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mx53loco: Fix U-Boot corruption after saving the environment 

U-Boot binary has grown in such a way that it goes beyond the reserved
area for the environment variables.

Running "saveenv" 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>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
This commit is contained in:
Fabio Estevam 2019-08-30 13:58:29 -03:00 committed by Otavio Salvador
parent ca0ab15271
commit 4513617ad6
1 changed files with 12 additions and 2 deletions
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14
include/configs/mx53loco.h
View File

@ -163,8 +163,18 @@
#define CONFIG_SYS_INIT_SP_ADDR \
(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
/* environment organization */
#define CONFIG_ENV_OFFSET (6 * 64 * 1024)
/* 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.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_ENV_SIZE (8 * 1024)
#define CONFIG_SYS_MMC_ENV_DEV 0