lmb: Remove imx board_lmb_reserve()

This function is clearly architecture specific code, not board specific
code. The only difference from the previous arm arch_lmb_reserve() is the
extra reservation of 16k of memory below the stack bottom, rather than
the 4k. The common code now also uses 16k alignment. Remove this custom
implementation, as it now behaves exactly as the common code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Ye Li <ye.li@nxp.com>

diff --git a/arch/arm/mach-imx/misc.c b/arch/arm/mach-imx/misc.c
index d82efa7f8f0a34da5b5e4e0266e791549cf01698..09a758ff6e893286ae388b2450fc0a0529e0d962 100644 (file)
--- a/arch/arm/mach-imx/misc.c
+++ b/arch/arm/mach-imx/misc.c
@@ -77,33 +77,3 @@ int mxs_reset_block(struct mxs_register_32 *reg)
 
        return 0;
 }
-
-static ulong get_sp(void)
-{
-       ulong ret;
-
-       asm("mov %0, sp" : "=r"(ret) : );
-       return ret;
-}
-
-void board_lmb_reserve(struct lmb *lmb)
-{
-       ulong sp, bank_end;
-       int bank;
-
-       sp = get_sp();
-       debug("## Current stack ends at 0x%08lx ", sp);
-
-       /* adjust sp by 16K to be safe */
-       sp -= 4096 << 2;
-       for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
-               if (sp < gd->bd->bi_dram[bank].start)
-                       continue;
-               bank_end = gd->bd->bi_dram[bank].start +
-                       gd->bd->bi_dram[bank].size;
-               if (sp >= bank_end)
-                       continue;
-               lmb_reserve(lmb, sp, bank_end - sp);
-               break;
-       }
-}