diff options
| author | Chen-Yu Tsai <[email protected]> | 2014-10-31 11:05:51 +0800 |
|---|---|---|
| committer | Maxime Ripard <[email protected]> | 2014-11-23 16:53:04 +0100 |
| commit | 80204f37d6367a304e2b8a6c8c4c207c97832a39 (patch) | |
| tree | 64168df2f0a1ca30c881a91cd73fd4f681ea8ac2 | |
| parent | 7ed8e0ff228083425b4d59a388e6cd605a3508e3 (diff) | |
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 <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
| -rw-r--r-- | arch/arm/boot/dts/sun9i-a80-optimus.dts | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts index 87b1355e3cd7..506948f582ee 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>; |