Tool/software: Code Composer Studio
we have check the irq,it‘s ok。 Some times it will failed in some cmd, like get_cid or sd card in busy state. but replug the sd card, it will be ok。
And sometimes we eject sd card while recording video, it will block at cmd25 WRITE_MULTIPLE_BLOCK 。 In this time the node /dev/mmcblk1p1 still existence
so we use vsdk2.8 kernel omap_hsmmc.c instead it, cmd25 error has been solved , but SD card probability is not recognized, it failed in initial stage。