U-Boot binary has grown in such a way that it goes beyond the reserved area for the environment variables.
Running "saveenv" followed by a "reset" causes U-Boot to hang because of this overlap.
Fix this problem by increasing the CONFIG_ENV_OFFSET size.
Also, in order to prevent this same problem in the future, use CONFIG_BOARD_SIZE_LIMIT, which will detect the overlap in build-time.
CONFIG_BOARD_SIZE_LIMIT does not accept math expressions, so declare CONFIG_ENV_OFFSET with its direct value instead.
Signed-off-by: Fabio Estevam festevam@gmail.com --- include/configs/warp7.h | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/include/configs/warp7.h b/include/configs/warp7.h index 73541fe176..d103567cf4 100644 --- a/include/configs/warp7.h +++ b/include/configs/warp7.h @@ -132,7 +132,18 @@ /* environment organization */ #define CONFIG_ENV_SIZE SZ_8K
-#define CONFIG_ENV_OFFSET (8 * SZ_64K) +/* Environment starts at 768k = 768 * 1024 = 786432 */ +#define CONFIG_ENV_OFFSET 786432 +/* + * Detect overlap between U-Boot image and environment area in build-time + * + * CONFIG_BOARD_SIZE_LIMIT = CONFIG_ENV_OFFSET - u-boot-dtb.imx offset + * CONFIG_BOARD_SIZE_LIMIT = 768k - 1k = 767k = 785408 + * + * Currently CONFIG_BOARD_SIZE_LIMIT does not handle expressions, so + * write the direct value here + */ +#define CONFIG_BOARD_SIZE_LIMIT 785408 #define CONFIG_SYS_FSL_USDHC_NUM 1
#define CONFIG_SYS_MMC_ENV_DEV 0