R4_18V_PRESENT
int uhs = ocr & R4_18V_PRESENT;
ocr |= R4_18V_PRESENT;
ocr &= ~R4_18V_PRESENT;
if (rocr & ocr & R4_18V_PRESENT) {
ocr &= ~R4_18V_PRESENT;
if (ocr & R4_18V_PRESENT) {
if ((ocr & R4_18V_PRESENT) && card->sw_caps.sd3_bus_mode) {