#34 mmc card fails to run fatls on bf537 stamp

[panmingquan]

mmc card fails to run fatls on bf537 stamp on master head.

STEP 43: Test MMC/SD

mmc_spi 4
MMC_SPI: 0 at 0:4 hz 25000000 mode 0
bfin> mmcinfo
Device: MMC_SPI
Manufacturer ID: 1b
OEM: 534d
Name: 00000
Tran Speed: 25000000
Rd Block Len: 512
SD version 2.0
High Capacity: No
Capacity: 1.9 GiB
Bus Width: 1-bit
bfin> fatls mmc 0
mmc fail to send stop cmd
4041012 uimage

1 file(s), 0 dir(s)

bfin> fatload mmc 0 0x1000000 uimage
reading uimage
mmc fail to send stop cmERROR: load uimage to memory failed
Attempting to recover to u-boot prompt
d
mmc fail to send stop cmd
mmc fail to send stop cmd
Error reading cluster
** Unable to read file uimage **
bfin> got u-boot prompt
INTERRUPT>
bfin> versionRecovered

===== Recording result: mmc is fail