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linux-loongson/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts
Kaustabh Chakraborty 2bdfa35a7b arm64: dts: exynos7870-on7xelte: reduce memory ranges to base amount 
The device is available in multiple variants with differing RAM
capacities. The memory range defined in the 0x80000000 bank exceeds the
address range of the memory controller, which eventually leads to ARM
SError crashes. Reduce the bank size to a value which is available to
all devices.

The bootloader must be responsible for identifying the RAM capacity and
editing the memory node accordingly.

Fixes: d6f3a7f91f ("arm64: dts: exynos: add initial devicetree support for exynos7870")
Cc: stable@vger.kernel.org # v6.16
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Link: https://lore.kernel.org/r/20250626-exynos7870-dts-fixes-v1-2-349987874d9a@disroot.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2025-07-05 10:23:33 +02:00

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// SPDX-License-Identifier: GPL-2.0
/*
* Samsung Galaxy J7 Prime (on7xelte) device tree source
*
* Copyright (c) 2015 Samsung Electronics Co., Ltd.
* Copyright (c) 2025 Kaustabh Chakraborty <kauschluss@disroot.org>
*/
/dts-v1/;
#include "exynos7870.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "Samsung Galaxy J7 Prime";
compatible = "samsung,on7xelte", "samsung,exynos7870";
chassis-type = "handset";
aliases {
mmc0 = &mmc0;
mmc1 = &mmc1;
mmc2 = &mmc2;
serial0 = &serial0;
serial1 = &serial1;
serial2 = &serial2;
};
chosen {
#address-cells = <2>;
#size-cells = <1>;
ranges;
stdout-path = &serial2;
framebuffer@67000000 {
compatible = "simple-framebuffer";
reg = <0x0 0x67000000 (1080 * 1920 * 4)>;
width = <1080>;
height = <1920>;
stride = <(1080 * 4)>;
format = "a8r8g8b8";
};
};
gpio-keys {
compatible = "gpio-keys";
label = "GPIO Keys";
pinctrl-names = "default";
pinctrl-0 = <&key_home &key_power &key_voldown &key_volup>;
key-home {
label = "Home Key";
gpios = <&gpa1 7 GPIO_ACTIVE_LOW>;
linux,code = <KEY_HOMEPAGE>;
};
key-power {
label = "Power Key";
gpios = <&gpa0 0 GPIO_ACTIVE_LOW>;
linux,code = <KEY_POWER>;
};
key-voldown {
label = "Volume Down Key";
gpios = <&gpa2 1 GPIO_ACTIVE_LOW>;
linux,code = <KEY_VOLUMEDOWN>;
};
key-volup {
label = "Volume Up Key";
gpios = <&gpa2 0 GPIO_ACTIVE_LOW>;
linux,code = <KEY_VOLUMEUP>;
};
};
memory@40000000 {
device_type = "memory";
reg = <0x0 0x40000000 0x3e400000>,
<0x0 0x80000000 0x80000000>;
};
pwrseq_mmc1: pwrseq-mmc1 {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpd3 6 GPIO_ACTIVE_LOW>;
};
/* mmc2: vmmc */
vdd_fixed_mmc2: regulator-fixed-mmc2 {
compatible = "regulator-fixed";
regulator-name = "vdd_fixed_mmc2";
regulator-max-microvolt = <2800000>;
regulator-min-microvolt = <2800000>;
gpio = <&gpc0 0 GPIO_ACTIVE_HIGH>;
enable-active-high;
};
reserved-memory {
#address-cells = <2>;
#size-cells = <1>;
ranges;
ramoops@46e00000 {
compatible = "ramoops";
reg = <0x0 0x46e00000 0x8000>;
console-size = <0x4000>;
pmsg-size = <0x4000>;
};
framebuffer@67000000 {
reg = <0x0 0x67000000 (1080 * 1920 * 4)>;
no-map;
};
};
vibrator {
compatible = "regulator-haptic";
haptic-supply = <&vdd_ldo32>;
min-microvolt = <3300000>;
max-microvolt = <3300000>;
};
};
&gpu {
status = "okay";
};
&hsi2c0 {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
pmic@66 {
compatible = "samsung,s2mpu05-pmic";
reg = <0x66>;
interrupt-parent = <&gpa0>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&pmic_irq>;
regulators {
vdd_buck1: buck1 {
regulator-name = "vdd_buck1";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1300000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_buck2: buck2 {
regulator-name = "vdd_buck2";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1300000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_buck3: buck3 {
regulator-name = "vdd_buck3";
regulator-min-microvolt = <500000>;
regulator-max-microvolt = <1300000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_buck4: buck4 {
regulator-name = "vdd_buck4";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1500000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_buck5: buck5 {
regulator-name = "vdd_buck5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2100000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo1: ldo1 {
regulator-name = "vdd_ldo1";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <1350000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
/* mmc2: vqmmc */
vdd_ldo2: ldo2 {
regulator-name = "vdd_ldo2";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2800000>;
regulator-ramp-delay = <12000>;
};
vdd_ldo3: ldo3 {
regulator-name = "vdd_ldo3";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <2375000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo4: ldo4 {
regulator-name = "vdd_ldo4";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1350000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo5: ldo5 {
regulator-name = "vdd_ldo5";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1350000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo6: ldo6 {
regulator-name = "vdd_ldo6";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1350000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo7: ldo7 {
regulator-name = "vdd_ldo7";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <2375000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
/* usbdrd: vdd33 */
vdd_ldo8: ldo8 {
regulator-name = "vdd_ldo8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3375000>;
regulator-ramp-delay = <12000>;
};
vdd_ldo9: ldo9 {
regulator-name = "vdd_ldo9";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <1350000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo10: ldo10 {
regulator-name = "vdd_ldo10";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <1350000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo25: ldo25 {
regulator-name = "vdd_ldo25";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <2375000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
/* mmc0: vmmc */
vdd_ldo26: ldo26 {
regulator-name = "vdd_ldo26";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3375000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
/* mmc0: vqmmc */
vdd_ldo27: ldo27 {
regulator-name = "vdd_ldo27";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <2375000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo29: ldo29 {
regulator-name = "vdd_ldo29";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo30: ldo30 {
regulator-name = "vdd_ldo30";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo31: ldo31 {
regulator-name = "vdd_ldo31";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
/* vibrator: haptic */
vdd_ldo32: ldo32 {
regulator-name = "vdd_ldo32";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-ramp-delay = <12000>;
};
vdd_ldo33: ldo33 {
regulator-name = "vdd_ldo33";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo34: ldo34 {
regulator-name = "vdd_ldo34";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-ramp-delay = <12000>;
regulator-boot-on;
regulator-always-on;
};
vdd_ldo35: ldo35 {
regulator-name = "vdd_ldo35";
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};
&i2c1 {
#address-cells = <1>;
#size-cells = <0>;
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <400000>;
status = "okay";
touchscreen@70 {
compatible = "syna,rmi4-i2c";
reg = <0x70>;
interrupt-parent = <&gpc3>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&touch_irq>;
syna,reset-delay-ms = <200>;
syna,startup-delay-ms = <200>;
rmi4-f01@1 {
reg = <0x01>;
syna,nosleep-mode = <1>;
};
rmi4-f12@12 {
reg = <0x12>;
syna,sensor-type = <1>;
syna,rezero-wait-ms = <200>;
syna,clip-x-high = <1079>;
syna,clip-y-high = <1919>;
touchscreen-x-mm = <68>;
touchscreen-y-mm = <121>;
};
};
};
&i2c7 {
#address-cells = <1>;
#size-cells = <0>;
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <400000>;
status = "okay";
accelerometer@1d {
compatible = "st,lis2hh12";
reg = <0x1d>;
interrupt-parent = <&gpa2>;
interrupts = <3 IRQ_TYPE_EDGE_RISING>;
pinctrl-names = "default";
pinctrl-0 = <&accel_irq>;
mount-matrix = "1", "0", "0",
"0", "-1", "0",
"0", "0", "-1";
st,drdy-int-pin = <1>;
};
};
&i2c8 {
#address-cells = <1>;
#size-cells = <0>;
samsung,i2c-sda-delay = <100>;
samsung,i2c-max-bus-freq = <400000>;
status = "okay";
proximity@48 {
compatible = "sensortek,stk3013", "sensortek,stk3310";
reg = <0x48>;
interrupt-parent = <&gpa0>;
interrupts = <5 IRQ_TYPE_EDGE_BOTH>;
pinctrl-names = "default";
pinctrl-0 = <&proxm_irq>;
proximity-near-level = <25>;
};
};
&mmc0 {
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_rdqs &sd0_bus1 &sd0_bus4 &sd0_bus8>;
vmmc-supply = <&vdd_ldo26>;
vqmmc-supply = <&vdd_ldo27>;
fifo-depth = <64>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <0 4>;
samsung,dw-mshc-ddr-timing = <2 4>;
non-removable;
status = "okay";
};
&mmc1 {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&sd1_clk &sd1_cmd &sd1_bus1 &sd1_bus4>;
mmc-pwrseq = <&pwrseq_mmc1>;
bus-width = <4>;
fifo-depth = <64>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <0 3>;
samsung,dw-mshc-ddr-timing = <1 2>;
non-removable;
cap-sd-highspeed;
cap-sdio-irq;
status = "okay";
wifi@1 {
compatible = "brcm,bcm43430a1-fmac", "brcm,bcm4329-fmac";
reg = <0x1>;
interrupt-names = "host-wake";
interrupt-parent = <&gpa2>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
reset-gpios = <&gpd3 6 GPIO_ACTIVE_LOW>;
};
};
&mmc2 {
pinctrl-names = "default";
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus1 &sd2_bus4 &dwmmc2_irq>;
vmmc-supply = <&vdd_fixed_mmc2>;
vqmmc-supply = <&vdd_ldo2>;
bus-width = <4>;
card-detect-delay = <200>;
fifo-depth = <64>;
samsung,dw-mshc-ciu-div = <3>;
samsung,dw-mshc-sdr-timing = <0 3>;
samsung,dw-mshc-ddr-timing = <1 2>;
sd-uhs-sdr50;
sd-uhs-sdr104;
broken-cd;
disable-wp;
status = "okay";
};
&oscclk {
clock-frequency = <26000000>;
};
&pinctrl_alive {
accel_irq: accel-irq-pins {
samsung,pins = "gpa2-3";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
dwmmc2_irq: dwmmc2-irq-pins {
samsung,pins = "gpa0-1";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
fuel_irq: fuel-irq-pins {
samsung,pins = "gpa0-3";
samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
key_home: key-home-pins {
samsung,pins = "gpa1-7";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
key_power: key-power-pins {
samsung,pins = "gpa0-0";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
key_voldown: key-voldown-pins {
samsung,pins = "gpa2-1";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
key_volup: key-volup-pins {
samsung,pins = "gpa2-0";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
pmic_irq: pmic-irq-pins {
samsung,pins = "gpa0-2";
samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR4>;
};
proxm_irq: proxm-irq-pins {
samsung,pins = "gpa0-5";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
tkey_irq: tkey-irq-pins {
samsung,pins = "gpa1-4";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
wlan_hostwake: wlan-hostwake-pins {
samsung,pins = "gpa2-2";
samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
};
};
&pinctrl_top {
bt_enable: bt-enable-pins {
samsung,pins = "gpd4-1";
samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
samsung,pin-con-pdn = <EXYNOS_PIN_PDN_PREV>;
samsung,pin-pud-pdn = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-pud = <EXYNOS_PIN_PULL_DOWN>;
};
wlan_enable: wlan-enable-pins {
samsung,pins = "gpd3-6";
samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
samsung,pin-con-pdn = <EXYNOS_PIN_PDN_PREV>;
samsung,pin-pud-pdn = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR4>;
samsung,pin-val = <0>;
};
};
&pinctrl_touch {
touch_irq: touch-irq-pins {
samsung,pins = "gpc3-2";
samsung,pin-function = <EXYNOS_PIN_FUNC_EINT>;
samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
samsung,pin-drv = <EXYNOS5433_PIN_DRV_FAST_SR1>;
};
};
&serial1 {
status = "okay";
bluetooth {
compatible = "brcm,bcm43430a1-bt";
pinctrl-names = "default";
pinctrl-0 = <&bt_btwake &bt_hostwake &bt_enable>;
device-wakeup-gpios = <&gpa1 2 GPIO_ACTIVE_HIGH>;
host-wakeup-gpios = <&gpa1 6 GPIO_ACTIVE_HIGH>;
shutdown-gpios = <&gpd4 1 GPIO_ACTIVE_HIGH>;
max-speed = <3000000>;
};
};
&serial2 {
status = "okay";
};
&usbdrd {
vdd33-supply = <&vdd_ldo8>;
status = "okay";
};
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