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linux-stable/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
Marek Szyprowski b9631bc201 ARM: dts: exynos: Fix broken reboot on some Odroid U2/X2/U3 boards 
The bootloader on Odroid U2/X2/U3 boards configures main ARM clock to
1GHz. During the system shutdown procedure Linux kernel selects so called
'suspend-opp' for the CPU cores, what means that ARM clock is set to
800MHz and the CPU supply voltage is adjusted to that value. PMIC
configuration is preserved during the board reboot. Later when the
bootloader tries to enter the 1GHz mode, the voltage value configured by
the kernel might be not high enough for the CPU to operate stable. This
depends on the individual physical properties of each SoC (usually it is
related to the production series) and varies between the boards.
Typically most of the Odroid U3 boards work fine, while most of the U2
and X2 hangs during the reboot.

This commit switches suspend-opp to 1GHz for the Odroid U2/X2/U3 boards,
what finally fixes this issue.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-02-10 20:23:15 +01:00

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// SPDX-License-Identifier: GPL-2.0
/*
* Common definition for Hardkernel's Exynos4412 based ODROID-X/X2/U2/U3 boards
* device tree source
*/
#include <dt-bindings/sound/samsung-i2s.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/clock/maxim,max77686.h>
#include "exynos4412.dtsi"
#include "exynos4412-ppmu-common.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include "exynos-mfc-reserved-memory.dtsi"
/ {
chosen {
stdout-path = &serial_1;
};
firmware@204f000 {
compatible = "samsung,secure-firmware";
reg = <0x0204F000 0x1000>;
};
gpio_keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&gpio_power_key>;
power_key {
gpios = <&gpx1 3 GPIO_ACTIVE_LOW>;
linux,code = <KEY_POWER>;
label = "power key";
debounce-interval = <10>;
wakeup-source;
};
};
sound: sound {
compatible = "hardkernel,odroid-xu4-audio";
cpu {
sound-dai = <&i2s0 0>;
};
codec {
sound-dai = <&hdmi>, <&max98090>;
};
};
emmc_pwrseq: pwrseq {
pinctrl-0 = <&emmc_rstn>;
pinctrl-names = "default";
compatible = "mmc-pwrseq-emmc";
reset-gpios = <&gpk1 2 GPIO_ACTIVE_LOW>;
};
fixed-rate-clocks {
xxti {
compatible = "samsung,clock-xxti";
clock-frequency = <0>;
};
xusbxti {
compatible = "samsung,clock-xusbxti";
clock-frequency = <24000000>;
};
};
thermal-zones {
cpu_thermal: cpu-thermal {
cooling-maps {
cooling_map0: map0 {
/* Corresponds to 800MHz at freq_table */
cooling-device = <&cpu0 7 7>, <&cpu1 7 7>,
<&cpu2 7 7>, <&cpu3 7 7>;
};
cooling_map1: map1 {
/* Corresponds to 200MHz at freq_table */
cooling-device = <&cpu0 13 13>,
<&cpu1 13 13>,
<&cpu2 13 13>,
<&cpu3 13 13>;
};
};
};
};
};
&bus_dmc {
devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
vdd-supply = <&buck1_reg>;
status = "okay";
};
&bus_acp {
devfreq = <&bus_dmc>;
status = "okay";
};
&bus_c2c {
devfreq = <&bus_dmc>;
status = "okay";
};
&bus_leftbus {
devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
vdd-supply = <&buck3_reg>;
status = "okay";
};
&bus_rightbus {
devfreq = <&bus_leftbus>;
status = "okay";
};
&bus_display {
devfreq = <&bus_leftbus>;
status = "okay";
};
&bus_fsys {
devfreq = <&bus_leftbus>;
status = "okay";
};
&bus_peri {
devfreq = <&bus_leftbus>;
status = "okay";
};
&bus_mfc {
devfreq = <&bus_leftbus>;
status = "okay";
};
&camera {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <>;
};
&clock {
assigned-clocks = <&clock CLK_FOUT_EPLL>;
assigned-clock-rates = <45158401>;
};
&clock_audss {
assigned-clocks = <&clock_audss EXYNOS_MOUT_AUDSS>,
<&clock_audss EXYNOS_MOUT_I2S>,
<&clock_audss EXYNOS_DOUT_SRP>,
<&clock_audss EXYNOS_DOUT_AUD_BUS>,
<&clock_audss EXYNOS_DOUT_I2S>;
assigned-clock-parents = <&clock CLK_FOUT_EPLL>,
<&clock_audss EXYNOS_MOUT_AUDSS>;
assigned-clock-rates = <0>, <0>,
<196608001>,
<(196608001 / 2)>,
<(196608001 / 8)>;
};
&cpu0 {
cpu0-supply = <&buck2_reg>;
};
&cpu0_opp_table {
opp-1000000000 {
opp-suspend;
};
opp-800000000 {
/delete-property/opp-suspend;
};
};
&pinctrl_1 {
gpio_power_key: power_key {
samsung,pins = "gpx1-3";
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
};
max77686_irq: max77686-irq {
samsung,pins = "gpx3-2";
samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
};
hdmi_hpd: hdmi-hpd {
samsung,pins = "gpx3-7";
samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
};
emmc_rstn: emmc-rstn {
samsung,pins = "gpk1-2";
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
};
};
&ehci {
status = "okay";
};
&exynos_usbphy {
status = "okay";
};
&fimc_0 {
status = "okay";
assigned-clocks = <&clock CLK_MOUT_FIMC0>,
<&clock CLK_SCLK_FIMC0>;
assigned-clock-parents = <&clock CLK_MOUT_MPLL_USER_T>;
assigned-clock-rates = <0>, <176000000>;
};
&fimc_1 {
status = "okay";
assigned-clocks = <&clock CLK_MOUT_FIMC1>,
<&clock CLK_SCLK_FIMC1>;
assigned-clock-parents = <&clock CLK_MOUT_MPLL_USER_T>;
assigned-clock-rates = <0>, <176000000>;
};
&fimc_2 {
status = "okay";
assigned-clocks = <&clock CLK_MOUT_FIMC2>,
<&clock CLK_SCLK_FIMC2>;
assigned-clock-parents = <&clock CLK_MOUT_MPLL_USER_T>;
assigned-clock-rates = <0>, <176000000>;
};
&fimc_3 {
status = "okay";
assigned-clocks = <&clock CLK_MOUT_FIMC3>,
<&clock CLK_SCLK_FIMC3>;
assigned-clock-parents = <&clock CLK_MOUT_MPLL_USER_T>;
assigned-clock-rates = <0>, <176000000>;
};
&gpu {
mali-supply = <&buck4_reg>;
status = "okay";
};
&hdmi {
hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_hpd>;
vdd-supply = <&ldo8_reg>;
vdd_osc-supply = <&ldo10_reg>;
vdd_pll-supply = <&ldo8_reg>;
ddc = <&i2c_2>;
status = "okay";
};
&hdmicec {
status = "okay";
};
&hsotg {
dr_mode = "peripheral";
status = "okay";
vusb_d-supply = <&ldo15_reg>;
vusb_a-supply = <&ldo12_reg>;
};
&i2c_0 {
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <400000>;
status = "okay";
usb3503: usb3503@8 {
compatible = "smsc,usb3503";
reg = <0x08>;
intn-gpios = <&gpx3 0 GPIO_ACTIVE_HIGH>;
connect-gpios = <&gpx3 4 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpx3 5 GPIO_ACTIVE_LOW>;
initial-mode = <1>;
};
max77686: pmic@9 {
compatible = "maxim,max77686";
interrupt-parent = <&gpx3>;
interrupts = <2 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&max77686_irq>;
reg = <0x09>;
#clock-cells = <1>;
voltage-regulators {
ldo1_reg: LDO1 {
regulator-name = "VDD_ALIVE_1.0V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo2_reg: LDO2 {
regulator-name = "VDDQ_M1_2_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo3_reg: LDO3 {
regulator-name = "VDDQ_EXT_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo4_reg: LDO4 {
regulator-name = "VDDQ_MMC2_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-boot-on;
};
ldo5_reg: LDO5 {
regulator-name = "VDDQ_MMC1_3_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
};
ldo6_reg: LDO6 {
regulator-name = "VDD10_MPLL_1.0V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo7_reg: LDO7 {
regulator-name = "VDD10_XPLL_1.0V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
};
ldo8_reg: LDO8 {
regulator-name = "VDD10_HDMI_1.0V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
};
ldo10_reg: LDO10 {
regulator-name = "VDDQ_MIPIHSI_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
ldo11_reg: LDO11 {
regulator-name = "VDD18_ABB1_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
ldo12_reg: LDO12 {
regulator-name = "VDD33_USB_3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
regulator-boot-on;
};
ldo13_reg: LDO13 {
regulator-name = "VDDQ_C2C_W_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
};
ldo14_reg: LDO14 {
regulator-name = "VDD18_ABB0_2_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
};
ldo15_reg: LDO15 {
regulator-name = "VDD10_HSIC_1.0V";
regulator-min-microvolt = <1000000>;
regulator-max-microvolt = <1000000>;
regulator-always-on;
regulator-boot-on;
};
ldo16_reg: LDO16 {
regulator-name = "VDD18_HSIC_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
};
ldo20_reg: LDO20 {
regulator-name = "LDO20_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
ldo21_reg: LDO21 {
regulator-name = "TFLASH_2.8V";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-boot-on;
};
ldo22_reg: LDO22 {
/*
* Only U3 uses it, so let it define the
* constraints
*/
regulator-name = "LDO22";
regulator-boot-on;
};
ldo25_reg: LDO25 {
regulator-name = "VDDQ_LCD_1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
regulator-boot-on;
};
buck1_reg: BUCK1 {
regulator-name = "vdd_mif";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1100000>;
regulator-always-on;
regulator-boot-on;
};
buck2_reg: BUCK2 {
regulator-name = "vdd_arm";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-boot-on;
};
buck3_reg: BUCK3 {
regulator-name = "vdd_int";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1050000>;
regulator-always-on;
regulator-boot-on;
};
buck4_reg: BUCK4 {
regulator-name = "vdd_g3d";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1100000>;
regulator-microvolt-offset = <50000>;
};
buck5_reg: BUCK5 {
regulator-name = "VDDQ_CKEM1_2_1.2V";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-always-on;
regulator-boot-on;
};
buck6_reg: BUCK6 {
regulator-name = "BUCK6_1.35V";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <1350000>;
regulator-always-on;
regulator-boot-on;
};
buck7_reg: BUCK7 {
regulator-name = "BUCK7_2.0V";
regulator-min-microvolt = <2000000>;
regulator-max-microvolt = <2000000>;
regulator-always-on;
};
buck8_reg: BUCK8 {
/*
* Constraints set by specific board: X,
* X2 and U3.
*/
regulator-name = "BUCK8_2.8V";
};
};
};
};
&i2c_1 {
status = "okay";
max98090: max98090@10 {
compatible = "maxim,max98090";
reg = <0x10>;
interrupt-parent = <&gpx0>;
interrupts = <0 IRQ_TYPE_NONE>;
clocks = <&i2s0 CLK_I2S_CDCLK>;
clock-names = "mclk";
#sound-dai-cells = <0>;
};
};
&i2c_2 {
status = "okay";
};
&i2c_8 {
status = "okay";
};
&i2s0 {
pinctrl-0 = <&i2s0_bus>;
pinctrl-names = "default";
status = "okay";
assigned-clocks = <&i2s0 CLK_I2S_RCLK_SRC>;
assigned-clock-parents = <&clock_audss EXYNOS_SCLK_I2S>;
};
&mixer {
status = "okay";
};
&mshc_0 {
pinctrl-0 = <&sd4_clk &sd4_cmd &sd4_bus4 &sd4_bus8>;
pinctrl-names = "default";
vmmc-supply = <&ldo20_reg>;
mmc-pwrseq = <&emmc_pwrseq>;
status = "okay";
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>;
bus-width = <8>;
cap-mmc-highspeed;
};
&rtc {
status = "okay";
clocks = <&clock CLK_RTC>, <&max77686 MAX77686_CLK_AP>;
clock-names = "rtc", "rtc_src";
};
&sdhci_2 {
bus-width = <4>;
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
pinctrl-names = "default";
vmmc-supply = <&ldo21_reg>;
vqmmc-supply = <&ldo4_reg>;
cd-gpios = <&gpk2 2 GPIO_ACTIVE_LOW>;
status = "okay";
};
&serial_0 {
status = "okay";
};
&serial_1 {
status = "okay";
};
&tmu {
vtmu-supply = <&ldo10_reg>;
status = "okay";
};
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