Re: [U-Boot] [PATCH 1/2] FSL/eSDHC: enable the peripheral clock to detect the card

[Dirk Behme]

On 27.03.2012 12:25, chang-ming.hu...@freescale.com wrote:
From: Jerry Huang <chang-ming.hu...@freescale.com>
According to the card detection of p1/p2 paltform RM,

typo => platform

we should set SYSCTL[PEREN] to enable the clock.
Otherwise, after booting the u-boot, and then inserting the SD card,
the SD card can't be detected.

Signed-off-by: Jerry Huang <chang-ming.hu...@freescale.com>
CC: Andy Fleming <aflem...@gmail.com>
---
 drivers/mmc/fsl_esdhc.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index a2f35e3..1682a79 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -491,6 +491,8 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg 
*cfg)
        /* First reset the eSDHC controller */
        esdhc_reset(regs);
 
+	esdhc_write32(&regs->sysctl, SYSCTL_PEREN);

If I read the iMX6 manual correctly, the SYSCTL_PEREN isn't implemented 
there. So this should be a NOP for iMX6?

Best regards

Dirk
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