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CFI: Fix AMD Legacy sector protect 

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 =