UMC_V6_7_NA_MAP_PA_NUM
adev->umc.retire_unit = (UMC_V6_7_NA_MAP_PA_NUM * 2);
for (column = 0; column < UMC_V6_7_NA_MAP_PA_NUM; column++) {
#define UMC_V6_7_BAD_PAGE_NUM_PER_CHANNEL (UMC_V6_7_NA_MAP_PA_NUM * 2)