[PATCH v1 0/3] Add Luckfox Omni3576 Carrier Board support for RK3576

[PATCH v1 0/3] Add Luckfox Omni3576 Carrier Board support for RK3576

[John Clark]

This series adds device tree support for the Luckfox Omni3576 Carrier Board
with Core3576 Module, developed by Shenzhen Luckfox Technology Co., Ltd., based
on the Rockchip RK3576 SoC. The board supports various peripherals, with this
initial implementation enabling essential functionality for booting Linux and
basic connectivity.

Supported and tested features (on Linux 6.15-rc4):
- UART: Serial console operational.
- SD card: Mounts and reads/writes successfully.
- PCIe: NVMe SSD detected via lspci.
- Ethernet 0: Functional with RGMII PHY.
- USB: Host ports detect devices.
- RTC: Timekeeping and wake-up tested.
- LED: Heartbeat trigger works.

Disabled features:
- eMMC: Not populated on the tested board; believed to be functional but disabled.
- HDMI: Disabled due to mainline driver maturity issues (basic 1080p output works; audio and 4K untested).
- Ethernet 1: Disabled as it does not come up, possibly due to PHY configuration or driver issues.

Patch 1: Add luckfox vendor prefix for Shenzhen Luckfox Technology Co., Ltd.
Patch 2: Add luckfox,omni3576 binding to rockchip.yaml
Patch 3: Add rk3576-luckfox-omni3576.dts and Makefile update

The new DTS is covered by the existing ROCKCHIP ARCHITECTURE entry in MAINTAINERS.

I am aware of ongoing RK3576 upstreaming efforts (e.g., by Collabora) and
welcome feedback or collaboration to align with mainline driver development.

Signed-off-by: John Clark <inindev@gmail.com>

[PATCH v1 1/3] dt-bindings: vendor-prefixes: Add luckfox prefix

[John Clark]

Add vendor prefix for Shenzhen Luckfox Technology Co., Ltd., which
produces development boards like the Luckfox Omni3576.

Signed-off-by: John Clark <inindev@gmail.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 86f6a19b28ae..9391e0c31bb8 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -892,6 +892,8 @@ patternProperties:
     description: Liebherr-Werk Nenzing GmbH
   "^lxa,.*":
     description: Linux Automation GmbH
+  "^luckfox,.*":
+    description: Shenzhen Luckfox Technology Co., Ltd.
   "^m5stack,.*":
     description: M5Stack
   "^macnica,.*":
-- 
2.39.5

[PATCH v1 2/3] dt-bindings: arm: rockchip: Add Luckfox Omni3576 board

[John Clark]

Add device tree binding for the Luckfox Omni3576 Carrier Board with
Core3576 Module, based on the Rockchip RK3576 SoC.

Signed-off-by: John Clark <inindev@gmail.com>
---
 Documentation/devicetree/bindings/arm/rockchip.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 455fbb290b77..225a2d9e4d94 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -715,6 +715,11 @@ properties:
           - const: lckfb,tspi-rk3566
           - const: rockchip,rk3566
 
+      - description: Luckfox Omni3576 Carrier Board with Core3576 Module
+        items:
+          - const: luckfox,omni3576
+          - const: rockchip,rk3576
+
       - description: Lunzn FastRhino R66S / R68S
         items:
           - enum:
-- 
2.39.5

[PATCH v1 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Carrier Board with Core3576 Module

[John Clark]

Add device tree for the Luckfox Omni3576 Carrier Board, powered by the
Rockchip RK3576 SoC, with four Cortex-A72 cores, four Cortex-A53 cores,
and a Mali-G52 MC3 GPU. The board includes the Core3576 Module and supports
a wide range of peripherals, with this initial implementation enabling
essential functionality for booting Linux and basic connectivity.

Supported and tested features in this device tree:
 - UART for serial console
 - SD card for storage
 - Gigabit Ethernet 0 with RGMII PHY
 - USB host and OTG ports
 - PCIe interface
 - RK806 PMIC for power management
 - RTC and power key
 - GPIO-controlled LED

Disabled features:
 - HDMI: Disabled due to driver maturity issues.
 - Ethernet 1: Disabled as it does not come up, possibly due to PHY
               configuration or driver issues.

The device tree provides a foundation for further peripheral support, such
as WiFi, MIPI-DSI, HDMI, and Ethernet 1, in future updates.

Tested on Linux 6.15-rc4

Signed-off-by: John Clark <inindev@gmail.com>
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3576-luckfox-omni3576.dts  | 779 ++++++++++++++++++
 2 files changed, 780 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 7948522cb225..22d74367b7e6 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -136,6 +136,7 @@ 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-evb1-v10.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-luckfox-omni3576.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-roc-pc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-rock-4d.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3582-radxa-e52c.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts b/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
new file mode 100644
index 000000000000..0bdb24b93041
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
@@ -0,0 +1,779 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2024 Rockchip Electronics Co., Ltd.
+ *
+ */
+
+/dts-v1/;
+
+#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 "rk3576.dtsi"
+
+/ {
+	model = "Luckfox Omni3576";
+	compatible = "luckfox,omni3576", "rockchip,rk3576";
+
+	aliases {
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
+		mmc0 = &sdhci;
+		mmc1 = &sdmmc;
+	};
+
+	chosen {
+		stdout-path = "serial0:1500000n8";
+	};
+
+	hdmi-con {
+		compatible = "hdmi-connector";
+		hdmi-pwr-supply = <&vcc_5v0_hdmi>;
+		type = "a";
+
+		port {
+			hdmi_con_in: endpoint {
+				remote-endpoint = <&hdmi_out_con>;
+			};
+		};
+	};
+
+	leds: leds {
+		compatible = "gpio-leds";
+
+		green_led: green-led {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_HEARTBEAT;
+			gpios = <&gpio1 RK_PD5 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	vcc_5v0_dcin: regulator-vcc-5v0-dcin {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_dcin";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	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 = <&vcc_5v0_sys>;
+	};
+
+	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 = <&vcc_5v0_sys>;
+	};
+
+	vcc_3v3_pcie: regulator-vcc-3v3-pcie {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pcie_pwr_en>;
+		regulator-name = "vcc_3v3_pcie";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		enable-active-high;
+		gpio = <&gpio4 RK_PA0 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <1000>;
+		vin-supply = <&vcc_5v0_sys>;
+	};
+
+	vcc_3v3_rtc_s5: regulator-vcc-3v3-rtc-s5 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3_rtc_s5";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_5v0_sys>;
+	};
+
+	vbus_5v0_typec: regulator-vbus-5v0-typec {
+		compatible = "regulator-fixed";
+		regulator-name = "vbus5v0_typec";
+		enable-active-high;
+		gpio = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_otg0_pwr_en>;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0_device>;
+	};
+
+	vcc_5v0_host: regulator-vcc-5v0-host {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_host";
+		enable-active-high;
+		gpio = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_host_pwr_en>;
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0_device>;
+	};
+
+	vcc_5v0_sys: regulator-vcc-5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0_dcin>;
+	};
+
+	vcc_5v0_device: regulator-vcc-5v0-device {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_device";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0_dcin>;
+	};
+
+	vcc_5v0_hdmi: regulator-vcc-5v0-hdmi {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_hdmi";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		regulator-boot-on;
+		enable-active-high;
+		gpio = <&gpio4 RK_PC6 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_con_en>;
+		vin-supply = <&vcc_5v0_sys>;
+	};
+};
+
+&combphy0_ps {
+	status = "okay";
+};
+
+&combphy1_psu {
+	status = "okay";
+};
+
+&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>;
+};
+
+&gmac0 {
+	clock_in_out = "output";
+	phy-mode = "rgmii-rxid";
+	phy-handle = <&rgmii_phy0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth0m0_miim
+		     &eth0m0_tx_bus2
+		     &eth0m0_rx_bus2
+		     &eth0m0_rgmii_clk
+		     &eth0m0_rgmii_bus
+		     &ethm0_clk0_25m_out>;
+	snps,reset-gpio = <&gpio2 RK_PB3 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 20000 100000>;
+	tx_delay = <0x20>;
+	status = "okay";
+};
+
+&gmac1 {
+	clock_in_out = "output";
+	phy-handle = <&rgmii_phy1>;
+	phy-mode = "rgmii-rxid";
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth1m0_miim
+		     &eth1m0_tx_bus2
+		     &eth1m0_rx_bus2
+		     &eth1m0_rgmii_clk
+		     &eth1m0_rgmii_bus
+		     &ethm0_clk1_25m_out>;
+	snps,reset-gpio = <&gpio2 RK_PB4 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 20000 100000>;
+	tx_delay = <0x20>;
+	status = "disabled";
+};
+
+&gpu {
+	mali-supply = <&vdd_gpu_s0>;
+	status = "okay";
+};
+
+&hdmi {
+	status = "disabled";
+};
+
+&hdmi_in {
+	hdmi_in_vp0: endpoint {
+		remote-endpoint = <&vp0_out_hdmi>;
+	};
+};
+
+&hdmi_out {
+	hdmi_out_con: endpoint {
+		remote-endpoint = <&hdmi_con_in>;
+	};
+};
+
+&hdptxphy {
+	phy-supply = <&vdda0v75_hdmi_s0>;
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+
+	pmic@23 {
+		compatible = "rockchip,rk806";
+		reg = <0x23>;
+		#gpio-cells = <2>;
+		gpio-controller;
+		interrupt-parent = <&gpio0>;
+		interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default", "pmic-power-off";
+		pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
+			    <&rk806_dvs2_null>, <&rk806_dvs3_null>;
+		pinctrl-1 = <&rk806_dvs1_pwrdn>;
+		system-power-controller;
+
+		vcc1-supply = <&vcc_5v0_sys>;
+		vcc2-supply = <&vcc_5v0_sys>;
+		vcc3-supply = <&vcc_5v0_sys>;
+		vcc4-supply = <&vcc_5v0_sys>;
+		vcc5-supply = <&vcc_5v0_sys>;
+		vcc6-supply = <&vcc_5v0_sys>;
+		vcc7-supply = <&vcc_5v0_sys>;
+		vcc8-supply = <&vcc_5v0_sys>;
+		vcc9-supply = <&vcc_5v0_sys>;
+		vcc10-supply = <&vcc_5v0_sys>;
+		vcc11-supply = <&vcc_2v0_pldo_s3>;
+		vcc12-supply = <&vcc_5v0_sys>;
+		vcc13-supply = <&vcc_1v1_nldo_s3>;
+		vcc14-supply = <&vcc_1v1_nldo_s3>;
+		vcca-supply = <&vcc_5v0_sys>;
+
+		pwrkey {
+			status = "okay";
+		};
+
+		rk806_dvs1_null: dvs1-null-pins {
+			pins = "gpio_pwrctrl2";
+			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";
+	hym8563: rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-output-names = "hym8563";
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PA5 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hym8563_int>;
+		wakeup-source;
+	};
+};
+
+&mdio0 {
+	rgmii_phy0: phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x0>;
+		clocks = <&cru REFCLKO25M_GMAC0_OUT>;
+	};
+};
+
+&mdio1 {
+	rgmii_phy1: phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x0>;
+		clocks = <&cru REFCLKO25M_GMAC1_OUT>;
+	};
+};
+
+&pcie0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_reset>;
+	reset-gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&vcc_3v3_pcie>;
+	status = "okay";
+};
+
+&pinctrl {
+	hdmi {
+		hdmi_con_en: hdmi-con-en {
+			rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	hym8563 {
+		hym8563_int: hym8563-int {
+			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	leds {
+		led_green_pin: led-green-pin {
+			rockchip,pins = <1 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	pcie {
+		pcie_pwr_en: pcie-pwr-en {
+			rockchip,pins = <4 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		pcie_reset: pcie-reset {
+			rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	usb {
+		usb_host_pwr_en: usb-host-pwr-en {
+			rockchip,pins = <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usb_otg0_pwr_en: usb-otg0-pwr-en {
+			rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usbc0_int: usbc0-int {
+			rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+};
+
+&saradc {
+	status = "okay";
+	vref-supply = <&vcca_1v8_s0>;
+};
+
+&sdhci {
+	bus-width = <8>;
+	full-pwr-cycle-in-suspend;
+	max-frequency = <200000000>;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
+	no-sdio;
+	no-sd;
+	non-removable;
+	status = "okay";
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	max-frequency = <200000000>;
+	no-sdio;
+	no-mmc;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc_3v3_s3>;
+	vqmmc-supply = <&vccio_sd_s0>;
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4m1_xfer &uart4m1_ctsn>;
+	status = "okay";
+};
+
+&u2phy1 {
+	status = "okay";
+};
+
+&u2phy1_otg {
+	phy-supply = <&vcc_5v0_host>;
+	status = "okay";
+};
+
+&usb_drd1_dwc3 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&vop {
+	vop-supply = <&vdd_logic_s0>;
+	status = "okay";
+};
+
+&vop_mmu {
+	status = "okay";
+};
+
+&vp0 {
+	vp0_out_hdmi: endpoint@ROCKCHIP_VOP2_EP_HDMI0 {
+		reg = <ROCKCHIP_VOP2_EP_HDMI0>;
+		remote-endpoint = <&hdmi_in_vp0>;
+	};
+};
-- 
2.39.5

Re: [PATCH v1 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Carrier Board with Core3576 Module

[Andrew Lunn]

> +&gmac1 {
> +	clock_in_out = "output";
> +	phy-handle = <&rgmii_phy1>;
> +	phy-mode = "rgmii-rxid";

This is unlikely to be correct. It probably works, but that does not
make it correct.

> +	pinctrl-names = "default";
> +	pinctrl-0 = <&eth1m0_miim
> +		     &eth1m0_tx_bus2
> +		     &eth1m0_rx_bus2
> +		     &eth1m0_rgmii_clk
> +		     &eth1m0_rgmii_bus
> +		     &ethm0_clk1_25m_out>;
> +	snps,reset-gpio = <&gpio2 RK_PB4 GPIO_ACTIVE_LOW>;
> +	snps,reset-active-low;
> +	snps,reset-delays-us = <0 20000 100000>;
> +	tx_delay = <0x20>;
> +	status = "disabled";
> +};

Please see the discussion about rgmii delays with other rockchip
boards from the last week, and

https://patchwork.kernel.org/project/netdevbpf/patch/20250430-v6-15-rc3-net-rgmii-delays-v2-1-099ae651d5e5@lunn.ch/

	Andrew

Re: [PATCH v1 0/3] Add Luckfox Omni3576 Carrier Board support for RK3576

[Nicolas Frattaroli]

On Friday, 2 May 2025 22:55:30 Central European Summer Time John Clark wrote:
> This series adds device tree support for the Luckfox Omni3576 Carrier Board
> with Core3576 Module, developed by Shenzhen Luckfox Technology Co., Ltd., based
> on the Rockchip RK3576 SoC. The board supports various peripherals, with this
> initial implementation enabling essential functionality for booting Linux and
> basic connectivity.
> 
> Supported and tested features (on Linux 6.15-rc4):
> - UART: Serial console operational.
> - SD card: Mounts and reads/writes successfully.
> - PCIe: NVMe SSD detected via lspci.
> - Ethernet 0: Functional with RGMII PHY.
> - USB: Host ports detect devices.
> - RTC: Timekeeping and wake-up tested.
> - LED: Heartbeat trigger works.

Hi John,

> 
> Disabled features:
> - eMMC: Not populated on the tested board; believed to be functional but disabled.
> - HDMI: Disabled due to mainline driver maturity issues (basic 1080p output works; audio and 4K untested).

that's not a good reason to disable the node, in my eyes. HDMI 2.0 4K output 
should work AFAIK, HDMI audio will land with the already posted SAI audio 
controller patch set. Is there any specific issue like an SoC lock-up you ran 
into that is keeping you from enabling it? If so, please do let the mailing list 
know.

> - Ethernet 1: Disabled as it does not come up, possibly due to PHY configuration or driver issues.
> 
> Patch 1: Add luckfox vendor prefix for Shenzhen Luckfox Technology Co., Ltd.
> Patch 2: Add luckfox,omni3576 binding to rockchip.yaml
> Patch 3: Add rk3576-luckfox-omni3576.dts and Makefile update
> 
> The new DTS is covered by the existing ROCKCHIP ARCHITECTURE entry in MAINTAINERS.
> 
> I am aware of ongoing RK3576 upstreaming efforts (e.g., by Collabora) and
> welcome feedback or collaboration to align with mainline driver development.

I can't speak for the longer term outlook as that's neither my area of expertise
nor my position to make statements about that, but I can give a general overview
of what I myself am working on right now in relation to the RK3576. The general
theme is that most of the low-hanging fruit has already been plucked, so the
bigger drivers remain.

- RK3576 USB Type-C OTG stuff: the USB 2 PHY driver needed some changes to make
  this work. I've yet to send out v2 that reworks the way we detect a type-C
  port, but that part of the code is already done. I was basically just letting
  it stew on my local machine for a bit longer to see if I can figure out why
  superspeed only works in one cable orientation, and to give the mailing list
  some room to breathe, as I've been sending quite a bit of stuff lately.
- RK3576 HWRNG: has already been posted by me, and it's a small enough series
  that I don't see many problems on the horizon with it.
- RK3576 eMMC PD fix: this needed a few revisions but was merged just recently
- RK3576 Thermal ADC: v5 is currently awaiting review, and it's quite a mature
  series by now.
- RK3576 SAI (Audio Output): driver + binding already merged, sent out a v3
  recently to fix an issue with the clock driver part of that patch series.
- RK3576 PWM: v1 of my MFPWM patch series needs some changes. I plan on getting
  around to this in the coming week, bar any other more pressing things on my
  table.
- RK3576 SATA: I sent a tiny patch series to enable this, and it was already
  merged in time for v6.16.

If you do want a small driver to work on that should be easy to port to mainline
and hasn't been done yet, I recommend SPDIFRX. You can find it in
`sound/soc/rockchip/rockchip_spdifrx.c` in the vendor tree. It's around 400
lines, and on your board you should be able to have a pin on the 40-pin header
that can be set to pinmux to the SPDIFRX controller, namely pin 35, aka
GPIO4_B2, aka the third-to-last pin on the side that ends with a GND. You will
need some source of an SPDIF audio signal at the right voltage for that. The
most humorous choice is either the board itself or another Rockchip SBC.

If the driver is a straight-forward port and minor cleanup, leaving the original
author in place for the patch sent upstream is the courteous thing to do. If
there's more work involved than just a few lines changed or downstream-specific
parts deleted, I usually like to include the original author with their signoff
in a `Co-developed-by:` tag, to give credit where credit is due.

I should also mention that Collabora has a public issue tracker on our GitLab
to keep track of Rockchip upstreaming matters. An issue being on it doesn't
necessarily mean that we have any plans to work on it, it just means an engineer
remembered this was a thing and noted it down. Things we actively are working
on are usually assigned to a specific person, unless said person (me, usually)
forgets to do so. You can find it here:
https://gitlab.collabora.com/hardware-enablement/rockchip-3588/linux/-/issues

> 
> Signed-off-by: John Clark <inindev@gmail.com>
> 

Kind regards,
Nicolas Frattaroli

Re: [PATCH v1 0/3] Add Luckfox Omni3576 Carrier Board support for RK3576

[Heiko Stübner]

Hi,

Am Sonntag, 4. Mai 2025, 01:39:56 Mitteleuropäische Sommerzeit schrieb Nicolas Frattaroli:
> On Friday, 2 May 2025 22:55:30 Central European Summer Time John Clark wrote:
> > Disabled features:
> > - eMMC: Not populated on the tested board; believed to be functional but disabled.
> > - HDMI: Disabled due to mainline driver maturity issues (basic 1080p output works; audio and 4K untested).
> 
> that's not a good reason to disable the node, in my eyes. HDMI 2.0 4K output 
> should work AFAIK, HDMI audio will land with the already posted SAI audio 
> controller patch set. Is there any specific issue like an SoC lock-up you ran 
> into that is keeping you from enabling it? If so, please do let the mailing list 
> know.

Also a more general point, Devicetree is supposed to describe the hardware
and both emmc and hdmi do work on a hw-level and have reviewed bindings,
so the node can be enabled and also any functionality improvement should
just affect the kernel driver-side.

And in my testing on the rk3576 firefly, I also got a working 3440x1440
on my display. So not a full 4k, but nearly there :-) .


> - RK3576 USB Type-C OTG stuff: the USB 2 PHY driver needed some changes to make
>   this work. I've yet to send out v2 that reworks the way we detect a type-C
>   port, but that part of the code is already done. I was basically just letting
>   it stew on my local machine for a bit longer to see if I can figure out why
>   superspeed only works in one cable orientation,

That is probably the same issue, I have on rk3588, the type-c phy not
changing its settings and waiting for the dwc3 to re-start, which it never
does.

See [0], [1] ... but importantly Ondřej Jirman's response on why my approach
is probably wrong [2].

At this time, I don't know when I get around to look at that again, so
if someone wants to give it a try, feel free to :-)


Heiko


[0] https://lore.kernel.org/r/20250225184519.3586926-1-heiko@sntech.de
[1] https://lore.kernel.org/r/20250226103810.3746018-1-heiko@sntech.de
[2] https://lore.kernel.org/r/h57ok2hw6os7bcafqkrqknfvm7hnu25m2oe54qmrsuzdwqlos3@m4och2fcdm7s

[PATCH v2 0/3] Add Luckfox Omni3576 Carrier Board support for RK3576

[John Clark]

This series adds device tree support for the Luckfox Omni3576 Carrier Board
with Core3576 Module, based on the Rockchip RK3576 SoC, enabling essential
functionality for booting Linux and basic connectivity. v1 was posted at:
https://lore.kernel.org/linux-rockchip/20250502205533.51744-1-inindev@gmail.com

Tested features (on Linux 6.15-rc4):
 - UART: Serial console operational
 - SD card: Mounts and reads/writes successfully
 - PCIe: NVMe SSD detected, mounted, and fully functional
 - Ethernet 0: Functional with RGMII PHY
 - USB 2.0: Host ports
 - RTC: Timekeeping and wake-up tested
 - LED: Heartbeat trigger works
 - eMMC: Enabled, not populated on tested board

The series includes the following patches:
 1. dt-bindings: vendor-prefixes: Add Luckfox vendor prefix
 2. dt-bindings: arm: rockchip: Add luckfox,omni3576 binding
 3. arm64: dts: rockchip: Add Luckfox Omni3576 Board support

The new DTS is covered by the existing ROCKCHIP ARCHITECTURE entry in MAINTAINERS.

I am aware of ongoing RK3576 upstreaming efforts (e.g., by Collabora) and
welcome feedback or collaboration to align with mainline driver development.

Changes in v2:
 - Enabled HDMI node per feedback from Heiko and Nicolas; untested due to
   upstream driver issues
 - Enabled Ethernet 1 node per Heiko's DT philosophy; untested due to
   suspected PHY driver or configuration issues
 - Clarified eMMC remains enabled but unpopulated on tested board, per Heiko

Signed-off-by: John Clark <inindev@gmail.com>
---
John Clark (3):
  dt-bindings: vendor-prefixes: Add luckfox prefix
  dt-bindings: arm: rockchip: Add Luckfox Omni3576 board
  arm64: dts: rockchip: Add Luckfox Omni3576 Board support

 .../devicetree/bindings/arm/rockchip.yaml     |   5 +
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3576-luckfox-omni3576.dts  | 779 ++++++++++++++++++
 4 files changed, 787 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts

-- 
2.39.5

[PATCH v2 1/3] dt-bindings: vendor-prefixes: Add luckfox prefix

[John Clark]

Add vendor prefix for Shenzhen Luckfox Technology Co., Ltd., which
produces development boards like the Luckfox Omni3576.

Signed-off-by: John Clark <inindev@gmail.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 86f6a19b28ae..9391e0c31bb8 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -892,6 +892,8 @@ patternProperties:
     description: Liebherr-Werk Nenzing GmbH
   "^lxa,.*":
     description: Linux Automation GmbH
+  "^luckfox,.*":
+    description: Shenzhen Luckfox Technology Co., Ltd.
   "^m5stack,.*":
     description: M5Stack
   "^macnica,.*":
-- 
2.39.5

Re: [PATCH v2 1/3] dt-bindings: vendor-prefixes: Add luckfox prefix

[Krzysztof Kozlowski]

On Sun, May 04, 2025 at 06:24:45AM GMT, John Clark wrote:
> Add vendor prefix for Shenzhen Luckfox Technology Co., Ltd., which
> produces development boards like the Luckfox Omni3576.
> 
> Signed-off-by: John Clark <inindev@gmail.com>
> ---

Do not attach (thread) your patchsets to some other threads (unrelated
or older versions). This buries them deep in the mailbox and might
interfere with applying entire sets.

>  Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
>  1 file changed, 2 insertions(+)
> 

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

---

<form letter>
This is an automated instruction, just in case, because many review tags
are being ignored. If you know the process, you can skip it (please do
not feel offended by me posting it here - no bad intentions intended).
If you do not know the process, here is a short explanation:

Please add Acked-by/Reviewed-by/Tested-by tags when posting new
versions of patchset, under or above your Signed-off-by tag, unless
patch changed significantly (e.g. new properties added to the DT
bindings). Tag is "received", when provided in a message replied to you
on the mailing list. Tools like b4 can help here. However, there's no
need to repost patches *only* to add the tags. The upstream maintainer
will do that for tags received on the version they apply.

https://elixir.bootlin.com/linux/v6.12-rc3/source/Documentation/process/submitting-patches.rst#L577
</form letter>


Best regards,
Krzysztof

[PATCH v2 2/3] dt-bindings: arm: rockchip: Add Luckfox Omni3576 board

[John Clark]

Add device tree binding for the Luckfox Omni3576 Carrier Board with
Core3576 Module, based on the Rockchip RK3576 SoC.

Signed-off-by: John Clark <inindev@gmail.com>
---
 Documentation/devicetree/bindings/arm/rockchip.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index 455fbb290b77..225a2d9e4d94 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -715,6 +715,11 @@ properties:
           - const: lckfb,tspi-rk3566
           - const: rockchip,rk3566
 
+      - description: Luckfox Omni3576 Carrier Board with Core3576 Module
+        items:
+          - const: luckfox,omni3576
+          - const: rockchip,rk3576
+
       - description: Lunzn FastRhino R66S / R68S
         items:
           - enum:
-- 
2.39.5

Re: [PATCH v2 2/3] dt-bindings: arm: rockchip: Add Luckfox Omni3576 board

[Krzysztof Kozlowski]

On Sun, May 04, 2025 at 06:24:46AM GMT, John Clark wrote:
> Add device tree binding for the Luckfox Omni3576 Carrier Board with
> Core3576 Module, based on the Rockchip RK3576 SoC.
> 
> Signed-off-by: John Clark <inindev@gmail.com>
> ---
>  Documentation/devicetree/bindings/arm/rockchip.yaml | 5 +++++
>  1 file changed, 5 insertions(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

[PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[John Clark]

Add device tree for the Luckfox Omni3576 Carrier Board with Core3576
Module, powered by the Rockchip RK3576 SoC with four Cortex-A72 cores,
four Cortex-A53 cores, and a Mali-G52 MC3 GPU. This initial
implementation enables essential functionality for booting Linux and
basic connectivity.

Supported and tested features:
 - UART for serial console
 - SD card for storage
 - PCIe with NVMe SSD (detected, mounted, and fully functional)
 - Gigabit Ethernet 0 with RGMII PHY
 - USB 2.0 host ports
 - RK806 PMIC for power management
 - RTC with timekeeping and wake-up
 - GPIO-controlled LED with heartbeat trigger
 - eMMC (enabled, not populated on tested board)

The device tree provides a foundation for further peripheral support, such
as WiFi, MIPI-DSI, HDMI, and Ethernet 1, in future updates.

Tested on Linux 6.15-rc4

Signed-off-by: John Clark <inindev@gmail.com>
---
 arch/arm64/boot/dts/rockchip/Makefile         |   1 +
 .../dts/rockchip/rk3576-luckfox-omni3576.dts  | 779 ++++++++++++++++++
 2 files changed, 780 insertions(+)
 create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts

diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index 7948522cb225..22d74367b7e6 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -136,6 +136,7 @@ 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-evb1-v10.dtb
+dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-luckfox-omni3576.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-roc-pc.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-rock-4d.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3582-radxa-e52c.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts b/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
new file mode 100644
index 000000000000..73351ba7830c
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
@@ -0,0 +1,779 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2024 Rockchip Electronics Co., Ltd.
+ *
+ */
+
+/dts-v1/;
+
+#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 "rk3576.dtsi"
+
+/ {
+	model = "Luckfox Omni3576";
+	compatible = "luckfox,omni3576", "rockchip,rk3576";
+
+	aliases {
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
+		mmc0 = &sdhci;
+		mmc1 = &sdmmc;
+	};
+
+	chosen {
+		stdout-path = "serial0:1500000n8";
+	};
+
+	hdmi-con {
+		compatible = "hdmi-connector";
+		hdmi-pwr-supply = <&vcc_5v0_hdmi>;
+		type = "a";
+
+		port {
+			hdmi_con_in: endpoint {
+				remote-endpoint = <&hdmi_out_con>;
+			};
+		};
+	};
+
+	leds: leds {
+		compatible = "gpio-leds";
+
+		green_led: green-led {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_HEARTBEAT;
+			gpios = <&gpio1 RK_PD5 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	vcc_5v0_dcin: regulator-vcc-5v0-dcin {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_dcin";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	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 = <&vcc_5v0_sys>;
+	};
+
+	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 = <&vcc_5v0_sys>;
+	};
+
+	vcc_3v3_pcie: regulator-vcc-3v3-pcie {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pcie_pwr_en>;
+		regulator-name = "vcc_3v3_pcie";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		enable-active-high;
+		gpio = <&gpio4 RK_PA0 GPIO_ACTIVE_HIGH>;
+		startup-delay-us = <1000>;
+		vin-supply = <&vcc_5v0_sys>;
+	};
+
+	vcc_3v3_rtc_s5: regulator-vcc-3v3-rtc-s5 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_3v3_rtc_s5";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_5v0_sys>;
+	};
+
+	vbus_5v0_typec: regulator-vbus-5v0-typec {
+		compatible = "regulator-fixed";
+		regulator-name = "vbus5v0_typec";
+		enable-active-high;
+		gpio = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_otg0_pwr_en>;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0_device>;
+	};
+
+	vcc_5v0_host: regulator-vcc-5v0-host {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_host";
+		enable-active-high;
+		gpio = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_host_pwr_en>;
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0_device>;
+	};
+
+	vcc_5v0_sys: regulator-vcc-5v0-sys {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_sys";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0_dcin>;
+	};
+
+	vcc_5v0_device: regulator-vcc-5v0-device {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_device";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&vcc_5v0_dcin>;
+	};
+
+	vcc_5v0_hdmi: regulator-vcc-5v0-hdmi {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_5v0_hdmi";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		regulator-boot-on;
+		enable-active-high;
+		gpio = <&gpio4 RK_PC6 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_con_en>;
+		vin-supply = <&vcc_5v0_sys>;
+	};
+};
+
+&combphy0_ps {
+	status = "okay";
+};
+
+&combphy1_psu {
+	status = "okay";
+};
+
+&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>;
+};
+
+&gmac0 {
+	clock_in_out = "output";
+	phy-handle = <&rgmii_phy0>;
+	phy-mode = "rgmii-rxid";
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth0m0_miim
+		     &eth0m0_tx_bus2
+		     &eth0m0_rx_bus2
+		     &eth0m0_rgmii_clk
+		     &eth0m0_rgmii_bus
+		     &ethm0_clk0_25m_out>;
+	snps,reset-gpio = <&gpio2 RK_PB3 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 20000 100000>;
+	tx_delay = <0x20>;
+	status = "okay";
+};
+
+&gmac1 {
+	clock_in_out = "output";
+	phy-handle = <&rgmii_phy1>;
+	phy-mode = "rgmii-rxid";
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth1m0_miim
+		     &eth1m0_tx_bus2
+		     &eth1m0_rx_bus2
+		     &eth1m0_rgmii_clk
+		     &eth1m0_rgmii_bus
+		     &ethm0_clk1_25m_out>;
+	snps,reset-gpio = <&gpio2 RK_PB4 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 20000 100000>;
+	tx_delay = <0x20>;
+	status = "okay";
+};
+
+&gpu {
+	mali-supply = <&vdd_gpu_s0>;
+	status = "okay";
+};
+
+&hdmi {
+	status = "okay";
+};
+
+&hdmi_in {
+	hdmi_in_vp0: endpoint {
+		remote-endpoint = <&vp0_out_hdmi>;
+	};
+};
+
+&hdmi_out {
+	hdmi_out_con: endpoint {
+		remote-endpoint = <&hdmi_con_in>;
+	};
+};
+
+&hdptxphy {
+	phy-supply = <&vdda0v75_hdmi_s0>;
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+
+	pmic@23 {
+		compatible = "rockchip,rk806";
+		reg = <0x23>;
+		#gpio-cells = <2>;
+		gpio-controller;
+		interrupt-parent = <&gpio0>;
+		interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default", "pmic-power-off";
+		pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
+			    <&rk806_dvs2_null>, <&rk806_dvs3_null>;
+		pinctrl-1 = <&rk806_dvs1_pwrdn>;
+		system-power-controller;
+
+		vcc1-supply = <&vcc_5v0_sys>;
+		vcc2-supply = <&vcc_5v0_sys>;
+		vcc3-supply = <&vcc_5v0_sys>;
+		vcc4-supply = <&vcc_5v0_sys>;
+		vcc5-supply = <&vcc_5v0_sys>;
+		vcc6-supply = <&vcc_5v0_sys>;
+		vcc7-supply = <&vcc_5v0_sys>;
+		vcc8-supply = <&vcc_5v0_sys>;
+		vcc9-supply = <&vcc_5v0_sys>;
+		vcc10-supply = <&vcc_5v0_sys>;
+		vcc11-supply = <&vcc_2v0_pldo_s3>;
+		vcc12-supply = <&vcc_5v0_sys>;
+		vcc13-supply = <&vcc_1v1_nldo_s3>;
+		vcc14-supply = <&vcc_1v1_nldo_s3>;
+		vcca-supply = <&vcc_5v0_sys>;
+
+		pwrkey {
+			status = "okay";
+		};
+
+		rk806_dvs1_null: dvs1-null-pins {
+			pins = "gpio_pwrctrl2";
+			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";
+	hym8563: rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+		clock-output-names = "hym8563";
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PA5 IRQ_TYPE_LEVEL_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hym8563_int>;
+		wakeup-source;
+	};
+};
+
+&mdio0 {
+	rgmii_phy0: phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x0>;
+		clocks = <&cru REFCLKO25M_GMAC0_OUT>;
+	};
+};
+
+&mdio1 {
+	rgmii_phy1: phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0x0>;
+		clocks = <&cru REFCLKO25M_GMAC1_OUT>;
+	};
+};
+
+&pcie0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_reset>;
+	reset-gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&vcc_3v3_pcie>;
+	status = "okay";
+};
+
+&pinctrl {
+	hdmi {
+		hdmi_con_en: hdmi-con-en {
+			rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	hym8563 {
+		hym8563_int: hym8563-int {
+			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	leds {
+		led_green_pin: led-green-pin {
+			rockchip,pins = <1 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
+	pcie {
+		pcie_pwr_en: pcie-pwr-en {
+			rockchip,pins = <4 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		pcie_reset: pcie-reset {
+			rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
+	usb {
+		usb_host_pwr_en: usb-host-pwr-en {
+			rockchip,pins = <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usb_otg0_pwr_en: usb-otg0-pwr-en {
+			rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		usbc0_int: usbc0-int {
+			rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+};
+
+&saradc {
+	status = "okay";
+	vref-supply = <&vcca_1v8_s0>;
+};
+
+&sdhci {
+	bus-width = <8>;
+	full-pwr-cycle-in-suspend;
+	max-frequency = <200000000>;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
+	no-sdio;
+	no-sd;
+	non-removable;
+	status = "okay";
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	max-frequency = <200000000>;
+	no-sdio;
+	no-mmc;
+	sd-uhs-sdr104;
+	vmmc-supply = <&vcc_3v3_s3>;
+	vqmmc-supply = <&vccio_sd_s0>;
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4m1_xfer &uart4m1_ctsn>;
+	status = "okay";
+};
+
+&u2phy1 {
+	status = "okay";
+};
+
+&u2phy1_otg {
+	phy-supply = <&vcc_5v0_host>;
+	status = "okay";
+};
+
+&usb_drd1_dwc3 {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&vop {
+	vop-supply = <&vdd_logic_s0>;
+	status = "okay";
+};
+
+&vop_mmu {
+	status = "okay";
+};
+
+&vp0 {
+	vp0_out_hdmi: endpoint@ROCKCHIP_VOP2_EP_HDMI0 {
+		reg = <ROCKCHIP_VOP2_EP_HDMI0>;
+		remote-endpoint = <&hdmi_in_vp0>;
+	};
+};
-- 
2.39.5

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[Jonas Karlman]

Hi John,

On 2025-05-04 12:24, John Clark wrote:
> Add device tree for the Luckfox Omni3576 Carrier Board with Core3576
> Module, powered by the Rockchip RK3576 SoC with four Cortex-A72 cores,
> four Cortex-A53 cores, and a Mali-G52 MC3 GPU. This initial
> implementation enables essential functionality for booting Linux and
> basic connectivity.
> 
> Supported and tested features:
>  - UART for serial console
>  - SD card for storage
>  - PCIe with NVMe SSD (detected, mounted, and fully functional)
>  - Gigabit Ethernet 0 with RGMII PHY
>  - USB 2.0 host ports
>  - RK806 PMIC for power management
>  - RTC with timekeeping and wake-up
>  - GPIO-controlled LED with heartbeat trigger
>  - eMMC (enabled, not populated on tested board)
> 
> The device tree provides a foundation for further peripheral support, such
> as WiFi, MIPI-DSI, HDMI, and Ethernet 1, in future updates.
> 
> Tested on Linux 6.15-rc4
> 
> Signed-off-by: John Clark <inindev@gmail.com>
> ---
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../dts/rockchip/rk3576-luckfox-omni3576.dts  | 779 ++++++++++++++++++
>  2 files changed, 780 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
> 
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index 7948522cb225..22d74367b7e6 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -136,6 +136,7 @@ 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-evb1-v10.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-luckfox-omni3576.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-roc-pc.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-rock-4d.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3582-radxa-e52c.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts b/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
> new file mode 100644
> index 000000000000..73351ba7830c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
> @@ -0,0 +1,779 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2024 Rockchip Electronics Co., Ltd.
> + *
> + */
> +
> +/dts-v1/;
> +
> +#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 "rk3576.dtsi"
> +
> +/ {
> +	model = "Luckfox Omni3576";
> +	compatible = "luckfox,omni3576", "rockchip,rk3576";
> +
> +	aliases {
> +		ethernet0 = &gmac0;
> +		ethernet1 = &gmac1;
> +		mmc0 = &sdhci;
> +		mmc1 = &sdmmc;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:1500000n8";
> +	};
> +
> +	hdmi-con {
> +		compatible = "hdmi-connector";
> +		hdmi-pwr-supply = <&vcc_5v0_hdmi>;
> +		type = "a";
> +
> +		port {
> +			hdmi_con_in: endpoint {
> +				remote-endpoint = <&hdmi_out_con>;
> +			};
> +		};
> +	};
> +
> +	leds: leds {
> +		compatible = "gpio-leds";
> +
> +		green_led: green-led {
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_HEARTBEAT;
> +			gpios = <&gpio1 RK_PD5 GPIO_ACTIVE_HIGH>;

This should probably also have a pinctrl to configure the gpio pin
referenced here.

> +			linux,default-trigger = "heartbeat";
> +		};
> +	};
> +
> +	vcc_5v0_dcin: regulator-vcc-5v0-dcin {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_5v0_dcin";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +	};
> +
> +	vcc_1v1_nldo_s3: regulator-vcc-1v1-nldo-s3 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_1v1_nldo_s3";
> +		regulator-boot-on;
> +		regulator-always-on;

Please use consistent property order for all regulator nodes, e.g.
vcc_5v0_dcin used always-on before boot-on, and here you use boot-on
before always-on.

> +		regulator-min-microvolt = <1100000>;
> +		regulator-max-microvolt = <1100000>;
> +		vin-supply = <&vcc_5v0_sys>;
> +	};
> +
> +	vcc_2v0_pldo_s3: regulator-vcc-2v0-pldo-s3 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_2v0_pldo_s3";
> +		regulator-boot-on;
> +		regulator-always-on;

Same here.

> +		regulator-min-microvolt = <2000000>;
> +		regulator-max-microvolt = <2000000>;
> +		vin-supply = <&vcc_5v0_sys>;
> +	};
> +
> +	vcc_3v3_pcie: regulator-vcc-3v3-pcie {
> +		compatible = "regulator-fixed";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pcie_pwr_en>;
> +		regulator-name = "vcc_3v3_pcie";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		enable-active-high;
> +		gpio = <&gpio4 RK_PA0 GPIO_ACTIVE_HIGH>;

Please use the gpios property instead of the somewhat depracated gpio
property. Also please consider consistent property order.

> +		startup-delay-us = <1000>;
> +		vin-supply = <&vcc_5v0_sys>;
> +	};
> +
> +	vcc_3v3_rtc_s5: regulator-vcc-3v3-rtc-s5 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_3v3_rtc_s5";
> +		regulator-boot-on;
> +		regulator-always-on;

Same here.

> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&vcc_5v0_sys>;
> +	};
> +
> +	vbus_5v0_typec: regulator-vbus-5v0-typec {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vbus5v0_typec";
> +		enable-active-high;
> +		gpio = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>;

Same here.

> +		pinctrl-names = "default";
> +		pinctrl-0 = <&usb_otg0_pwr_en>;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&vcc_5v0_device>;
> +	};
> +
> +	vcc_5v0_host: regulator-vcc-5v0-host {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_5v0_host";
> +		enable-active-high;
> +		gpio = <&gpio0 RK_PC7 GPIO_ACTIVE_HIGH>;

Same here.
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&usb_host_pwr_en>;
> +		regulator-boot-on;
> +		regulator-always-on;

Same here.

> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&vcc_5v0_device>;
> +	};
> +
> +	vcc_5v0_sys: regulator-vcc-5v0-sys {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_5v0_sys";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&vcc_5v0_dcin>;
> +	};
> +
> +	vcc_5v0_device: regulator-vcc-5v0-device {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_5v0_device";
> +		regulator-always-on;
> +		regulator-boot-on;
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		vin-supply = <&vcc_5v0_dcin>;
> +	};
> +
> +	vcc_5v0_hdmi: regulator-vcc-5v0-hdmi {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_5v0_hdmi";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		regulator-always-on;
> +		regulator-boot-on;

And here always/boot-on are listed after min/max props, please use
consistent property order.

> +		enable-active-high;
> +		gpio = <&gpio4 RK_PC6 GPIO_ACTIVE_HIGH>;

Same as above regarding gpio vs gpios.

> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hdmi_con_en>;
> +		vin-supply = <&vcc_5v0_sys>;
> +	};
> +};
> +
> +&combphy0_ps {
> +	status = "okay";
> +};
> +
> +&combphy1_psu {
> +	status = "okay";
> +};
> +
> +&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>;
> +};
> +
> +&gmac0 {
> +	clock_in_out = "output";
> +	phy-handle = <&rgmii_phy0>;
> +	phy-mode = "rgmii-rxid";

See Andrew's remark on v1 of this patch.

> +	pinctrl-names = "default";
> +	pinctrl-0 = <&eth0m0_miim
> +		     &eth0m0_tx_bus2
> +		     &eth0m0_rx_bus2
> +		     &eth0m0_rgmii_clk
> +		     &eth0m0_rgmii_bus
> +		     &ethm0_clk0_25m_out>;
> +	snps,reset-gpio = <&gpio2 RK_PB3 GPIO_ACTIVE_LOW>;
> +	snps,reset-active-low;
> +	snps,reset-delays-us = <0 20000 100000>;

The snps,reset- props are depracated, please move to reset props in the
Ethernet PHY node.

> +	tx_delay = <0x20>;
> +	status = "okay";
> +};
> +
> +&gmac1 {
> +	clock_in_out = "output";
> +	phy-handle = <&rgmii_phy1>;
> +	phy-mode = "rgmii-rxid";

Same here.

> +	pinctrl-names = "default";
> +	pinctrl-0 = <&eth1m0_miim
> +		     &eth1m0_tx_bus2
> +		     &eth1m0_rx_bus2
> +		     &eth1m0_rgmii_clk
> +		     &eth1m0_rgmii_bus
> +		     &ethm0_clk1_25m_out>;
> +	snps,reset-gpio = <&gpio2 RK_PB4 GPIO_ACTIVE_LOW>;
> +	snps,reset-active-low;
> +	snps,reset-delays-us = <0 20000 100000>;

Same here.

> +	tx_delay = <0x20>;
> +	status = "okay";
> +};
> +
> +&gpu {
> +	mali-supply = <&vdd_gpu_s0>;
> +	status = "okay";
> +};
> +
> +&hdmi {
> +	status = "okay";
> +};
> +
> +&hdmi_in {
> +	hdmi_in_vp0: endpoint {
> +		remote-endpoint = <&vp0_out_hdmi>;
> +	};
> +};
> +
> +&hdmi_out {
> +	hdmi_out_con: endpoint {
> +		remote-endpoint = <&hdmi_con_in>;
> +	};
> +};
> +
> +&hdptxphy {
> +	phy-supply = <&vdda0v75_hdmi_s0>;
> +	status = "okay";
> +};
> +
> +&i2c1 {
> +	status = "okay";
> +
> +	pmic@23 {
> +		compatible = "rockchip,rk806";
> +		reg = <0x23>;
> +		#gpio-cells = <2>;
> +		gpio-controller;
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
> +		pinctrl-names = "default", "pmic-power-off";

To my knowledge the pmic-power-off state is vendor kernel specific and
should probably not be added without being described in the dt-binding.

> +		pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
> +			    <&rk806_dvs2_null>, <&rk806_dvs3_null>;
> +		pinctrl-1 = <&rk806_dvs1_pwrdn>;
> +		system-power-controller;
> +
> +		vcc1-supply = <&vcc_5v0_sys>;
> +		vcc2-supply = <&vcc_5v0_sys>;
> +		vcc3-supply = <&vcc_5v0_sys>;
> +		vcc4-supply = <&vcc_5v0_sys>;
> +		vcc5-supply = <&vcc_5v0_sys>;
> +		vcc6-supply = <&vcc_5v0_sys>;
> +		vcc7-supply = <&vcc_5v0_sys>;
> +		vcc8-supply = <&vcc_5v0_sys>;
> +		vcc9-supply = <&vcc_5v0_sys>;
> +		vcc10-supply = <&vcc_5v0_sys>;
> +		vcc11-supply = <&vcc_2v0_pldo_s3>;
> +		vcc12-supply = <&vcc_5v0_sys>;
> +		vcc13-supply = <&vcc_1v1_nldo_s3>;
> +		vcc14-supply = <&vcc_1v1_nldo_s3>;
> +		vcca-supply = <&vcc_5v0_sys>;
> +
> +		pwrkey {
> +			status = "okay";
> +		};

This node is vendor specific and is not described in the dt-bindings.

> +
> +		rk806_dvs1_null: dvs1-null-pins {
> +			pins = "gpio_pwrctrl2";
> +			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";

please add a blank line, DT coding style recommend a blank line between
properties and child nodes.

> +	hym8563: rtc@51 {
> +		compatible = "haoyu,hym8563";
> +		reg = <0x51>;
> +		#clock-cells = <0>;
> +		clock-output-names = "hym8563";
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <RK_PA5 IRQ_TYPE_LEVEL_LOW>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&hym8563_int>;
> +		wakeup-source;
> +	};
> +};
> +
> +&mdio0 {
> +	rgmii_phy0: phy@0 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <0x0>;
> +		clocks = <&cru REFCLKO25M_GMAC0_OUT>;

Please add Ethernet PHY reset props here.

> +	};
> +};
> +
> +&mdio1 {
> +	rgmii_phy1: phy@0 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <0x0>;
> +		clocks = <&cru REFCLKO25M_GMAC1_OUT>;

And here.

> +	};
> +};
> +
> +&pcie0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pcie_reset>;
> +	reset-gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_HIGH>;
> +	vpcie3v3-supply = <&vcc_3v3_pcie>;
> +	status = "okay";
> +};
> +
> +&pinctrl {
> +	hdmi {
> +		hdmi_con_en: hdmi-con-en {
> +			rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	hym8563 {
> +		hym8563_int: hym8563-int {
> +			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +
> +	leds {
> +		led_green_pin: led-green-pin {
> +			rockchip,pins = <1 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
> +	pcie {
> +		pcie_pwr_en: pcie-pwr-en {
> +			rockchip,pins = <4 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +
> +		pcie_reset: pcie-reset {
> +			rockchip,pins = <2 RK_PB1 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +
> +	usb {
> +		usb_host_pwr_en: usb-host-pwr-en {
> +			rockchip,pins = <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		usb_otg0_pwr_en: usb-otg0-pwr-en {
> +			rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +
> +		usbc0_int: usbc0-int {
> +			rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>;
> +		};
> +	};
> +};
> +
> +&saradc {
> +	status = "okay";
> +	vref-supply = <&vcca_1v8_s0>;
> +};
> +
> +&sdhci {
> +	bus-width = <8>;
> +	full-pwr-cycle-in-suspend;
> +	max-frequency = <200000000>;
> +	mmc-hs400-1_8v;
> +	mmc-hs400-enhanced-strobe;
> +	no-sdio;
> +	no-sd;
> +	non-removable;

This should probably have vmmc/vqmmc-supply?

> +	status = "okay";
> +};
> +
> +&sdmmc {
> +	bus-width = <4>;
> +	cap-mmc-highspeed;

Enable of mmc speed when no-mmc look a little bit strange.

> +	cap-sd-highspeed;
> +	disable-wp;
> +	max-frequency = <200000000>;
> +	no-sdio;
> +	no-mmc;

Are we sure about no-mmc? The datasheet for rk3576 list:

SD/MMC interface
- Compliance to SD v3.0, MMC v4.51
- Supports 4-bit data bus

I would suggest you test with no-mmc removed (and cap-mmc-highspeed not
removed) together with a sd-card to emmc adapter, the emmc will probably
be detected and working.

Regards,
Jonas

> +	sd-uhs-sdr104;
> +	vmmc-supply = <&vcc_3v3_s3>;
> +	vqmmc-supply = <&vccio_sd_s0>;
> +	status = "okay";
> +};
> +
> +&uart0 {
> +	status = "okay";
> +};
> +
> +&uart4 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&uart4m1_xfer &uart4m1_ctsn>;
> +	status = "okay";
> +};
> +
> +&u2phy1 {
> +	status = "okay";
> +};
> +
> +&u2phy1_otg {
> +	phy-supply = <&vcc_5v0_host>;
> +	status = "okay";
> +};
> +
> +&usb_drd1_dwc3 {
> +	dr_mode = "host";
> +	status = "okay";
> +};
> +
> +&vop {
> +	vop-supply = <&vdd_logic_s0>;
> +	status = "okay";
> +};
> +
> +&vop_mmu {
> +	status = "okay";
> +};
> +
> +&vp0 {
> +	vp0_out_hdmi: endpoint@ROCKCHIP_VOP2_EP_HDMI0 {
> +		reg = <ROCKCHIP_VOP2_EP_HDMI0>;
> +		remote-endpoint = <&hdmi_in_vp0>;
> +	};
> +};

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[Andrew Lunn]

> > +&gmac0 {
> > +	clock_in_out = "output";
> > +	phy-handle = <&rgmii_phy0>;
> > +	phy-mode = "rgmii-rxid";
> 
> See Andrew's remark on v1 of this patch.

Hi John

If you have questions, please ask. It is not a good idea to silently
ignore reviewers comments. Either do something about it, ask
questions, or politely argue why the reviewer is wrong, because
sometimes we are.

> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&eth0m0_miim
> > +		     &eth0m0_tx_bus2
> > +		     &eth0m0_rx_bus2
> > +		     &eth0m0_rgmii_clk
> > +		     &eth0m0_rgmii_bus
> > +		     &ethm0_clk0_25m_out>;
> > +	snps,reset-gpio = <&gpio2 RK_PB3 GPIO_ACTIVE_LOW>;
> > +	snps,reset-active-low;
> > +	snps,reset-delays-us = <0 20000 100000>;
> 
> The snps,reset- props are depracated, please move to reset props in the
> Ethernet PHY node.

FYI: snps,dwmac.yaml says:

snps,reset-gpio:
    deprecated: true
    maxItems: 1
    description:
      PHY Reset GPIO

Anything with 'deprecated: true' you should not be using in new DT
blobs. Don't blindly copy vendor DT, you need to verify it is up to
Mainline quality, and if not, bring it up to Mainline quality.

> > +	tx_delay = <0x20>;

This property probably plays a role in the issue with phy-mode.

arch/arm64/boot/dts/rockchip$ grep "rgmii-id" *
rk3328-orangepi-r1-plus-lts.dts:	phy-mode = "rgmii-id";
rk3566-bigtreetech-cb2.dtsi:	phy-mode = "rgmii-id";
rk3566-nanopi-r3s.dts:	phy-mode = "rgmii-id";
rk3566-odroid-m1s.dts:	phy-mode = "rgmii-id";
rk3566-orangepi-3b.dtsi:	phy-mode = "rgmii-id";
rk3566-radxa-zero-3e.dts:	phy-mode = "rgmii-id";
rk3566-rock-3c.dts:	phy-mode = "rgmii-id";
rk3568-evb1-v10.dts:	phy-mode = "rgmii-id";
rk3568-evb1-v10.dts:	phy-mode = "rgmii-id";
...
etc.

You might be able to learn something from these.

	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[John Clark]

On 5/4/25 10:12 AM, Andrew Lunn wrote:
>>> +&gmac0 {
>>> +	clock_in_out = "output";
>>> +	phy-handle = <&rgmii_phy0>;
>>> +	phy-mode = "rgmii-rxid";
>>
>> See Andrew's remark on v1 of this patch.
> 
> Hi John
> 
> If you have questions, please ask. It is not a good idea to silently
> ignore reviewers comments. Either do something about it, ask
> questions, or politely argue why the reviewer is wrong, because
> sometimes we are.
> 
Hi Andrew,
Thanks for your feedback and the link to the RGMII delays discussion. I 
assumed you suggested switching to phy-mode = "rgmii-id" from 
rgmii-rxid. The vendor’s downstream kernel uses rgmii-rxid with tx_delay 
= <0x20>, as shown in my post. I tried rgmii-id and removed tx_delay, 
but the interface failed to get a DHCP address. Reverting to rgmii-rxid 
with the delay restored functionality. Any advice on correctly 
configuring rgmii-id or adjusting delays for this board?
Best,
John Clark

>>> +	pinctrl-names = "default";
>>> +	pinctrl-0 = <&eth0m0_miim
>>> +		     &eth0m0_tx_bus2
>>> +		     &eth0m0_rx_bus2
>>> +		     &eth0m0_rgmii_clk
>>> +		     &eth0m0_rgmii_bus
>>> +		     &ethm0_clk0_25m_out>;
>>> +	snps,reset-gpio = <&gpio2 RK_PB3 GPIO_ACTIVE_LOW>;
>>> +	snps,reset-active-low;
>>> +	snps,reset-delays-us = <0 20000 100000>;
>>
>> The snps,reset- props are depracated, please move to reset props in the
>> Ethernet PHY node.
> 
> FYI: snps,dwmac.yaml says:
> 
> snps,reset-gpio:
>      deprecated: true
>      maxItems: 1
>      description:
>        PHY Reset GPIO
> 
> Anything with 'deprecated: true' you should not be using in new DT
> blobs. Don't blindly copy vendor DT, you need to verify it is up to
> Mainline quality, and if not, bring it up to Mainline quality.
> 
>>> +	tx_delay = <0x20>;
> 
> This property probably plays a role in the issue with phy-mode.
> 
> arch/arm64/boot/dts/rockchip$ grep "rgmii-id" *
> rk3328-orangepi-r1-plus-lts.dts:	phy-mode = "rgmii-id";
> rk3566-bigtreetech-cb2.dtsi:	phy-mode = "rgmii-id";
> rk3566-nanopi-r3s.dts:	phy-mode = "rgmii-id";
> rk3566-odroid-m1s.dts:	phy-mode = "rgmii-id";
> rk3566-orangepi-3b.dtsi:	phy-mode = "rgmii-id";
> rk3566-radxa-zero-3e.dts:	phy-mode = "rgmii-id";
> rk3566-rock-3c.dts:	phy-mode = "rgmii-id";
> rk3568-evb1-v10.dts:	phy-mode = "rgmii-id";
> rk3568-evb1-v10.dts:	phy-mode = "rgmii-id";
> ...
> etc.
> 
> You might be able to learn something from these.
> 
> 	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[Andrew Lunn]

On Sun, May 04, 2025 at 05:02:33PM -0400, John Clark wrote:
> On 5/4/25 10:12 AM, Andrew Lunn wrote:
> > > > +&gmac0 {
> > > > +	clock_in_out = "output";
> > > > +	phy-handle = <&rgmii_phy0>;
> > > > +	phy-mode = "rgmii-rxid";
> > > 
> > > See Andrew's remark on v1 of this patch.
> > 
> > Hi John
> > 
> > If you have questions, please ask. It is not a good idea to silently
> > ignore reviewers comments. Either do something about it, ask
> > questions, or politely argue why the reviewer is wrong, because
> > sometimes we are.
> > 
> Hi Andrew,
> Thanks for your feedback and the link to the RGMII delays discussion. I
> assumed you suggested switching to phy-mode = "rgmii-id" from rgmii-rxid.
> The vendor’s downstream kernel uses rgmii-rxid with tx_delay = <0x20>, as
> shown in my post. I tried rgmii-id and removed tx_delay, but the interface
> failed to get a DHCP address. Reverting to rgmii-rxid with the delay
> restored functionality. Any advice on correctly configuring rgmii-id or
> adjusting delays for this board?

What PHY is it? Are you using the correct PHY driver for it, or
genphy?

rk3576-rock-4d.dts and rk3576-armsom-sige5.dts show that it is
possible to use this SoC with the correct 'rgmii-id', 

	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[John Clark]

On 5/4/25 7:01 PM, Andrew Lunn wrote:
> On Sun, May 04, 2025 at 05:02:33PM -0400, John Clark wrote:
>> On 5/4/25 10:12 AM, Andrew Lunn wrote:
>>>>> +&gmac0 {
>>>>> +	clock_in_out = "output";
>>>>> +	phy-handle = <&rgmii_phy0>;
>>>>> +	phy-mode = "rgmii-rxid";
>>>>
>>>> See Andrew's remark on v1 of this patch.
>>>
>>> Hi John
>>>
>>> If you have questions, please ask. It is not a good idea to silently
>>> ignore reviewers comments. Either do something about it, ask
>>> questions, or politely argue why the reviewer is wrong, because
>>> sometimes we are.
>>>
>> Hi Andrew,
>> Thanks for your feedback and the link to the RGMII delays discussion. I
>> assumed you suggested switching to phy-mode = "rgmii-id" from rgmii-rxid.
>> The vendor’s downstream kernel uses rgmii-rxid with tx_delay = <0x20>, as
>> shown in my post. I tried rgmii-id and removed tx_delay, but the interface
>> failed to get a DHCP address. Reverting to rgmii-rxid with the delay
>> restored functionality. Any advice on correctly configuring rgmii-id or
>> adjusting delays for this board?
> 
> What PHY is it? Are you using the correct PHY driver for it, or
> genphy?
 >

This fails:

&gmac0 {
         clock_in_out = "output";
         phy-handle = <&rgmii_phy0>;
         phy-mode = "rgmii-id";
         pinctrl-names = "default";
         pinctrl-0 = <&eth0m0_miim
                      &eth0m0_tx_bus2
                      &eth0m0_rx_bus2
                      &eth0m0_rgmii_clk
                      &eth0m0_rgmii_bus
                      &ethm0_clk0_25m_out>;
         status = "okay";
};

&mdio0 {
         rgmii_phy0: ethernet-phy@0 {
                 compatible = "ethernet-phy-ieee802.3-c22";
                 reg = <0x0>;
                 clocks = <&cru REFCLKO25M_GMAC0_OUT>;
                 pinctrl-names = "default";
                 pinctrl-0 = <&gmac0_rst>;
                 reset-assert-us = <20000>;
                 reset-deassert-us = <100000>;
                 reset-gpios = <&gpio2 RK_PB3 GPIO_ACTIVE_LOW>;
         };
};

&pinctrl {
         gmac {
                 gmac0_rst: gmac0-rst {
                         rockchip,pins = <2 RK_PB3 RK_FUNC_GPIO 
&pcfg_pull_none>;
                 };
         };
};


This works:

&gmac0 {
         clock_in_out = "output";
         phy-handle = <&rgmii_phy0>;
         phy-mode = "rgmii-rxid";
         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 = <0x20>;
         status = "okay";
};

&mdio0 {
         rgmii_phy0: ethernet-phy@0 {
                 compatible = "ethernet-phy-ieee802.3-c22";
                 reg = <0x0>;
                 clocks = <&cru REFCLKO25M_GMAC0_OUT>;
                 pinctrl-names = "default";
                 pinctrl-0 = <&gmac0_rst>;
                 reset-assert-us = <20000>;
                 reset-deassert-us = <100000>;
                 reset-gpios = <&gpio2 RK_PB3 GPIO_ACTIVE_LOW>;
         };
};

&pinctrl {
         gmac {
                 gmac0_rst: gmac0-rst {
                         rockchip,pins = <2 RK_PB3 RK_FUNC_GPIO 
&pcfg_pull_none>;
                 };
         };
};

> 
> rk3576-rock-4d.dts and rk3576-armsom-sige5.dts show that it is
> possible to use this SoC with the correct 'rgmii-id',
> 
> 	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[John Clark]

On 5/4/25 7:01 PM, Andrew Lunn wrote:
> On Sun, May 04, 2025 at 05:02:33PM -0400, John Clark wrote:
>> On 5/4/25 10:12 AM, Andrew Lunn wrote:
>>>>> +&gmac0 {
>>>>> +	clock_in_out = "output";
>>>>> +	phy-handle = <&rgmii_phy0>;
>>>>> +	phy-mode = "rgmii-rxid";
>>>>
>>>> See Andrew's remark on v1 of this patch.
>>>
>>> Hi John
>>>
>>> If you have questions, please ask. It is not a good idea to silently
>>> ignore reviewers comments. Either do something about it, ask
>>> questions, or politely argue why the reviewer is wrong, because
>>> sometimes we are.
>>>
>> Hi Andrew,
>> Thanks for your feedback and the link to the RGMII delays discussion. I
>> assumed you suggested switching to phy-mode = "rgmii-id" from rgmii-rxid.
>> The vendor’s downstream kernel uses rgmii-rxid with tx_delay = <0x20>, as
>> shown in my post. I tried rgmii-id and removed tx_delay, but the interface
>> failed to get a DHCP address. Reverting to rgmii-rxid with the delay
>> restored functionality. Any advice on correctly configuring rgmii-id or
>> adjusting delays for this board?
> 
> What PHY is it? Are you using the correct PHY driver for it, or
> genphy?
> 
MAE0621A-Q3C
http://www.maxio-tech.com/product/12928/12929/12930/12931.html

> rk3576-rock-4d.dts and rk3576-armsom-sige5.dts show that it is
> possible to use this SoC with the correct 'rgmii-id',
> 
> 	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[Andrew Lunn]

> > What PHY is it? Are you using the correct PHY driver for it, or
> > genphy?
> > 
> MAE0621A-Q3C
> http://www.maxio-tech.com/product/12928/12929/12930/12931.html

Mainline does not have a PHY driver for this. So nothing is
controlling the delays in the PHY. So what you have above works by
luck, and is likely to break once there is a PHY driver. So i suggest
you drop the Ethernet nodes for the moment.

There does appear to be a PHY driver here:

https://github.com/CoreELEC/linux-amlogic/blob/5.15.153_202501/drivers/net/phy/maxio.c

but it has a number of things wrong with it. You might want to search
around and see if there are any cleaner versions around, or if anybody
is working on upstreaming a driver for this PHY.

	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[John Clark]

On 5/4/25 8:45 PM, Andrew Lunn wrote:
>>> What PHY is it? Are you using the correct PHY driver for it, or
>>> genphy?
>>>
>> MAE0621A-Q3C
>> http://www.maxio-tech.com/product/12928/12929/12930/12931.html
> 
> Mainline does not have a PHY driver for this. So nothing is
> controlling the delays in the PHY. So what you have above works by
> luck, and is likely to break once there is a PHY driver. So i suggest
> you drop the Ethernet nodes for the moment.
> 
The chip claims to be a pin-for-pin clone of the rtl8211f. Empirical 
testing has demonstrated it to be extremely stable. Without networking 
IO the board is very difficult to develop against. I can disable 
networking if that is the consensus.

> There does appear to be a PHY driver here:
> 
> https://github.com/CoreELEC/linux-amlogic/blob/5.15.153_202501/drivers/net/phy/maxio.c
> 
> but it has a number of things wrong with it. You might want to search
> around and see if there are any cleaner versions around, or if anybody
> is working on upstreaming a driver for this PHY.
> 
> 	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[Diederik de Haas]

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Hi,

On Mon May 5, 2025 at 2:52 AM CEST, John Clark wrote:
> On 5/4/25 8:45 PM, Andrew Lunn wrote:
>>>> What PHY is it? Are you using the correct PHY driver for it, or
>>>> genphy?
>>>>
>>> MAE0621A-Q3C
>>> http://www.maxio-tech.com/product/12928/12929/12930/12931.html
>> 
>> Mainline does not have a PHY driver for this. So nothing is
>> controlling the delays in the PHY. So what you have above works by
>> luck, and is likely to break once there is a PHY driver. So i suggest
>> you drop the Ethernet nodes for the moment.
>> 
> The chip claims to be a pin-for-pin clone of the rtl8211f. Empirical 
> testing has demonstrated it to be extremely stable. Without networking 
> IO the board is very difficult to develop against. I can disable 
> networking if that is the consensus.
>
>> There does appear to be a PHY driver here:
>> 
>> https://github.com/CoreELEC/linux-amlogic/blob/5.15.153_202501/drivers/net/phy/maxio.c
>> 
>> but it has a number of things wrong with it. You might want to search
>> around and see if there are any cleaner versions around, or if anybody
>> is working on upstreaming a driver for this PHY.

It may be nothing, but to me this is getting too much of a coincidence.

I have a NanoPi R5S and I want(ed) to look at its gmac node as well,
because it (also) has some deprecated properties ... and
``phy-mode = "rgmii"`` which was done deliberately in commit
31425b1fadb2 ("arm64: dts: rockchip: fix gmac support for NanoPi R5S")
and the change was away from "rgmii-id" ... and it has a RTL8211F-CG.
Unfortunately the commit message doesn't say *why* it changed.

I also have a Quartz64-B, which also has a RTL8211F-CG and it has
``phy-mode = "rgmii"``, changed from "rgmii-id" in commit
16bc4d196b2a ("arm64: dts: rockchip: Fix ethernet on production Quartz64-B")

And maybe related, but a bit different is the Quartz64-A which I also
have, which also has ``phy-mode = "rgmii"`` which I'm reasonably sure
was done deliberately (by Peter Geis, who also made the previously
mentioned commit for Q64-B). Q64-A's PHY is YT-8511C 'though'.

And then there's an 'issue' with Q64-A and Q64-B when U-Boot enabled the
ethernet driver causing massive packet loss: 
https://lore.kernel.org/u-boot/2086393.9F9pDXStbY@bagend/
"configs: rockchip: Enable ethernet driver on RK356x boards"
(packet loss on Q64-B was significantly higher then on Q64-A)

As I said, it could be a coincidence and if it is, just tell me and I'll
stay out of this thread going further.
In any case, thanks for "Add informative text about RGMII delays", that
is quite useful :-)

Cheers,
  Diederik

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Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[Andrew Lunn]

> I have a NanoPi R5S and I want(ed) to look at its gmac node as well,
> because it (also) has some deprecated properties ... and
> ``phy-mode = "rgmii"`` which was done deliberately in commit
> 31425b1fadb2 ("arm64: dts: rockchip: fix gmac support for NanoPi R5S")
> and the change was away from "rgmii-id" ... and it has a RTL8211F-CG.
> Unfortunately the commit message doesn't say *why* it changed.

Often the developer does not actually understand RGMII delays. They
simply try things at random until it works, and then call it done.

Over the last year or more i've been much more strict at this, looking
at more patches for .dts files and pointing out errors. Hopefully with
time the errors will become less frequent as developers start to
learn, and there are more good examples top copy/paste. But it also
require some vendors to fix their broken MAC drivers.

	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[John Clark]

On 5/4/25 8:45 PM, Andrew Lunn wrote:
>>> What PHY is it? Are you using the correct PHY driver for it, or
>>> genphy?
>>>
>> MAE0621A-Q3C
>> http://www.maxio-tech.com/product/12928/12929/12930/12931.html
> 
> Mainline does not have a PHY driver for this. So nothing is
> controlling the delays in the PHY. So what you have above works by
> luck, and is likely to break once there is a PHY driver. So i suggest
> you drop the Ethernet nodes for the moment.
> 
> There does appear to be a PHY driver here:
> 
> https://github.com/CoreELEC/linux-amlogic/blob/5.15.153_202501/drivers/net/phy/maxio.c
> 
> but it has a number of things wrong with it. You might want to search
> around and see if there are any cleaner versions around, or if anybody
> is working on upstreaming a driver for this PHY.
> 
> 	Andrew
 >

Hi Andrew,
Thank you for your valuable feedback and for pointing me toward 
investigating the PHY configuration further. After digging deeper into 
the MAE0621A-Q3C PHY (PHY ID 0x7b744412), I now understand why it 
performs reliably: the generic PHY driver relies on the GMAC to set 
RGMII delays (tx_delay=0x20, rx_delay=0x10), enabling a stable 1Gbps 
link for gmac0 in rgmii-rxid mode, while rgmii-id failed in my tests due 
to the driver’s lack of internal delay configuration. Given the critical 
role of networking for development, I’d like to retain the GMAC nodes in 
v3 using this setup, but I’d greatly appreciate your approval on whether 
the generic PHY driver is suitable in rgmii-rxid mode for now. I’m eager 
to explore a Maxio-specific driver for mainline compatibility and would 
be grateful for any guidance on existing upstreaming efforts for this PHY.

Best regards,
John

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[Andrew Lunn]

> Hi Andrew,
> Thank you for your valuable feedback and for pointing me toward
> investigating the PHY configuration further. After digging deeper into the
> MAE0621A-Q3C PHY (PHY ID 0x7b744412), I now understand why it performs
> reliably: the generic PHY driver relies on the GMAC to set RGMII delays
> (tx_delay=0x20, rx_delay=0x10), enabling a stable 1Gbps link for gmac0 in
> rgmii-rxid mode, while rgmii-id failed in my tests due to the driver’s lack
> of internal delay configuration. Given the critical role of networking for
> development, I’d like to retain the GMAC nodes in v3 using this setup, but
> I’d greatly appreciate your approval on whether the generic PHY driver is
> suitable in rgmii-rxid mode for now.

Device Tree describes the hardware. The hardware does not appear to
have the 2ns delay added by extra long clock lines, so your DT
description of the hardware using 'rgmii-rxid' is wrong.

If we where to accept this broken description now, it really will
break when the MAE0621A driver is merged and it correctly sets the
RGMII delays.

So sorry, no we cannot accept it.

For you own development work, you can merge the driver i pointed to
into your tree. It needs work, but it is not terrible. So it should
work for you.

> I’m eager to explore a Maxio-specific
> driver for mainline compatibility and would be grateful for any guidance on
> existing upstreaming efforts for this PHY.

This is the first time i've heard of this device, so i have no idea if
anybody else is working on it. I would suggest you reach out to the
author of that patch.

	Andrew

Re: [PATCH v2 3/3] arm64: dts: rockchip: Add Luckfox Omni3576 Board support

[Jonas Karlman]

Hi John,

On 2025-05-04 12:24, John Clark wrote:
> Add device tree for the Luckfox Omni3576 Carrier Board with Core3576
> Module, powered by the Rockchip RK3576 SoC with four Cortex-A72 cores,
> four Cortex-A53 cores, and a Mali-G52 MC3 GPU. This initial
> implementation enables essential functionality for booting Linux and
> basic connectivity.
> 
> Supported and tested features:
>  - UART for serial console
>  - SD card for storage
>  - PCIe with NVMe SSD (detected, mounted, and fully functional)
>  - Gigabit Ethernet 0 with RGMII PHY
>  - USB 2.0 host ports
>  - RK806 PMIC for power management
>  - RTC with timekeeping and wake-up
>  - GPIO-controlled LED with heartbeat trigger
>  - eMMC (enabled, not populated on tested board)
> 
> The device tree provides a foundation for further peripheral support, such
> as WiFi, MIPI-DSI, HDMI, and Ethernet 1, in future updates.
> 
> Tested on Linux 6.15-rc4
> 
> Signed-off-by: John Clark <inindev@gmail.com>
> ---
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../dts/rockchip/rk3576-luckfox-omni3576.dts  | 779 ++++++++++++++++++
>  2 files changed, 780 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
> 
> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
> index 7948522cb225..22d74367b7e6 100644
> --- a/arch/arm64/boot/dts/rockchip/Makefile
> +++ b/arch/arm64/boot/dts/rockchip/Makefile
> @@ -136,6 +136,7 @@ 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-evb1-v10.dtb
> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-luckfox-omni3576.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-roc-pc.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3576-rock-4d.dtb
>  dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3582-radxa-e52c.dtb
> diff --git a/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts b/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
> new file mode 100644
> index 000000000000..73351ba7830c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
> @@ -0,0 +1,779 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2024 Rockchip Electronics Co., Ltd.
> + *
> + */
> +
> +/dts-v1/;
> +
> +#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 "rk3576.dtsi"
> +
> +/ {
> +	model = "Luckfox Omni3576";
> +	compatible = "luckfox,omni3576", "rockchip,rk3576";

Because this is a carrier board this should probably be something like:

  compatible = "luckfox,omni3576", "luckfox,core3576", "rockchip,rk3576";

And this .dts-file should be split up into something like:
- rk3576-luckfox-core3576.dtsi for parts related to the Core3576 SoM
- rk3576-luckfox-omni3576.dts for parts only related to the carrier board

Regards,
Jonas

[snip]

Re: [PATCH v2 0/3] Add Luckfox Omni3576 Carrier Board support for RK3576

[Rob Herring (Arm)]

On Sun, 04 May 2025 06:24:44 -0400, John Clark wrote:
> This series adds device tree support for the Luckfox Omni3576 Carrier Board
> with Core3576 Module, based on the Rockchip RK3576 SoC, enabling essential
> functionality for booting Linux and basic connectivity. v1 was posted at:
> https://lore.kernel.org/linux-rockchip/20250502205533.51744-1-inindev@gmail.com
> 
> Tested features (on Linux 6.15-rc4):
>  - UART: Serial console operational
>  - SD card: Mounts and reads/writes successfully
>  - PCIe: NVMe SSD detected, mounted, and fully functional
>  - Ethernet 0: Functional with RGMII PHY
>  - USB 2.0: Host ports
>  - RTC: Timekeeping and wake-up tested
>  - LED: Heartbeat trigger works
>  - eMMC: Enabled, not populated on tested board
> 
> The series includes the following patches:
>  1. dt-bindings: vendor-prefixes: Add Luckfox vendor prefix
>  2. dt-bindings: arm: rockchip: Add luckfox,omni3576 binding
>  3. arm64: dts: rockchip: Add Luckfox Omni3576 Board support
> 
> The new DTS is covered by the existing ROCKCHIP ARCHITECTURE entry in MAINTAINERS.
> 
> I am aware of ongoing RK3576 upstreaming efforts (e.g., by Collabora) and
> welcome feedback or collaboration to align with mainline driver development.
> 
> Changes in v2:
>  - Enabled HDMI node per feedback from Heiko and Nicolas; untested due to
>    upstream driver issues
>  - Enabled Ethernet 1 node per Heiko's DT philosophy; untested due to
>    suspected PHY driver or configuration issues
>  - Clarified eMMC remains enabled but unpopulated on tested board, per Heiko
> 
> Signed-off-by: John Clark <inindev@gmail.com>
> ---
> John Clark (3):
>   dt-bindings: vendor-prefixes: Add luckfox prefix
>   dt-bindings: arm: rockchip: Add Luckfox Omni3576 board
>   arm64: dts: rockchip: Add Luckfox Omni3576 Board support
> 
>  .../devicetree/bindings/arm/rockchip.yaml     |   5 +
>  .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
>  arch/arm64/boot/dts/rockchip/Makefile         |   1 +
>  .../dts/rockchip/rk3576-luckfox-omni3576.dts  | 779 ++++++++++++++++++
>  4 files changed, 787 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dts
> 
> --
> 2.39.5
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


This patch series was applied (using b4) to base:
 Base: attempting to guess base-commit...
 Base: tags/v6.15-rc1-32-g2acfe31a8ce5 (exact match)

If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)

New warnings running 'make CHECK_DTBS=y for arch/arm64/boot/dts/rockchip/' for 20250504102447.153551-1-inindev@gmail.com:

arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: vop@27d00000 (rockchip,rk3576-vop): 'vop-supply' does not match any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/display/rockchip/rockchip-vop2.yaml#
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: pcie@2a200000 (rockchip,rk3576-pcie): interrupt-names:5: 'dma0' was expected
	from schema $id: http://devicetree.org/schemas/pci/rockchip-dw-pcie.yaml#
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: pcie@2a200000 (rockchip,rk3576-pcie): compatible: 'oneOf' conditional failed, one must be fixed:
	['rockchip,rk3576-pcie', 'rockchip,rk3568-pcie'] is too long
	'rockchip,rk3568-pcie' was expected
	'rockchip,rk3576-pcie' is not one of ['rockchip,rk3588-pcie']
	from schema $id: http://devicetree.org/schemas/pci/rockchip-dw-pcie.yaml#
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: pcie@2a200000 (rockchip,rk3576-pcie): 'msi-map' is a required property
	from schema $id: http://devicetree.org/schemas/pci/rockchip-dw-pcie.yaml#
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: pcie@2a200000 (rockchip,rk3576-pcie): Unevaluated properties are not allowed ('compatible', 'power-domains' were unexpected)
	from schema $id: http://devicetree.org/schemas/pci/rockchip-dw-pcie.yaml#
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: /soc/pcie@2a200000: failed to match any schema with compatible: ['rockchip,rk3576-pcie', 'rockchip,rk3568-pcie']
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: pcie@2a210000 (rockchip,rk3576-pcie): interrupt-names:5: 'dma0' was expected
	from schema $id: http://devicetree.org/schemas/pci/rockchip-dw-pcie.yaml#
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: pcie@2a210000 (rockchip,rk3576-pcie): compatible: 'oneOf' conditional failed, one must be fixed:
	['rockchip,rk3576-pcie', 'rockchip,rk3568-pcie'] is too long
	'rockchip,rk3568-pcie' was expected
	'rockchip,rk3576-pcie' is not one of ['rockchip,rk3588-pcie']
	from schema $id: http://devicetree.org/schemas/pci/rockchip-dw-pcie.yaml#
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: /soc/pcie@2a210000: failed to match any schema with compatible: ['rockchip,rk3576-pcie', 'rockchip,rk3568-pcie']
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: /soc/otp@2a580000: failed to match any schema with compatible: ['rockchip,rk3576-otp']
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: pmic@23 (rockchip,rk806): Unevaluated properties are not allowed ('pwrkey' was unexpected)
	from schema $id: http://devicetree.org/schemas/mfd/rockchip,rk806.yaml#
arch/arm64/boot/dts/rockchip/rk3576-luckfox-omni3576.dtb: hdmiphy@2b000000 (rockchip,rk3576-hdptx-phy): 'phy-supply' does not match any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/phy/rockchip,rk3588-hdptx-phy.yaml#