From 340ccb260f21516be360745d5c5e3bd0657698df Mon Sep 17 00:00:00 2001 From: Sebastian Siewior Date: Wed, 16 Jul 2008 20:04:49 +0200 Subject: [PATCH] cfi_flash: fix flash on BE machines with CFG_WRITE_SWAPPED_DATA This got broken by commits 93c56f212c [cfi_flash: support of long cmd in U-boot.] That command needs to be in little endian format on BE machines with CFG_WRITE_SWAPPED_DATA. Without this patch, the command 0xf0 gets saved on stack as 0x00 00 00 f0 and 0x00 gets written into the cmdbuf in case portwidth = chipwidth = 8bit. Cc: Alexey Korolev Cc: Vasiliy Leonenko Signed-off-by: Sebastian Siewior --- drivers/mtd/cfi_flash.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index 4340b1b..12647ef 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -306,6 +306,9 @@ static void flash_make_cmd(flash_info_t *info, u32 cmd, void *cmdbuf) int i; int cword_offset; int cp_offset; +#if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA) + u32 cmd_le = cpu_to_le32(cmd); +#endif uchar val; uchar *cp = (uchar *) cmdbuf; @@ -313,7 +316,7 @@ static void flash_make_cmd(flash_info_t *info, u32 cmd, void *cmdbuf) cword_offset = (info->portwidth-i)%info->chipwidth; #if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA) cp_offset = info->portwidth - i; - val = *((uchar*)&cmd + cword_offset); + val = *((uchar*)&cmd_le + cword_offset); #else cp_offset = i - 1; val = *((uchar*)&cmd + sizeof(u32) - cword_offset - 1);