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authorTom Rini <trini@ti.com>2014-03-28 12:03:34 -0400
committerTom Rini <trini@ti.com>2014-04-17 14:39:54 -0400
commitb9c8ccaba77b24f7a1b4756a927f19dccf895954 (patch)
treec25545a3fa36c38269c10dcd08b923d0c135bdf2 /common/env_mmc.c
parent229695fee97abc7f4adad92eb8e036792c144bc6 (diff)
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env_mmc.c: Allow environment to be used within SPL
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>
Diffstat (limited to 'common/env_mmc.c')
-rw-r--r--common/env_mmc.c45
1 files changed, 37 insertions, 8 deletions
diff --git a/common/env_mmc.c b/common/env_mmc.c
index 045428c..d42168b 100644
--- a/common/env_mmc.c
+++ b/common/env_mmc.c
@@ -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;