The default value of the prescaler of eSDHC clock frequency is 0x80, so we need to mask the MSB to set a different clock, or else it maybe make the behavior of this prescaler undefined.
Signed-off-by: Mingkai Hu Mingkai.hu@freescale.com
include/fsl_esdhc.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/fsl_esdhc.h b/include/fsl_esdhc.h index 89b8304..eac6a2b 100644 --- a/include/fsl_esdhc.h +++ b/include/fsl_esdhc.h @@ -32,7 +32,7 @@ #define SYSCTL 0x0002e02c #define SYSCTL_INITA 0x08000000 #define SYSCTL_TIMEOUT_MASK 0x000f0000 -#define SYSCTL_CLOCK_MASK 0x00000fff +#define SYSCTL_CLOCK_MASK 0x0000fff0 #define SYSCTL_PEREN 0x00000004 #define SYSCTL_HCKEN 0x00000002 #define SYSCTL_IPGEN 0x00000001
The patch is duplicated one from Leo. http://lists.denx.de/pipermail/u-boot/2010-January/066024.html
Thanks, Dave