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linux-stable/arch/arm/boot/dts/exynos4210-origen.dts
Krzysztof Kozlowski 5d2bb6621c ARM: dts: exynos: Add CPU cooling in Exynos4210 Origen 
Add missing cooling devices for CPU thermal zones in Exynos4210 Origen
board.  This allows to scale down CPU frequency (and voltage) in case of
thermal pressure.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200830135200.24304-19-krzk@kernel.org
2020-09-02 17:46:28 +02:00

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// SPDX-License-Identifier: GPL-2.0
/*
* Samsung's Exynos4210 based Origen board device tree source
*
* Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
* Copyright (c) 2010-2011 Linaro Ltd.
* www.linaro.org
*
* Device tree source file for Insignal's Origen board which is based on
* Samsung's Exynos4210 SoC.
*/
/dts-v1/;
#include "exynos4210.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include "exynos-mfc-reserved-memory.dtsi"
/ {
model = "Insignal Origen evaluation board based on Exynos4210";
compatible = "insignal,origen", "samsung,exynos4210", "samsung,exynos4";
memory@40000000 {
device_type = "memory";
reg = <0x40000000 0x10000000
0x50000000 0x10000000
0x60000000 0x10000000
0x70000000 0x10000000>;
};
chosen {
bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M init=/linuxrc";
stdout-path = "serial2:115200n8";
};
mmc_reg: voltage-regulator {
compatible = "regulator-fixed";
regulator-name = "VMEM_VDD_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
gpio = <&gpx1 1 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
gpio_keys {
compatible = "gpio-keys";
up {
label = "Up";
gpios = <&gpx2 0 GPIO_ACTIVE_LOW>;
linux,code = <KEY_UP>;
wakeup-source;
};
down {
label = "Down";
gpios = <&gpx2 1 GPIO_ACTIVE_LOW>;
linux,code = <KEY_DOWN>;
wakeup-source;
};
back {
label = "Back";
gpios = <&gpx1 7 GPIO_ACTIVE_LOW>;
linux,code = <KEY_BACK>;
wakeup-source;
};
home {
label = "Home";
gpios = <&gpx1 6 GPIO_ACTIVE_LOW>;
linux,code = <KEY_HOME>;
wakeup-source;
};
menu {
label = "Menu";
gpios = <&gpx1 5 GPIO_ACTIVE_LOW>;
linux,code = <KEY_MENU>;
wakeup-source;
};
};
leds {
compatible = "gpio-leds";
status {
gpios = <&gpx1 3 GPIO_ACTIVE_LOW>;
linux,default-trigger = "heartbeat";
};
};
fixed-rate-clocks {
xxti {
compatible = "samsung,clock-xxti";
clock-frequency = <0>;
};
xusbxti {
compatible = "samsung,clock-xusbxti";
clock-frequency = <24000000>;
};
pmic_ap_clk: pmic-ap-clk {
/* Workaround for missing clock on max8997 PMIC */
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <32768>;
};
};
display-timings {
native-mode = <&timing0>;
timing0: timing {
clock-frequency = <47500000>;
hactive = <1024>;
vactive = <600>;
hfront-porch = <64>;
hback-porch = <16>;
hsync-len = <48>;
vback-porch = <64>;
vfront-porch = <16>;
vsync-len = <3>;
};
};
};
&cpu0 {
cpu0-supply = <&buck1_reg>;
};
&cpu_thermal {
cooling-maps {
map0 {
/* Corresponds to 800MHz */
cooling-device = <&cpu0 2 2>;
};
map1 {
/* Corresponds to 200MHz */
cooling-device = <&cpu0 4 4>;
};
};
};
&exynos_usbphy {
status = "okay";
};
&fimd {
pinctrl-0 = <&lcd_en &lcd_clk &lcd_data24 &pwm0_out>;
pinctrl-names = "default";
status = "okay";
};
&gpu {
mali-supply = <&buck3_reg>;
status = "okay";
};
&hsotg {
vusb_d-supply = <&ldo3_reg>;
vusb_a-supply = <&ldo8_reg>;
dr_mode = "peripheral";
status = "okay";
};
&i2c_0 {
status = "okay";
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <20000>;
pinctrl-0 = <&i2c0_bus>;
pinctrl-names = "default";
max8997_pmic@66 {
compatible = "maxim,max8997-pmic";
reg = <0x66>;
interrupt-parent = <&gpx0>;
interrupts = <4 IRQ_TYPE_NONE>, <3 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&max8997_irq>;
max8997,pmic-buck1-dvs-voltage = <1350000>;
max8997,pmic-buck2-dvs-voltage = <1100000>;
max8997,pmic-buck5-dvs-voltage = <1200000>;
regulators {
ldo1_reg: LDO1 {
regulator-name = "VDD_ABB_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
ldo2_reg: LDO2 {
regulator-name = "VDD_ALIVE_1.1V";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
};
ldo3_reg: LDO3 {
regulator-name = "VMIPI_1.1V";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
};
ldo4_reg: LDO4 {
regulator-name = "VDD_RTC_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo6_reg: LDO6 {
regulator-name = "VMIPI_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo7_reg: LDO7 {
regulator-name = "VDD_AUD_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
ldo8_reg: LDO8 {
regulator-name = "VADC_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
ldo9_reg: LDO9 {
regulator-name = "DVDD_SWB_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-always-on;
};
ldo10_reg: LDO10 {
regulator-name = "VDD_PLL_1.1V";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
};
ldo11_reg: LDO11 {
regulator-name = "VDD_AUD_3V";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
};
ldo14_reg: LDO14 {
regulator-name = "AVDD18_SWB_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo17_reg: LDO17 {
regulator-name = "VDD_SWB_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
ldo21_reg: LDO21 {
regulator-name = "VDD_MIF_1.2V";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-always-on;
};
buck1_reg: BUCK1 {
regulator-name = "VDD_ARM_1.2V";
regulator-min-microvolt = <950000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-boot-on;
};
buck2_reg: BUCK2 {
regulator-name = "VDD_INT_1.1V";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
regulator-boot-on;
};
buck3_reg: BUCK3 {
regulator-name = "VDD_G3D_1.1V";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1100000>;
};
buck5_reg: BUCK5 {
regulator-name = "VDDQ_M1M2_1.2V";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-always-on;
};
buck7_reg: BUCK7 {
regulator-name = "VDD_LCD_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
EN32KHZ_AP {
regulator-name = "EN32KHZ_AP";
regulator-always-on;
};
};
};
};
&pinctrl_1 {
max8997_irq: max8997-irq {
samsung,pins = "gpx0-3", "gpx0-4";
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
};
};
&sdhci_0 {
bus-width = <4>;
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_cd>;
pinctrl-names = "default";
vmmc-supply = <&mmc_reg>;
status = "okay";
};
&sdhci_2 {
bus-width = <4>;
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4 &sd2_cd>;
pinctrl-names = "default";
vmmc-supply = <&mmc_reg>;
status = "okay";
};
&serial_0 {
status = "okay";
};
&serial_1 {
status = "okay";
};
&serial_2 {
status = "okay";
};
&serial_3 {
status = "okay";
};
&rtc {
status = "okay";
clocks = <&clock CLK_RTC>, <&pmic_ap_clk>;
clock-names = "rtc", "rtc_src";
};
&tmu {
status = "okay";
};
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