From e1caa5841e8a9bc0ee658bdacae0519fa28e1e6a Mon Sep 17 00:00:00 2001 From: York Sun Date: Wed, 7 Feb 2018 14:17:11 -0800 Subject: [PATCH] env: Fix env_load_location 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 CC: Maxime Ripard --- 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 9a89832c1a..edfb575c0e 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 1de67e8e8f..c16ad73864 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 6044b9e1b4..d7037ccd93 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 */ -- 2.39.2