进入板子后一直刷屏显示 mmc_host mmc2: Bus speed (slot 0)

[Secret_H]

本人用的是cotex-a9板子，启动内核后一直刷屏显示：
[ 67.930000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 200000Hz, actual 198412HZ div = 63)
[ 67.971000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 100000Hz, actual 100000HZ div = 125)
[ 68.061000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 400000Hz, actual 390625HZ div = 32)
[ 68.105000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 300000Hz, actual 297619HZ div = 42)
[ 68.143000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 200000Hz, actual 198412HZ div = 63)
[ 68.183000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 100000Hz, actual 100000HZ div = 125)
[ 68.262000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 400000Hz, actual 390625HZ div = 32)
[ 68.297000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 300000Hz, actual 297619HZ div = 42)
[ 68.332000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 200000Hz, actual 198412HZ div = 63)
[ 68.369000] mmc_host mmc2: Bus speed (slot 0) = 25000000Hz (slot req 100000Hz, actual 100000HZ div = 125)
这样的信息，请问有人知道怎么解决吗