Add initial devicetree support for Samsung Galaxy A2 Core
(codename: a2corelte), an Exynos7870 device.
Signed-off-by: Kaustabh Chakraborty <kauschl...@disroot.org>
---
arch/arm64/boot/dts/exynos/Makefile | 1 +
.../arm64/boot/dts/exynos/exynos7870-a2corelte.dts | 629 +++++++++++++++++++++
2 files changed, 630 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/Makefile
b/arch/arm64/boot/dts/exynos/Makefile
index
a8d78d2add05ecf688ffa3a32aa5b8d1a48faf81..e0da4c4972c7344cf957e00ef701d6405a16bdcb
100644
--- a/arch/arm64/boot/dts/exynos/Makefile
+++ b/arch/arm64/boot/dts/exynos/Makefile
@@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_EXYNOS) += \
exynos5433-tm2.dtb \
exynos5433-tm2e.dtb \
exynos7-espresso.dtb \
+ exynos7870-a2corelte.dtb \
exynos7870-on7xelte.dtb \
exynos7885-jackpotlte.dtb \
exynos850-e850-96.dtb \
diff --git a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
new file mode 100644
index
0000000000000000000000000000000000000000..dabd06b8ba0a555bb4f901e763509d4ed4f0918e
--- /dev/null
+++ b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts
@@ -0,0 +1,629 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Samsung Galaxy A2 Core (a2corelte) device tree source
+ *
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2025 Kaustabh Chakraborty <kauschl...@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 A2 Core";
+ compatible = "samsung,a2corelte", "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 (540 * 960 * 4)>;
+ width = <540>;
+ height = <960>;
+ stride = <(540 * 4)>;
+ format = "a8r8g8b8";
+ };
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ label = "GPIO Keys";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&key_power &key_voldown &key_volup>;
+
+ 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 0x3f200000>;
+ };
+
+ 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;
+ };
+
+ vdd_fixed_proxled: regulator-fixed-proxled {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_fixed_proxled";
+ regulator-boot-on;
+ regulator-always-on;
+ gpio = <&gpd4 3 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges;
+
+ ramoops@46800000 {
+ compatible = "ramoops";
+ reg = <0x0 0x46800000 0x8000>;
+ console-size = <0x4000>;
+ pmsg-size = <0x4000>;
+ };
+
+ framebuffer@67000000 {
+ reg = <0x0 0x67000000 (540 * 960 * 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 = "BUCK1";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-ramp-delay = <12000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vdd_buck2: BUCK2 {
+ regulator-name = "BUCK2";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-ramp-delay = <12000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vdd_buck3: BUCK3 {
+ regulator-name = "BUCK3";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-ramp-delay = <12000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vdd_buck4: BUCK4 {
+ regulator-name = "BUCK4";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-ramp-delay = <12000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vdd_buck5: BUCK5 {
+ regulator-name = "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>;
+ };
+
+ /* mmc0: vqmmc */
+ vdd_ldo27: LDO27 {
+ regulator-name = "vdd_ldo27";
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <2375000>;
+ regulator-ramp-delay = <12000>;
+ };
+
+ vdd_ldo29: LDO29 {
+ regulator-name = "vdd_ldo29";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vdd_ldo30: LDO30 {
+ regulator-name = "vdd_ldo30";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ 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 = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-ramp-delay = <12000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ vdd_ldo34: LDO34 {
+ regulator-name = "vdd_ldo34";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-ramp-delay = <12000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ /* touchscreen: vdd */
+ vdd_ldo35: LDO35 {
+ regulator-name = "vdd_ldo35";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-ramp-delay = <12000>;
+ };
+ };
+ };
+};
+
+&i2c5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ samsung,i2c-sda-delay = <100>;
+ samsung,i2c-max-bus-freq = <400000>;
+
+ status = "okay";
+
+ accelerometer@1d {
+ compatible = "st,lis2ds12";
+ reg = <0x1d>;
+ interrupt-parent = <&gpa2>;
+ interrupts = <3 IRQ_TYPE_EDGE_RISING>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&accel_irq>;
+
+ st,drdy-int-pin = <1>;
+ };
+
+ 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>;
+ };
+};
+
+&i2c6 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ samsung,i2c-sda-delay = <100>;
+ samsung,i2c-max-bus-freq = <400000>;
+
+ status = "okay";
+
+ touchscreen@4b {
+ compatible = "syna,rmi4-i2c";
+ reg = <0x4b>;
+ interrupt-parent = <&gpa0>;
+ interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&touch_irq>;
+
+ vdd-supply = <&vdd_ldo35>;
+
+ 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 = <539>;
+ syna,clip-y-high = <959>;
+ touchscreen-x-mm = <62>;
+ touchscreen-y-mm = <110>;
+ };
+ };
+};
+
+&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>;
+ 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;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ 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_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>;
+ };
+
+ touch_irq: touch-irq-pins {
+ samsung,pins = "gpa0-6";
+ 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 = "gpd4-0";
+ 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>;
+ };
+};
+
+&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 0 GPIO_ACTIVE_HIGH>;
+
+ max-speed = <3000000>;
+ };
+};
+
+&serial2 {
+ status = "okay";
+};
+
+&usbdrd {
+ vdd33-supply = <&vdd_ldo8>;
+
+ status = "okay";
+};
--
2.48.1
