From: Fabio Estevam festevam@denx.de
U-Boot binary has grown in such a way that it goes beyond the reserved area for the environment variables.
Running "saveenv" and rebooting the board causes U-Boot to hang because of this overlap.
Fix this problem by selecting CONFIG_LTO so that the U-Boot proper size can be reduced.
Also, to prevent this same problem to happen in the future, use CONFIG_BOARD_SIZE_LIMIT, which can detect the overlap in build-time.
CONFIG_BOARD_SIZE_LIMIT is calculated as follows:
CONFIG_BOARD_SIZE_LIMIT = CONFIG_ENV_OFFSET - u-boot-img.dtb offset CONFIG_BOARD_SIZE_LIMIT = 0xc000 - 69 * 1024 CONFIG_BOARD_SIZE_LIMIT = 715766
Signed-off-by: Fabio Estevam festevam@denx.de --- Changes since v1: - Select LTO. (Tom)
configs/mx6sabresd_defconfig | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/configs/mx6sabresd_defconfig b/configs/mx6sabresd_defconfig index a90efe4a7786..d4fb55622cf1 100644 --- a/configs/mx6sabresd_defconfig +++ b/configs/mx6sabresd_defconfig @@ -21,6 +21,9 @@ CONFIG_SPL_SERIAL=y CONFIG_SPL=y CONFIG_SPL_LIBDISK_SUPPORT=y CONFIG_PCI=y +CONFIG_LTO=y +CONFIG_HAS_BOARD_SIZE_LIMIT=y +CONFIG_BOARD_SIZE_LIMIT=715766 CONFIG_FIT=y CONFIG_SPL_FIT_PRINT=y CONFIG_SPL_LOAD_FIT=y