| Message ID | 1414489843-2680-7-git-send-email-wens@csie.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts index 91eda76..105a324 100644 --- a/arch/arm/boot/dts/sun9i-a80-optimus.dts +++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts @@ -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>;
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> --- arch/arm/boot/dts/sun9i-a80-optimus.dts | 11 +++++++++++ 1 file changed, 11 insertions(+)