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env: sf: Add support for env init for QSPI-NOR

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ENV variables can now be used before relocation.

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This commit is contained in:
Ashish Kumar 2017-12-14 17:37:08 +05:30 committed by York Sun
parent 134200a5ef
commit b500c92b70
1 changed files with 21 additions and 0 deletions
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21
env/sf.c vendored
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@ -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
};