Could you change another sample to test? As a result, we can check this is a driver issue or sample issue. > [ 4.518732] mmc0: req done (CMD18): 0: 00000900 00000000 00000000 00000000 > [ 4.518746] mmc0: 4096 bytes transferred: 0 > [ 4.518756] mmc0: (CMD12): 0: 00000b00 00000000 00000000 00000000 the eMMC has change state to data state(0xb00) and the data transferred 0... It means the cmd and clk pin work well. I will check the DMA and data lines(pin). > [ 4.518545] mmc1: req done (CMD17): 0: 00000900 00000000 00000000 00000000 > [ 4.518563] mmc1: 0 bytes transferred: -84 No data transferred from your platform to eMMC....even use single block read. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
