Commit 7d714a24d725 ("env: Support multiple environments") added static variable env_load_location. When saving environmental variables, this variable is presumed to have the value set before. In case the value was set before relocation and U-Boot runs from a NOR flash, this variable wasn't writable. This causes failure when saving the environment. To save this location, global data must be used instead.
Signed-off-by: York Sun york.sun@nxp.com CC: Maxime Ripard maxime.ripard@free-electrons.com --- Limited test on LS1043ARDB.
env/env.c | 8 +++----- include/asm-generic/global_data.h | 1 + include/environment.h | 2 +- 3 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/env/env.c b/env/env.c index 9a89832..edfb575 100644 --- a/env/env.c +++ b/env/env.c @@ -62,8 +62,6 @@ static enum env_location env_locations[] = { #endif };
-static enum env_location env_load_location = ENVL_UNKNOWN; - static bool env_has_inited(enum env_location location) { return gd->env_has_init & BIT(location); @@ -108,11 +106,11 @@ __weak enum env_location env_get_location(enum env_operation op, int prio) if (prio >= ARRAY_SIZE(env_locations)) return ENVL_UNKNOWN;
- env_load_location = env_locations[prio]; - return env_load_location; + gd->env_load_location = env_locations[prio]; + return gd->env_load_location;
case ENVOP_SAVE: - return env_load_location; + return gd->env_load_location; }
return ENVL_UNKNOWN; diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h index fd8cd45..10f1441 100644 --- a/include/asm-generic/global_data.h +++ b/include/asm-generic/global_data.h @@ -51,6 +51,7 @@ typedef struct global_data { unsigned long env_addr; /* Address of Environment struct */ unsigned long env_valid; /* Environment valid? enum env_valid */ unsigned long env_has_init; /* Bitmask of boolean of struct env_location offsets */ + int env_load_location;
unsigned long ram_top; /* Top address of RAM used by U-Boot */ unsigned long relocaddr; /* Start address of U-Boot in RAM */ diff --git a/include/environment.h b/include/environment.h index a406050..0f339da 100644 --- a/include/environment.h +++ b/include/environment.h @@ -188,6 +188,7 @@ enum env_valid { };
enum env_location { + ENVL_UNKNOWN, ENVL_EEPROM, ENVL_EXT4, ENVL_FAT, @@ -202,7 +203,6 @@ enum env_location { ENVL_NOWHERE,
ENVL_COUNT, - ENVL_UNKNOWN, };
/* value for the various operations we want to perform on the env */