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