arm64: dts: rockchip: Add Asus Tinker Board 3 and 3S device tree

Add initial device tree support for Asus Tinker Board 3 [1] and 3S [2],
which are SBCs based on the Rockchip 3566 SoC.

The "3S" version ("S" for "storage") just adds a 16 GB eMMC
and a "mask ROM" DIP switch (to mask the eMMC and enter "Mask ROM"
mode for recovery) to the "3" version.

This adds support for:
- Debug UART (/dev/ttyS2)
- SD card (/dev/mmcblk1)
- eMMC (/dev/mmcblk0, only on Tinker Board 3S)
- I2C:
  - i2c0 (internal bus with a PMIC and regulators)
  - i2c2 (internal bus with an at24 eeprom and an RTC device)
- USB 2.0 ports
- 2 GPIO LEDS

[1] https://tinker-board.asus.com/series/tinker-board-3.html
[2] https://tinker-board.asus.com/series/tinker-board-3s.html

Signed-off-by: Michael Opdenacker <michael.opdenacker@rootcommit.com>
Link: https://patch.msgid.link/20251118-tinker3-v3-2-2903693f2ebb@rootcommit.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index f7729e08be72b90ba5b6b00f2ecc773bb18dcf2a..dbdda9783e9391acbbe5237f9847d53315fd5223 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -130,6 +130,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-lubancat-1.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-nanopi-r3s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-bigtreetech-cb2-manta.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-bigtreetech-pi2.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-tinker-board-3.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3566-tinker-board-3s.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-9tripod-x3568-v4.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-bpi-r2-pro.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-easepi-r1.dtb

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3.dts b/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3.dts
new file mode 100644 (file)
index 0000000..9f3cdaa
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3.dts
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2025 Michael Opdenacker <michael.opdenacker@rootcommit.com>
+ */
+
+/dts-v1/;
+
+#include "rk3566-tinker-board-3.dtsi"
+
+/ {
+       model = "Asus Tinker Board 3";
+       compatible = "asus,rk3566-tinker-board-3", "rockchip,rk3566";
+};

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3.dtsi
new file mode 100644 (file)
index 0000000..d9cb73e
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3.dtsi
@@ -0,0 +1,278 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2025 Michael Opdenacker <michael.opdenacker@rootcommit.com>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/soc/rockchip,vop2.h>
+#include "rk3566.dtsi"
+
+/ {
+       aliases {
+               i2c0 = &i2c0;
+               i2c2 = &i2c2;
+               mmc1 = &sdmmc0;
+               serial2 = &uart2;
+       };
+
+       chosen {
+               stdout-path = "serial2:1500000n8";
+       };
+
+       gpio_leds: gpio-leds {
+               compatible = "gpio-leds";
+
+               act-led {
+                       gpios = <&gpio0 RK_PD4 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger="mmc1";
+               };
+
+               rsv-led {
+                       gpios = <&gpio0 RK_PD6 GPIO_ACTIVE_HIGH>;
+                       linux,default-trigger="none";
+               };
+       };
+
+       vcc3v3_sys: regulator-3v3-vcc-sys {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc3v3_sys";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+
+       vcc5v0_sys: regulator-5v0-vcc-sys {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc5v0_sys";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+       };
+
+       vcc5v0_usb_host: regulator-5v0-vcc-usb-host {
+               compatible = "regulator-fixed";
+               enable-active-high;
+               gpios = <&gpio0 RK_PA6 GPIO_ACTIVE_HIGH>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&u2_a_vbus_en>;
+               regulator-name = "vcc5v0_usb_host";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               vin-supply = <&vcc5v0_sys>;
+       };
+};
+
+&cpu0 {
+       cpu-supply = <&vdd_cpu>;
+};
+
+&cpu1 {
+       cpu-supply = <&vdd_cpu>;
+};
+
+&cpu2 {
+       cpu-supply = <&vdd_cpu>;
+};
+
+&cpu3 {
+       cpu-supply = <&vdd_cpu>;
+};
+
+&i2c0 {
+       status = "okay";
+
+       rk809: pmic@20 {
+               compatible = "rockchip,rk809";
+               reg = <0x20>;
+               assigned-clocks = <&cru I2S1_MCLKOUT_TX>;
+               assigned-clock-parents = <&cru CLK_I2S1_8CH_TX>;
+               #clock-cells = <1>;
+               clocks = <&cru I2S1_MCLKOUT_TX>;
+               clock-names = "mclk";
+               clock-output-names = "rk809-clkout1", "rk809-clkout2";
+               interrupt-parent = <&gpio0>;
+               interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pmic_int_l>, <&i2s1m0_mclk>;
+               #sound-dai-cells = <0>;
+               system-power-controller;
+               wakeup-source;
+
+               vcc1-supply = <&vcc3v3_sys>;
+               vcc2-supply = <&vcc3v3_sys>;
+               vcc3-supply = <&vcc3v3_sys>;
+               vcc4-supply = <&vcc3v3_sys>;
+               vcc5-supply = <&vcc3v3_sys>;
+               vcc6-supply = <&vcc3v3_sys>;
+               vcc7-supply = <&vcc3v3_sys>;
+               vcc8-supply = <&vcc3v3_sys>;
+               vcc9-supply = <&vcc3v3_sys>;
+
+               regulators {
+                       vcc_1v8: DCDC_REG5 {
+                               regulator-name = "vcc_1v8";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcc_3v3: SWITCH_REG1 {
+                               regulator-name = "vcc_3v3";
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vcc3v3_sd: SWITCH_REG2 {
+                               regulator-name = "vcc3v3_sd";
+                               regulator-always-on;
+                               regulator-boot-on;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+
+                       vccio_sd: LDO_REG5 {
+                               regulator-name = "vccio_sd";
+                               regulator-always-on;
+                               regulator-boot-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <3300000>;
+
+                               regulator-state-mem {
+                                       regulator-off-in-suspend;
+                               };
+                       };
+               };
+       };
+
+       vdd_cpu: regulator@40 {
+               compatible = "silergy,syr827";
+               reg = <0x40>;
+               fcs,suspend-voltage-selector = <1>;
+               regulator-name = "vdd_cpu";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <830000>;
+               regulator-max-microvolt = <1200000>;
+               regulator-ramp-delay = <2300>;
+               vin-supply = <&vcc3v3_sys>;
+
+               regulator-state-mem {
+                       regulator-off-in-suspend;
+               };
+       };
+};
+
+&i2c2 {
+       status = "okay";
+
+       eeprom@50 {
+               compatible = "atmel,24c08";
+               reg = <0x50>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&eeprom_wc_n>;
+       };
+
+       rtc_isl1208: rtc@6f {
+               compatible = "isil,isl1208";
+               reg = <0x6f>;
+               interrupt-names = "irq";
+               interrupts-extended = <&gpio0 RK_PD3 IRQ_TYPE_EDGE_FALLING>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&rtcic_int_l>;
+       };
+};
+
+&pinctrl {
+       eeprom {
+               eeprom_wc_n: eeprom-wc-n {
+                       rockchip,pins = <3 RK_PC1 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+
+       pmic {
+               pmic_int_l: pmic-int-l {
+                       rockchip,pins = <0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+
+       rtc {
+               rtcic_int_l: rtcic-int-l {
+                       rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+       };
+
+       usb {
+               u2_a_vbus_en: u2-a-vbus-en {
+                       rockchip,pins = <0 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+
+               u3_a_vbus_en: u3-a-vbus-en {
+                       rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+};
+
+&sdmmc0 {
+       bus-width = <4>;
+       cap-sd-highspeed;
+       disable-wp;
+       pinctrl-names = "default";
+       pinctrl-0 = <&sdmmc0_bus4 &sdmmc0_clk &sdmmc0_cmd &sdmmc0_det>;
+       vmmc-supply = <&vcc3v3_sd>;
+       vqmmc-supply = <&vccio_sd>;
+       status = "okay";
+};
+
+&uart2 {
+       status = "okay";
+};
+
+&usb_host0_ehci {
+       status = "okay";
+};
+
+&usb_host0_ohci {
+       status = "okay";
+};
+
+&usb_host1_ehci {
+       status = "okay";
+};
+
+&usb_host1_ohci {
+       status = "okay";
+};
+
+&usb2phy0 {
+       status = "okay";
+};
+
+&usb2phy0_host {
+       phy-supply = <&vcc5v0_usb_host>;
+       status = "okay";
+};
+
+&usb2phy1 {
+       status = "okay";
+};
+
+&usb2phy1_host {
+       phy-supply = <&vcc5v0_usb_host>;
+       status = "okay";
+};

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3s.dts b/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3s.dts
new file mode 100644 (file)
index 0000000..3624ebc
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3566-tinker-board-3s.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2025 Michael Opdenacker <michael.opdenacker@rootcommit.com>
+ */
+
+/dts-v1/;
+
+#include "rk3566-tinker-board-3.dtsi"
+
+/ {
+       model = "Asus Tinker Board 3S";
+       compatible = "asus,rk3566-tinker-board-3s", "rockchip,rk3566";
+
+       aliases {
+               mmc0 = &sdhci;
+       };
+};
+
+&sdhci {
+       bus-width = <8>;
+       cap-mmc-highspeed;
+       max-frequency = <200000000>;
+       mmc-hs200-1_8v;
+       non-removable;
+       pinctrl-names = "default";
+       pinctrl-0 = <&emmc_bus8 &emmc_clk &emmc_cmd &emmc_datastrobe>;
+       vmmc-supply = <&vcc_3v3>;
+       vqmmc-supply = <&vcc_1v8>;
+       status = "okay";
+};