This code adds call to mmc_init(), for partition related commands (e.g.
fatls, fatinfo etc.).
It is safe to call mmc_init() multiple times since mmc->has_init flag
prevents from multiple initialization.
The FAT related code calls get_dev high level method and then uses
elements from mmc->block_dev, which is uninitialized until the mmc_init
(and thereof mmc_startup) is called.
This problem appears on boards, which don't use mmc as the default
place for envs
Signed-off-by: Lukasz Majewski <l.majew...@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.p...@samsung.com>
Cc: Andy Fleming <aflem...@gmail.com>
---
Test HW:
- GONI S5PC110
- Universal C210 (Exynos4)
---
drivers/mmc/mmc.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 618960e..1fa90e7 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1305,8 +1305,12 @@ int mmc_register(struct mmc *mmc)
block_dev_desc_t *mmc_get_dev(int dev)
{
struct mmc *mmc = find_mmc_device(dev);
+ if (mmc) {
+ mmc_init(mmc);
+ return &mmc->block_dev;
+ }
- return mmc ? &mmc->block_dev : NULL;
+ return NULL;
}
#endif
--
1.7.2.3
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