ARM: dts: mmp2: add OLPC XO 1.75 machine
This is a fairly complete description of an OLPC XO 1.75 laptop. What's missing for now is the GPU, LCD controller, DCON, the panel and audio. The machine is booted with OpenFirmware and thus has a devicetree. However, older versions are unable to create a valid FDT and don't follow the Linux bindings. Having an device tree in the kernel tree makes it easier to use mainline kernels on such machines, test changes with CONFIG_ARM_APPENDED_DTB and give a good reference on what bindings are used on the machine without an access to one. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Pavel Machek <pavel@ucw.cz>
This commit is contained in:
Lubomir Rintel
Arnd Bergmann
parent
9393e2da5c
commit
548d52bcc0
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@ -336,7 +336,8 @@ dtb-$(CONFIG_MACH_MESON8) += \
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dtb-$(CONFIG_ARCH_MMP) += \
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pxa168-aspenite.dtb \
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pxa910-dkb.dtb \
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mmp2-brownstone.dtb
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mmp2-brownstone.dtb \
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mmp2-olpc-xo-1-75.dtb
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dtb-$(CONFIG_ARCH_MPS2) += \
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mps2-an385.dtb \
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mps2-an399.dtb
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@ -0,0 +1,244 @@
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// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
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/*
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* OLPC XO 1.75 Laptop.
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*
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* Copyright (C) 2018,2019 Lubomir Rintel <lkundrak@v3.sk>
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*/
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/dts-v1/;
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#include "mmp2.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/linux-event-codes.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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/ {
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model = "OLPC XO-1.75";
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compatible = "olpc,xo-1.75", "mrvl,mmp2";
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chosen {
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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framebuffer@1fc00000 {
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compatible = "simple-framebuffer";
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reg = <0x1fc00000 (1200 * 900 * 2)>;
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width = <1200>;
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height = <900>;
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stride = <(1200 * 2)>;
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format = "r5g6b5";
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clocks = <&soc_clocks MMP2_CLK_DISP0_LCDC>,
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<&soc_clocks MMP2_CLK_DISP0>;
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};
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};
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memory {
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linux,usable-memory = <0x0 0x1f800000>;
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available = <0xcf000 0x1ef31000 0x1000 0xbf000>;
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reg = <0x0 0x20000000>;
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device_type = "memory";
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};
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gpio-keys {
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compatible = "gpio-keys";
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lid {
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label = "Lid";
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gpios = <&gpio 129 GPIO_ACTIVE_LOW>;
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linux,input-type = <EV_SW>;
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linux,code = <SW_LID>;
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wakeup-source;
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};
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tablet_mode {
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label = "E-Book Mode";
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gpios = <&gpio 128 GPIO_ACTIVE_LOW>;
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linux,input-type = <EV_SW>;
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linux,code = <SW_TABLET_MODE>;
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wakeup-source;
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};
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microphone_insert {
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label = "Microphone Plug";
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gpios = <&gpio 96 GPIO_ACTIVE_HIGH>;
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linux,input-type = <EV_SW>;
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linux,code = <SW_MICROPHONE_INSERT>;
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debounce-interval = <100>;
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wakeup-source;
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};
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headphone_insert {
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label = "Headphone Plug";
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gpios = <&gpio 97 GPIO_ACTIVE_HIGH>;
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linux,input-type = <EV_SW>;
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linux,code = <SW_HEADPHONE_INSERT>;
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debounce-interval = <100>;
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wakeup-source;
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};
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};
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camera_i2c {
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compatible = "i2c-gpio";
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gpios = <&gpio 109 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>,
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<&gpio 108 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
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#address-cells = <1>;
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#size-cells = <0>;
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i2c-gpio,timeout-ms = <1000>;
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status = "okay";
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camera@21 {
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compatible = "ovti,ov7670";
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reg = <0x21>;
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reset-gpios = <&gpio 102 GPIO_ACTIVE_LOW>;
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powerdown-gpios = <&gpio 150 GPIO_ACTIVE_LOW>;
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clocks = <&camera0>;
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clock-names = "xclk";
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port {
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ov7670_0: endpoint {
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hsync-active = <1>;
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vsync-active = <1>;
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remote-endpoint = <&camera0_0>;
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};
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};
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};
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};
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battery {
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compatible = "olpc,xo1.5-battery", "olpc,xo1-battery";
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};
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wlan_reg: fixedregulator0 {
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compatible = "regulator-fixed";
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regulator-name = "wlan";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&gpio 34 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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};
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wlan_pwrseq: pwrseq0 {
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compatible = "mmc-pwrseq-sd8787";
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powerdown-gpios = <&gpio 57 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&gpio 58 GPIO_ACTIVE_HIGH>;
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};
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soc {
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axi@d4200000 {
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ap-sp@d4290000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "olpc,ap-sp";
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interrupts = <40>;
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reg = <0xd4290000 0x1000>;
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data-gpios = <&gpio 72 GPIO_ACTIVE_HIGH>;
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clk-gpios = <&gpio 71 GPIO_ACTIVE_HIGH>;
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status = "okay";
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};
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};
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};
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};
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&uart3 {
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status = "okay";
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};
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&uart4 {
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status = "okay";
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};
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&rtc {
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status = "okay";
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};
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&usb_phy0 {
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status = "okay";
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};
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&usb_otg0 {
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status = "okay";
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};
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&mmc1 {
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clock-frequency = <50000000>;
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no-1-8-v;
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mrvl,clk-delay-cycles = <31>;
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broken-cd;
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status = "okay";
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};
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&mmc2 {
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clock-frequency = <50000000>;
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no-1-8-v;
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bus-width = <4>;
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non-removable;
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broken-cd;
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wakeup-source;
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keep-power-in-suspend;
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mmc-pwrseq = <&wlan_pwrseq>;
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vmmc-supply = <&wlan_reg>;
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status = "okay";
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};
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&mmc3 {
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clock-frequency = <50000000>;
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no-1-8-v;
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bus-width = <8>;
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non-removable;
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broken-cd;
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mrvl,clk-delay-cycles = <31>;
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status = "okay";
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};
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&twsi1 {
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status = "okay";
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audio-codec@1a {
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compatible = "realtek,alc5631";
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reg = <0x1a>;
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status = "okay";
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};
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};
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&twsi2 {
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status = "okay";
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rtc@68 {
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compatible = "dallas,ds1338";
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reg = <0x68>;
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status = "okay";
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};
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};
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&twsi6 {
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status = "okay";
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accelerometer@1d {
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compatible = "st,lis331dlh", "st,lis3lv02d";
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reg = <0x1d>;
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status = "okay";
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};
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};
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&ssp3 {
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#address-cells = <0>;
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spi-slave;
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status = "okay";
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ready-gpio = <&gpio 125 GPIO_ACTIVE_HIGH>;
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slave {
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compatible = "olpc,xo1.75-ec";
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spi-cpha;
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cmd-gpio = <&gpio 155 GPIO_ACTIVE_HIGH>;
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};
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};
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&camera0 {
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status = "okay";
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port {
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camera0_0: endpoint {
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remote-endpoint = <&ov7670_0>;
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};
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};
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};
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