As the name implies, it is built around the RK3576 SoC with 4x Cortex-A72
cores, four Cortex-A53 cores and Mali-G52 MC3 GPU.

Storage options are EMMC, SD-Card, a 2242 M.2 slot and the possibility to
use UFS 2.0 storage.

Video Output options are a HDMI port, a DSI connector as well as Display-
Port via the TypeC connector (all of them not yet supported).

Networking options are a Low-profile Gigabit Ethernet RJ45 port with
Motorcomm YT8531 PHY as well as WiFi via an AMPAK AP6256 module.

USB ports on the board are 1x USB 3.0 port, 1x USB 2.0 port, 1x USB Type-C
and it comes with 40-pin GPIO header

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../arm64/boot/dts/rockchip/rk3576-roc-pc.dts | 745 ++++++++++++++++++
 2 files changed, 746 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index ac7574bfbf94..3562d6e64b2e 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -130,6 +130,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-display-vz.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-io-expander.dtbo
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-armsom-sige5.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-roc-pc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-armsom-sige7.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-coolpi-cm5-evb.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-coolpi-cm5-genbook.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts
new file mode 100644
index 000000000000..75ee18ef3817
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts
@@ -0,0 +1,745 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2024 Firefly Technology Co. Ltd
+ * Copyright (c) 2024 Heiko Stuebner <heiko@sntech.de>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/pwm/pwm.h>
+#include <dt-bindings/usb/pd.h>
+#include "rk3576.dtsi"
+
+/ {
+	model = "Firefly ROC-RK3576-PC";
+	compatible = "firefly,roc-rk3576-pc", "rockchip,rk3576";
+
+	aliases {
+		mmc0 = &sdhci;
+		mmc1 = &sdmmc;
+	};
+
+	chosen {
+		stdout-path = "serial0:1500000n8";
+	};
+
+	adc-keys-0 {
+		compatible = "adc-keys";
+		io-channels = <&saradc 0>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+		poll-interval = <100>;
+
+		button-maskrom {
+			label = "Maskrom";
+			linux,code = <KEY_SETUP>;
+			press-threshold-microvolt = <17000>;
+		};
+	};
+
+	adc-keys-1 {
+		compatible = "adc-keys";
+		io-channels = <&saradc 1>;
+		io-channel-names = "buttons";
+		keyup-threshold-microvolt = <1800000>;
+		poll-interval = <100>;
+
+		button-recovery {
+			label = "Recovery";
+			linux,code = <KEY_VENDOR>;
+			press-threshold-microvolt = <17000>;
+		};
+	};
+
+	vbus5v0_typec: regulator-vbus5v0-typec {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio0 RK_PD1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_otg0_pwren_h>;
+		regulator-name = "vbus5v0_typec";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_device_s0>;
+	};
+
+	vcc12v_dcin: regulator-vcc12v-dcin {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc12v_dcin";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	vcc1v2_ufs_vccq_s0: regulator-vcc1v2-ufs-vccq-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc1v2_ufs_vccq_s0";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		vin-supply = <&vcc5v0_sys_s5>;
+	};
+
+	vcc1v8_ufs_vccq2_s0: regulator-vcc1v8-ufs-vccq2-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc1v8_ufs_vccq2_s0";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc_1v8_s3>;
+	};
+
+	vcc3v3_pcie: regulator-vcc3v3-pcie {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio2 RK_PB3 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pcie_pwren_h>;
+		regulator-name = "vcc3v3_pcie";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <5000>;
+		vin-supply = <&vcc12v_dcin>;
+	};
+
+	vcc3v3_rtc_s5: regulator-vcc3v3-rtc-s5 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3_rtc_s5";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc5v0_sys_s5>;
+	};
+
+	vcc5v0_device_s0: regulator-vcc5v0-device-s0 {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio2 RK_PC0 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&vcc5vd_en>;
+		regulator-name = "vcc5v0_device";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc12v_dcin>;
+	};
+
+	vcc5v0_sys_s5: regulator-vcc5v0-sys-s5 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc12v_dcin>;
+	};
+
+	vcc5v0_usb20_host1: regulator-vcc5v0-usb20-host1 {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb3_host_pwren_h>;
+		regulator-name = "vcc5v0_host1";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc5v0_device_s0>;
+	};
+
+	vcc_1v1_nldo_s3: regulator-vcc-1v1-nldo-s3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_1v1_nldo_s3";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <1100000>;
+		regulator-max-microvolt = <1100000>;
+		vin-supply = <&vcc5v0_sys_s5>;
+	};
+
+	vcc_1v8_s0: regulator-vcc-1v8-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_1v8_s0";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vcc_1v8_s3>;
+	};
+
+	vcc_2v0_pldo_s3: regulator-vcc-2v0-pldo-s3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_2v0_pldo_s3";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <2000000>;
+		regulator-max-microvolt = <2000000>;
+		vin-supply = <&vcc5v0_sys_s5>;
+	};
+
+	vcc_3v3_s0: regulator-vcc-3v3-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3_s0";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_3v3_s3>;
+	};
+
+	vcc_ufs_s0: regulator-vcc-ufs-s0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_ufs_s0";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc5v0_sys_s5>;
+	};
+};
+
+&cpu_l0 {
+	cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l1 {
+	cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l2 {
+	cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_l3 {
+	cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
+&cpu_b0 {
+	cpu-supply = <&vdd_cpu_big_s0>;
+};
+
+&cpu_b1 {
+	cpu-supply = <&vdd_cpu_big_s0>;
+};
+
+&cpu_b2 {
+	cpu-supply = <&vdd_cpu_big_s0>;
+};
+
+&cpu_b3 {
+	cpu-supply = <&vdd_cpu_big_s0>;
+};
+
+&gpu {
+	mali-supply = <&vdd_gpu_s0>;
+	status = "okay";
+};
+
+&gmac0 {
+	/* Use rgmii-rxid mode to disable rx delay inside Soc */
+	phy-mode = "rgmii-rxid";
+	clock_in_out = "output";
+
+	snps,reset-gpio = <&gpio2 RK_PB5 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	/* Reset time is 20ms, 100ms for rtl8211f */
+	snps,reset-delays-us = <0 20000 100000>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth0m0_miim
+		     &eth0m0_tx_bus2
+		     &eth0m0_rx_bus2
+		     &eth0m0_rgmii_clk
+		     &eth0m0_rgmii_bus
+		     &ethm0_clk0_25m_out>;
+
+	tx_delay = <0x21>;
+	/* rx_delay = <0x3f>; */
+
+	phy-handle = <&rgmii_phy0>;
+	status = "okay";
+};
+
+&mdio0 {
+	status = "okay";
+
+	rgmii_phy0: phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x1>;
+		clocks = <&cru REFCLKO25M_GMAC0_OUT>;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+
+	pmic@23 {
+		compatible = "rockchip,rk806";
+		reg = <0x23>;
+
+		interrupt-parent = <&gpio0>;
+		interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
+			    <&rk806_dvs2_null>, <&rk806_dvs3_null>;
+
+		system-power-controller;
+
+		vcc1-supply = <&vcc5v0_sys_s5>;
+		vcc2-supply = <&vcc5v0_sys_s5>;
+		vcc3-supply = <&vcc5v0_sys_s5>;
+		vcc4-supply = <&vcc5v0_sys_s5>;
+		vcc5-supply = <&vcc5v0_sys_s5>;
+		vcc6-supply = <&vcc5v0_sys_s5>;
+		vcc7-supply = <&vcc5v0_sys_s5>;
+		vcc8-supply = <&vcc5v0_sys_s5>;
+		vcc9-supply = <&vcc5v0_sys_s5>;
+		vcc10-supply = <&vcc5v0_sys_s5>;
+		vcc11-supply = <&vcc_2v0_pldo_s3>;
+		vcc12-supply = <&vcc5v0_sys_s5>;
+		vcc13-supply = <&vcc_1v1_nldo_s3>;
+		vcc14-supply = <&vcc_1v1_nldo_s3>;
+		vcca-supply = <&vcc5v0_sys_s5>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		rk806_dvs1_null: dvs1-null-pins {
+			pins = "gpio_pwrctrl1";
+			function = "pin_fun0";
+		};
+
+		rk806_dvs2_null: dvs2-null-pins {
+			pins = "gpio_pwrctrl2";
+			function = "pin_fun0";
+		};
+
+		rk806_dvs3_null: dvs3-null-pins {
+			pins = "gpio_pwrctrl3";
+			function = "pin_fun0";
+		};
+
+		rk806_dvs1_slp: dvs1-slp-pins {
+			pins = "gpio_pwrctrl1";
+			function = "pin_fun1";
+		};
+
+		rk806_dvs1_pwrdn: dvs1-pwrdn-pins {
+			pins = "gpio_pwrctrl1";
+			function = "pin_fun2";
+		};
+
+		rk806_dvs1_rst: dvs1-rst-pins {
+			pins = "gpio_pwrctrl1";
+			function = "pin_fun3";
+		};
+
+		rk806_dvs2_slp: dvs2-slp-pins {
+			pins = "gpio_pwrctrl2";
+			function = "pin_fun1";
+		};
+
+		rk806_dvs2_pwrdn: dvs2-pwrdn-pins {
+			pins = "gpio_pwrctrl2";
+			function = "pin_fun2";
+		};
+
+		rk806_dvs2_rst: dvs2-rst-pins {
+			pins = "gpio_pwrctrl2";
+			function = "pin_fun3";
+		};
+
+		rk806_dvs2_dvs: dvs2-dvs-pins {
+			pins = "gpio_pwrctrl2";
+			function = "pin_fun4";
+		};
+
+		rk806_dvs2_gpio: dvs2-gpio-pins {
+			pins = "gpio_pwrctrl2";
+			function = "pin_fun5";
+		};
+
+		rk806_dvs3_slp: dvs3-slp-pins {
+			pins = "gpio_pwrctrl3";
+			function = "pin_fun1";
+		};
+
+		rk806_dvs3_pwrdn: dvs3-pwrdn-pins {
+			pins = "gpio_pwrctrl3";
+			function = "pin_fun2";
+		};
+
+		rk806_dvs3_rst: dvs3-rst-pins {
+			pins = "gpio_pwrctrl3";
+			function = "pin_fun3";
+		};
+
+		rk806_dvs3_dvs: dvs3-dvs-pins {
+			pins = "gpio_pwrctrl3";
+			function = "pin_fun4";
+		};
+
+		rk806_dvs3_gpio: dvs3-gpio-pins {
+			pins = "gpio_pwrctrl3";
+			function = "pin_fun5";
+		};
+
+		regulators {
+			vdd_cpu_big_s0: dcdc-reg1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <550000>;
+				regulator-max-microvolt = <950000>;
+				regulator-ramp-delay = <12500>;
+				regulator-name = "vdd_cpu_big_s0";
+				regulator-enable-ramp-delay = <400>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdd_npu_s0: dcdc-reg2 {
+				regulator-boot-on;
+				regulator-min-microvolt = <550000>;
+				regulator-max-microvolt = <950000>;
+				regulator-ramp-delay = <12500>;
+				regulator-name = "vdd_npu_s0";
+				regulator-enable-ramp-delay = <400>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdd_cpu_lit_s0: dcdc-reg3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <550000>;
+				regulator-max-microvolt = <950000>;
+				regulator-ramp-delay = <12500>;
+				regulator-name = "vdd_cpu_lit_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <750000>;
+				};
+			};
+
+			vcc_3v3_s3: dcdc-reg4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc_3v3_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <3300000>;
+				};
+			};
+
+			vdd_gpu_s0: dcdc-reg5 {
+				regulator-boot-on;
+				regulator-min-microvolt = <550000>;
+				regulator-max-microvolt = <900000>;
+				regulator-ramp-delay = <12500>;
+				regulator-name = "vdd_gpu_s0";
+				regulator-enable-ramp-delay = <400>;
+				regulator-state-mem {
+					regulator-off-in-suspend;
+					regulator-suspend-microvolt = <850000>;
+				};
+			};
+
+			vddq_ddr_s0: dcdc-reg6 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-name = "vddq_ddr_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdd_logic_s0: dcdc-reg7 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <550000>;
+				regulator-max-microvolt = <800000>;
+				regulator-name = "vdd_logic_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcc_1v8_s3: dcdc-reg8 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc_1v8_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vdd2_ddr_s3: dcdc-reg9 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-name = "vdd2_ddr_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+				};
+			};
+
+			vdd_ddr_s0: dcdc-reg10 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <550000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-name = "vdd_ddr_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcca_1v8_s0: pldo-reg1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcca_1v8_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcca1v8_pldo2_s0: pldo-reg2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcca1v8_pldo2_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdda_1v2_s0: pldo-reg3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-name = "vdda_1v2_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcca_3v3_s0: pldo-reg4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcca_3v3_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vccio_sd_s0: pldo-reg5 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vccio_sd_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vcca1v8_pldo6_s3: pldo-reg6 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcca1v8_pldo6_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <1800000>;
+				};
+			};
+
+			vdd_0v75_s3: nldo-reg1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <750000>;
+				regulator-name = "vdd_0v75_s3";
+				regulator-state-mem {
+					regulator-on-in-suspend;
+					regulator-suspend-microvolt = <750000>;
+				};
+			};
+
+			vdda_ddr_pll_s0: nldo-reg2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-name = "vdda_ddr_pll_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdda0v75_hdmi_s0: nldo-reg3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <837500>;
+				regulator-max-microvolt = <837500>;
+				regulator-name = "vdda0v75_hdmi_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdda_0v85_s0: nldo-reg4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <850000>;
+				regulator-max-microvolt = <850000>;
+				regulator-name = "vdda_0v85_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+
+			vdda_0v75_s0: nldo-reg5 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <750000>;
+				regulator-name = "vdda_0v75_s0";
+				regulator-state-mem {
+					regulator-off-in-suspend;
+				};
+			};
+		};
+	};
+};
+
+&i2c2 {
+	status = "okay";
+
+	/* pc9202 watchdog@3c with enable-gpio gpio0-c3 */
+
+	/* hnyetek,husb311 typec-portc@4e */
+
+	hym8563: rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-output-names = "hym8563";
+		pinctrl-names = "default";
+		pinctrl-0 = <&rtc_int_l>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PA0 IRQ_TYPE_LEVEL_LOW>;
+		wakeup-source;
+	};
+};
+
+&saradc {
+	vref-supply = <&vcca_1v8_s0>;
+	status = "okay";
+};
+
+&sdhci {
+	bus-width = <8>;
+	no-sdio;
+	no-sd;
+	non-removable;
+	max-frequency = <200000000>;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
+	full-pwr-cycle-in-suspend;
+	status = "okay";
+};
+
+&sdmmc {
+	max-frequency = <200000000>;
+	no-sdio;
+	no-mmc;
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	sd-uhs-sdr104;
+	vqmmc-supply = <&vccio_sd_s0>;
+	status = "okay";
+};
+
+&pinctrl {
+	hym8563 {
+		rtc_int_l: rtc-int-l {
+			rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	power {
+		vcc5vd_en: vcc5vd-en {
+			rockchip,pins = <2 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		pcie_pwren_h: pcie-pwren-h {
+			rockchip,pins = <2 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	usb {
+		hub_reset_h: hub-reset-h {
+			rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usb3_host_pwren_h: usb3-host-pwren-h {
+			rockchip,pins = <0 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usb_otg0_pwren_h: usb-otg0-pwren-h {
+			rockchip,pins = <0 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usbc0_int_l: usbc0-int-l {
+			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	watchdog {
+		wd_en: wd-en {
+			rockchip,pins = <0 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&uart0 {
+	pinctrl-0 = <&uart0m0_xfer>;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4m1_xfer &uart4m1_ctsn>;
+	status = "okay";
+};
+
+/* On the extension pin header */
+&uart6 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart6m3_xfer>;
+	status = "okay";
+};
-- 
2.45.2

Hi Heiko,

On 2024-11-17 21:18, Heiko Stuebner wrote:
> As the name implies, it is built around the RK3576 SoC with 4x Cortex-A72
> cores, four Cortex-A53 cores and Mali-G52 MC3 GPU.
> 
> Storage options are EMMC, SD-Card, a 2242 M.2 slot and the possibility to
> use UFS 2.0 storage.
> 
> Video Output options are a HDMI port, a DSI connector as well as Display-
> Port via the TypeC connector (all of them not yet supported).
> 
> Networking options are a Low-profile Gigabit Ethernet RJ45 port with
> Motorcomm YT8531 PHY as well as WiFi via an AMPAK AP6256 module.
> 
> USB ports on the board are 1x USB 3.0 port, 1x USB 2.0 port, 1x USB Type-C
> and it comes with 40-pin GPIO header
> 
> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
> ---
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../arm64/boot/dts/rockchip/rk3576-roc-pc.dts | 745 ++++++++++++++++++
>  2 files changed, 746 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts
> 
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index ac7574bfbf94..3562d6e64b2e 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -130,6 +130,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-display-vz.dtbo
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-wolfvision-pf5-io-expander.dtbo
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-armsom-sige5.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-roc-pc.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-armsom-sige7.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-coolpi-cm5-evb.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-coolpi-cm5-genbook.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts b/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts
> new file mode 100644
> index 000000000000..75ee18ef3817
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3576-roc-pc.dts

[snip]

> +&gmac0 {
> +	/* Use rgmii-rxid mode to disable rx delay inside Soc */
> +	phy-mode = "rgmii-rxid";
> +	clock_in_out = "output";
> +
> +	snps,reset-gpio = <&gpio2 RK_PB5 GPIO_ACTIVE_LOW>;
> +	snps,reset-active-low;
> +	/* Reset time is 20ms, 100ms for rtl8211f */
> +	snps,reset-delays-us = <0 20000 100000>;

The snps,reset- props are deprecated, reset- props should probably be
added to the rgmii_phy0 node.

> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&eth0m0_miim
> +		     &eth0m0_tx_bus2
> +		     &eth0m0_rx_bus2
> +		     &eth0m0_rgmii_clk
> +		     &eth0m0_rgmii_bus
> +		     &ethm0_clk0_25m_out>;
> +
> +	tx_delay = <0x21>;
> +	/* rx_delay = <0x3f>; */
> +
> +	phy-handle = <&rgmii_phy0>;
> +	status = "okay";
> +};
> +
> +&mdio0 {
> +	status = "okay";
> +
> +	rgmii_phy0: phy@1 {
> +		compatible = "ethernet-phy-ieee802.3-c22";

This could possible be changed to ethernet-phy-id001c.c916 if moving
reset- props cause Ethernet phy detection issues and phy was not reset
by bootloader.

Regards,
Jonas

> +		reg = <0x1>;
> +		clocks = <&cru REFCLKO25M_GMAC0_OUT>;
> +	};
> +};
> +

[snip]