Commit fec99deb authored Oct 31, 2014 by Chen-Yu Tsai Committed by Maxime Ripard Oct 31, 2014

ARM: dts: sun9i: Enable uart4 for A80 Optimus board



The A80 Optimus board exposes uart4 on the GPIO expansion header.
Enable it so we can use it.

Also enable the internal pull-ups, as there doesn't seem to be
external pull-up resistors for pins on the expansion header.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

parent 2a950b2c

arch/arm/boot/dts/sun9i-a80-optimus.dts

+11 −0

Original line number	Diff line number	Diff line
		@@ -71,6 +71,11 @@
		allwinner,drive = <0>;
		allwinner,pull = <0>;
		};

		uart4_pins_a: uart4@0 {
		/* Enable internal pull-up */
		allwinner,pull = <1>;
		};
		};

		uart0: serial@07000000 {
		@@ -79,6 +84,12 @@
		status = "okay";
		};

		uart4: serial@07001000 {
		pinctrl-names = "default";
		pinctrl-0 = <&uart4_pins_a>;
		status = "okay";
		};

		i2c3: i2c@07003400 {
		pinctrl-names = "default";
		pinctrl-0 = <&i2c3_pins_a>;