MIPS: ingenic: Add support for the RS90 board
The RS-90, better known as RetroMini, is a small and pocketable handheld gaming console from YLMChina. It has little more than a JZ4725B SoC, a NAND, a screen, some buttons and a speaker. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Paul Cercueil
Thomas Bogendoerfer
parent
c211ab5f5e
commit
ac6b13814f
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@ -1,5 +1,6 @@
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# SPDX-License-Identifier: GPL-2.0
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dtb-$(CONFIG_JZ4740_QI_LB60) += qi_lb60.dtb
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dtb-$(CONFIG_JZ4740_RS90) += rs90.dtb
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dtb-$(CONFIG_JZ4770_GCW0) += gcw0.dtb
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dtb-$(CONFIG_JZ4780_CI20) += ci20.dtb
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dtb-$(CONFIG_X1000_CU1000_NEO) += cu1000-neo.dtb
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@ -0,0 +1,311 @@
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// SPDX-License-Identifier: GPL-2.0
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/dts-v1/;
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#include "jz4725b.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/iio/adc/ingenic,adc.h>
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#include <dt-bindings/input/linux-event-codes.h>
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/ {
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compatible = "ylm,rs90", "ingenic,jz4725b";
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model = "RS-90";
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memory {
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device_type = "memory";
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reg = <0x0 0x2000000>;
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};
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vcc: regulator {
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compatible = "regulator-fixed";
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regulator-name = "vcc";
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regulaor-min-microvolt = <3300000>;
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regulaor-max-microvolt = <3300000>;
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regulator-always-on;
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};
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backlight: backlight {
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compatible = "pwm-backlight";
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pwms = <&pwm 3 40000 0>;
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brightness-levels = <0 16 32 48 64 80 112 144 192 255>;
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default-brightness-level = <8>;
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pinctrl-names = "default";
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pinctrl-0 = <&pins_pwm3>;
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power-supply = <&vcc>;
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};
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keys@0 {
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compatible = "gpio-keys";
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#address-cells = <1>;
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#size-cells = <0>;
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key@0 {
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label = "D-pad up";
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linux,code = <KEY_UP>;
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gpios = <&gpc 10 GPIO_ACTIVE_LOW>;
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};
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key@1 {
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label = "D-pad down";
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linux,code = <KEY_DOWN>;
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gpios = <&gpc 11 GPIO_ACTIVE_LOW>;
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};
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key@2 {
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label = "D-pad left";
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linux,code = <KEY_LEFT>;
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gpios = <&gpb 31 GPIO_ACTIVE_LOW>;
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};
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key@3 {
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label = "D-pad right";
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linux,code = <KEY_RIGHT>;
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gpios = <&gpd 21 GPIO_ACTIVE_LOW>;
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};
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key@4 {
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label = "Button A";
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linux,code = <KEY_LEFTCTRL>;
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gpios = <&gpc 31 GPIO_ACTIVE_LOW>;
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};
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key@5 {
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label = "Button B";
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linux,code = <KEY_LEFTALT>;
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gpios = <&gpc 30 GPIO_ACTIVE_LOW>;
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};
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key@6 {
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label = "Right shoulder button";
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linux,code = <KEY_BACKSPACE>;
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gpios = <&gpc 12 GPIO_ACTIVE_LOW>;
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debounce-interval = <10>;
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};
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key@7 {
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label = "Start button";
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linux,code = <KEY_ENTER>;
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gpios = <&gpd 17 GPIO_ACTIVE_LOW>;
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};
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};
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keys@1 {
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compatible = "adc-keys";
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io-channels = <&adc INGENIC_ADC_AUX>;
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io-channel-names = "buttons";
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keyup-threshold-microvolt = <1400000>;
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poll-interval = <30>;
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key@0 {
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label = "Left shoulder button";
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linux,code = <KEY_TAB>;
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press-threshold-microvolt = <800000>;
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};
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key@1 {
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label = "Select button";
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linux,code = <KEY_ESC>;
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press-threshold-microvolt = <1100000>;
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};
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};
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amp: analog-amplifier {
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compatible = "simple-audio-amplifier";
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enable-gpios = <&gpc 15 GPIO_ACTIVE_HIGH>;
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VCC-supply = <&vcc>;
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};
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sound {
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compatible = "simple-audio-card";
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simple-audio-card,name = "rs90-audio";
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simple-audio-card,format = "i2s";
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simple-audio-card,widgets =
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"Speaker", "Speaker",
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"Headphone", "Headphones";
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simple-audio-card,routing =
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"INL", "LHPOUT",
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"INR", "RHPOUT",
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"Headphones", "LHPOUT",
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"Headphones", "RHPOUT",
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"Speaker", "OUTL",
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"Speaker", "OUTR";
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simple-audio-card,pin-switches = "Speaker";
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simple-audio-card,hp-det-gpio = <&gpd 16 GPIO_ACTIVE_LOW>;
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simple-audio-card,aux-devs = <&>;
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simple-audio-card,bitclock-master = <&dai_codec>;
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simple-audio-card,frame-master = <&dai_codec>;
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dai_cpu: simple-audio-card,cpu {
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sound-dai = <&aic>;
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};
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dai_codec: simple-audio-card,codec {
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sound-dai = <&codec>;
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};
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};
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usb_phy: usb-phy {
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compatible = "usb-nop-xceiv";
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#phy-cells = <0>;
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clocks = <&cgu JZ4725B_CLK_UDC_PHY>;
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clock-names = "main_clk";
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vcc-supply = <&vcc>;
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};
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panel {
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compatible = "sharp,ls020b1dd01d";
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backlight = <&backlight>;
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power-supply = <&vcc>;
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port {
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panel_input: endpoint {
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remote-endpoint = <&panel_output>;
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};
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};
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};
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};
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&ext {
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clock-frequency = <12000000>;
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};
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&rtc_dev {
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system-power-controller;
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};
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&udc {
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phys = <&usb_phy>;
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};
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&pinctrl {
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pins_mmc1: mmc1 {
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function = "mmc1";
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groups = "mmc1-1bit";
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};
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pins_nemc: nemc {
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function = "nand";
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groups = "nand-cs1", "nand-cle-ale", "nand-fre-fwe";
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};
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pins_pwm3: pwm3 {
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function = "pwm3";
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groups = "pwm3";
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bias-disable;
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};
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pins_lcd: lcd {
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function = "lcd";
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groups = "lcd-8bit", "lcd-16bit", "lcd-special";
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};
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};
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&mmc0 {
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status = "disabled";
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};
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&mmc1 {
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bus-width = <1>;
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max-frequency = <48000000>;
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pinctrl-names = "default";
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pinctrl-0 = <&pins_mmc1>;
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cd-gpios = <&gpc 20 GPIO_ACTIVE_LOW>;
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};
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&uart {
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/*
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* The pins for RX/TX are used for the right shoulder button and
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* backlight PWM.
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*/
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status = "disabled";
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};
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&nemc {
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nandc: nand-controller@1 {
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compatible = "ingenic,jz4725b-nand";
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reg = <1 0 0x4000000>;
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#address-cells = <1>;
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#size-cells = <0>;
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ecc-engine = <&bch>;
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ingenic,nemc-tAS = <10>;
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ingenic,nemc-tAH = <5>;
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ingenic,nemc-tBP = <10>;
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ingenic,nemc-tAW = <15>;
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ingenic,nemc-tSTRV = <100>;
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pinctrl-names = "default";
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pinctrl-0 = <&pins_nemc>;
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rb-gpios = <&gpc 27 GPIO_ACTIVE_HIGH>;
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nand@1 {
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reg = <1>;
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nand-ecc-step-size = <512>;
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nand-ecc-strength = <8>;
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nand-ecc-mode = "hw";
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nand-is-boot-medium;
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nand-on-flash-bbt;
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "bootloader";
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reg = <0x0 0x20000>;
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};
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partition@20000 {
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label = "system";
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reg = <0x20000 0x0>;
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};
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};
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};
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};
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};
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&cgu {
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/* Use 32kHz oscillator as the parent of the RTC clock */
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assigned-clocks = <&cgu JZ4725B_CLK_RTC>;
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assigned-clock-parents = <&cgu JZ4725B_CLK_OSC32K>;
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};
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&tcu {
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/*
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* 750 kHz for the system timer and clocksource, and use RTC as the
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* parent for the watchdog clock.
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*/
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assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>, <&tcu TCU_CLK_WDT>;
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assigned-clock-parents = <0>, <0>, <&cgu JZ4725B_CLK_RTC>;
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assigned-clock-rates = <750000>, <750000>;
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};
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&lcd {
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pinctrl-names = "default";
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pinctrl-0 = <&pins_lcd>;
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port {
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panel_output: endpoint {
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remote-endpoint = <&panel_input>;
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};
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};
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};
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@ -15,6 +15,10 @@ config JZ4740_QI_LB60
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bool "Qi Hardware Ben NanoNote"
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select MACH_JZ4740
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config JZ4740_RS90
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bool "YLM RetroMini (RS-90)"
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select MACH_JZ4725B
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config JZ4770_GCW0
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bool "Game Consoles Worldwide GCW Zero"
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select MACH_JZ4770
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