[U-Boot] [PATCH 2/5] pico-imx6ul: Increase the CONFIG_ENV_OFFSET size
otavio at ossystems.com.br
Thu Sep 12 19:01:51 UTC 2019
From: Fabio Estevam <festevam at gmail.com>
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 at gmail.com>
Signed-off-by: Fabio Berton <fabio.berton at ossystems.com.br>
Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
include/configs/pico-imx6ul.h | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/include/configs/pico-imx6ul.h b/include/configs/pico-imx6ul.h
index 39c83a8c78..2666e7ac52 100644
@@ -134,7 +134,19 @@
/* 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.img offset
+ * CONFIG_BOARD_SIZE_LIMIT = 768k - 69k = 699k = 715776
+ * Currently CONFIG_BOARD_SIZE_LIMIT does not handle expressions, so
+ * write the direct value here
+#define CONFIG_BOARD_SIZE_LIMIT 715776
#define CONFIG_SYS_MMC_ENV_DEV 0
#define CONFIG_SYS_MMC_ENV_PART 0
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