Hi Josh,
On 03/24/2015 05:07 PM, Josh Wu wrote:
Insteading in mmc's raw sectors, this patch will save the environment in a fat file (uboot.env) in mmc card's first FAT patition by default.
If you want to save in mmc's raw sectors, you only need to define CONFIG_ENV_IS_IN_MMC.
Signed-off-by: Josh Wu josh.wu@atmel.com
Thanks for your patch. I think this one is better than v1.
Acked-by: Bo Shen voice.shen@atmel.com
Changes in v2:
not remove the code to save env in mmc's raw sectors.
we can define CONFIG_ENV_IS_IN_MMC to enable raw sectors saving.
include/configs/at91sam9n12ek.h | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/include/configs/at91sam9n12ek.h b/include/configs/at91sam9n12ek.h index f02fce9..058e0e4 100644 --- a/include/configs/at91sam9n12ek.h +++ b/include/configs/at91sam9n12ek.h @@ -201,11 +201,22 @@ #else /* CONFIG_SYS_USE_MMC */
/* bootstrap + u-boot + env + linux in mmc */ -#define CONFIG_ENV_IS_IN_MMC -/* For FAT system, most cases it should be in the reserved sector */
+#ifdef CONFIG_ENV_IS_IN_MMC +/* Use raw reserved sectors to save environment */ #define CONFIG_ENV_OFFSET 0x2000 #define CONFIG_ENV_SIZE 0x1000 #define CONFIG_SYS_MMC_ENV_DEV 0 +#else +/* Use file in FAT file to save environment */ +#define CONFIG_ENV_IS_IN_FAT +#define CONFIG_FAT_WRITE +#define FAT_ENV_INTERFACE "mmc" +#define FAT_ENV_FILE "uboot.env" +#define FAT_ENV_DEVICE_AND_PART "0" +#define CONFIG_ENV_SIZE 0x4000 +#endif
- #define CONFIG_BOOTCOMMAND \ "setenv bootargs ${console} ${mtdparts} ${bootargs_mmc};" \ "fatload mmc 0:1 0x21000000 dtb;" \
Best Regards, Bo Shen