U-Boot fails to load read-only variables from storage after a reset. It
happens because the environment hash table prevents creating read-only
variables unless the H_FORCE flag is passed.
In the following example, the variable "test" is set to read-only in the
board header file (#define CONFIG_ENV_FLAGS_LIST_DEFAULT "test:sr"):
U-Boot> printenv .flags
.flags=test:sr
U-Boot> setenv -f test 1
U-Boot> printenv test
test=1
U-Boot> savee
Saving Environment to SPI Flash
...
OK
U-Boot> reset
...
Loading Environment from SPI Flash...
## Error: Can't create "test"
himport_r: can't insert "test=1" into hash table
...
U-Boot> printenv test
## Error: "test" not defined
Pass the H_FORCE flag when importing the environment from storage.
Signed-off-by: Yaniv Levinsky <yaniv.levin...@compulab.co.il>
---
env/common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/env/common.c b/env/common.c
index 3317cef355..de8dd47e9b 100644
--- a/env/common.c
+++ b/env/common.c
@@ -119,7 +119,7 @@ int env_import(const char *buf, int check)
}
}
- if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0, 0,
+ if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', H_FORCE, 0,
0, NULL)) {
gd->flags |= GD_FLG_ENV_READY;
return 0;
--
2.18.0
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