s3c2410上MMC的错误 帮忙看看 谢谢

vitoUNIX

mmci-s3c2410: mrq->cmd->resp[0]: 0x00000900
mmci-s3c2410: mrq->cmd->resp[1]: 0x675a83d5
mmci-s3c2410: mrq->cmd->resp[2]: 0xfefbff80
mmci-s3c2410: mrq->cmd->resp[3]: 0x168000cf
mmci-s3c2410: flushing DMA.
mmcblk0: error 2 transferring data
end_request: I/O error, dev mmcblk0, sector 0
FAT: unable to read boot sector
<7>mmci-s3c2410: request: [CMD] opcode:0x17 arg:0x00000000 flags:9 retries:0
mmci-s3c2410: request : sd mode
mmci-s3c2410: request: [DAT] bsize:1024 blocks:1 bytes:1024
mmci-s3c2410: dma_len: 0x00000001
mmci-s3c2410: IRQ csta=0x00000911 dsta=0x00000001 dcnt:0x00001000
mmci-s3c2410: DMAD csta=0x00000a11 dsta=0x00000050 dcnt:0x00000000 result:0x00000000
mmci-s3c2410: IRQ transfer closed.
mmci-s3c2410: IRQ csta=0x00000011 dsta=0x00000050 dcnt:0x00000000
mmci-s3c2410: IRQ clear imask.
mmci-s3c2410: IRQ csta=0x00000011 dsta=0x00000050 dcnt:0x00000000
mmci-s3c2410: IRQ clear imask.
[CMD] request complete.
[DAT] DMA complete.
mmci-s3c2410: mrq->cmd->resp[0]: 0x00000900
mmci-s3c2410: mrq->cmd->resp[1]: 0x675a83d5
mmci-s3c2410: mrq->cmd->resp[2]: 0xfefbff80
mmci-s3c2410: mrq->cmd->resp[3]: 0x168000cf
mmci-s3c2410: flushing DMA.
mmcblk0: error 2 transferring data
end_request: I/O error, dev mmcblk0, sector 0
romfs: unable to read superblock
mount: Mounting /dev/mmc/blk0/disc on /tmp failed: Invalid argument

就是以上的信息 不知道是哪错了 在/dev/mmc/blk0下只有一个disc的文件 看来SD卡是认上了
但以上错误位什么出现我就不懂了 知道的达人帮帮忙 谢谢