Haijun Zhang Haijun.Zhang@freescale.com 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 Haijun.Zhang@freescale.com Signed-off-by: Xie Shaohui-B21989 B21989@freescale.com
Tested-by: Ryan Barnett rjbarnet@rockwellcollins.com
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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