cc..96ec078fd9 100644
--- a/board/tqc/tqm8272/tqm8272.c
+++ b/board/tqc/tqm8272/tqm8272.c
@@ -858,7 +858,7 @@ int board_early_init_r(void)
 }
 #endif
 
-int do_hwib_dump (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_hwib_dump (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	dump_hwib ();
 	return 0;
diff --git a/board/trab/cmd_trab.c b/board/trab/cmd_trab.c
index 472d7d81e9..6d23470f84 100644
--- a/board/trab/cmd_trab.c
+++ b/board/trab/cmd_trab.c
@@ -109,16 +109,16 @@ extern s32 tsc2000_contact_temp (void);
 extern void tsc2000_spi_init(void);
 
 /* function declarations */
-int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 int i2c_write_multiple (uchar chip, uint addr, int alen,
 			uchar *buffer, int len);
 int i2c_read_multiple (uchar chip, uint addr, int alen,
 			uchar *buffer, int len);
-int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /* helper functions */
 static void adc_init (void);
@@ -162,7 +162,7 @@ typedef struct test_function_s {
 test_function_t test_function[BIF_MAX];
 
 
-int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_burn_in (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int cycle_status;
@@ -266,7 +266,7 @@ U_BOOT_CMD(
 );
 
 
-int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dip (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i, dip;
 
@@ -299,7 +299,7 @@ U_BOOT_CMD(
 );
 
 
-int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_vcc5v (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int vcc5v;
 
@@ -327,7 +327,7 @@ U_BOOT_CMD(
 );
 
 
-int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_contact_temp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int contact_temp;
 
@@ -352,7 +352,7 @@ U_BOOT_CMD(
 );
 
 
-int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_burn_in_status (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc > 1) {
 		cmd_usage(cmdtp);
@@ -842,7 +842,7 @@ static int dummy(void)
 	return (0);
 }
 
-int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_temp_log (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int contact_temp;
 	int delay = 0;
diff --git a/board/trab/trab.c b/board/trab/trab.c
index 71fd22c158..12fe120eac 100644
--- a/board/trab/trab.c
+++ b/board/trab/trab.c
@@ -305,7 +305,7 @@ static char *key_match (ulong kbd_data)
 #endif							/* CONFIG_PREBOOT */
 
 /* Read Keyboard status */
-int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_kbd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong kbd_data = KBD_DATA;
 	char keybd_env[KEYBD_KEY_NUM + 1];
diff --git a/board/trab/trab_fkt.c b/board/trab/trab_fkt.c
index 2df9a04407..268162e53a 100644
--- a/board/trab/trab_fkt.c
+++ b/board/trab/trab_fkt.c
@@ -115,21 +115,21 @@ int do_rotary_switch (void);
 int do_pressure (void);
 int do_v_bat (void);
 int do_vfd_id (void);
-int do_buzzer (char **);
-int do_led (char **);
-int do_full_bridge (char **);
-int do_dac (char **);
+int do_buzzer (char * const *);
+int do_led (char * const *);
+int do_full_bridge (char * const *);
+int do_dac (char * const *);
 int do_motor_contact (void);
-int do_motor (char **);
-int do_pwm (char **);
-int do_thermo (char **);
-int do_touch (char **);
-int do_rs485 (char **);
-int do_serial_number (char **);
+int do_motor (char * const *);
+int do_pwm (char * const *);
+int do_thermo (char * const *);
+int do_touch (char * const *);
+int do_rs485 (char * const *);
+int do_serial_number (char * const *);
 int do_crc16 (void);
 int do_power_switch (void);
-int do_gain (char **);
-int do_eeprom (char **);
+int do_gain (char * const *);
+int do_eeprom (char * const *);
 
 /* helper functions */
 static void adc_init (void);
@@ -150,8 +150,8 @@ static unsigned short updcrc(unsigned short icrc, unsigned char *icp,
 			     unsigned int icnt);
 
 #if defined(CONFIG_CMD_I2C)
-static int trab_eeprom_read (char **argv);
-static int trab_eeprom_write (char **argv);
+static int trab_eeprom_read (char * const *argv);
+static int trab_eeprom_write (char * const *argv);
 int i2c_write_multiple (uchar chip, uint addr, int alen, uchar *buffer,
 			int len);
 int i2c_read_multiple ( uchar chip, uint addr, int alen, uchar *buffer,
@@ -163,7 +163,7 @@ int i2c_read_multiple ( uchar chip, uint addr, int alen, uchar *buffer,
  * test.
  */
 
-int trab_fkt (int argc, char *argv[])
+int trab_fkt (int argc, char * const argv[])
 {
 	int i;
 
@@ -585,7 +585,7 @@ int do_vfd_id (void)
 	return 0;
 }
 
-int do_buzzer (char **argv)
+int do_buzzer (char * const *argv)
 {
 	int counter;
 
@@ -635,7 +635,7 @@ int do_buzzer (char **argv)
 }
 
 
-int do_led (char **argv)
+int do_led (char * const *argv)
 {
 	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
 
@@ -690,7 +690,7 @@ int do_led (char **argv)
 }
 
 
-int do_full_bridge (char **argv)
+int do_full_bridge (char * const *argv)
 {
 	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
 
@@ -724,7 +724,7 @@ static inline unsigned long tsc2000_to_uv (u16 val)
 }
 
 
-int do_dac (char **argv)
+int do_dac (char * const *argv)
 {
 	int brightness;
 
@@ -799,7 +799,7 @@ int do_motor_contact (void)
 	return 0;
 }
 
-int do_motor (char **argv)
+int do_motor (char * const *argv)
 {
 	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
 
@@ -824,7 +824,7 @@ static void print_identifier (void)
 	printf ("## FKT: ");
 }
 
-int do_pwm (char **argv)
+int do_pwm (char * const *argv)
 {
 	int counter;
 	struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
@@ -869,7 +869,7 @@ int do_pwm (char **argv)
 }
 
 
-int do_thermo (char **argv)
+int do_thermo (char * const *argv)
 {
 	int     channel, res;
 
@@ -892,7 +892,7 @@ int do_thermo (char **argv)
 }
 
 
-int do_touch (char **argv)
+int do_touch (char * const *argv)
 {
 	int     x, y;
 
@@ -1045,7 +1045,7 @@ static void touch_read_x_y (int *px, int *py)
 }
 
 
-int do_rs485 (char **argv)
+int do_rs485 (char * const *argv)
 {
 	int timeout;
 	char data[RS485_MAX_RECEIVE_BUF_LEN];
@@ -1110,7 +1110,7 @@ static int rs485_receive_chars (char *data, int timeout)
 }
 
 
-int do_serial_number (char **argv)
+int do_serial_number (char * const *argv)
 {
 #if defined(CONFIG_CMD_I2C)
 	unsigned int serial_number;
@@ -1249,7 +1249,7 @@ static unsigned short updcrc(unsigned short icrc, unsigned char *icp,
 }
 
 
-int do_gain (char **argv)
+int do_gain (char * const *argv)
 {
 	int range;
 
@@ -1265,7 +1265,7 @@ int do_gain (char **argv)
 }
 
 
-int do_eeprom (char **argv)
+int do_eeprom (char * const *argv)
 {
 #if defined(CONFIG_CMD_I2C)
 	if (strcmp (argv[2], "read") == 0) {
@@ -1286,7 +1286,7 @@ int do_eeprom (char **argv)
 }
 
 #if defined(CONFIG_CMD_I2C)
-static int trab_eeprom_read (char **argv)
+static int trab_eeprom_read (char * const *argv)
 {
 	int i;
 	int len;
@@ -1331,7 +1331,7 @@ static int trab_eeprom_read (char **argv)
 	return (0);
 }
 
-static int trab_eeprom_write (char **argv)
+static int trab_eeprom_write (char * const *argv)
 {
 	int i;
 	int len;
diff --git a/board/trizepsiv/eeprom.c b/board/trizepsiv/eeprom.c
index b6b16bf680..fede2e0774 100644
--- a/board/trizepsiv/eeprom.c
+++ b/board/trizepsiv/eeprom.c
@@ -25,7 +25,7 @@
 #include <command.h>
 #include <dm9000.h>
 
-static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
+static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
 	unsigned int i;
 	u8 data[2];
 
@@ -39,7 +39,7 @@ static int do_read_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *a
 	return (0);
 }
 
-static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
+static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
 	int offset,value;
 
 	if (argc < 4) {
@@ -58,7 +58,7 @@ static int do_write_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *
 	return (0);
 }
 
-int do_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) {
+int do_dm9000_eeprom ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
 		return 1;
diff --git a/board/voiceblue/eeprom.c b/board/voiceblue/eeprom.c
index f7e0ba56ab..aa6baca645 100644
--- a/board/voiceblue/eeprom.c
+++ b/board/voiceblue/eeprom.c
@@ -149,7 +149,7 @@ static int parse_element(char *s, unsigned char *buf, int len)
 	return cnt;
 }
 
-int eeprom(int argc, char *argv[])
+int eeprom(int argc, char * const argv[])
 {
 	int i, len, ret;
 	unsigned char buf[58], *p;
diff --git a/board/w7o/cmd_vpd.c b/board/w7o/cmd_vpd.c
index 013fc791f2..44d40eed28 100644
--- a/board/w7o/cmd_vpd.c
+++ b/board/w7o/cmd_vpd.c
@@ -32,7 +32,7 @@
  * Interpreter command to retrieve board specific Vital Product Data, "VPD"
  * ======================================================================
  */
-int do_vpd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_vpd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	VPD vpd;			/* Board specific data struct */
 	uchar dev_addr = CONFIG_SYS_DEF_EEPROM_ADDR;
diff --git a/board/zeus/update.c b/board/zeus/update.c
index c8487e58f8..61196276d5 100644
--- a/board/zeus/update.c
+++ b/board/zeus/update.c
@@ -91,7 +91,7 @@ static int update_boot_eeprom(void)
 	return 0;
 }
 
-int do_update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char* argv[])
+int do_update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
 {
 	return update_boot_eeprom();
 }
diff --git a/board/zeus/zeus.c b/board/zeus/zeus.c
index 01273a1f7d..e2951512f8 100644
--- a/board/zeus/zeus.c
+++ b/board/zeus/zeus.c
@@ -44,7 +44,7 @@ extern uchar default_environment[];
 
 ulong flash_get_size(ulong base, int banknum);
 void env_crc_update(void);
-int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 static u32 start_time;
 
@@ -278,7 +278,7 @@ static int restore_default(void)
 	return 0;
 }
 
-int do_set_default(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_set_default(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *buf;
 	char *buf_save;
@@ -336,7 +336,7 @@ static inline int sw_reset_pressed(void)
 	return !(in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_SW_RESET));
 }
 
-int do_chkreset(cmd_tbl_t* cmdtp, int flag, int argc, char* argv[])
+int do_chkreset(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
 {
 	int delta;
 	int count = 0;
diff --git a/common/cmd_ambapp.c b/common/cmd_ambapp.c
index bb20ab5149..283c433376 100644
--- a/common/cmd_ambapp.c
+++ b/common/cmd_ambapp.c
@@ -223,7 +223,7 @@ void ambapp_print_ahb(ahbctrl_pp_dev * ahb, int index)
 	printf("   irq: %-2d (ver: %d)\n", irq, ver);
 }
 
-int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_ambapp_print(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 
 	/* Print AHB Masters */
diff --git a/common/cmd_bdinfo.c b/common/cmd_bdinfo.c
index 710abdf877..fbe73f1b3d 100644
--- a/common/cmd_bdinfo.c
+++ b/common/cmd_bdinfo.c
@@ -42,7 +42,7 @@ static void print_lnum(const char *, u64);
 #if defined(CONFIG_PPC)
 static void print_str(const char *, const char *);
 
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 	char buf[32];
@@ -122,7 +122,7 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 #elif defined(CONFIG_NIOS2)
 
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 
@@ -149,7 +149,7 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 #elif defined(CONFIG_MICROBLAZE)
 
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 	print_num ("mem start      ",	(ulong)bd->bi_memstart);
@@ -171,7 +171,7 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 #elif defined(CONFIG_SPARC)
 
-int do_bdinfo(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bdinfo(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 
@@ -206,7 +206,7 @@ int do_bdinfo(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 
 static void print_str(const char *, const char *);
 
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 	char buf[32];
@@ -256,7 +256,7 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 static void print_str(const char *, const char *);
 
-int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 	char buf[32];
@@ -284,7 +284,7 @@ int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 #elif defined(CONFIG_MIPS)
 
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	bd_t *bd = gd->bd;
 
@@ -324,7 +324,7 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 #elif defined(CONFIG_ARM)
 
-int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	bd_t *bd = gd->bd;
diff --git a/common/cmd_bedbug.c b/common/cmd_bedbug.c
index 8be1c25fd7..d01ee19ee5 100644
--- a/common/cmd_bedbug.c
+++ b/common/cmd_bedbug.c
@@ -73,7 +73,7 @@ void bedbug_init (void)
  * Entry point from the interpreter to the disassembler.  Repeated calls
  * will resume from the last disassembled address.
  * ====================================================================== */
-int do_bedbug_dis (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bedbug_dis (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;		/* Address to start disassembly from    */
 	ulong len;		/* # of instructions to disassemble     */
@@ -115,7 +115,7 @@ U_BOOT_CMD (ds, 3, 1, do_bedbug_dis,
  * instructions in consecutive memory locations until a '.' (period) is
  * entered on a line by itself.
  * ====================================================================== */
-int do_bedbug_asm (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bedbug_asm (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	long mem_addr;		/* Address to assemble into     */
 	unsigned long instr;	/* Machine code for text        */
@@ -167,7 +167,7 @@ U_BOOT_CMD (as, 2, 0, do_bedbug_asm,
  * CPU-specific break point set routine.
  * ====================================================================== */
 
-int do_bedbug_break (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bedbug_break (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	/* -------------------------------------------------- */
 	if (bug_ctx.do_break)
@@ -263,7 +263,7 @@ void bedbug_main_loop (unsigned long addr, struct pt_regs *regs)
  * stopped flag in the context so that the breakpoint routine will
  * return.
  * ====================================================================== */
-int do_bedbug_continue (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bedbug_continue (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	/* -------------------------------------------------- */
 
@@ -286,7 +286,7 @@ U_BOOT_CMD (continue, 1, 0, do_bedbug_continue,
  * the address passes control to the CPU-specific set breakpoint routine
  * for the current breakpoint number.
  * ====================================================================== */
-int do_bedbug_step (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bedbug_step (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long addr;	/* Address to stop at */
 
@@ -317,7 +317,7 @@ U_BOOT_CMD (step, 1, 1, do_bedbug_step,
  * the address passes control to the CPU-specific set breakpoint routine
  * for the current breakpoint number.
  * ====================================================================== */
-int do_bedbug_next (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bedbug_next (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long addr;	/* Address to stop at */
 
@@ -346,7 +346,7 @@ U_BOOT_CMD (next, 1, 1, do_bedbug_next,
  * Interpreter command to print the current stack.  This assumes an EABI
  * architecture, so it starts with GPR R1 and works back up the stack.
  * ====================================================================== */
-int do_bedbug_stack (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bedbug_stack (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long sp;	/* Stack pointer                */
 	unsigned long func;	/* LR from stack                */
@@ -391,7 +391,7 @@ U_BOOT_CMD (where, 1, 1, do_bedbug_stack,
  * Interpreter command to dump the registers.  Calls the CPU-specific
  * show registers routine.
  * ====================================================================== */
-int do_bedbug_rdump (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_bedbug_rdump (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	/* -------------------------------------------------- */
 
diff --git a/common/cmd_bmp.c b/common/cmd_bmp.c
index 583b0090cb..5ec798c549 100644
--- a/common/cmd_bmp.c
+++ b/common/cmd_bmp.c
@@ -90,7 +90,7 @@ bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp)
 }
 #endif
 
-static int do_bmp_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_bmp_info(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 
@@ -109,7 +109,7 @@ static int do_bmp_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return (bmp_info(addr));
 }
 
-static int do_bmp_display(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_bmp_display(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	int x = 0, y = 0;
@@ -149,7 +149,7 @@ static cmd_tbl_t cmd_bmp_sub[] = {
  * Return:      None
  *
  */
-static int do_bmp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_bmp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	cmd_tbl_t *c;
 
diff --git a/common/cmd_boot.c b/common/cmd_boot.c
index bfc1db21d2..9ccc8c798d 100644
--- a/common/cmd_boot.c
+++ b/common/cmd_boot.c
@@ -30,12 +30,12 @@
 
 /* Allow ports to override the default behavior */
 __attribute__((weak))
-unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char *argv[])
+unsigned long do_go_exec (ulong (*entry)(int, char * const []), int argc, char * const argv[])
 {
 	return entry (argc, argv);
 }
 
-int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_go (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong	addr, rc;
 	int     rcode = 0;
@@ -69,7 +69,7 @@ U_BOOT_CMD(
 	"      passing 'arg' as arguments"
 );
 
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 U_BOOT_CMD(
 	reset, 1, 0,	do_reset,
diff --git a/common/cmd_bootldr.c b/common/cmd_bootldr.c
index b2a8b0e190..c7f14d9e45 100644
--- a/common/cmd_bootldr.c
+++ b/common/cmd_bootldr.c
@@ -142,7 +142,7 @@ static void ldr_exec(void *addr)
  *   to also add booting from SPI, or TWI, but this function does
  *   not currently support that.
  */
-int do_bootldr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootldr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	void *addr;
 
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 74ff205d3e..bf77fb463d 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -78,7 +78,7 @@ static int image_info (unsigned long addr);
 #if defined(CONFIG_CMD_IMLS)
 #include <flash.h>
 extern flash_info_t flash_info[]; /* info for FLASH chips */
-static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 #endif
 
 #ifdef CONFIG_SILENT_CONSOLE
@@ -90,9 +90,9 @@ static image_header_t *image_get_kernel (ulong img_addr, int verify);
 static int fit_check_kernel (const void *fit, int os_noffset, int verify);
 #endif
 
-static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag,int argc, char *argv[],
+static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag,int argc, char * const argv[],
 		bootm_headers_t *images, ulong *os_data, ulong *os_len);
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /*
  *  Continue booting an OS image; caller already has:
@@ -102,7 +102,7 @@ extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
  *  - loaded (first part of) image to header load address,
  *  - disabled interrupts.
  */
-typedef int boot_os_fn (int flag, int argc, char *argv[],
+typedef int boot_os_fn (int flag, int argc, char * const argv[],
 			bootm_headers_t *images); /* pointers to os/initrd/fdt */
 
 #ifdef CONFIG_BOOTM_LINUX
@@ -121,8 +121,8 @@ static boot_os_fn do_bootm_rtems;
 #if defined(CONFIG_CMD_ELF)
 static boot_os_fn do_bootm_vxworks;
 static boot_os_fn do_bootm_qnxelf;
-int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
-int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 #endif
 #if defined(CONFIG_INTEGRITY)
 static boot_os_fn do_bootm_integrity;
@@ -206,7 +206,7 @@ static void bootm_start_lmb(void)
 #endif
 }
 
-static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	void		*os_hdr;
 	int		ret;
@@ -438,10 +438,10 @@ static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
 	return 0;
 }
 
-static int bootm_start_standalone(ulong iflag, int argc, char *argv[])
+static int bootm_start_standalone(ulong iflag, int argc, char * const argv[])
 {
 	char  *s;
-	int   (*appl)(int, char *[]);
+	int   (*appl)(int, char * const []);
 
 	/* Don't start if "autostart" is set to "no" */
 	if (((s = getenv("autostart")) != NULL) && (strcmp(s, "no") == 0)) {
@@ -450,7 +450,7 @@ static int bootm_start_standalone(ulong iflag, int argc, char *argv[])
 		setenv("filesize", buf);
 		return 0;
 	}
-	appl = (int (*)(int, char *[]))ntohl(images.ep);
+	appl = (int (*)(int, char * const []))ntohl(images.ep);
 	(*appl)(argc-1, &argv[1]);
 
 	return 0;
@@ -473,7 +473,7 @@ static cmd_tbl_t cmd_bootm_sub[] = {
 	U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
 };
 
-int do_bootm_subcommand (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootm_subcommand (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int ret = 0;
 	int state;
@@ -576,7 +576,7 @@ int do_bootm_subcommand (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 /* bootm - boot application image from image in memory */
 /*******************************************************************/
 
-int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong		iflag;
 	ulong		load_end = 0;
@@ -811,7 +811,7 @@ static int fit_check_kernel (const void *fit, int os_noffset, int verify)
  *     pointer to image header if valid image was found, plus kernel start
  *     address and length, otherwise NULL
  */
-static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
+static void *boot_get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 		bootm_headers_t *images, ulong *os_data, ulong *os_len)
 {
 	image_header_t	*hdr;
@@ -1012,7 +1012,7 @@ U_BOOT_CMD(
 /* bootd - boot default image */
 /*******************************************************************/
 #if defined(CONFIG_CMD_BOOTD)
-int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode = 0;
 
@@ -1047,7 +1047,7 @@ U_BOOT_CMD(
 /* iminfo - print header info for a requested image */
 /*******************************************************************/
 #if defined(CONFIG_CMD_IMI)
-int do_iminfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_iminfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int	arg;
 	ulong	addr;
@@ -1134,7 +1134,7 @@ U_BOOT_CMD(
 /* imls - list all images found in flash */
 /*******************************************************************/
 #if defined(CONFIG_CMD_IMLS)
-int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	flash_info_t *info;
 	int i, j;
@@ -1237,7 +1237,7 @@ static void fixup_silent_linux ()
 /*******************************************************************/
 
 #ifdef CONFIG_BOOTM_NETBSD
-static int do_bootm_netbsd (int flag, int argc, char *argv[],
+static int do_bootm_netbsd (int flag, int argc, char * const argv[],
 			    bootm_headers_t *images)
 {
 	void (*loader)(bd_t *, image_header_t *, char *, char *);
@@ -1325,7 +1325,7 @@ static int do_bootm_netbsd (int flag, int argc, char *argv[],
 #endif /* CONFIG_BOOTM_NETBSD*/
 
 #ifdef CONFIG_LYNXKDI
-static int do_bootm_lynxkdi (int flag, int argc, char *argv[],
+static int do_bootm_lynxkdi (int flag, int argc, char * const argv[],
 			     bootm_headers_t *images)
 {
 	image_header_t *hdr = &images->legacy_hdr_os_copy;
@@ -1347,7 +1347,7 @@ static int do_bootm_lynxkdi (int flag, int argc, char *argv[],
 #endif /* CONFIG_LYNXKDI */
 
 #ifdef CONFIG_BOOTM_RTEMS
-static int do_bootm_rtems (int flag, int argc, char *argv[],
+static int do_bootm_rtems (int flag, int argc, char * const argv[],
 			   bootm_headers_t *images)
 {
 	void (*entry_point)(bd_t *);
@@ -1380,7 +1380,7 @@ static int do_bootm_rtems (int flag, int argc, char *argv[],
 #endif /* CONFIG_BOOTM_RTEMS */
 
 #if defined(CONFIG_CMD_ELF)
-static int do_bootm_vxworks (int flag, int argc, char *argv[],
+static int do_bootm_vxworks (int flag, int argc, char * const argv[],
 			     bootm_headers_t *images)
 {
 	char str[80];
@@ -1402,7 +1402,7 @@ static int do_bootm_vxworks (int flag, int argc, char *argv[],
 	return 1;
 }
 
-static int do_bootm_qnxelf(int flag, int argc, char *argv[],
+static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
 			    bootm_headers_t *images)
 {
 	char *local_args[2];
@@ -1428,7 +1428,7 @@ static int do_bootm_qnxelf(int flag, int argc, char *argv[],
 #endif
 
 #ifdef CONFIG_INTEGRITY
-static int do_bootm_integrity (int flag, int argc, char *argv[],
+static int do_bootm_integrity (int flag, int argc, char * const argv[],
 			   bootm_headers_t *images)
 {
 	void (*entry_point)(void);
diff --git a/common/cmd_cache.c b/common/cmd_cache.c
index 1202258419..be87b5c2d7 100644
--- a/common/cmd_cache.c
+++ b/common/cmd_cache.c
@@ -29,7 +29,7 @@
 
 static int on_off (const char *);
 
-int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	switch (argc) {
 	case 2:			/* on / off	*/
@@ -55,7 +55,7 @@ int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	switch (argc) {
 	case 2:			/* on / off	*/
diff --git a/common/cmd_console.c b/common/cmd_console.c
index 178fbfeaa8..d8cad6b917 100644
--- a/common/cmd_console.c
+++ b/common/cmd_console.c
@@ -29,7 +29,7 @@
 #include <stdio_dev.h>
 
 extern void _do_coninfo (void);
-int do_coninfo (cmd_tbl_t * cmd, int flag, int argc, char *argv[])
+int do_coninfo (cmd_tbl_t * cmd, int flag, int argc, char * const argv[])
 {
 	int l;
 	struct list_head *list = stdio_get_list();
diff --git a/common/cmd_cplbinfo.c b/common/cmd_cplbinfo.c
index 1a044d2901..fc6abffe6e 100644
--- a/common/cmd_cplbinfo.c
+++ b/common/cmd_cplbinfo.c
@@ -42,7 +42,7 @@ static void show_cplb_table(uint32_t *addr, uint32_t *data)
 /*
  * display current instruction and data cplb tables
  */
-int do_cplbinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_cplbinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("%s CPLB table [%08x]:\n", "Instruction", *(uint32_t *)DMEM_CONTROL);
 	show_cplb_table((uint32_t *)ICPLB_ADDR0, (uint32_t *)ICPLB_DATA0);
diff --git a/common/cmd_cramfs.c b/common/cmd_cramfs.c
index 55e2d36b51..ab10450a4c 100644
--- a/common/cmd_cramfs.c
+++ b/common/cmd_cramfs.c
@@ -98,7 +98,7 @@ extern int cramfs_info (struct part_info *info);
  * @param argv arguments list
  * @return 0 on success, 1 otherwise
  */
-int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename;
 	int size;
@@ -163,7 +163,7 @@ int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * @param argv arguments list
  * @return 0 on success, 1 otherwise
  */
-int do_cramfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_cramfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = "/";
 	int ret;
diff --git a/common/cmd_dataflash_mmc_mux.c b/common/cmd_dataflash_mmc_mux.c
index 97e303e943..de4e676157 100644
--- a/common/cmd_dataflash_mmc_mux.c
+++ b/common/cmd_dataflash_mmc_mux.c
@@ -26,7 +26,7 @@
 
 static int mmc_nspi (const char *);
 
-int do_dataflash_mmc_mux (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dataflash_mmc_mux (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	switch (argc) {
 	case 2:			/* on / off	*/
diff --git a/common/cmd_date.c b/common/cmd_date.c
index 3141a3968a..50b4240267 100644
--- a/common/cmd_date.c
+++ b/common/cmd_date.c
@@ -43,7 +43,7 @@ const char *weekdays[] = {
 
 int mk_date (char *, struct rtc_time *);
 
-int do_date (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_date (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct rtc_time tm;
 	int rcode = 0;
diff --git a/common/cmd_dcr.c b/common/cmd_dcr.c
index 4f23b8d591..45de8cd65a 100644
--- a/common/cmd_dcr.c
+++ b/common/cmd_dcr.c
@@ -36,7 +36,7 @@ unsigned long set_dcr (unsigned short, unsigned long);
  * Interpreter command to retrieve an AMCC PPC 4xx Device Control Register
  * =======================================================================
  */
-int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[] )
 {
 	unsigned short dcrn;	/* Device Control Register Num */
 	unsigned long value;	/* DCR's value */
@@ -63,7 +63,7 @@ int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
  * Interpreter command to set an AMCC PPC 4xx Device Control Register
  * ======================================================================
 */
-int do_setdcr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_setdcr (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short dcrn;	/* Device Control Register Num */
 	unsigned long value;
@@ -110,7 +110,7 @@ int do_setdcr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
  * Device Control Register inderect addressing.
  * =======================================================================
  */
-int do_getidcr (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_getidcr (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short adr_dcrn;	/* Device Control Register Num for Address */
 	unsigned short dat_dcrn;	/* Device Control Register Num for Data */
@@ -166,7 +166,7 @@ int do_getidcr (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * Device Control Register inderect addressing.
  * =======================================================================
  */
-int do_setidcr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_setidcr (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned short adr_dcrn;	/* Device Control Register Num for Address */
 	unsigned short dat_dcrn;	/* Device Control Register Num for Data */
diff --git a/common/cmd_df.c b/common/cmd_df.c
index 7f957fed47..6a086663bf 100644
--- a/common/cmd_df.c
+++ b/common/cmd_df.c
@@ -6,7 +6,7 @@
 #include <common.h>
 #include <df.h>
 
-static int do_df(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_df(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	const char *cmd;
 
diff --git a/common/cmd_diag.c b/common/cmd_diag.c
index 0436c492f4..317ea6605f 100644
--- a/common/cmd_diag.c
+++ b/common/cmd_diag.c
@@ -28,7 +28,7 @@
 #include <command.h>
 #include <post.h>
 
-int do_diag (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_diag (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int i;
 
diff --git a/common/cmd_display.c b/common/cmd_display.c
index 34223952ee..6c11aa6e3e 100644
--- a/common/cmd_display.c
+++ b/common/cmd_display.c
@@ -30,7 +30,7 @@
 #define CWORD_CLEAR	0x80
 #define CLEAR_DELAY	(110 * 2)
 
-int do_display (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_display (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int pos;
diff --git a/common/cmd_dtt.c b/common/cmd_dtt.c
index 3cfd36ef73..3388e43ca0 100644
--- a/common/cmd_dtt.c
+++ b/common/cmd_dtt.c
@@ -28,7 +28,7 @@
 #include <dtt.h>
 #include <i2c.h>
 
-int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	unsigned char sensors[] = CONFIG_DTT_SENSORS;
diff --git a/common/cmd_echo.c b/common/cmd_echo.c
index 3ec4d48563..43a6da5722 100644
--- a/common/cmd_echo.c
+++ b/common/cmd_echo.c
@@ -24,7 +24,7 @@
 #include <common.h>
 #include <command.h>
 
-int do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_echo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int putnl = 1;
diff --git a/common/cmd_eeprom.c b/common/cmd_eeprom.c
index 519b510c77..129162c015 100644
--- a/common/cmd_eeprom.c
+++ b/common/cmd_eeprom.c
@@ -60,7 +60,7 @@ extern int eeprom_write_enable (unsigned dev_addr, int state);
 /* ------------------------------------------------------------------------- */
 
 #if defined(CONFIG_CMD_EEPROM)
-int do_eeprom ( cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_eeprom ( cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	const char *const fmt =
 		"\nEEPROM @0x%lX %s: addr %08lx  off %04lx  count %ld ... ";
diff --git a/common/cmd_elf.c b/common/cmd_elf.c
index 63f6fe7a1f..104d6e68b3 100644
--- a/common/cmd_elf.c
+++ b/common/cmd_elf.c
@@ -29,7 +29,8 @@ unsigned long load_elf_image (unsigned long addr);
 
 /* Allow ports to override the default behavior */
 __attribute__((weak))
-unsigned long do_bootelf_exec (ulong (*entry)(int, char *[]), int argc, char *argv[])
+unsigned long do_bootelf_exec (ulong (*entry)(int, char * const[]),
+			       int argc, char * const argv[])
 {
 	unsigned long ret;
 
@@ -56,7 +57,7 @@ unsigned long do_bootelf_exec (ulong (*entry)(int, char *[]), int argc, char *ar
 /* ======================================================================
  * Interpreter command to boot an arbitrary ELF image from memory.
  * ====================================================================== */
-int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long addr;		/* Address of the ELF image     */
 	unsigned long rc;		/* Return value from user code  */
@@ -93,7 +94,7 @@ int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * be either an ELF image or a raw binary.  Will attempt to setup the
  * bootline and other parameters correctly.
  * ====================================================================== */
-int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long addr;		/* Address of image            */
 	unsigned long bootaddr;		/* Address to put the bootline */
diff --git a/common/cmd_exit.c b/common/cmd_exit.c
index ed876d8c9a..f3fc8f5e79 100644
--- a/common/cmd_exit.c
+++ b/common/cmd_exit.c
@@ -24,7 +24,7 @@
 #include <common.h>
 #include <command.h>
 
-int do_exit(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_exit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int r;
 
diff --git a/common/cmd_ext2.c b/common/cmd_ext2.c
index b7e4048d64..49021cdb86 100644
--- a/common/cmd_ext2.c
+++ b/common/cmd_ext2.c
@@ -56,7 +56,7 @@
 #define PRINTF(fmt,args...)
 #endif
 
-int do_ext2ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ext2ls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = "/";
 	int dev=0;
@@ -123,7 +123,7 @@ U_BOOT_CMD(
 /******************************************************************************
  * Ext2fs boot command intepreter. Derived from diskboot
  */
-int do_ext2load (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ext2load (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = NULL;
 	char *ep;
diff --git a/common/cmd_fat.c b/common/cmd_fat.c
index f3089a296e..ede730804e 100644
--- a/common/cmd_fat.c
+++ b/common/cmd_fat.c
@@ -33,7 +33,7 @@
 #include <fat.h>
 
 
-int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	long size;
 	unsigned long offset;
@@ -94,7 +94,7 @@ U_BOOT_CMD(
 	"      to address 'addr' from dos filesystem"
 );
 
-int do_fat_ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fat_ls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = "/";
 	int ret;
@@ -141,7 +141,7 @@ U_BOOT_CMD(
 	"    - list files from 'dev' on 'interface' in a 'directory'"
 );
 
-int do_fat_fsinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fat_fsinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int dev=0;
 	int part=1;
@@ -227,7 +227,7 @@ int find_fat_partition (void)
 }
 
 int
-do_fat_dump (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+do_fat_dump (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char * const argv[])
 {
 	__u8 block[1024];
 	int ret;
diff --git a/common/cmd_fdc.c b/common/cmd_fdc.c
index 4c16d19898..486d5d4844 100644
--- a/common/cmd_fdc.c
+++ b/common/cmd_fdc.c
@@ -713,7 +713,7 @@ int fdc_fdos_read (void *buffer, int len)
 /****************************************************************************
  * main routine do_fdcboot
  */
-int do_fdcboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fdcboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	FD_GEO_STRUCT *pFG = (FD_GEO_STRUCT *)floppy_type;
 	FDC_COMMAND_STRUCT *pCMD = &cmd;
diff --git a/common/cmd_fdos.c b/common/cmd_fdos.c
index 3cc658624d..00f7e88e12 100644
--- a/common/cmd_fdos.c
+++ b/common/cmd_fdos.c
@@ -35,7 +35,7 @@
  * do_fdosboot --
  *-----------------------------------------------------------------------------
  */
-int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *name;
     char *ep;
@@ -115,7 +115,7 @@ int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * do_fdosls --
  *-----------------------------------------------------------------------------
  */
-int do_fdosls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_fdosls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *path = "";
     int drive = CONFIG_SYS_FDC_DRIVE_NUMBER;
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index 5df79ae3e1..cd4c6de6da 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -42,7 +42,7 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 static int fdt_valid(void);
-static int fdt_parse_prop(char **newval, int count, char *data, int *len);
+static int fdt_parse_prop(char *const*newval, int count, char *data, int *len);
 static int fdt_print(const char *pathp, char *prop, int depth);
 
 /*
@@ -63,7 +63,7 @@ void set_working_fdt_addr(void *addr)
 /*
  * Flattened Device Tree command, see the help for parameter definitions.
  */
-int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -515,7 +515,7 @@ static int fdt_valid(void)
  * data: A bytestream to be placed in the property
  * len: The length of the resulting bytestream
  */
-static int fdt_parse_prop(char **newval, int count, char *data, int *len)
+static int fdt_parse_prop(char * const *newval, int count, char *data, int *len)
 {
 	char *cp;		/* temporary char pointer */
 	char *newp;		/* temporary newval char pointer */
diff --git a/common/cmd_flash.c b/common/cmd_flash.c
index 6361c4ef9b..5d8fb7a836 100644
--- a/common/cmd_flash.c
+++ b/common/cmd_flash.c
@@ -287,7 +287,7 @@ flash_fill_sect_ranges (ulong addr_first, ulong addr_last,
 }
 #endif /* CONFIG_SYS_NO_FLASH */
 
-int do_flinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_flinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #ifndef CONFIG_SYS_NO_FLASH
 	ulong bank;
@@ -319,7 +319,7 @@ int do_flinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_flerase (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_flerase (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #ifndef CONFIG_SYS_NO_FLASH
 	flash_info_t *info;
@@ -461,7 +461,7 @@ int flash_sect_erase (ulong addr_first, ulong addr_last)
 }
 #endif /* CONFIG_SYS_NO_FLASH */
 
-int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #ifndef CONFIG_SYS_NO_FLASH
 	flash_info_t *info;
diff --git a/common/cmd_fpga.c b/common/cmd_fpga.c
index 2e017b84d8..ddc7a05a5b 100644
--- a/common/cmd_fpga.c
+++ b/common/cmd_fpga.c
@@ -156,7 +156,7 @@ int fpga_loadbitstream(unsigned long dev, char* fpgadata, size_t size)
  * If there is no data addr field, the fpgadata environment variable is used.
  * The info command requires no data address field.
  */
-int do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_fpga (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int op, dev = FPGA_INVALID_DEVICE;
 	size_t data_size = 0;
diff --git a/common/cmd_help.c b/common/cmd_help.c
index e860dfb57c..8c8178e41d 100644
--- a/common/cmd_help.c
+++ b/common/cmd_help.c
@@ -24,7 +24,7 @@
 #include <common.h>
 #include <command.h>
 
-int do_help(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_help(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	return _do_help(&__u_boot_cmd_start,
 			&__u_boot_cmd_end - &__u_boot_cmd_start,
diff --git a/common/cmd_i2c.c b/common/cmd_i2c.c
index 8b9c2c9490..fb9d3b038f 100644
--- a/common/cmd_i2c.c
+++ b/common/cmd_i2c.c
@@ -178,7 +178,7 @@ static uint get_alen(char *arg)
  *	i2c read {i2c_chip} {devaddr}{.0, .1, .2} {len} {memaddr}
  */
 
-static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u_char	chip;
 	uint	devaddr, alen, length;
@@ -226,7 +226,7 @@ static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * Syntax:
  *	i2c md {i2c_chip} {addr}{.0, .1, .2} {len}
  */
-static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u_char	chip;
 	uint	addr, alen, length;
@@ -324,7 +324,7 @@ static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * Syntax:
  *	i2c mw {i2c_chip} {addr}{.0, .1, .2} {data} [{count}]
  */
-static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar	chip;
 	ulong	addr;
@@ -388,7 +388,7 @@ static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * Syntax:
  *	i2c crc32 {i2c_chip} {addr}{.0, .1, .2} {count}
  */
-static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uchar	chip;
 	ulong	addr;
@@ -452,7 +452,7 @@ static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  */
 
 static int
-mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[])
+mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
 {
 	uchar	chip;
 	ulong	addr;
@@ -575,7 +575,7 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[])
  * Syntax:
  *	i2c probe {addr}{.0, .1, .2}
  */
-static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int j;
 #if defined(CONFIG_SYS_I2C_NOPROBES)
@@ -619,7 +619,7 @@ static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  *	{length} - Number of bytes to read
  *	{delay}  - A DECIMAL number and defaults to 1000 uSec
  */
-static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u_char	chip;
 	ulong	alen;
@@ -731,7 +731,7 @@ static void decode_bits (u_char const b, char const *str[], int const do_once)
  * Syntax:
  *	i2c sdram {i2c_chip}
  */
-static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	enum { unknown, EDO, SDRAM, DDR2 } type;
 
@@ -1208,7 +1208,7 @@ static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 #endif
 
 #if defined(CONFIG_I2C_MUX)
-static int do_i2c_add_bus(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_add_bus(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int ret=0;
 
@@ -1239,7 +1239,7 @@ static int do_i2c_add_bus(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 #endif  /* CONFIG_I2C_MUX */
 
 #if defined(CONFIG_I2C_MULTI_BUS)
-static int do_i2c_bus_num(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_bus_num(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int bus_idx, ret=0;
 
@@ -1257,7 +1257,7 @@ static int do_i2c_bus_num(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 }
 #endif  /* CONFIG_I2C_MULTI_BUS */
 
-static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int speed, ret=0;
 
@@ -1274,17 +1274,17 @@ static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return ret;
 }
 
-static int do_i2c_mm(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_mm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	return mod_i2c_mem (cmdtp, 1, flag, argc, argv);
 }
 
-static int do_i2c_nm(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_nm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	return mod_i2c_mem (cmdtp, 0, flag, argc, argv);
 }
 
-static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 	return 0;
@@ -1312,7 +1312,7 @@ static cmd_tbl_t cmd_i2c_sub[] = {
 	U_BOOT_CMD_MKENT(speed, 1, 1, do_i2c_bus_speed, "", ""),
 };
 
-static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	cmd_tbl_t *c;
 
diff --git a/common/cmd_ide.c b/common/cmd_ide.c
index 2e9f834978..d486697bb4 100644
--- a/common/cmd_ide.c
+++ b/common/cmd_ide.c
@@ -172,7 +172,7 @@ static void set_pcmcia_timing (int pmode);
 
 /* ------------------------------------------------------------------------- */
 
-int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     int rcode = 0;
 
@@ -346,7 +346,7 @@ int do_ide (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     }
 }
 
-int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_diskboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *boot_device = NULL;
 	char *ep;
diff --git a/common/cmd_immap.c b/common/cmd_immap.c
index 37e60582f6..1f59c1e1d1 100644
--- a/common/cmd_immap.c
+++ b/common/cmd_immap.c
@@ -43,14 +43,14 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 static void
-unimplemented ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+unimplemented ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf ("Sorry, but the '%s' command has not been implemented\n",
 		cmdtp->name);
 }
 
 int
-do_siuinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_siuinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 
@@ -81,7 +81,7 @@ do_siuinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 int
-do_memcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_memcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 
@@ -133,7 +133,7 @@ do_memcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 int
-do_sitinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_sitinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
@@ -141,7 +141,7 @@ do_sitinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 #ifdef CONFIG_8260
 int
-do_icinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_icinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
@@ -149,7 +149,7 @@ do_icinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #endif
 
 int
-do_carinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_carinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 
@@ -233,7 +233,7 @@ static void binary (char *label, uint value, int nbits)
 #endif
 
 int
-do_iopinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_iopinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 
@@ -316,7 +316,7 @@ do_iopinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * use *uint and set the address based on cmd + port
  */
 int
-do_iopset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_iopset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uint rcode = 0;
 	iopin_t iopin;
@@ -431,14 +431,14 @@ do_iopset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 int
-do_dmainfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_dmainfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
 }
 
 int
-do_fccinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_fccinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
@@ -498,7 +498,7 @@ static void prbrg (int n, uint val)
 }
 
 int
-do_brginfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_brginfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 
@@ -522,7 +522,7 @@ do_brginfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 int
-do_i2cinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_i2cinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
 
@@ -569,42 +569,42 @@ do_i2cinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 int
-do_sccinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_sccinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
 }
 
 int
-do_smcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_smcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
 }
 
 int
-do_spiinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_spiinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
 }
 
 int
-do_muxinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_muxinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
 }
 
 int
-do_siinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_siinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
 }
 
 int
-do_mccinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_mccinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unimplemented (cmdtp, flag, argc, argv);
 	return 0;
diff --git a/common/cmd_irq.c b/common/cmd_irq.c
index 2c7e6bbf0c..48883289fc 100644
--- a/common/cmd_irq.c
+++ b/common/cmd_irq.c
@@ -24,7 +24,7 @@
 #include <config.h>
 #include <command.h>
 
-int do_interrupts(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_interrupts(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 
 	if (argc != 2) {
@@ -49,7 +49,7 @@ U_BOOT_CMD(
 );
 
 /* Implemented in $(CPU)/interrupts.c */
-int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_irqinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 U_BOOT_CMD(
 	irqinfo,    1,    1,     do_irqinfo,
diff --git a/common/cmd_itest.c b/common/cmd_itest.c
index 58c5e7b3b5..e88d6e097c 100644
--- a/common/cmd_itest.c
+++ b/common/cmd_itest.c
@@ -160,7 +160,7 @@ int binary_test (char *op, char *arg1, char *arg2, int w)
 }
 
 /* command line interface to the shell test */
-int do_itest ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+int do_itest ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[] )
 {
 	int	value, w;
 
diff --git a/common/cmd_jffs2.c b/common/cmd_jffs2.c
index 6799ccaa0a..0e7a6b0f3b 100644
--- a/common/cmd_jffs2.c
+++ b/common/cmd_jffs2.c
@@ -485,7 +485,7 @@ static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int pa
  * @param argv arguments list
  * @return 0 on success, 1 otherwise
  */
-int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *fsname;
 	char *filename;
@@ -549,7 +549,7 @@ int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * @param argv arguments list
  * @return 0 on success, 1 otherwise
  */
-int do_jffs2_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_jffs2_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = "/";
 	int ret;
@@ -587,7 +587,7 @@ int do_jffs2_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * @param argv arguments list
  * @return 0 on success, 1 otherwise
  */
-int do_jffs2_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_jffs2_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct part_info *part;
 	char *fsname;
diff --git a/common/cmd_license.c b/common/cmd_license.c
index 85a4871de0..90fd57e25d 100644
--- a/common/cmd_license.c
+++ b/common/cmd_license.c
@@ -30,7 +30,7 @@
 #include <malloc.h>
 #include <license.h>
 
-int do_license(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_license(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *tok, *dst = malloc(LICENSE_MAX);
 	unsigned long len = LICENSE_MAX;
diff --git a/common/cmd_load.c b/common/cmd_load.c
index d6bbb786da..52ed1fa70d 100644
--- a/common/cmd_load.c
+++ b/common/cmd_load.c
@@ -51,7 +51,7 @@ static int do_echo = 1;
 /* -------------------------------------------------------------------- */
 
 #if defined(CONFIG_CMD_LOADS)
-int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	long offset = 0;
 	ulong addr;
@@ -255,7 +255,7 @@ read_record (char *buf, ulong len)
 
 #if defined(CONFIG_CMD_SAVES)
 
-int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong offset = 0;
 	ulong size   = 0;
@@ -433,7 +433,7 @@ int  his_pad_count;  /* number of pad chars he needs */
 char his_pad_char;   /* pad chars he needs */
 char his_quote;      /* quote chars he'll use */
 
-int do_load_serial_bin (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_load_serial_bin (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong offset = 0;
 	ulong addr;
@@ -1091,7 +1091,7 @@ U_BOOT_CMD(
 /* -------------------------------------------------------------------- */
 
 #if defined(CONFIG_CMD_HWFLOW)
-int do_hwflow (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_hwflow (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	extern int hwflow_onoff(int);
 
diff --git a/common/cmd_log.c b/common/cmd_log.c
index 3653fe1a1e..49deddd7f9 100644
--- a/common/cmd_log.c
+++ b/common/cmd_log.c
@@ -193,7 +193,7 @@ void logbuff_log(char *msg)
  * Return:      None
  *
  */
-int do_log (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_log (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *s;
 	unsigned long i, start, size;
diff --git a/common/cmd_mac.c b/common/cmd_mac.c
index 20403da39d..1884c2aa8a 100644
--- a/common/cmd_mac.c
+++ b/common/cmd_mac.c
@@ -24,7 +24,7 @@
 #include <common.h>
 #include <command.h>
 
-extern int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 U_BOOT_CMD(
 	mac, 3, 1,  do_mac,
diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index 1839330760..bcea3992db 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -43,7 +43,7 @@
 #define PRINTF(fmt,args...)
 #endif
 
-static int mod_mem(cmd_tbl_t *, int, int, int, char *[]);
+static int mod_mem(cmd_tbl_t *, int, int, int, char * const []);
 
 /* Display values from last command.
  * Memory modify remembered values are different from display memory.
@@ -60,7 +60,7 @@ static	ulong	base_address = 0;
  *	md{.b, .w, .l} {addr} {len}
  */
 #define DISP_LINE_LEN	16
-int do_mem_md ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong	addr, length;
 #if defined(CONFIG_HAS_DATAFLASH)
@@ -158,16 +158,16 @@ int do_mem_md ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return (rc);
 }
 
-int do_mem_mm ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_mm ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return mod_mem (cmdtp, 1, flag, argc, argv);
 }
-int do_mem_nm ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_nm ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return mod_mem (cmdtp, 0, flag, argc, argv);
 }
 
-int do_mem_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong	addr, writeval, count;
 	int	size;
@@ -211,7 +211,7 @@ int do_mem_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 #ifdef CONFIG_MX_CYCLIC
-int do_mem_mdc ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_mdc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	ulong count;
@@ -240,7 +240,7 @@ int do_mem_mdc ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_mem_mwc ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_mwc ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	ulong count;
@@ -270,7 +270,7 @@ int do_mem_mwc ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 #endif /* CONFIG_MX_CYCLIC */
 
-int do_mem_cmp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_cmp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong	addr1, addr2, count, ngood;
 	int	size;
@@ -355,7 +355,7 @@ int do_mem_cmp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return rcode;
 }
 
-int do_mem_cp ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_cp ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong	addr, dest, count;
 	int	size;
@@ -463,7 +463,7 @@ int do_mem_cp ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_mem_base (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_base (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc > 1) {
 		/* Set new base address.
@@ -476,7 +476,7 @@ int do_mem_base (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong	addr, length, i, junk;
 	int	size;
@@ -547,7 +547,7 @@ int do_mem_loop (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 
 #ifdef CONFIG_LOOPW
-int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong	addr, length, i, data;
 	int	size;
@@ -626,7 +626,7 @@ int do_mem_loopw (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * configured using CONFIG_SYS_ALT_MEMTEST. The complete test loops until
  * interrupted by ctrl-c or by a failure of one of the sub-tests.
  */
-int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	vu_long	*addr, *start, *end;
 	ulong	val;
@@ -984,7 +984,7 @@ int do_mem_mtest (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  *	nm{.b, .w, .l} {addr}
  */
 static int
-mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[])
+mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
 {
 	ulong	addr, i;
 	int	nbytes, size;
@@ -1089,7 +1089,7 @@ mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[])
 
 #ifndef CONFIG_CRC32_VERIFY
 
-int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr, length;
 	ulong crc;
@@ -1120,7 +1120,7 @@ int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 #else	/* CONFIG_CRC32_VERIFY */
 
-int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr, length;
 	ulong crc;
@@ -1128,7 +1128,7 @@ int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	ulong vcrc;
 	int verify;
 	int ac;
-	char **av;
+	char * const *av;
 
 	if (argc < 3) {
   usage:
@@ -1175,7 +1175,7 @@ int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #endif	/* CONFIG_CRC32_VERIFY */
 
 #ifdef CONFIG_CMD_MD5SUM
-int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long addr, len;
 	unsigned int i;
@@ -1200,7 +1200,7 @@ int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #endif
 
 #ifdef CONFIG_CMD_SHA1
-int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long addr, len;
 	unsigned int i;
@@ -1225,7 +1225,7 @@ int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #endif
 
 #ifdef CONFIG_CMD_UNZIP
-int do_unzip ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_unzip ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long src, dst;
 	unsigned long src_len = ~0UL, dst_len = ~0UL;
diff --git a/common/cmd_mfsl.c b/common/cmd_mfsl.c
index b19ad0e638..eeef2cddab 100644
--- a/common/cmd_mfsl.c
+++ b/common/cmd_mfsl.c
@@ -31,7 +31,7 @@
 #include <command.h>
 #include <asm/asm.h>
 
-int do_frd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_frd (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int fslnum;
 	unsigned int num;
@@ -189,7 +189,7 @@ int do_frd (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_fwr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_fwr (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int fslnum;
 	unsigned int num;
@@ -348,7 +348,7 @@ int do_fwr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 
 }
 
-int do_rspr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_rspr (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned int reg = 0;
 	unsigned int val = 0;
diff --git a/common/cmd_mgdisk.c b/common/cmd_mgdisk.c
index 3ba62f618c..c2d5217703 100644
--- a/common/cmd_mgdisk.c
+++ b/common/cmd_mgdisk.c
@@ -26,7 +26,7 @@
 
 #include <mg_disk.h>
 
-int do_mg_disk_cmd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mg_disk_cmd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 from, to, size;
 
diff --git a/common/cmd_mii.c b/common/cmd_mii.c
index 65e13c3eb2..1619a2583a 100644
--- a/common/cmd_mii.c
+++ b/common/cmd_mii.c
@@ -292,7 +292,7 @@ static void extract_range(
 }
 
 /* ---------------------------------------------------------------- */
-int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char		op[2];
 	unsigned char	addrlo, addrhi, reglo, reghi;
diff --git a/common/cmd_misc.c b/common/cmd_misc.c
index b0ced2f3b8..8439da2f7d 100644
--- a/common/cmd_misc.c
+++ b/common/cmd_misc.c
@@ -27,7 +27,7 @@
 #include <common.h>
 #include <command.h>
 
-int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sleep (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong start = get_timer(0);
 	ulong delay;
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index c67c9cf728..698157f6b8 100644
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -28,7 +28,7 @@
 #ifndef CONFIG_GENERIC_MMC
 static int curr_device = -1;
 
-int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int dev;
 
@@ -114,7 +114,7 @@ static void print_mmcinfo(struct mmc *mmc)
 	printf("Bus Width: %d-bit\n", mmc->bus_width);
 }
 
-int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct mmc *mmc;
 	int dev_num;
@@ -140,7 +140,7 @@ U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo,
 	""
 );
 
-int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rc = 0;
 
diff --git a/common/cmd_mp.c b/common/cmd_mp.c
index d78c20951e..4d7b871528 100644
--- a/common/cmd_mp.c
+++ b/common/cmd_mp.c
@@ -24,7 +24,7 @@
 #include <command.h>
 
 int
-cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	unsigned long cpuid;
 
diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c
index 116e637d57..447486ba29 100644
--- a/common/cmd_mtdparts.c
+++ b/common/cmd_mtdparts.c
@@ -1713,7 +1713,7 @@ static struct part_info* mtd_part_info(struct mtd_device *dev, unsigned int part
  * @param argv arguments list
  * @return 0 on success, 1 otherwise
  */
-int do_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 /* command line only */
 	struct mtd_device *dev;
@@ -1751,7 +1751,7 @@ int do_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * @param argv arguments list
  * @return 0 on success, 1 otherwise
  */
-int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc == 2) {
 		if (strcmp(argv[1], "default") == 0) {
diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index f611fd7717..ea80555ef8 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -90,7 +90,7 @@ static inline int str2long(char *p, ulong *num)
 }
 
 static int
-arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, size_t *size)
+arg_off_size(int argc, char * const argv[], nand_info_t *nand, ulong *off, size_t *size)
 {
 	int idx = nand_curr_device;
 #if defined(CONFIG_CMD_MTDPARTS)
@@ -204,7 +204,7 @@ static void nand_print_info(int idx)
 	       nand->name, nand->erasesize >> 10);
 }
 
-int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int i, dev, ret = 0;
 	ulong addr, off;
@@ -599,7 +599,7 @@ static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
 	return 0;
 }
 
-int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char *boot_device = NULL;
 	int idx;
diff --git a/common/cmd_net.c b/common/cmd_net.c
index b80a7ad8e3..3cdb07fdc7 100644
--- a/common/cmd_net.c
+++ b/common/cmd_net.c
@@ -28,11 +28,11 @@
 #include <command.h>
 #include <net.h>
 
-extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
+extern int do_bootm (cmd_tbl_t *, int, int, char * const []);
 
-static int netboot_common (proto_t, cmd_tbl_t *, int , char *[]);
+static int netboot_common (proto_t, cmd_tbl_t *, int , char * const []);
 
-int do_bootp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_bootp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return netboot_common (BOOTP, cmdtp, argc, argv);
 }
@@ -43,7 +43,7 @@ U_BOOT_CMD(
 	"[loadAddress] [[hostIPaddr:]bootfilename]"
 );
 
-int do_tftpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_tftpb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return netboot_common (TFTP, cmdtp, argc, argv);
 }
@@ -54,7 +54,7 @@ U_BOOT_CMD(
 	"[loadAddress] [[hostIPaddr:]bootfilename]"
 );
 
-int do_rarpb (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_rarpb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return netboot_common (RARP, cmdtp, argc, argv);
 }
@@ -66,7 +66,7 @@ U_BOOT_CMD(
 );
 
 #if defined(CONFIG_CMD_DHCP)
-int do_dhcp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dhcp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return netboot_common(DHCP, cmdtp, argc, argv);
 }
@@ -79,7 +79,7 @@ U_BOOT_CMD(
 #endif
 
 #if defined(CONFIG_CMD_NFS)
-int do_nfs (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_nfs (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return netboot_common(NFS, cmdtp, argc, argv);
 }
@@ -151,7 +151,7 @@ static void netboot_update_env (void)
 }
 
 static int
-netboot_common (proto_t proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
+netboot_common (proto_t proto, cmd_tbl_t *cmdtp, int argc, char * const argv[])
 {
 	char *s;
 	char *end;
@@ -230,7 +230,7 @@ netboot_common (proto_t proto, cmd_tbl_t *cmdtp, int argc, char *argv[])
 }
 
 #if defined(CONFIG_CMD_PING)
-int do_ping (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ping (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2)
 		return -1;
@@ -280,7 +280,7 @@ static void cdp_update_env(void)
 
 }
 
-int do_cdp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_cdp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int r;
 
@@ -302,7 +302,7 @@ U_BOOT_CMD(
 #endif
 
 #if defined(CONFIG_CMD_SNTP)
-int do_sntp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sntp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *toff;
 
@@ -340,7 +340,7 @@ U_BOOT_CMD(
 #endif
 
 #if defined(CONFIG_CMD_DNS)
-int do_dns(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_dns(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc == 1) {
 		cmd_usage(cmdtp);
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index d2ef217603..13325bc836 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -139,7 +139,7 @@ static int printenv(char *name, int state)
 	return i;
 }
 
-int do_printenv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_printenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 	int rcode = 0;
@@ -173,7 +173,7 @@ int do_printenv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * This function will ONLY work with a in-RAM copy of the environment
  */
 
-int _do_setenv (int flag, int argc, char *argv[])
+int _do_setenv (int flag, int argc, char * const argv[])
 {
 	int   i, len, oldval;
 	int   console = -1;
@@ -390,7 +390,7 @@ int _do_setenv (int flag, int argc, char *argv[])
 
 int setenv (char *varname, char *varvalue)
 {
-	char *argv[4] = { "setenv", varname, varvalue, NULL };
+	char * const argv[4] = { "setenv", varname, varvalue, NULL };
 	if ((varvalue == NULL) || (varvalue[0] == '\0'))
 		return _do_setenv (0, 2, argv);
 	else
@@ -400,12 +400,12 @@ int setenv (char *varname, char *varvalue)
 #ifdef CONFIG_HAS_UID
 void forceenv (char *varname, char *varvalue)
 {
-	char *argv[4] = { "forceenv", varname, varvalue, NULL };
+	char * const argv[4] = { "forceenv", varname, varvalue, NULL };
 	_do_setenv (0xdeaf4add, 3, argv);
 }
 #endif
 
-int do_setenv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_setenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc < 2) {
 		cmd_usage(cmdtp);
@@ -420,7 +420,7 @@ int do_setenv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  */
 
 #if defined(CONFIG_CMD_ASKENV)
-int do_askenv ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_askenv ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	extern char console_buffer[CONFIG_SYS_CBSIZE];
 	char message[CONFIG_SYS_CBSIZE];
@@ -497,7 +497,7 @@ int do_askenv ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  * Interactively edit an environment variable
  */
 #if defined(CONFIG_CMD_EDITENV)
-int do_editenv(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_editenv(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char buffer[CONFIG_SYS_CBSIZE];
 	char *init_val;
@@ -576,7 +576,7 @@ int getenv_r (char *name, char *buf, unsigned len)
 
 #if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
 
-int do_saveenv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_saveenv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	extern char * env_name_spec;
 
@@ -660,7 +660,7 @@ U_BOOT_CMD(
 #endif
 
 #if defined(CONFIG_CMD_RUN)
-int do_run (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_run (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 U_BOOT_CMD(
 	run,	CONFIG_SYS_MAXARGS,	1,	do_run,
 	"run commands in an environment variable",
diff --git a/common/cmd_onenand.c b/common/cmd_onenand.c
index 2646ae91d2..a3e46a338f 100644
--- a/common/cmd_onenand.c
+++ b/common/cmd_onenand.c
@@ -32,7 +32,7 @@ static inline int str2long(char *p, ulong *num)
 	return (*p != '\0' && *endptr == '\0') ? 1 : 0;
 }
 
-static int arg_off_size(int argc, char *argv[], ulong *off, size_t *size)
+static int arg_off_size(int argc, char * const argv[], ulong *off, size_t *size)
 {
 	if (argc >= 1) {
 		if (!(str2long(argv[0], off))) {
@@ -330,13 +330,13 @@ static int onenand_dump(struct mtd_info *mtd, ulong off, int only_oob)
 	return 0;
 }
 
-static int do_onenand_info(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand_info(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("%s\n", mtd->name);
 	return 0;
 }
 
-static int do_onenand_bad(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand_bad(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong ofs;
 
@@ -351,7 +351,7 @@ static int do_onenand_bad(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-static int do_onenand_read(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand_read(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	char *s;
 	int oob = 0;
@@ -383,7 +383,7 @@ static int do_onenand_read(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return ret == 0 ? 0 : 1;
 }
 
-static int do_onenand_write(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand_write(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr, ofs;
 	size_t len;
@@ -409,7 +409,7 @@ static int do_onenand_write(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return ret == 0 ? 0 : 1;
 }
 
-static int do_onenand_erase(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand_erase(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong ofs;
 	int ret = 0;
@@ -445,7 +445,7 @@ static int do_onenand_erase(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return ret == 0 ? 0 : 1;
 }
 
-static int do_onenand_test(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong ofs;
 	int ret = 0;
@@ -470,7 +470,7 @@ static int do_onenand_test(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return ret == 0 ? 0 : 1;
 }
 
-static int do_onenand_dump(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand_dump(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong ofs;
 	int ret = 0;
@@ -493,7 +493,7 @@ static int do_onenand_dump(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 	return ret == 0 ? 1 : 0;
 }
 
-static int do_onenand_markbad(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand_markbad(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int ret = 0;
 	ulong addr;
@@ -537,7 +537,7 @@ static cmd_tbl_t cmd_onenand_sub[] = {
 	U_BOOT_CMD_MKENT(markbad, CONFIG_SYS_MAXARGS, 0, do_onenand_markbad, "", ""),
 };
 
-static int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	cmd_tbl_t *c;
 
diff --git a/common/cmd_otp.c b/common/cmd_otp.c
index 30af5a31a8..a8c73b5a86 100644
--- a/common/cmd_otp.c
+++ b/common/cmd_otp.c
@@ -80,7 +80,7 @@ static void set_otp_timing(bool write)
 	bfrom_OtpCommand(OTP_INIT, write ? timing : timing & ~(-1 << 15));
 }
 
-int do_otp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_otp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	uint32_t ret, base_flags;
 	bool prompt_user, force_read;
diff --git a/common/cmd_pci.c b/common/cmd_pci.c
index 8a260df8bb..358ca60b81 100644
--- a/common/cmd_pci.c
+++ b/common/cmd_pci.c
@@ -471,7 +471,7 @@ pci_cfg_modify (pci_dev_t bdf, ulong addr, ulong size, ulong value, int incrflag
  *      pci modify[.b, .w, .l] bus.device.function [addr]
  *      pci write[.b, .w, .l] bus.device.function addr value
  */
-int do_pci (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pci (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr = 0, value = 0, size = 0;
 	pci_dev_t bdf = 0;
diff --git a/common/cmd_pcmcia.c b/common/cmd_pcmcia.c
index e576b0c597..70e52104f5 100644
--- a/common/cmd_pcmcia.c
+++ b/common/cmd_pcmcia.c
@@ -66,7 +66,7 @@
 extern int pcmcia_on (void);
 extern int pcmcia_off (void);
 
-int do_pinit (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pinit (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rcode = 0;
 
diff --git a/common/cmd_portio.c b/common/cmd_portio.c
index f8befee296..92d61d206f 100644
--- a/common/cmd_portio.c
+++ b/common/cmd_portio.c
@@ -37,7 +37,7 @@ static uint in_last_addr, in_last_size;
 static uint out_last_addr, out_last_size, out_last_value;
 
 
-int do_portio_out (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_portio_out (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uint addr = out_last_addr;
 	uint size = out_last_size;
@@ -97,7 +97,7 @@ U_BOOT_CMD(
 	"[.b, .w, .l] port value\n    - output to IO port"
 );
 
-int do_portio_in (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_portio_in (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	uint addr = in_last_addr;
 	uint size = in_last_size;
diff --git a/common/cmd_reginfo.c b/common/cmd_reginfo.c
index 89fd9ec4e9..94b8d58698 100644
--- a/common/cmd_reginfo.c
+++ b/common/cmd_reginfo.c
@@ -35,7 +35,7 @@ extern void ppc4xx_reginfo(void);
 extern void mpc86xx_reginfo(void);
 #endif
 
-int do_reginfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reginfo (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 #if defined(CONFIG_8xx)
 	volatile immap_t     *immap  = (immap_t *)CONFIG_SYS_IMMR;
diff --git a/common/cmd_reiser.c b/common/cmd_reiser.c
index 8ede782316..2133a1fa4f 100644
--- a/common/cmd_reiser.c
+++ b/common/cmd_reiser.c
@@ -47,7 +47,7 @@
 #define PRINTF(fmt,args...)
 #endif
 
-int do_reiserls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reiserls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = "/";
 	int dev=0;
@@ -110,7 +110,7 @@ U_BOOT_CMD(
 /******************************************************************************
  * Reiserfs boot command intepreter. Derived from diskboot
  */
-int do_reiserload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_reiserload (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = NULL;
 	char *ep;
diff --git a/common/cmd_sata.c b/common/cmd_sata.c
index 1693a7e312..7be58e57c6 100644
--- a/common/cmd_sata.c
+++ b/common/cmd_sata.c
@@ -62,7 +62,7 @@ block_dev_desc_t *sata_get_dev(int dev)
 	return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
 }
 
-int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int rc = 0;
 
diff --git a/common/cmd_scsi.c b/common/cmd_scsi.c
index f89492fe22..5b2df28dd2 100644
--- a/common/cmd_scsi.c
+++ b/common/cmd_scsi.c
@@ -202,7 +202,7 @@ block_dev_desc_t * scsi_get_dev(int dev)
 /******************************************************************************
  * scsi boot command intepreter. Derived from diskboot
  */
-int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *boot_device = NULL;
 	char *ep;
@@ -342,7 +342,7 @@ int do_scsiboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 /*********************************************************************************
  * scsi command intepreter
  */
-int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_scsi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	switch (argc) {
     case 0:
diff --git a/common/cmd_setexpr.c b/common/cmd_setexpr.c
index da9e844a86..b3e489fbe3 100644
--- a/common/cmd_setexpr.c
+++ b/common/cmd_setexpr.c
@@ -50,7 +50,7 @@ static ulong get_arg(char *s, int w)
 	}
 }
 
-int do_setexpr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_setexpr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong a, b;
 	char buf[16];
diff --git a/common/cmd_sf.c b/common/cmd_sf.c
index d69ae6a1ba..4826e9f5ff 100644
--- a/common/cmd_sf.c
+++ b/common/cmd_sf.c
@@ -19,7 +19,7 @@
 
 static struct spi_flash *flash;
 
-static int do_spi_flash_probe(int argc, char *argv[])
+static int do_spi_flash_probe(int argc, char * const argv[])
 {
 	unsigned int bus = 0;
 	unsigned int cs;
@@ -75,7 +75,7 @@ usage:
 	return 1;
 }
 
-static int do_spi_flash_read_write(int argc, char *argv[])
+static int do_spi_flash_read_write(int argc, char * const argv[])
 {
 	unsigned long addr;
 	unsigned long offset;
@@ -122,7 +122,7 @@ usage:
 	return 1;
 }
 
-static int do_spi_flash_erase(int argc, char *argv[])
+static int do_spi_flash_erase(int argc, char * const argv[])
 {
 	unsigned long offset;
 	unsigned long len;
@@ -152,7 +152,7 @@ usage:
 	return 1;
 }
 
-static int do_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	const char *cmd;
 
diff --git a/common/cmd_source.c b/common/cmd_source.c
index 1424d3038c..16a627a3dd 100644
--- a/common/cmd_source.c
+++ b/common/cmd_source.c
@@ -199,7 +199,7 @@ source (ulong addr, const char *fit_uname)
 /**************************************************/
 #if defined(CONFIG_CMD_SOURCE)
 int
-do_source (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_source (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	int rcode;
diff --git a/common/cmd_spi.c b/common/cmd_spi.c
index ab7aac780d..bafa217d03 100644
--- a/common/cmd_spi.c
+++ b/common/cmd_spi.c
@@ -63,7 +63,7 @@ static uchar 		din[MAX_SPI_BYTES];
  * The command prints out the hexadecimal string received via SPI.
  */
 
-int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_spi (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct spi_slave *slave;
 	char  *cp = 0;
diff --git a/common/cmd_spibootldr.c b/common/cmd_spibootldr.c
index d29ed2bd85..68aa618320 100644
--- a/common/cmd_spibootldr.c
+++ b/common/cmd_spibootldr.c
@@ -15,7 +15,7 @@
 #include <asm/blackfin.h>
 #include <asm/mach-common/bits/bootrom.h>
 
-int do_spibootldr(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_spibootldr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	s32 addr;
 
diff --git a/common/cmd_strings.c b/common/cmd_strings.c
index 3a0d8ff43a..bbbb6b4da9 100644
--- a/common/cmd_strings.c
+++ b/common/cmd_strings.c
@@ -12,7 +12,7 @@
 
 static char *start_addr, *last_addr;
 
-int do_strings(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_strings(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	if (argc == 1) {
 		cmd_usage(cmdtp);
diff --git a/common/cmd_terminal.c b/common/cmd_terminal.c
index 60ec378b3c..7cc1a6c6a0 100644
--- a/common/cmd_terminal.c
+++ b/common/cmd_terminal.c
@@ -29,7 +29,7 @@
 #include <stdio_dev.h>
 #include <serial.h>
 
-int do_terminal(cmd_tbl_t * cmd, int flag, int argc, char *argv[])
+int do_terminal(cmd_tbl_t * cmd, int flag, int argc, char * const argv[])
 {
 	int last_tilde = 0;
 	struct stdio_dev *dev = NULL;
diff --git a/common/cmd_test.c b/common/cmd_test.c
index d886f893c7..fcb5ef2f71 100644
--- a/common/cmd_test.c
+++ b/common/cmd_test.c
@@ -24,9 +24,9 @@
 #include <common.h>
 #include <command.h>
 
-int do_test(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-	char **ap;
+	char * const *ap;
 	int left, adv, expr, last_expr, neg, last_cmp;
 
 	/* args? */
@@ -150,7 +150,7 @@ U_BOOT_CMD(
 	"[args..]"
 );
 
-int do_false(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_false(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return 1;
 }
@@ -161,7 +161,7 @@ U_BOOT_CMD(
 	NULL
 );
 
-int do_true(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_true(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	return 0;
 }
diff --git a/common/cmd_tsi148.c b/common/cmd_tsi148.c
index f2097fddd9..1e83c886e5 100644
--- a/common/cmd_tsi148.c
+++ b/common/cmd_tsi148.c
@@ -402,7 +402,7 @@ int tsi148_vme_crg_window(unsigned int vmeAddr, int vam)
 /*
  * Tundra Tsi148 configuration
  */
-int do_tsi148(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_tsi148(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr1 = 0, addr2 = 0, size = 0, vam = 0, vdw = 0;
 	char cmd = 'x';
diff --git a/common/cmd_ubi.c b/common/cmd_ubi.c
index 2484b40491..2faf8d82ce 100644
--- a/common/cmd_ubi.c
+++ b/common/cmd_ubi.c
@@ -436,7 +436,7 @@ static int ubi_dev_scan(struct mtd_info *info, char *ubidev,
 	return 0;
 }
 
-static int do_ubi(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int do_ubi(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	size_t size = 0;
 	ulong addr = 0;
diff --git a/common/cmd_ubifs.c b/common/cmd_ubifs.c
index ed0e9db2ac..9017041af4 100644
--- a/common/cmd_ubifs.c
+++ b/common/cmd_ubifs.c
@@ -42,7 +42,7 @@ int ubifs_mount(char *vol_name);
 int ubifs_ls(char *dir_name);
 int ubifs_load(char *filename, u32 addr, u32 size);
 
-int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *vol_name;
 	int ret;
@@ -68,7 +68,7 @@ int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
-int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename = "/";
 	int ret;
@@ -89,7 +89,7 @@ int do_ubifs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return ret;
 }
 
-int do_ubifs_load(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ubifs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *filename;
 	char *endp;
diff --git a/common/cmd_universe.c b/common/cmd_universe.c
index 0a6d722a0e..a86a5746b0 100644
--- a/common/cmd_universe.c
+++ b/common/cmd_universe.c
@@ -317,7 +317,7 @@ int universe_vme_slave_window(unsigned int vmeAddr, unsigned int pciAddr, int si
 /*
  * Tundra Universe configuration
  */
-int do_universe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_universe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr1 = 0, addr2 = 0, size = 0, vam = 0, pms = 0, vdw = 0;
 	char cmd = 'x';
diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index fcb5f763c0..73d74ac055 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -349,7 +349,7 @@ void usb_show_tree(struct usb_device *dev)
  * usb boot command intepreter. Derived from diskboot
  */
 #ifdef CONFIG_USB_STORAGE
-int do_usbboot(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_usbboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *boot_device = NULL;
 	char *ep;
@@ -506,7 +506,7 @@ int do_usbboot(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 /******************************************************************************
  * usb command intepreter
  */
-int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 
 	int i;
diff --git a/common/cmd_version.c b/common/cmd_version.c
index 7f165c7b70..7d1b495c51 100644
--- a/common/cmd_version.c
+++ b/common/cmd_version.c
@@ -26,7 +26,7 @@
 
 extern char version_string[];
 
-int do_version(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_version(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("\n%s\n", version_string);
 
diff --git a/common/cmd_vfd.c b/common/cmd_vfd.c
index 9c5b0385b5..1429d31167 100644
--- a/common/cmd_vfd.c
+++ b/common/cmd_vfd.c
@@ -45,7 +45,7 @@ extern int transfer_pic(unsigned char, unsigned char *, int, int);
 
 int trab_vfd (ulong bitmap);
 
-int do_vfd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_vfd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong bitmap;
 
diff --git a/common/cmd_ximg.c b/common/cmd_ximg.c
index 75499b4b84..8a2cf835d8 100644
--- a/common/cmd_ximg.c
+++ b/common/cmd_ximg.c
@@ -43,7 +43,7 @@
 #endif
 
 int
-do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong		addr = load_addr;
 	ulong		dest = 0;
diff --git a/common/cmd_yaffs2.c b/common/cmd_yaffs2.c
index d448d04831..7c01ea2a25 100644
--- a/common/cmd_yaffs2.c
+++ b/common/cmd_yaffs2.c
@@ -24,7 +24,7 @@ extern void cmd_yaffs_mv(const char *oldPath, const char *newPath);
 extern int yaffs_DumpDevStruct(const char *path);
 
 
-int do_ymount (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ymount (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *mtpoint = argv[1];
     cmd_yaffs_mount(mtpoint);
@@ -32,7 +32,7 @@ int do_ymount (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_yumount (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_yumount (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *mtpoint = argv[1];
     cmd_yaffs_umount(mtpoint);
@@ -40,7 +40,7 @@ int do_yumount (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_yls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_yls (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *dirname = argv[argc-1];
 
@@ -49,7 +49,7 @@ int do_yls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_yrd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_yrd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *filename = argv[1];
     printf ("Reading file %s ", filename);
@@ -60,7 +60,7 @@ int do_yrd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_ywr (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ywr (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *filename = argv[1];
     ulong value = simple_strtoul(argv[2], NULL, 16);
@@ -74,7 +74,7 @@ int do_ywr (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_yrdm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_yrdm (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *filename = argv[1];
     ulong addr = simple_strtoul(argv[2], NULL, 16);
@@ -84,7 +84,7 @@ int do_yrdm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_ywrm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ywrm (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *filename = argv[1];
     ulong addr = simple_strtoul(argv[2], NULL, 16);
@@ -95,7 +95,7 @@ int do_ywrm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_ymkdir (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ymkdir (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *dirname = argv[1];
 
@@ -104,7 +104,7 @@ int do_ymkdir (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_yrmdir (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_yrmdir (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *dirname = argv[1];
 
@@ -113,7 +113,7 @@ int do_yrmdir (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_yrm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_yrm (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *path = argv[1];
 
@@ -122,7 +122,7 @@ int do_yrm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_ymv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ymv (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *oldPath = argv[1];
     char *newPath = argv[2];
@@ -132,7 +132,7 @@ int do_ymv (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
     return(0);
 }
 
-int do_ydump (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ydump (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     char *dirname = argv[1];
     if (yaffs_DumpDevStruct(dirname) != 0)
diff --git a/common/command.c b/common/command.c
index 67ad692004..a1fc592c24 100644
--- a/common/command.c
+++ b/common/command.c
@@ -34,7 +34,7 @@
  */
 
 int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int
-	      flag, int argc, char *argv[])
+	      flag, int argc, char * const argv[])
 {
 	int i;
 	int rcode = 0;
@@ -158,7 +158,7 @@ int cmd_usage(cmd_tbl_t *cmdtp)
 
 #ifdef CONFIG_AUTO_COMPLETE
 
-int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
+int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[])
 {
 	static char tmp_buf[512];
 	int space;
@@ -175,7 +175,7 @@ int var_complete(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
 }
 
 static void install_auto_complete_handler(const char *cmd,
-		int (*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]))
+		int (*complete)(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]))
 {
 	cmd_tbl_t *cmdtp;
 
@@ -200,7 +200,7 @@ void install_auto_complete(void)
 
 /*************************************************************************************/
 
-static int complete_cmdv(int argc, char *argv[], char last_char, int maxv, char *cmdv[])
+static int complete_cmdv(int argc, char * const argv[], char last_char, int maxv, char *cmdv[])
 {
 	cmd_tbl_t *cmdtp;
 	const char *p;
@@ -301,7 +301,7 @@ static int make_argv(char *s, int argvsz, char *argv[])
 	return argc;
 }
 
-static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char *argv[])
+static void print_argv(const char *banner, const char *leader, const char *sep, int linemax, char * const argv[])
 {
 	int ll = leader != NULL ? strlen(leader) : 0;
 	int sl = sep != NULL ? strlen(sep) : 0;
@@ -328,7 +328,7 @@ static void print_argv(const char *banner, const char *leader, const char *sep,
 	printf("\n");
 }
 
-static int find_common_prefix(char *argv[])
+static int find_common_prefix(char * const argv[])
 {
 	int i, len;
 	char *anchor, *s, *t;
diff --git a/common/hush.c b/common/hush.c
index 9eea90f428..8a74d225e9 100644
--- a/common/hush.c
+++ b/common/hush.c
@@ -94,7 +94,7 @@
 #include <hush.h>
 #include <command.h>        /* find_cmd */
 /*cmd_boot.c*/
-extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);      /* do_bootd */
+extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);      /* do_bootd */
 #endif
 #ifndef __U_BOOT__
 #include <ctype.h>     /* isalpha, isdigit */
@@ -1024,7 +1024,7 @@ static void get_user_input(struct in_str *i)
 
 #ifdef CONFIG_BOOT_RETRY_TIME
 #  ifdef CONFIG_RESET_TO_RETRY
-	extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+	extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 #  else
 #	error "This currently only works with CONFIG_RESET_TO_RETRY enabled"
 #  endif
@@ -1681,7 +1681,7 @@ static int run_pipe_real(struct pipe *pi)
 			} else {
 				int rcode;
 #if defined(CONFIG_CMD_BOOTD)
-	    extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+	    extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 				/* avoid "bootd" recursion */
 				if (cmdtp->cmd == do_bootd) {
@@ -3351,7 +3351,7 @@ static void setup_job_control(void)
 	tcsetpgrp(shell_terminal, shell_pgrp);
 }
 
-int hush_main(int argc, char **argv)
+int hush_main(int argc, char * const *argv)
 {
 	int opt;
 	FILE *input;
@@ -3588,7 +3588,7 @@ static char * make_string(char ** inp)
 }
 
 #ifdef __U_BOOT__
-int do_showvar (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_showvar (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	int i, k;
 	int rcode = 0;
diff --git a/common/image.c b/common/image.c
index 2b6007e9c6..6d8833e814 100644
--- a/common/image.c
+++ b/common/image.c
@@ -60,7 +60,7 @@ static int fit_check_ramdisk (const void *fit, int os_noffset,
 #endif
 
 #ifdef CONFIG_CMD_BDI
-extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 #endif
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -756,7 +756,7 @@ int genimg_has_config (bootm_headers_t *images)
  *     1, if ramdisk image is found but corrupted, or invalid
  *     rd_start and rd_end are set to 0 if no ramdisk exists
  */
-int boot_get_ramdisk (int argc, char *argv[], bootm_headers_t *images,
+int boot_get_ramdisk (int argc, char * const argv[], bootm_headers_t *images,
 		uint8_t arch, ulong *rd_start, ulong *rd_end)
 {
 	ulong rd_addr, rd_load;
@@ -1279,7 +1279,7 @@ error:
  *     1, if fdt image is found but corrupted
  *     of_flat_tree and of_size are set to 0 if no fdt exists
  */
-int boot_get_fdt (int flag, int argc, char *argv[], bootm_headers_t *images,
+int boot_get_fdt (int flag, int argc, char * const argv[], bootm_headers_t *images,
 		char **of_flat_tree, ulong *of_size)
 {
 	const image_header_t *fdt_hdr;
diff --git a/common/kgdb.c b/common/kgdb.c
index 9e3b64c379..8a621ad1fc 100644
--- a/common/kgdb.c
+++ b/common/kgdb.c
@@ -584,7 +584,7 @@ breakpoint(void)
 }
 
 int
-do_kgdb(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+do_kgdb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
     printf("Entering KGDB mode via exception handler...\n\n");
     kgdb_breakpoint(argc - 1, argv + 1);
diff --git a/common/lcd.c b/common/lcd.c
index 64fb1c6408..93ddedf01e 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -78,7 +78,7 @@ static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
 
 static int lcd_init (void *lcdbase);
 
-static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
+static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]);
 static void *lcd_logo (void);
 
 static int lcd_getbgcolor (void);
@@ -350,7 +350,7 @@ int drv_lcd_init (void)
 }
 
 /*----------------------------------------------------------------------*/
-static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 #if LCD_BPP == LCD_MONOCHROME
 	/* Setting the palette */
diff --git a/common/main.c b/common/main.c
index 3760ba3d6b..20090ee6aa 100644
--- a/common/main.c
+++ b/common/main.c
@@ -51,10 +51,10 @@ void inline __show_boot_progress (int val) {}
 void show_boot_progress (int val) __attribute__((weak, alias("__show_boot_progress")));
 
 #if defined(CONFIG_BOOT_RETRY_TIME) && defined(CONFIG_RESET_TO_RETRY)
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);		/* for do_reset() prototype */
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);		/* for do_reset() prototype */
 #endif
 
-extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 #if defined(CONFIG_UPDATE_TFTP)
 void update_tftp (void);
@@ -1414,7 +1414,7 @@ int run_command (const char *cmd, int flag)
 /****************************************************************************/
 
 #if defined(CONFIG_CMD_RUN)
-int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+int do_run (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 {
 	int i;
 
diff --git a/doc/README.standalone b/doc/README.standalone
index 6381087493..6e6b65fe77 100644
--- a/doc/README.standalone
+++ b/doc/README.standalone
@@ -40,7 +40,7 @@ Design Notes on Exporting U-Boot Functions to Standalone Applications:
    that returns the ABI version of the running U-Boot. I.e., a
    typical application startup may look like this:
 
-	int my_app (int argc, char *argv[])
+	int my_app (int argc, char * const argv[])
 	{
 		app_startup (argv);
 		if (get_version () != XF_VERSION)
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index e8273ee363..d1065f4f8e 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -150,7 +150,7 @@ cmd_tbl_t cmd_pca953x[] = {
 #endif
 };
 
-int do_pca953x(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pca953x(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	static uint8_t chip = CONFIG_SYS_I2C_PCA953X_ADDR;
 	int val;
diff --git a/drivers/misc/ds4510.c b/drivers/misc/ds4510.c
index f2510a38fd..5b33c1ffce 100644
--- a/drivers/misc/ds4510.c
+++ b/drivers/misc/ds4510.c
@@ -273,7 +273,7 @@ cmd_tbl_t cmd_ds4510[] = {
 #endif
 };
 
-int do_ds4510(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_ds4510(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	static uint8_t chip = CONFIG_SYS_I2C_DS4510_ADDR;
 	cmd_tbl_t *c;
diff --git a/drivers/misc/fsl_pmic.c b/drivers/misc/fsl_pmic.c
index 87f0aedeb6..274327f470 100644
--- a/drivers/misc/fsl_pmic.c
+++ b/drivers/misc/fsl_pmic.c
@@ -156,7 +156,7 @@ static void pmic_dump(int numregs)
 	puts("\n");
 }
 
-int do_pmic(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+int do_pmic(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char *cmd;
 	int nregs;
diff --git a/drivers/qe/qe.c b/drivers/qe/qe.c
index 8882c4f627..63cc68e307 100644
--- a/drivers/qe/qe.c
+++ b/drivers/qe/qe.c
@@ -436,7 +436,7 @@ struct qe_firmware_info *qe_get_firmware_info(void)
 	return qe_firmware_uploaded ? &qe_firmware_info : NULL;
 }
 
-static int qe_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int qe_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 
diff --git a/examples/api/demo.c b/examples/api/demo.c
index df9c4bd8bc..65e7491847 100644
--- a/examples/api/demo.c
+++ b/examples/api/demo.c
@@ -41,7 +41,7 @@ void	test_dump_sig(struct api_signature *);
 
 static char buf[BUF_SZ];
 
-int main(int argc, char *argv[])
+int main(int argc, char * const argv[])
 {
 	int rv = 0, h, i, j, devs_no;
 	struct api_signature *sig = NULL;
diff --git a/examples/standalone/82559_eeprom.c b/examples/standalone/82559_eeprom.c
index 5e2eee9e98..8dd7079ae7 100644
--- a/examples/standalone/82559_eeprom.c
+++ b/examples/standalone/82559_eeprom.c
@@ -305,7 +305,7 @@ write_config_word(int bus, int dev, int func, int reg, u16 data)
 }
 
 
-int main (int argc, char *argv[])
+int main (int argc, char * const argv[])
 {
 	unsigned char *eth_addr;
 	uchar buf[6];
diff --git a/examples/standalone/atmel_df_pow2.c b/examples/standalone/atmel_df_pow2.c
index db0cd693a9..b5b450317d 100644
--- a/examples/standalone/atmel_df_pow2.c
+++ b/examples/standalone/atmel_df_pow2.c
@@ -114,7 +114,7 @@ static char *getline(void)
 	}
 }
 
-int atmel_df_pow2(int argc, char *argv[])
+int atmel_df_pow2(int argc, char * const argv[])
 {
 	/* Print the ABI version */
 	app_startup(argv);
diff --git a/examples/standalone/eepro100_eeprom.c b/examples/standalone/eepro100_eeprom.c
index 771a7e887e..3c7f380977 100644
--- a/examples/standalone/eepro100_eeprom.c
+++ b/examples/standalone/eepro100_eeprom.c
@@ -25,7 +25,7 @@
 
 static int reset_eeprom(unsigned long ioaddr, unsigned char *hwaddr);
 
-int eepro100_eeprom(int argc, char *argv[])
+int eepro100_eeprom(int argc, char * const argv[])
 {
 	int ret = 0;
 
diff --git a/examples/standalone/hello_world.c b/examples/standalone/hello_world.c
index 9317f6d8c0..067c39046d 100644
--- a/examples/standalone/hello_world.c
+++ b/examples/standalone/hello_world.c
@@ -24,7 +24,7 @@
 #include <common.h>
 #include <exports.h>
 
-int hello_world (int argc, char *argv[])
+int hello_world (int argc, char * const argv[])
 {
 	int i;
 
diff --git a/examples/standalone/interrupt.c b/examples/standalone/interrupt.c
index f3061d1ec0..a5b58a1a08 100644
--- a/examples/standalone/interrupt.c
+++ b/examples/standalone/interrupt.c
@@ -44,7 +44,7 @@
 
 static void irq_handler (void *arg);
 
-int interrupt (int argc, char *argv[])
+int interrupt (int argc, char * const argv[])
 {
 	int c, irq = -1;
 
diff --git a/examples/standalone/mem_to_mem_idma2intr.c b/examples/standalone/mem_to_mem_idma2intr.c
index f35f1ba5f6..d0a75eadfd 100644
--- a/examples/standalone/mem_to_mem_idma2intr.c
+++ b/examples/standalone/mem_to_mem_idma2intr.c
@@ -204,9 +204,9 @@ int memcmp(const void * cs,const void * ct,size_t count)
 #endif	/* STANDALONE */
 
 #ifdef STANDALONE
-int mem_to_mem_idma2intr (int argc, char *argv[])
+int mem_to_mem_idma2intr (int argc, char * const argv[])
 #else
-int do_idma (bd_t * bd, int argc, char *argv[])
+int do_idma (bd_t * bd, int argc, char * const argv[])
 #endif	/* STANDALONE */
 {
 	int i;
diff --git a/examples/standalone/smc91111_eeprom.c b/examples/standalone/smc91111_eeprom.c
index b91f34c3af..c98b0fc075 100644
--- a/examples/standalone/smc91111_eeprom.c
+++ b/examples/standalone/smc91111_eeprom.c
@@ -48,7 +48,7 @@ void print_MAC (struct eth_device *dev);
 int read_eeprom_reg (struct eth_device *dev, int reg);
 void print_macaddr (struct eth_device *dev);
 
-int smc91111_eeprom (int argc, char *argv[])
+int smc91111_eeprom (int argc, char * const argv[])
 {
 	int c, i, j, done, line, reg, value, start, what;
 	char input[50];
diff --git a/examples/standalone/smc911x_eeprom.c b/examples/standalone/smc911x_eeprom.c
index 104047f5a5..c51a05028a 100644
--- a/examples/standalone/smc911x_eeprom.c
+++ b/examples/standalone/smc911x_eeprom.c
@@ -313,7 +313,7 @@ static char *getline(void)
 /**
  *	smc911x_eeprom - our application's main() function
  */
-int smc911x_eeprom(int argc, char *argv[])
+int smc911x_eeprom(int argc, char * const argv[])
 {
 	/* Avoid initializing on stack as gcc likes to call memset() */
 	struct eth_device dev;
diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c
index f3e1ab5c6a..2d2e7098b7 100644
--- a/examples/standalone/stubs.c
+++ b/examples/standalone/stubs.c
@@ -189,7 +189,7 @@ void __attribute__((unused)) dummy(void)
 
 extern unsigned long __bss_start, _end;
 
-void app_startup(char **argv)
+void app_startup(char * const *argv)
 {
 	unsigned char * cp = (unsigned char *) &__bss_start;
 
diff --git a/examples/standalone/test_burst.c b/examples/standalone/test_burst.c
index 7109c098ef..2b101b74e6 100644
--- a/examples/standalone/test_burst.c
+++ b/examples/standalone/test_burst.c
@@ -85,7 +85,7 @@ static unsigned long test_pattern [] = {
 };
 
 
-int test_burst (int argc, char *argv[])
+int test_burst (int argc, char * const argv[])
 {
 	unsigned long size = CACHE_LINE_SIZE;
 	unsigned int pass = 0;
diff --git a/examples/standalone/timer.c b/examples/standalone/timer.c
index 6628b21de9..834cc9a49e 100644
--- a/examples/standalone/timer.c
+++ b/examples/standalone/timer.c
@@ -115,7 +115,7 @@ void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval);
 
 static char *usage = "\n[q, b, e, ?] ";
 
-int timer (int argc, char *argv[])
+int timer (int argc, char * const argv[])
 {
 	cpmtimer8xx_t *cpmtimerp;	/* Pointer to the CPM Timer structure   */
 	tid_8xx_cpmtimer_t hw;
diff --git a/include/bedbug/type.h b/include/bedbug/type.h
index 38ee9ded73..b7b447b1fe 100644
--- a/include/bedbug/type.h
+++ b/include/bedbug/type.h
@@ -15,7 +15,7 @@ typedef struct {
 	int current_bp;
 	struct pt_regs *regs;
 
-	void (*do_break) (cmd_tbl_t *, int, int, char *[]);
+	void (*do_break) (cmd_tbl_t *, int, int, char * const []);
 	void (*break_isr) (struct pt_regs *);
 	int (*find_empty) (void);
 	int (*set) (int, unsigned long);
diff --git a/include/command.h b/include/command.h
index 55caa6eaf8..9144d69206 100644
--- a/include/command.h
+++ b/include/command.h
@@ -48,14 +48,14 @@ struct cmd_tbl_s {
 	int		maxargs;	/* maximum number of arguments	*/
 	int		repeatable;	/* autorepeat allowed?		*/
 					/* Implementation function	*/
-	int		(*cmd)(struct cmd_tbl_s *, int, int, char *[]);
+	int		(*cmd)(struct cmd_tbl_s *, int, int, char * const []);
 	char		*usage;		/* Usage message	(short)	*/
 #ifdef	CONFIG_SYS_LONGHELP
 	char		*help;		/* Help  message	(long)	*/
 #endif
 #ifdef CONFIG_AUTO_COMPLETE
 	/* do auto completion on the arguments */
-	int		(*complete)(int argc, char *argv[], char last_char, int maxv, char *cmdv[]);
+	int		(*complete)(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
 #endif
 };
 
@@ -67,7 +67,7 @@ extern cmd_tbl_t  __u_boot_cmd_end;
 
 /* common/command.c */
 int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int
-	      flag, int argc, char *argv[]);
+	      flag, int argc, char * const argv[]);
 cmd_tbl_t *find_cmd(const char *cmd);
 cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len);
 
@@ -83,7 +83,7 @@ extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *
  *
  * All commands use a common argument format:
  *
- * void function (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+ * void function (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
  */
 
 typedef	void	command_t (cmd_tbl_t *, int, int, char *[]);
diff --git a/include/common.h b/include/common.h
index 48f6a1a074..eddec22752 100644
--- a/include/common.h
+++ b/include/common.h
@@ -718,7 +718,7 @@ void show_boot_progress(int val);
 int cpu_status(int nr);
 int cpu_reset(int nr);
 int cpu_disable(int nr);
-int cpu_release(int nr, int argc, char *argv[]);
+int cpu_release(int nr, int argc, char * const argv[]);
 #endif
 
 #endif /* __ASSEMBLY__ */
diff --git a/include/exports.h b/include/exports.h
index 9588bc94e4..1d79a3162c 100644
--- a/include/exports.h
+++ b/include/exports.h
@@ -35,7 +35,7 @@ int i2c_read (uchar, uint, int , uchar* , int);
 #endif
 #include <spi.h>
 
-void app_startup(char **);
+void app_startup(char * const *);
 
 #endif    /* ifndef __ASSEMBLY__ */
 
diff --git a/include/image.h b/include/image.h
index 366b622ccf..bcc08d1a73 100644
--- a/include/image.h
+++ b/include/image.h
@@ -328,12 +328,12 @@ int genimg_get_format (void *img_addr);
 int genimg_has_config (bootm_headers_t *images);
 ulong genimg_get_image (ulong img_addr);
 
-int boot_get_ramdisk (int argc, char *argv[], bootm_headers_t *images,
+int boot_get_ramdisk (int argc, char * const argv[], bootm_headers_t *images,
 		uint8_t arch, ulong *rd_start, ulong *rd_end);
 
 
 #ifdef CONFIG_OF_LIBFDT
-int boot_get_fdt (int flag, int argc, char *argv[], bootm_headers_t *images,
+int boot_get_fdt (int flag, int argc, char * const argv[], bootm_headers_t *images,
 		char **of_flat_tree, ulong *of_size);
 int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
 		char **of_flat_tree, ulong *of_size);
diff --git a/include/kgdb.h b/include/kgdb.h
index f543cd6e18..b6ba742ad3 100644
--- a/include/kgdb.h
+++ b/include/kgdb.h
@@ -55,7 +55,7 @@ extern int kgdb_getregs(struct pt_regs *, char *, int);
 extern void kgdb_putreg(struct pt_regs *, int, char *, int);
 extern void kgdb_putregs(struct pt_regs *, char *, int);
 extern int kgdb_trap(struct pt_regs *);
-extern void kgdb_breakpoint(int argc, char *argv[]);
+extern void kgdb_breakpoint(int argc, char * const argv[]);
 
 /* these functions are provided by the platform serial driver */
 extern void kgdb_serial_init(void);
diff --git a/include/vxworks.h b/include/vxworks.h
index 1633904bd8..917a9ff856 100644
--- a/include/vxworks.h
+++ b/include/vxworks.h
@@ -24,7 +24,7 @@
 #ifndef _VXWORKS_H_
 #define _VXWORKS_H_
 
-int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
 /*
  * Use bootaddr to find the location in memory that VxWorks
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 8c58a93662..aa214dd06f 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -18,7 +18,7 @@
 #if !defined (CONFIG_PANIC_HANG)
 #include <command.h>
 /*cmd_boot.c*/
-extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 #endif
 
 #include <div64.h>