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Make flash protection work, when the environment is in EEPROM 

On the pcm030 the environment is located in the onboard EEPROM. But we want
to handle flash sector protection in a safe manner. So we must read the
unlock environment variable from EEPROM instead from flash.

This patch is required as long the evironment is saved into the EEPROM.

Stefan: Additional change as suggested by Wolfgang, use bigger char array
(instead of 4).

Signed-off-by: Eric Schumann <E.Schumann@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Eric Schumann 2009-03-21 09:59:34 -04:00 committed by Stefan Roese
parent ee1702d75a
commit 3a3baf3ee6
1 changed files with 3 additions and 1 deletions
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4
drivers/mtd/cfi_flash.c
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@ -2009,7 +2009,9 @@ unsigned long flash_init (void)
#endif
#ifdef CONFIG_SYS_FLASH_PROTECTION
char *s = getenv("unlock");
/* read environment from EEPROM */
char s[64];
getenv_r ("unlock", s, sizeof(s));
#endif
#define BANK_BASE(i) (((phys_addr_t [CFI_MAX_FLASH_BANKS])CONFIG_SYS_FLASH_BANKS_LIST)[i])