From b500c92b70e8e103ca75f95e4b0e97d92dddf185 Mon Sep 17 00:00:00 2001 From: Ashish Kumar Date: Thu, 14 Dec 2017 17:37:08 +0530 Subject: env: sf: Add support for env init for QSPI-NOR ENV variables can now be used before relocation. Signed-off-by: Ashish Kumar Reviewed-by: York Sun --- env/sf.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'env') diff --git a/env/sf.c b/env/sf.c index e51b1ae..a2e4c93 100644 --- a/env/sf.c +++ b/env/sf.c @@ -34,6 +34,7 @@ #ifndef CONFIG_SPL_BUILD #define CMD_SAVEENV +#define INITENV #endif #ifdef CONFIG_ENV_OFFSET_REDUND @@ -348,6 +349,23 @@ out: } #endif +#if defined(INITENV) && defined(CONFIG_ENV_ADDR) +static int env_sf_init(void) +{ + env_t *env_ptr = (env_t *)(CONFIG_ENV_ADDR); + + if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { + gd->env_addr = (ulong)&(env_ptr->data); + gd->env_valid = 1; + } else { + gd->env_addr = (ulong)&default_environment[0]; + gd->env_valid = 1; + } + + return 0; +} +#endif + U_BOOT_ENV_LOCATION(sf) = { .location = ENVL_SPI_FLASH, ENV_NAME("SPI Flash") @@ -355,4 +373,7 @@ U_BOOT_ENV_LOCATION(sf) = { #ifdef CMD_SAVEENV .save = env_save_ptr(env_sf_save), #endif +#if defined(INITENV) && defined(CONFIG_ENV_ADDR) + .init = env_sf_init, +#endif }; -- cgit v1.1