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env_mmc: Fix crashing bug encountered after enabling ARM relocation

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The crash was occuring in env_relocate because it was being called prior
to mmc_initialize.  This patch moves the MMC initialization earlier in
the init process.

This patch also cleans up the env_relocate_spec code in env_mmc.c

Signed-off-by: Steve Sakoman <steve.sakoman@linaro.org>
Acked-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Steve Sakoman 2010-10-11 05:51:39 -07:00 • committed by Wolfgang Denk
parent e1b4c57096
commit d470a6f60a
2 changed files with 15 additions and 12 deletions
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10
arch/arm/lib/board.c
View file

@ -770,6 +770,11 @@ void board_init_r (gd_t *id, ulong dest_addr)
onenand_init();
#endif
#ifdef CONFIG_GENERIC_MMC
puts("MMC: ");
mmc_initialize(bd);
#endif
#ifdef CONFIG_HAS_DATAFLASH
AT91F_DataflashInit();
dataflash_print_info();
@ -835,11 +840,6 @@ void board_init_r (gd_t *id, ulong dest_addr)
board_late_init ();
#endif
#ifdef CONFIG_GENERIC_MMC
puts ("MMC: ");
mmc_initialize (gd->bd);
#endif
#ifdef CONFIG_BITBANGMII
bb_miiphy_init();
#endif

17
common/env_mmc.c
View file

@ -129,18 +129,21 @@ inline int read_env(struct mmc *mmc, unsigned long size,
void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
char buf[CONFIG_ENV_SIZE];
struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
if (init_mmc_for_env(mmc))
if (init_mmc_for_env(mmc)) {
use_default();
return;
}
if (read_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, env_ptr))
return use_default();
if (read_env(mmc, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, buf)) {
use_default();
return;
}
if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc)
return use_default();
gd->env_valid = 1;
env_import(buf, 1);
#endif
}