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CFI: Fix AMD Legacy sector protect

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New implement sector lock and unlock or softlock commands
do not exist in AMD legacy flash. Thus, causing issue
when erasing AMD legacy flash (such as lv040)

Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
TsiChung Liew 2008-08-19 16:53:39 +00:00 • committed by Stefan Roese
parent fcd69a1a57
commit 4e00acded2
1 changed files with 9 additions and 3 deletions
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12
drivers/mtd/cfi_flash.c
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@ -1369,9 +1369,6 @@ int flash_real_protect (flash_info_t * info, long sector, int prot)
break;
case CFI_CMDSET_AMD_EXTENDED:
case CFI_CMDSET_AMD_STANDARD:
#ifdef CONFIG_FLASH_CFI_LEGACY
case CFI_CMDSET_AMD_LEGACY:
#endif
/* U-Boot only checks the first byte */
if (info->manufacturer_id == (uchar)ATM_MANUFACT) {
if (prot) {
@ -1392,6 +1389,15 @@ int flash_real_protect (flash_info_t * info, long sector, int prot)
}
}
break;
#ifdef CONFIG_FLASH_CFI_LEGACY
case CFI_CMDSET_AMD_LEGACY:
flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
if (prot)
flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET);
else
flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
#endif
};
if ((retcode =