On 07/27/2018 06:34 PM, Yaniv Levinsky wrote:
> 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;
>
Gentle ping.
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