In message 200505020725.j427P98R014633@ismp.csie.ncku.edu.tw you wrote:
I have written hardware-dependent flash functions for my EVB u-boot support. Hence, "saveenv" works and I can see the env data in the configured env sector by "md" command.
However, I still get the warning messages, "*** Warning - bad CRC, using default environment", after press reset button.
This means that U-Boot does not find a valid environment in flash.
Should any CONFIG/CFG need to be added in board configuration file?
Added or fixed - how should we know? We don't know your hardware...
I use u-boot 1.1.2 and the followings are part of board configurations.
/*-----------------------------------------------------------------------
- Physical Memory Map
*/ #define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */ #define PHYS_SDRAM_1 0x00000000 /* SDRAM Bank #1 */ #define PHYS_SDRAM_1_SIZE 0x04000000 /* 64 MB */
You shouldn't do that., You should use auto-sizing instead.
#define CFG_ENV_IS_IN_FLASH 1 #define CFG_ENV_SIZE 0x2000 /* Total Size of Environment Sector */ #define CFG_ENV_SECT_SIZE 0x2000 #define CFG_ENV_OFFSET 0x3F8000 /* environment starts here */ #define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
This looks ok to me. I just wonder why you provide redundant definitions - one of either CFG_ENV_OFFSET or CFG_ENV_ADDR is sufficient.
Best regards,
Wolfgang Denk