3520A SD卡录像出现mmcblk0: timed out sending r/w cmd command, card status

如题。3520A SD卡录像一段时间就会出现如下错误：
mmcblk0: timed out sending r/w cmd command, card status 0xd00
mmcblk0: not retrying timeout
end_request: I/O error, dev mmcblk0, sector 642792
end_request: I/O error, dev mmcblk0, sector 642800
end_request: I/O error, dev mmcblk0, sector 642808
end_request: I/O error, dev mmcblk0, sector 642816
end_request: I/O error, dev mmcblk0, sector 642824
end_request: I/O error, dev mmcblk0, sector 642832
end_request: I/O error, dev mmcblk0, sector 642840
end_request: I/O error, dev mmcblk0, sector 642848
end_request: I/O error, dev mmcblk0, sector 642856
end_request: I/O error, dev mmcblk0, sector 642864
end_request: I/O error, dev mmcblk0, sector 642872
end_request: I/O error, dev mmcblk0, sector 642880
end_request: I/O error, dev mmcblk0, sector 642888
end_request: I/O error, dev mmcblk0, sector 642896
end_request: I/O error, dev mmcblk0, sector 642904
换过多张SD卡都是这个问题，可以排除是卡的问题。同样的程序在3516D上就不会出现这种问题，可以排除程序的问题。在3520A跑一个最简单的循环写的程序也是一段时间就出现这个问题。
尝试过降低mmc的时钟频率，出现错误的概率会好很多。但是时间长点还是会出现。
困扰了好长时间，求助论坛里的大神指点指点，多谢。