After kernel upgrade, the MMC cards works normally.
$dmesg
[ 226.680865] mmc0: card 0001 removed
[ 286.683739] mmc0: new high speed MMC card at address 0001
[ 286.683902] mmcblk0: mmc0:0001 AF HMP 245 MiB
[ 286.684659] mmcblk0: p1
[ 286.900332] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
After kernel upgrade, the MMC cards works normally.
$dmesg
[ 226.680865] mmc0: card 0001 removed
[ 286.683739] mmc0: new high speed MMC card at address 0001
[ 286.683902] mmcblk0: mmc0:0001 AF HMP 245 MiB
[ 286.684659] mmcblk0: p1
[ 286.900332] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.