From: Stephen Warren swarren@nvidia.com
Store the environment in eMMC, at the end of the second boot sector. This should not conflict with any other eMMC usage: U-Boot is stored well below this location, and the kernel only uses the general area of the eMMC once booted, not the boot sectors.
Note: This assumes the user plugged the standard 8MB MoviNAND card into J29/HSMMC/POP. If they didn't, the boot sector layout may be different. However, use of that particular card is standard practice as far as I know.
Signed-off-by: Stephen Warren swarren@nvidia.com --- include/configs/whistler.h | 11 +++++++++-- 1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/include/configs/whistler.h b/include/configs/whistler.h index 51f806a..ec96cff 100644 --- a/include/configs/whistler.h +++ b/include/configs/whistler.h @@ -66,8 +66,15 @@ #define CONFIG_CMD_EXT2 #define CONFIG_CMD_FAT
-/* Environment not stored */ -#define CONFIG_ENV_IS_NOWHERE +/* + * Environment in eMMC, at the end of 2nd "boot sector". Note: This assumes + * the user plugged the standard 8MB MoviNAND card into J29/HSMMC/POP. If + * they didn't, the boot sector layout may be different. However, use of that + * particular card is standard practice as far as I know. + */ +#define CONFIG_ENV_IS_IN_MMC +#define CONFIG_ENV_OFFSET ((2 * 512 * 1024) - CONFIG_ENV_SIZE) +#define CONFIG_SYS_MMC_ENV_DEV 0
/* USB Host support */ #define CONFIG_USB_EHCI