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env_mmc.c: Allow environment to be used within SPL

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Inside of SPL we only concern ourself with one MMC device, so instead of
being able to use CONFIG_SYS_MMC_ENV_DEV we need to use 0 in SPL.
Switch the code to use a 'dev' variable to facilitate this.

Signed-off-by: Tom Rini <trini@ti.com>
This commit is contained in:
Tom Rini 2014-03-28 12:03:34 -04:00
parent 229695fee9
commit b9c8ccaba7
1 changed files with 37 additions and 8 deletions
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45
common/env_mmc.c
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@ -64,6 +64,14 @@ int env_init(void)
static int init_mmc_for_env(struct mmc *mmc)
{
#ifdef CONFIG_SYS_MMC_ENV_PART
int dev = CONFIG_SYS_MMC_ENV_DEV;
#ifdef CONFIG_SPL_BUILD
dev = 0;
#endif
#endif
if (!mmc) {
puts("No MMC card found\n");
return -1;
@ -76,8 +84,7 @@ static int init_mmc_for_env(struct mmc *mmc)
#ifdef CONFIG_SYS_MMC_ENV_PART
if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) {
if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV,
CONFIG_SYS_MMC_ENV_PART)) {
if (mmc_switch_part(dev, CONFIG_SYS_MMC_ENV_PART)) {
puts("MMC partition switch failed\n");
return -1;
}
@ -90,9 +97,13 @@ static int init_mmc_for_env(struct mmc *mmc)
static void fini_mmc_for_env(struct mmc *mmc)
{
#ifdef CONFIG_SYS_MMC_ENV_PART
int dev = CONFIG_SYS_MMC_ENV_DEV;
#ifdef CONFIG_SPL_BUILD
dev = 0;
#endif
if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num)
mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV,
mmc->part_num);
mmc_switch_part(dev, mmc->part_num);
#endif
}
@ -174,12 +185,16 @@ static inline int read_env(struct mmc *mmc, unsigned long size,
unsigned long offset, const void *buffer)
{
uint blk_start, blk_cnt, n;
int dev = CONFIG_SYS_MMC_ENV_DEV;
#ifdef CONFIG_SPL_BUILD
dev = 0;
#endif
blk_start = ALIGN(offset, mmc->read_bl_len) / mmc->read_bl_len;
blk_cnt = ALIGN(size, mmc->read_bl_len) / mmc->read_bl_len;
n = mmc->block_dev.block_read(CONFIG_SYS_MMC_ENV_DEV, blk_start,
blk_cnt, (uchar *)buffer);
n = mmc->block_dev.block_read(dev, blk_start, blk_cnt, (uchar *)buffer);
return (n == blk_cnt) ? 0 : -1;
}
@ -188,16 +203,23 @@ static inline int read_env(struct mmc *mmc, unsigned long size,
void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
struct mmc *mmc;
u32 offset1, offset2;
int read1_fail = 0, read2_fail = 0;
int crc1_ok = 0, crc2_ok = 0;
env_t *ep;
int ret;
int dev = CONFIG_SYS_MMC_ENV_DEV;
ALLOC_CACHE_ALIGN_BUFFER(env_t, tmp_env1, 1);
ALLOC_CACHE_ALIGN_BUFFER(env_t, tmp_env2, 1);
#ifdef CONFIG_SPL_BUILD
dev = 0;
#endif
mmc = find_mmc_device(dev);
if (tmp_env1 == NULL || tmp_env2 == NULL) {
puts("Can't allocate buffers for environment\n");
ret = 1;
@ -274,9 +296,16 @@ void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
struct mmc *mmc;
u32 offset;
int ret;
int dev = CONFIG_SYS_MMC_ENV_DEV;
#ifdef CONFIG_SPL_BUILD
dev = 0;
#endif
mmc = find_mmc_device(dev);
if (init_mmc_for_env(mmc)) {
ret = 1;