ac5ce09e14
The mask-tpm-reset GPIO is used by the kernel to prevent the TPM from being reset across sleep/wake. If we don't set it to anything then the TPM will be reset. U-Boot will detect this as invalid and will reset the system on resume time. This GPIO can always be low and not hurt anything. It will get pulled back high again during a normal warm reset when it will default back to an input. To properly preserve the TPM state across suspend/resume and to make the chrome U-Boot happy, properly set the GPIO to mask the reset to the TPM. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Vikas Sajjan <vikas.sajjan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
303 lines
5.9 KiB
Plaintext
303 lines
5.9 KiB
Plaintext
/*
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* Google Peach Pit Rev 6+ board device tree source
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*
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* Copyright (c) 2014 Google, Inc
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/dts-v1/;
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/gpio/gpio.h>
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#include "exynos5420.dtsi"
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/ {
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model = "Google Peach Pit Rev 6+";
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compatible = "google,pit-rev16",
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"google,pit-rev15", "google,pit-rev14",
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"google,pit-rev13", "google,pit-rev12",
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"google,pit-rev11", "google,pit-rev10",
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"google,pit-rev9", "google,pit-rev8",
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"google,pit-rev7", "google,pit-rev6",
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"google,pit", "google,peach","samsung,exynos5420",
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"samsung,exynos5";
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backlight {
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compatible = "pwm-backlight";
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pwms = <&pwm 0 1000000 0>;
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brightness-levels = <0 100 500 1000 1500 2000 2500 2800>;
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default-brightness-level = <7>;
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pinctrl-0 = <&pwm0_out>;
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pinctrl-names = "default";
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};
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fixed-rate-clocks {
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oscclk {
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compatible = "samsung,exynos5420-oscclk";
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clock-frequency = <24000000>;
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};
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};
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gpio-keys {
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compatible = "gpio-keys";
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pinctrl-names = "default";
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pinctrl-0 = <&power_key_irq>;
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power {
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label = "Power";
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gpios = <&gpx1 2 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_POWER>;
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gpio-key,wakeup;
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};
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};
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memory {
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reg = <0x20000000 0x80000000>;
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};
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sound {
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compatible = "google,snow-audio-max98090";
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samsung,model = "Peach-Pit-I2S-MAX98090";
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samsung,i2s-controller = <&i2s0>;
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samsung,audio-codec = <&max98090>;
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};
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usb300_vbus_reg: regulator-usb300 {
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compatible = "regulator-fixed";
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regulator-name = "P5.0V_USB3CON0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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gpio = <&gph0 0 0>;
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pinctrl-names = "default";
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pinctrl-0 = <&usb300_vbus_en>;
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enable-active-high;
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};
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usb301_vbus_reg: regulator-usb301 {
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compatible = "regulator-fixed";
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regulator-name = "P5.0V_USB3CON1";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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gpio = <&gph0 1 0>;
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pinctrl-names = "default";
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pinctrl-0 = <&usb301_vbus_en>;
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enable-active-high;
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};
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};
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&dp {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&dp_hpd_gpio>;
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samsung,color-space = <0>;
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samsung,dynamic-range = <0>;
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samsung,ycbcr-coeff = <0>;
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samsung,color-depth = <1>;
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samsung,link-rate = <0x06>;
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samsung,lane-count = <2>;
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samsung,hpd-gpio = <&gpx2 6 0>;
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display-timings {
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native-mode = <&timing1>;
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timing1: timing@1 {
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clock-frequency = <70589280>;
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hactive = <1366>;
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vactive = <768>;
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hfront-porch = <40>;
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hback-porch = <40>;
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hsync-len = <32>;
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vback-porch = <10>;
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vfront-porch = <12>;
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vsync-len = <6>;
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};
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};
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};
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&fimd {
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status = "okay";
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samsung,invert-vclk;
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};
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&hdmi {
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status = "okay";
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hpd-gpio = <&gpx3 7 GPIO_ACTIVE_HIGH>;
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pinctrl-names = "default";
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pinctrl-0 = <&hdmi_hpd_irq>;
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ddc = <&i2c_2>;
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};
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&hsi2c_7 {
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status = "okay";
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max98090: codec@10 {
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compatible = "maxim,max98090";
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reg = <0x10>;
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interrupts = <2 0>;
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interrupt-parent = <&gpx0>;
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pinctrl-names = "default";
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pinctrl-0 = <&max98090_irq>;
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};
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};
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&hsi2c_9 {
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status = "okay";
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clock-frequency = <400000>;
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tpm@20 {
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compatible = "infineon,slb9645tt";
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reg = <0x20>;
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/* Unused irq; but still need to configure the pins */
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pinctrl-names = "default";
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pinctrl-0 = <&tpm_irq>;
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};
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};
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&i2c_2 {
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status = "okay";
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samsung,i2c-sda-delay = <100>;
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samsung,i2c-max-bus-freq = <66000>;
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samsung,i2c-slave-addr = <0x50>;
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};
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&i2s0 {
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status = "okay";
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};
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&mmc_0 {
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status = "okay";
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num-slots = <1>;
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broken-cd;
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caps2-mmc-hs200-1_8v;
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supports-highspeed;
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non-removable;
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card-detect-delay = <200>;
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clock-frequency = <400000000>;
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samsung,dw-mshc-ciu-div = <3>;
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samsung,dw-mshc-sdr-timing = <0 4>;
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samsung,dw-mshc-ddr-timing = <0 2>;
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pinctrl-names = "default";
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pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>;
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slot@0 {
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reg = <0>;
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bus-width = <8>;
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};
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};
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&mmc_2 {
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status = "okay";
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num-slots = <1>;
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supports-highspeed;
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card-detect-delay = <200>;
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clock-frequency = <400000000>;
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samsung,dw-mshc-ciu-div = <3>;
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samsung,dw-mshc-sdr-timing = <2 3>;
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samsung,dw-mshc-ddr-timing = <1 2>;
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pinctrl-names = "default";
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pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
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slot@0 {
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reg = <0>;
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bus-width = <4>;
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};
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};
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&pinctrl_0 {
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pinctrl-names = "default";
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pinctrl-0 = <&mask_tpm_reset>;
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max98090_irq: max98090-irq {
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samsung,pins = "gpx0-2";
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samsung,pin-function = <0>;
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samsung,pin-pud = <0>;
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samsung,pin-drv = <0>;
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};
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/* We need GPX0_6 to be low at sleep time; just keep it low always */
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mask_tpm_reset: mask-tpm-reset {
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samsung,pins = "gpx0-6";
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samsung,pin-function = <1>;
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samsung,pin-pud = <0>;
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samsung,pin-drv = <0>;
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samsung,pin-val = <0>;
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};
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tpm_irq: tpm-irq {
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samsung,pins = "gpx1-0";
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samsung,pin-function = <0>;
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samsung,pin-pud = <0>;
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samsung,pin-drv = <0>;
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};
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power_key_irq: power-key-irq {
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samsung,pins = "gpx1-2";
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samsung,pin-function = <0>;
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samsung,pin-pud = <0>;
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samsung,pin-drv = <0>;
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};
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dp_hpd_gpio: dp_hpd_gpio {
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samsung,pins = "gpx2-6";
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samsung,pin-function = <0>;
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samsung,pin-pud = <3>;
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samsung,pin-drv = <0>;
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};
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hdmi_hpd_irq: hdmi-hpd-irq {
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samsung,pins = "gpx3-7";
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samsung,pin-function = <0>;
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samsung,pin-pud = <1>;
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samsung,pin-drv = <0>;
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};
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};
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&pinctrl_3 {
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usb300_vbus_en: usb300-vbus-en {
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samsung,pins = "gph0-0";
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samsung,pin-function = <1>;
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samsung,pin-pud = <0>;
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samsung,pin-drv = <0>;
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};
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usb301_vbus_en: usb301-vbus-en {
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samsung,pins = "gph0-1";
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samsung,pin-function = <1>;
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samsung,pin-pud = <0>;
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samsung,pin-drv = <0>;
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};
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};
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&rtc {
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status = "okay";
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};
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&uart_3 {
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status = "okay";
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};
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&usbdrd_phy0 {
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vbus-supply = <&usb300_vbus_reg>;
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};
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&usbdrd_phy1 {
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vbus-supply = <&usb301_vbus_reg>;
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};
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/*
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* Use longest HW watchdog in SoC (32 seconds) since the hardware
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* watchdog provides no debugging information (compared to soft/hard
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* lockup detectors) and so should be last resort.
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*/
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&watchdog {
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timeout-sec = <32>;
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};
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