We set ENV_FAT_DEVICE_AND_PART to "0". That specify the device number and not specify the partition number. So when 1. no partition table: take device 0 as a FAT file system. 2. has parttion table: use device 0 partition 1.
For more details, please refer to the commit: 10a37fd7a4
Signed-off-by: Josh Wu josh.wu@atmel.com --- include/configs/sama5d3_xplained.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/include/configs/sama5d3_xplained.h b/include/configs/sama5d3_xplained.h index 75c3be6..f9e9010 100644 --- a/include/configs/sama5d3_xplained.h +++ b/include/configs/sama5d3_xplained.h @@ -126,13 +126,15 @@ "bootz 0x22000000 - 0x21000000" #elif CONFIG_SYS_USE_MMC /* bootstrap + u-boot + env in sd card */ -#define CONFIG_ENV_IS_IN_MMC -#define CONFIG_ENV_OFFSET 0x2000 -#define CONFIG_ENV_SIZE 0x1000 +#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 #define CONFIG_BOOTCOMMAND "fatload mmc 0:1 0x21000000 at91-sama5d3_xplained.dtb; " \ "fatload mmc 0:1 0x22000000 zImage; " \ "bootz 0x22000000 - 0x21000000" -#define CONFIG_SYS_MMC_ENV_DEV 0 #else #define CONFIG_ENV_IS_NOWHERE #endif