From: Wu, Josh Date: Tue, 24 Mar 2015 09:07:22 +0000 (+0800) Subject: ARM: at91: at91sam9n12ek: save the environment to a fat file in MMC card X-Git-Tag: v2015.04-rc5~1^2~5 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=23ac62d4c72c9be762cb8613b8269599295f7c88;p=oweals%2Fu-boot.git ARM: at91: at91sam9n12ek: save the environment to a fat file in MMC card 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 Acked-by: Bo Shen --- diff --git a/include/configs/at91sam9n12ek.h b/include/configs/at91sam9n12ek.h index f02fce95b3..058e0e43b5 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;" \