Add Flex-OneNAND booting support

Flex-OneNAND is a monolithic integrated circuit with a NAND Flash array
using a NOR Flash interface. This on-chip integration enables system designers
to reduce external system logic and use high-density NAND Flash
in applications that would otherwise have to use more NOR components.

Flex-OneNAND enables users to configure to partition it into SLC and MLC areas
in more flexible way. While MLC area of Flex-OneNAND can be used to store data
that require low reliability and high density, SLC area of Flex-OneNAND
to store data that need high reliability and high performance. Flex-OneNAND
can let users take advantage of storing these two different types of data
into one chip, which is making Flex-OneNAND more cost- and space-effective.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

diff --git a/Makefile b/Makefile
index 065ce905db36fc395c4a9d20fb614bf60b4a311a..4796f45fc60dc20214a3a3936a7f29363ea62e33 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -339,10 +339,12 @@ $(U_BOOT_NAND):   $(NAND_SPL) $(obj)u-boot.bin $(obj)include/autoconf.mk
                cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
 
 $(ONENAND_IPL):        $(VERSION_FILE) $(obj)include/autoconf.mk
-               $(MAKE) -C onenand_ipl/board/$(BOARDDIR) all
+               $(MAKE) -C $(obj)onenand_ipl/board/$(BOARDDIR) all
 
 $(U_BOOT_ONENAND):     $(ONENAND_IPL) $(obj)u-boot.bin $(obj)include/autoconf.mk
+               $(MAKE) -C $(obj)onenand_ipl/board/$(BOARDDIR) all
                cat $(obj)onenand_ipl/onenand-ipl-2k.bin $(obj)u-boot.bin > $(obj)u-boot-onenand.bin
+               cat $(obj)onenand_ipl/onenand-ipl-4k.bin $(obj)u-boot.bin > $(obj)u-boot-flexonenand.bin
 
 $(VERSION_FILE):
                @( echo -n "#define U_BOOT_VERSION \"U-Boot " ; \
@@ -2873,7 +2875,7 @@ clean:
               $(obj)board/{integratorap,integratorcp}/u-boot.lds         \
               $(obj)board/{bf533-ezkit,bf533-stamp,bf537-stamp,bf561-ezkit}/u-boot.lds
        @rm -f $(obj)include/bmp_logo.h $(obj)nand_spl/{u-boot-spl,u-boot-spl.map}
-       @rm -f $(obj)onenand_ipl/onenand-{ipl,ipl.bin,ipl-2k.bin,ipl.map}
+       @rm -f $(obj)onenand_ipl/onenand-{ipl,ipl.bin,ipl-2k.bin,ipl-4k.bin,ipl.map}
        @rm -f $(obj)api_examples/demo $(VERSION_FILE)
        @find $(OBJTREE) -type f \
                \( -name 'core' -o -name '*.bak' -o -name '*~' \

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index d4003a20f205f9a80a50caf0387ca19e56ed5fb2..3b828fb62729034c8f6f5de06ed146dc1f487224 100644 (file)
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1180,6 +1180,12 @@ static int onenand_probe(struct mtd_info *mtd)
        if (maf_id != bram_maf_id || dev_id != bram_dev_id)
                return -ENXIO;
 
+       /* FIXME : Current OneNAND MTD doesn't support Flex-OneNAND */
+       if (dev_id & (1 << 9)) {
+               printk("Not yet support Flex-OneNAND\n");
+               return -ENXIO;
+       }
+
        /* Flash device information */
        onenand_print_device_info(dev_id, 0);
        this->device_id = dev_id;

diff --git a/onenand_ipl/board/apollon/Makefile b/onenand_ipl/board/apollon/Makefile
index 66a0959ee275eb30ab4e416ef2546b8f8785d390..f10ed02292ab83290437676bf9310105b5f44eb5 100644 (file)
--- a/onenand_ipl/board/apollon/Makefile
+++ b/onenand_ipl/board/apollon/Makefile
@@ -9,7 +9,7 @@ AFLAGS  += -DCONFIG_ONENAND_IPL
 CFLAGS += -DCONFIG_ONENAND_IPL
 OBJCLFAGS += --gap-fill=0x00
 
-SOBJS  = start.o low_levelinit.o # _memcpy32.o
+SOBJS  = start.o low_levelinit.o
 COBJS  = apollon.o onenand_read.o onenand_boot.o
 
 SRCS   := $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c))
@@ -19,13 +19,16 @@ LNDIR       := $(OBJTREE)/onenand_ipl/board/$(BOARDDIR)
 
 onenandobj     := $(OBJTREE)/onenand_ipl/
 
-ALL    = $(onenandobj)onenand-ipl $(onenandobj)onenand-ipl.bin $(onenandobj)onenand-ipl-2k.bin
+ALL    = $(onenandobj)onenand-ipl $(onenandobj)onenand-ipl.bin $(onenandobj)onenand-ipl-2k.bin $(onenandobj)onenand-ipl-4k.bin
 
 all:   $(obj).depend $(ALL)
 
 $(onenandobj)onenand-ipl-2k.bin:       $(onenandobj)onenand-ipl
        $(OBJCOPY) ${OBJCFLAGS} --pad-to=0x800 -O binary $< $@
 
+$(onenandobj)onenand-ipl-4k.bin:       $(onenandobj)onenand-ipl
+       $(OBJCOPY) ${OBJCFLAGS} --pad-to=0x1000 -O binary $< $@
+
 $(onenandobj)onenand-ipl.bin:  $(onenandobj)onenand-ipl
        $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
 

diff --git a/onenand_ipl/onenand_boot.c b/onenand_ipl/onenand_boot.c
index f30deaeca7d3cd5f3e3fef067e994f57a5208f57..35668ac84f765f50f165849eb1abd5e8a5511f36 100644 (file)
--- a/onenand_ipl/onenand_boot.c
+++ b/onenand_ipl/onenand_boot.c
@@ -60,7 +60,7 @@ void start_oneboot(void)
 
        buf = (uchar *) CFG_LOAD_ADDR;
 
-       if (!onenand_read_block(buf, ONENAND_START_BLOCK))
+       if (!onenand_read_block0(buf))
                buf += ONENAND_BLOCK_SIZE;
 
        if (buf == (uchar *)CFG_LOAD_ADDR)

diff --git a/onenand_ipl/onenand_ipl.h b/onenand_ipl/onenand_ipl.h
index b9c6669a7b3c374cbd412305b8a8afb1e1a8f72e..9188b96625dca9bad0112d40a8c5579637da8514 100644 (file)
--- a/onenand_ipl/onenand_ipl.h
+++ b/onenand_ipl/onenand_ipl.h
@@ -23,7 +23,6 @@
 
 #include <linux/mtd/onenand_regs.h>
 
-#define ONENAND_START_BLOCK             0
 #define ONENAND_BLOCK_SIZE              2048
 
 #ifndef CFG_PRINTF
@@ -40,5 +39,5 @@
 
 #define ONENAND_PAGE_SIZE                       2048
 
-extern int onenand_read_block(unsigned char *buf, ulong block);
+extern int onenand_read_block0(unsigned char *buf);
 #endif

diff --git a/onenand_ipl/onenand_read.c b/onenand_ipl/onenand_read.c
index f553220237604efcf6baf80fffd53ff4b46b68e8..669b1ef5fa63acff6322d681e4696394a6f42130 100644 (file)
--- a/onenand_ipl/onenand_read.c
+++ b/onenand_ipl/onenand_read.c
@@ -33,8 +33,13 @@
 #define onenand_buffer_address()               ((1 << 3) << 8)
 #define onenand_bufferram_address(block)       (0)
 
+#ifdef __HAVE_ARCH_MEMCPY32
+extern void *memcpy32(void *dest, void *src, int size);
+#endif
+
 /* read a page with ECC */
-static inline int onenand_read_page(ulong block, ulong page, u_char *buf)
+static inline int onenand_read_page(ulong block, ulong page,
+                               u_char * buf, int pagesize)
 {
        unsigned long *base;
 
@@ -46,15 +51,15 @@ static inline int onenand_read_page(ulong block, ulong page, u_char *buf)
        onenand_writew(onenand_block_address(block),
                THIS_ONENAND(ONENAND_REG_START_ADDRESS1));
 
+       onenand_writew(onenand_bufferram_address(block),
+               THIS_ONENAND(ONENAND_REG_START_ADDRESS2));
+
        onenand_writew(onenand_sector_address(page),
                THIS_ONENAND(ONENAND_REG_START_ADDRESS8));
 
        onenand_writew(onenand_buffer_address(),
                THIS_ONENAND(ONENAND_REG_START_BUFFER));
 
-       onenand_writew(onenand_bufferram_address(block),
-               THIS_ONENAND(ONENAND_REG_START_ADDRESS2));
-
        onenand_writew(ONENAND_INT_CLEAR, THIS_ONENAND(ONENAND_REG_INTERRUPT));
 
        onenand_writew(ONENAND_CMD_READ, THIS_ONENAND(ONENAND_REG_COMMAND));
@@ -69,9 +74,9 @@ static inline int onenand_read_page(ulong block, ulong page, u_char *buf)
 
 #ifdef __HAVE_ARCH_MEMCPY32
        /* 32 bytes boundary memory copy */
-       memcpy32(buf, base, ONENAND_PAGE_SIZE);
+       memcpy32(buf, base, pagesize);
 #else
-       for (offset = 0; offset < (ONENAND_PAGE_SIZE >> 2); offset++) {
+       for (offset = 0; offset < (pagesize >> 2); offset++) {
                value = *(base + offset);
                *p++ = value;
        }
@@ -87,18 +92,22 @@ static inline int onenand_read_page(ulong block, ulong page, u_char *buf)
  * onenand_read_block - Read a block data to buf
  * @return 0 on success
  */
-int onenand_read_block(unsigned char *buf, ulong block)
+int onenand_read_block0(unsigned char *buf)
 {
        int page, offset = 0;
+       int pagesize = ONENAND_PAGE_SIZE;
+
+       /* MLC OneNAND has 4KiB page size */
+       if (onenand_readw(THIS_ONENAND(ONENAND_REG_TECHNOLOGY)))
+               pagesize <<= 1;
 
        /* NOTE: you must read page from page 1 of block 0 */
        /* read the block page by page*/
        for (page = ONENAND_START_PAGE;
            page < ONENAND_PAGES_PER_BLOCK; page++) {
 
-               onenand_read_page(block, page, buf + offset);
-
-               offset += ONENAND_PAGE_SIZE;
+               onenand_read_page(0, page, buf + offset, pagesize);
+               offset += pagesize;
        }
 
        return 0;