Thanks. Barnett
:-)
δΊ 2013/10/26 0:28, Ryan Barnett ει:
Haijun Zhang <[email protected]> wrote on 10/24/2013 08:54:42 PM:
struct mmc should be clear to all '0' after malloc to avoid
unexpect variable value.
Like mmc->has_init = xxx.
In this case mmcinfo will believe the card had been initialized before
and skip the initialization.
Test on P5040 and T4240,
Error Log:
=> mmcinfo
Device: FSL_SDHC
Manufacturer ID: 0
OEM: 0
Name: Tran Speed: 0
Rd Block Len: 0
MMC version 0.0
High Capacity: No
Capacity: 0 Bytes
Bus Width: 0-bit
=>
Signed-off-by: Haijun Zhang <[email protected]>
Signed-off-by: Xie Shaohui-B21989 <[email protected]>
Tested-by: Ryan Barnett <[email protected]>
Verified that this patch fixes issues related to booting from eSDHC
interface on the P2041RDB with U-Boot 2013.10.
---
drivers/mmc/fsl_esdhc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index a7170b4..d4c1eef 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -521,6 +521,7 @@ int fsl_esdhc_initialize(bd_t *bis, struct
fsl_esdhc_cfg *cfg)
if (!mmc)
return -ENOMEM;
+ memset(mmc, 0, sizeof(struct mmc));
sprintf(mmc->name, "FSL_SDHC");
regs = (struct fsl_esdhc *)cfg->esdhc_base;
--
1.8.4
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--
Thanks & Regards
Haijun.
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