173 lines
3.4 KiB
Plaintext
173 lines
3.4 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* Device Tree for the ST-Ericsson Nomadik S8815 board
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* Produced by Calao Systems
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*/
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/dts-v1/;
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#include <dt-bindings/interrupt-controller/irq.h>
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#include "ste-nomadik-stn8815.dtsi"
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/ {
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model = "Calao Systems USB-S8815";
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compatible = "calaosystems,usb-s8815";
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chosen {
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bootargs = "root=/dev/ram0 console=ttyAMA1,115200n8 earlyprintk";
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};
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aliases {
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serial0 = &uart0;
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serial1 = &uart1;
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};
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gpio3: gpio@101e7000 {
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/* This hog will bias the MMC/SD card detect line */
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mmcsd-gpio {
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gpio-hog;
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gpios = <16 0x0>;
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output-low;
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line-name = "card detect bias";
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};
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};
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src@101e0000 {
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/* These chrystal drivers are not used on this board */
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disable-sxtalo;
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disable-mxtalo;
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};
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pinctrl {
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/* Hog CD pins */
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pinctrl-names = "default";
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pinctrl-0 = <&cd_default_mode>;
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uart0 {
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/* Only use RX/TX pins */
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uart0_s8815_mode: uart0_mux {
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u0_default_mux {
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function = "u0";
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groups = "u0txrx_a_1";
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};
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};
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};
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mmcsd-cd {
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cd_default_mode: cd_default {
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cd_default_cfg1 {
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/* CD input GPIO */
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pins = "GPIO111_H21";
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ste,input = <0>;
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};
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cd_default_cfg2 {
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/* CD GPIO biasing */
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pins = "GPIO112_J21";
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ste,output = <0>;
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};
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};
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};
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gpioi2c {
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gpioi2c_default_mode: gpioi2c_default {
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gpioi2c_default_cfg {
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pins = "GPIO73_C21", "GPIO74_C20";
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ste,input = <0>;
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};
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};
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};
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user-led {
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user_led_default_mode: user_led_default {
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user_led_default_cfg {
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pins = "GPIO2_C5";
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ste,output = <1>;
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};
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};
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};
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user-button {
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user_button_default_mode: user_button_default {
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user_button_default_cfg {
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pins = "GPIO3_A4";
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ste,input = <0>;
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};
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};
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};
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};
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/* Ethernet */
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external-bus@34000000 {
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compatible = "simple-bus";
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reg = <0x34000000 0x1000000>;
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0 0x34000000 0x1000000>;
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ethernet@300 {
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compatible = "smsc,lan91c111";
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reg = <0x300 0x0fd00>;
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interrupt-parent = <&gpio3>;
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interrupts = <8 IRQ_TYPE_EDGE_RISING>;
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};
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};
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i2c1 {
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lis3lv02dl@1d {
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/* Accelerometer */
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compatible = "st,lis3lv02dl-accel";
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reg = <0x1d>;
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};
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};
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/* GPIO I2C connected to the USB portions of the STw4811 only */
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gpio-i2c {
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compatible = "i2c-gpio";
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gpios = <&gpio2 10 0>, /* sda */
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<&gpio2 9 0>; /* scl */
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#address-cells = <1>;
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#size-cells = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&gpioi2c_default_mode>;
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stw4811@2d {
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compatible = "st,stw4811-usb";
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reg = <0x2d>;
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};
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};
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amba {
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/* Activate RXTX on UART 0 */
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uart0: uart@101fd000 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_s8815_mode>;
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status = "okay";
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};
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/* Configure card detect for the uSD slot */
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mmc@101f6000 {
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cd-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>;
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};
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};
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/* The user LED on the board is set up to be used for heartbeat */
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leds {
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compatible = "gpio-leds";
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user-led {
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label = "user_led";
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gpios = <&gpio0 2 0x1>;
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default-state = "off";
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linux,default-trigger = "heartbeat";
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pinctrl-names = "default";
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pinctrl-0 = <&user_led_default_mode>;
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};
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};
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/* User key mapped in as "escape" */
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gpio-keys {
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compatible = "gpio-keys";
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user-button {
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label = "user_button";
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gpios = <&gpio0 3 0x1>;
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linux,code = <1>; /* KEY_ESC */
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wakeup-source;
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pinctrl-names = "default";
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pinctrl-0 = <&user_button_default_mode>;
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};
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};
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};
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