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linux/arch/arm/boot/dts/exynos5250-snow.dts
Javier Martinez Canillas 038e409605 ARM: dts: Define stdout-path property for exynos5250-snow 
The kernel can use as the default console a serial port if is defined
as stdout device in the Device Tree.

This allows a board to be booted without the need of having a console
parameter in the kernel command line.

Currently the Snow DTS has a bootargs in the /chosen node and this is
kept since users that don't have a serial console on this board might
be using it to have the boot log shown in the display. This will have
more precedence than the stdout-path but it's fine since is only used
when CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is enabled.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-03-18 00:31:27 +09:00

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/*
* Google Snow board device tree source
*
* Copyright (c) 2012 Google, Inc
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/dts-v1/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/clock/maxim,max77686.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/input.h>
#include "exynos5250.dtsi"
/ {
model = "Google Snow";
compatible = "google,snow", "samsung,exynos5250", "samsung,exynos5";
aliases {
i2c104 = &i2c_104;
};
memory {
reg = <0x40000000 0x80000000>;
};
chosen {
bootargs = "console=tty1";
stdout-path = "serial3:115200n8";
};
gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&power_key_irq &lid_irq>;
power {
label = "Power";
gpios = <&gpx1 3 GPIO_ACTIVE_LOW>;
linux,code = <KEY_POWER>;
gpio-key,wakeup;
};
lid-switch {
label = "Lid";
gpios = <&gpx3 5 GPIO_ACTIVE_LOW>;
linux,input-type = <5>; /* EV_SW */
linux,code = <0>; /* SW_LID */
debounce-interval = <1>;
gpio-key,wakeup;
};
};
vbat: vbat-fixed-regulator {
compatible = "regulator-fixed";
regulator-name = "vbat-supply";
regulator-boot-on;
};
i2c-arbitrator {
compatible = "i2c-arb-gpio-challenge";
#address-cells = <1>;
#size-cells = <0>;
i2c-parent = <&{/i2c@12CA0000}>;
our-claim-gpio = <&gpf0 3 GPIO_ACTIVE_LOW>;
their-claim-gpios = <&gpe0 4 GPIO_ACTIVE_LOW>;
slew-delay-us = <10>;
wait-retry-us = <3000>;
wait-free-us = <50000>;
pinctrl-names = "default";
pinctrl-0 = <&arb_our_claim &arb_their_claim>;
/* Use ID 104 as a hint that we're on physical bus 4 */
i2c_104: i2c@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
battery: sbs-battery@b {
compatible = "sbs,sbs-battery";
reg = <0xb>;
sbs,poll-retry-count = <1>;
};
cros_ec: embedded-controller {
compatible = "google,cros-ec-i2c";
reg = <0x1e>;
interrupts = <6 IRQ_TYPE_NONE>;
interrupt-parent = <&gpx1>;
pinctrl-names = "default";
pinctrl-0 = <&ec_irq>;
wakeup-source;
};
power-regulator {
compatible = "ti,tps65090";
reg = <0x48>;
/*
* Config irq to disable internal pulls
* even though we run in polling mode.
*/
pinctrl-names = "default";
pinctrl-0 = <&tps65090_irq>;
vsys1-supply = <&vbat>;
vsys2-supply = <&vbat>;
vsys3-supply = <&vbat>;
infet1-supply = <&vbat>;
infet2-supply = <&vbat>;
infet3-supply = <&vbat>;
infet4-supply = <&vbat>;
infet5-supply = <&vbat>;
infet6-supply = <&vbat>;
infet7-supply = <&vbat>;
vsys-l1-supply = <&vbat>;
vsys-l2-supply = <&vbat>;
regulators {
dcdc1 {
ti,enable-ext-control;
};
dcdc2 {
ti,enable-ext-control;
};
dcdc3 {
ti,enable-ext-control;
};
fet1: fet1 {
regulator-name = "vcd_led";
ti,overcurrent-wait = <3>;
};
tps65090_fet2: fet2 {
regulator-name = "video_mid";
regulator-always-on;
ti,overcurrent-wait = <3>;
};
fet3 {
regulator-name = "wwan_r";
regulator-always-on;
ti,overcurrent-wait = <3>;
};
fet4 {
regulator-name = "sdcard";
ti,overcurrent-wait = <3>;
};
fet5 {
regulator-name = "camout";
regulator-always-on;
ti,overcurrent-wait = <3>;
};
fet6: fet6 {
regulator-name = "lcd_vdd";
ti,overcurrent-wait = <3>;
};
tps65090_fet7: fet7 {
regulator-name = "video_mid_1a";
regulator-always-on;
ti,overcurrent-wait = <3>;
};
ldo1 {
};
ldo2 {
};
};
charger {
compatible = "ti,tps65090-charger";
};
};
};
};
i2c@12CD0000 {
ptn3460: lvds-bridge@20 {
compatible = "nxp,ptn3460";
reg = <0x20>;
powerdown-gpios = <&gpy2 5 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpx1 5 GPIO_ACTIVE_HIGH>;
edid-emulation = <5>;
ports {
port@0 {
bridge_out: endpoint {
remote-endpoint = <&panel_in>;
};
};
port@1 {
bridge_in: endpoint {
remote-endpoint = <&dp_out>;
};
};
};
};
};
sound {
compatible = "google,snow-audio-max98095";
samsung,model = "Snow-I2S-MAX98095";
samsung,i2s-controller = <&i2s0>;
samsung,audio-codec = <&max98095>;
};
usb3_vbus_reg: regulator-usb3 {
compatible = "regulator-fixed";
regulator-name = "P5.0V_USB3CON";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
gpio = <&gpx2 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&usb3_vbus_en>;
enable-active-high;
};
fixed-rate-clocks {
xxti {
compatible = "samsung,clock-xxti";
clock-frequency = <24000000>;
};
};
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pwm 0 1000000 0>;
brightness-levels = <0 100 500 1000 1500 2000 2500 2800>;
default-brightness-level = <7>;
enable-gpios = <&gpx3 0 GPIO_ACTIVE_HIGH>;
power-supply = <&fet1>;
pinctrl-0 = <&pwm0_out>;
pinctrl-names = "default";
};
panel: panel {
compatible = "auo,b116xw03";
power-supply = <&fet6>;
backlight = <&backlight>;
port {
panel_in: endpoint {
remote-endpoint = <&bridge_out>;
};
};
};
mmc3_pwrseq: mmc3_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpx0 2 GPIO_ACTIVE_LOW>, /* WIFI_RSTn */
<&gpx0 1 GPIO_ACTIVE_LOW>; /* WIFI_EN */
clocks = <&max77686 MAX77686_CLK_PMIC>;
clock-names = "ext_clock";
};
};
&dp {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&dp_hpd>;
samsung,color-space = <0>;
samsung,dynamic-range = <0>;
samsung,ycbcr-coeff = <0>;
samsung,color-depth = <1>;
samsung,link-rate = <0x0a>;
samsung,lane-count = <2>;
samsung,hpd-gpio = <&gpx0 7 GPIO_ACTIVE_HIGH>;
ports {
port@0 {
dp_out: endpoint {
remote-endpoint = <&bridge_in>;
};
};
};
};
&ehci {
samsung,vbus-gpio = <&gpx1 1 GPIO_ACTIVE_HIGH>;
};
&fimd {
status = "okay";
samsung,invert-vclk;
};
&hdmi {
hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd_irq>;
phy = <&hdmiphy>;
ddc = <&i2c_2>;
hdmi-en-supply = <&tps65090_fet7>;
vdd-supply = <&ldo8_reg>;
vdd_osc-supply = <&ldo10_reg>;
vdd_pll-supply = <&ldo8_reg>;
};
&i2c_0 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <378000>;
max77686: max77686@09 {
compatible = "maxim,max77686";
interrupt-parent = <&gpx3>;
interrupts = <2 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&max77686_irq>;
wakeup-source;
reg = <0x09>;
#clock-cells = <1>;
voltage-regulators {
ldo1_reg: LDO1 {
regulator-name = "P1.0V_LDO_OUT1";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo2_reg: LDO2 {
regulator-name = "P1.8V_LDO_OUT2";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo3_reg: LDO3 {
regulator-name = "P1.8V_LDO_OUT3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo7_reg: LDO7 {
regulator-name = "P1.1V_LDO_OUT7";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
};
ldo8_reg: LDO8 {
regulator-name = "P1.0V_LDO_OUT8";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo10_reg: LDO10 {
regulator-name = "P1.8V_LDO_OUT10";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo12_reg: LDO12 {
regulator-name = "P3.0V_LDO_OUT12";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
};
ldo14_reg: LDO14 {
regulator-name = "P1.8V_LDO_OUT14";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo15_reg: LDO15 {
regulator-name = "P1.0V_LDO_OUT15";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo16_reg: LDO16 {
regulator-name = "P1.8V_LDO_OUT16";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
buck1_reg: BUCK1 {
regulator-name = "vdd_mif";
regulator-min-microvolt = <950000>;
regulator-max-microvolt = <1300000>;
regulator-always-on;
regulator-boot-on;
};
buck2_reg: BUCK2 {
regulator-name = "vdd_arm";
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-boot-on;
};
buck3_reg: BUCK3 {
regulator-name = "vdd_int";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1200000>;
regulator-always-on;
regulator-boot-on;
};
buck4_reg: BUCK4 {
regulator-name = "vdd_g3d";
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <1300000>;
regulator-always-on;
regulator-boot-on;
};
buck5_reg: BUCK5 {
regulator-name = "P1.8V_BUCK_OUT5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
};
buck6_reg: BUCK6 {
regulator-name = "P1.35V_BUCK_OUT6";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
};
buck7_reg: BUCK7 {
regulator-name = "P2.0V_BUCK_OUT7";
regulator-min-microvolt = <2000000>;
regulator-max-microvolt = <2000000>;
regulator-always-on;
};
buck8_reg: BUCK8 {
regulator-name = "P2.85V_BUCK_OUT8";
regulator-min-microvolt = <2850000>;
regulator-max-microvolt = <2850000>;
regulator-always-on;
};
};
};
};
&i2c_1 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <378000>;
trackpad {
reg = <0x67>;
compatible = "cypress,cyapa";
interrupts = <2 IRQ_TYPE_NONE>;
interrupt-parent = <&gpx1>;
wakeup-source;
};
};
/*
* Disabled pullups since external part has its own pullups and
* double-pulling gets us out of spec in some cases.
*/
&i2c2_bus {
samsung,pin-pud = <0>;
};
&i2c_2 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <66000>;
hdmiddc@50 {
compatible = "samsung,exynos4210-hdmiddc";
reg = <0x50>;
};
};
&i2c_3 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <66000>;
};
&i2c_4 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <66000>;
};
&i2c_5 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <66000>;
};
&i2c_7 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <66000>;
max98095: codec@11 {
compatible = "maxim,max98095";
reg = <0x11>;
pinctrl-0 = <&max98095_en>;
pinctrl-names = "default";
};
};
&i2c_8 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <378000>;
hdmiphy: hdmiphy@38 {
compatible = "samsung,exynos4212-hdmiphy";
reg = <0x38>;
};
};
&i2s0 {
status = "okay";
};
&mmc_0 {
status = "okay";
num-slots = <1>;
broken-cd;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
samsung,dw-mshc-ddr-timing = <1 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_cd &sd0_bus4 &sd0_bus8>;
bus-width = <8>;
cap-mmc-highspeed;
};
&mmc_2 {
status = "okay";
num-slots = <1>;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
samsung,dw-mshc-ddr-timing = <1 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
bus-width = <4>;
wp-gpios = <&gpc2 1 GPIO_ACTIVE_HIGH>;
cap-sd-highspeed;
};
/*
* On Snow we've got SIP WiFi and so can keep drive strengths low to
* reduce EMI.
*/
&mmc_3 {
status = "okay";
num-slots = <1>;
broken-cd;
cap-sdio-irq;
card-detect-delay = <200>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <2 3>;
samsung,dw-mshc-ddr-timing = <1 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd3_clk &sd3_cmd &sd3_bus4 &wifi_en &wifi_rst>;
bus-width = <4>;
cap-sd-highspeed;
mmc-pwrseq = <&mmc3_pwrseq>;
};
&pinctrl_0 {
wifi_en: wifi-en {
samsung,pins = "gpx0-1";
samsung,pin-function = <1>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
wifi_rst: wifi-rst {
samsung,pins = "gpx0-2";
samsung,pin-function = <1>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
power_key_irq: power-key-irq {
samsung,pins = "gpx1-3";
samsung,pin-function = <0xf>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
ec_irq: ec-irq {
samsung,pins = "gpx1-6";
samsung,pin-function = <0>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
max98095_en: max98095-en {
samsung,pins = "gpx1-7";
samsung,pin-function = <0>;
samsung,pin-pud = <3>;
samsung,pin-drv = <0>;
};
tps65090_irq: tps65090-irq {
samsung,pins = "gpx2-6";
samsung,pin-function = <0>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
usb3_vbus_en: usb3-vbus-en {
samsung,pins = "gpx2-7";
samsung,pin-function = <1>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
max77686_irq: max77686-irq {
samsung,pins = "gpx3-2";
samsung,pin-function = <0>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
lid_irq: lid-irq {
samsung,pins = "gpx3-5";
samsung,pin-function = <0xf>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
hdmi_hpd_irq: hdmi-hpd-irq {
samsung,pins = "gpx3-7";
samsung,pin-function = <0>;
samsung,pin-pud = <1>;
samsung,pin-drv = <0>;
};
};
&pinctrl_1 {
arb_their_claim: arb-their-claim {
samsung,pins = "gpe0-4";
samsung,pin-function = <0>;
samsung,pin-pud = <3>;
samsung,pin-drv = <0>;
};
arb_our_claim: arb-our-claim {
samsung,pins = "gpf0-3";
samsung,pin-function = <1>;
samsung,pin-pud = <0>;
samsung,pin-drv = <0>;
};
};
&rtc {
status = "okay";
clocks = <&clock CLK_RTC>, <&max77686 MAX77686_CLK_AP>;
clock-names = "rtc", "rtc_src";
};
&sd3_bus4 {
samsung,pin-drv = <0>;
};
&sd3_clk {
samsung,pin-drv = <0>;
};
&sd3_cmd {
samsung,pin-pud = <3>;
samsung,pin-drv = <0>;
};
&spi_1 {
status = "okay";
samsung,spi-src-clk = <0>;
num-cs = <1>;
};
&usbdrd_dwc3 {
dr_mode = "host";
};
&usbdrd_phy {
vbus-supply = <&usb3_vbus_reg>;
};
#include "cros-ec-keyboard.dtsi"
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