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ARM: sun8i: Introduce A23 Evaluation Board Support

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The A23 Evaluation Board has an MMC slot, two UARTs, NAND, a few display
connectors (RGB, MIPI, LVDS), a mini-PCIE slot, USB host and OTG and a
bunch of embedded sensors.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Maxime Ripard 2015-05-07 22:46:53 +02:00
parent f3022c6ca0
commit 5f6883898c
2 changed files with 135 additions and 0 deletions
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1
arch/arm/boot/dts/Makefile
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@ -570,6 +570,7 @@ dtb-$(CONFIG_MACH_SUN7I) += \
sun7i-a20-pcduino3-nano.dtb \
sun7i-a20-wexler-tab7200.dtb
dtb-$(CONFIG_MACH_SUN8I) += \
sun8i-a23-evb.dtb \
sun8i-a23-ippo-q8h-v5.dtb \
sun8i-a23-ippo-q8h-v1.2.dtb
dtb-$(CONFIG_MACH_SUN9I) += \

134
arch/arm/boot/dts/sun8i-a23-evb.dts Normal file
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@ -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 = <&reg_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 = <&reg_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";
};