PIO_IFER          492 drivers/pinctrl/pinctrl-at91.c 	writel_relaxed(mask, pio + (is_on ? PIO_IFER : PIO_IFDR));
PIO_IFER          524 drivers/pinctrl/pinctrl-at91.c 		writel_relaxed(mask, pio + PIO_IFER);