diff options
Diffstat (limited to 'kernel/arch/arm/boot/dts/sun8i-a23-evb.dts')
| -rw-r--r-- | kernel/arch/arm/boot/dts/sun8i-a23-evb.dts | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/kernel/arch/arm/boot/dts/sun8i-a23-evb.dts b/kernel/arch/arm/boot/dts/sun8i-a23-evb.dts new file mode 100644 index 000000000..610786e63 --- /dev/null +++ b/kernel/arch/arm/boot/dts/sun8i-a23-evb.dts @@ -0,0 +1,134 @@ +/* + * Copyright 2015 Maxime Ripard + * + * Maxime Ripard <maxime.ripard@free-electrons.com> + * + * This file is dual-licensed: you can use it either under the terms + * of the GPL or the X11 license, at your option. Note that this dual + * licensing only applies to this file, and not this project as a + * whole. + * + * a) This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Or, alternatively, + * + * b) Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +/dts-v1/; +#include "sun8i-a23.dtsi" +#include "sunxi-common-regulators.dtsi" + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/input/input.h> +#include <dt-bindings/pinctrl/sun4i-a10.h> + +/ { + model = "Allwinner A23 Evaluation Board"; + compatible = "allwinner,sun8i-a23-evb", "allwinner,sun8i-a23"; + + aliases { + i2c0 = &i2c0; + i2c1 = &i2c1; + serial0 = &r_uart; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins_a>; + status = "okay"; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins_a>; + status = "okay"; +}; + +&lradc { + vref-supply = <®_vcc3v0>; + status = "okay"; + + button@190 { + label = "Volume Up"; + linux,code = <KEY_VOLUMEUP>; + channel = <0>; + voltage = <190000>; + }; + + button@390 { + label = "Volume Down"; + linux,code = <KEY_VOLUMEDOWN>; + channel = <0>; + voltage = <390000>; + }; + + button@600 { + label = "Home"; + linux,code = <KEY_HOME>; + channel = <0>; + voltage = <600000>; + }; +}; + +&mmc0 { + pinctrl-names = "default"; + pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_evb>; + vmmc-supply = <®_vcc3v0>; + bus-width = <4>; + cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */ + cd-inverted; + status = "okay"; +}; + +&pio { + mmc0_cd_pin_evb: mmc0_cd_pin@0 { + allwinner,pins = "PB4"; + allwinner,function = "gpio_in"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; + }; +}; + +/* + * The RX line has a non-populated resistance. In order to use it, you + * need to solder R207 on the back of the board in order to close the + * line and get a working UART. + */ +&r_uart { + pinctrl-names = "default"; + pinctrl-0 = <&r_uart_pins_a>; + status = "okay"; +}; |