[RFC PATCH 2/3] arm64: dts: rockchip: Add Radxa CM3J
FUKAUMI Naoki
naoki at radxa.com
Sun Dec 28 23:38:39 PST 2025
The Radxa CM3J is a feature rich industrial compute module based on
the Rockchip RK3568J SoC. [1]
Specification:
- Quad-core Cortex-A55 CPU
- Mali-G52 2EE GPU
- 1TOPS NPU
- Up to 8GB LPDDR4x RAM
- Up to 32GB eMMC (optional)
- 16MB SPI flash (optional)
- Wi-Fi 5 / BT 5.0 with external antenna connector
- Gigabit Ethernet PHY
- RK809 PMIC
- Green (power) LED
[1] https://dl.radxa.com/cm3j/docs/hw/radxa_cm3j_schematic_v1.2_20250115.pdf
Signed-off-by: FUKAUMI Naoki <naoki at radxa.com>
---
.../boot/dts/rockchip/rk3568-radxa-cm3j.dtsi | 570 ++++++++++++++++++
arch/arm64/configs/linux.radxa.config | 1 +
2 files changed, 571 insertions(+)
create mode 100644 arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j.dtsi
create mode 120000 arch/arm64/configs/linux.radxa.config
diff --git a/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j.dtsi b/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j.dtsi
new file mode 100644
index 000000000000..c503e876bcfd
--- /dev/null
+++ b/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j.dtsi
@@ -0,0 +1,570 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2025 Radxa Computer (Shenzhen) Co., Ltd.
+ */
+
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/soc/rockchip,vop2.h>
+#include "rk3568.dtsi"
+
+/ {
+ aliases {
+ mmc0 = &sdhci;
+ mmc2 = &sdmmc2;
+ };
+
+ gmac1_clkin: clock-125m {
+ compatible = "fixed-clock";
+ clock-frequency = <125000000>;
+ clock-output-names = "gmac1_clkin";
+ #clock-cells = <0>;
+ };
+
+ leds-0 {
+ compatible = "gpio-leds";
+
+ led-0 {
+ color = <LED_COLOR_ID_GREEN>;
+ default-state = "on";
+ function = LED_FUNCTION_POWER;
+ gpios = <&gpio0 RK_PB4 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&gpio0_b4_led>;
+ };
+ };
+
+ vcc3v3_sys: regulator-3v3-0 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3_sys";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&dc5v>;
+ };
+
+ vcc_3v3_1: regulator-3v3-1 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_3v3_1";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vcc3v3_sys>;
+ };
+
+ sdio_pwrseq: sdio-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&rk809 1>;
+ clock-names = "ext_clock";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_reg_on_h_gpio3_d4>;
+ reset-gpios = <&gpio3 RK_PD4 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&vdd_cpu>;
+};
+
+&cpu1 {
+ cpu-supply = <&vdd_cpu>;
+};
+
+&cpu2 {
+ cpu-supply = <&vdd_cpu>;
+};
+
+&cpu3 {
+ cpu-supply = <&vdd_cpu>;
+};
+
+&gmac1 {
+ assigned-clocks = <&cru SCLK_GMAC1_RX_TX>, <&cru SCLK_GMAC1>;
+ assigned-clock-parents = <&cru SCLK_GMAC1_RGMII_SPEED>, <&gmac1_clkin>;
+ clock_in_out = "input";
+ phy-handle = <&rgmii_phy1>;
+ phy-mode = "rgmii-id";
+ phy-supply = <&vcc_3v3_1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&gmac1m1_miim
+ &gmac1m1_clkinout
+ &gmac1m1_rx_bus2
+ &gmac1m1_tx_bus2
+ &gmac1m1_rgmii_clk
+ &gmac1m1_rgmii_bus>;
+};
+
+&gpu {
+ mali-supply = <&vdd_gpu>;
+ status = "okay";
+};
+
+&hdmi {
+ avdd-0v9-supply = <&vdda0v9_image>;
+ avdd-1v8-supply = <&vcca1v8_image>;
+};
+
+&hdmi_in {
+ hdmi_in_vp0: endpoint {
+ remote-endpoint = <&vp0_out_hdmi>;
+ };
+};
+
+&hdmi_out {
+ hdmi_out_con: endpoint {
+ remote-endpoint = <&hdmi_con_in>;
+ };
+};
+
+&i2c0 {
+ status = "okay";
+
+ rk809: pmic at 20 {
+ compatible = "rockchip,rk809";
+ reg = <0x20>;
+ #clock-cells = <1>;
+ clock-output-names = "rk809-clkout1", "rk809-clkout2";
+ interrupt-parent = <&gpio0>;
+ interrupts = <RK_PA3 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pmic_int_l>;
+ system-power-controller;
+ vcc1-supply = <&vcc3v3_sys>;
+ vcc2-supply = <&vcc3v3_sys>;
+ vcc3-supply = <&vcc3v3_sys>;
+ vcc4-supply = <&vcc3v3_sys>;
+ vcc5-supply = <&vcc3v3_sys>;
+ vcc6-supply = <&vcc3v3_sys>;
+ vcc7-supply = <&vcc3v3_sys>;
+ vcc8-supply = <&vcc3v3_sys>;
+ vcc9-supply = <&vcc3v3_sys>;
+ wakeup-source;
+
+ regulators {
+ vdd_logic: DCDC_REG1 {
+ regulator-name = "vdd_logic";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-initial-mode = <0x2>;
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdd_gpu: DCDC_REG2 {
+ regulator-name = "vdd_gpu";
+ regulator-initial-mode = <0x2>;
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc_ddr: DCDC_REG3 {
+ regulator-name = "vcc_ddr";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-initial-mode = <0x2>;
+
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ };
+ };
+
+ vdd_npu: DCDC_REG4 {
+ regulator-name = "vdd_npu";
+ regulator-initial-mode = <0x2>;
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-ramp-delay = <6001>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ dc1v8: vccio_flash: vcc_1v8: DCDC_REG5 {
+ regulator-name = "vcc_1v8";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdda0v9_image: LDO_REG1 {
+ regulator-name = "vdda0v9_image";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdda_0v9: LDO_REG2 {
+ regulator-name = "vdda_0v9";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vdda0v9_pmu: LDO_REG3 {
+ regulator-name = "vdda0v9_pmu";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <900000>;
+
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <900000>;
+ };
+ };
+
+ vccio_acodec: LDO_REG4 {
+ regulator-name = "vccio_acodec";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vccio_sd: LDO_REG5 {
+ regulator-name = "vccio_sd";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc3v3_pmu: LDO_REG6 {
+ regulator-name = "vcc3v3_pmu";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <3300000>;
+ };
+ };
+
+ vcca_1v8: LDO_REG7 {
+ regulator-name = "vcca_1v8";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcca1v8_pmu: LDO_REG8 {
+ regulator-name = "vcca1v8_pmu";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ regulator-state-mem {
+ regulator-on-in-suspend;
+ regulator-suspend-microvolt = <1800000>;
+ };
+ };
+
+ vcca1v8_image: LDO_REG9 {
+ regulator-name = "vcca1v8_image";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ dc3v3: vcc_3v3: SWITCH_REG1 {
+ regulator-name = "vcc_3v3";
+ regulator-always-on;
+ regulator-boot-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+
+ vcc3v3_sd: SWITCH_REG2 {
+ regulator-name = "vcc3v3_sd";
+ regulator-always-on;
+ regulator-boot-on;
+
+ regulator-state-mem {
+ regulator-off-in-suspend;
+ };
+ };
+ };
+ };
+
+ vdd_cpu: regulator at 40 {
+ compatible = "silergy,syr827";
+ reg = <0x40>;
+ fcs,suspend-voltage-selector = <1>;
+ regulator-name = "vdd_cpu";
+ regulator-always-on;
+ regulator-boot-on;
+ regulator-min-microvolt = <712500>;
+ regulator-max-microvolt = <1390000>;
+ regulator-ramp-delay = <2300>;
+ vin-supply = <&dc5v>;
+ };
+};
+
+&i2c2 {
+ status = "okay";
+
+ eeprom at 50 {
+ compatible = "belling,bl24c16a", "atmel,24c16";
+ reg = <0x50>;
+ pagesize = <16>;
+ read-only;
+ vcc-supply = <&gpio_vref>;
+ };
+};
+
+&mdio1 {
+ rgmii_phy1: ethernet-phy at 0 {
+ compatible = "ethernet-phy-id001c.c916";
+ reg = <0x0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&gmac1_rstn_gpio3_b0>; // GPIO4_C3
+ reset-assert-us = <20000>;
+ reset-deassert-us = <100000>;
+ reset-gpios = <&gpio4 RK_PC3 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&pinctrl {
+ bluetooth {
+ bt_reg_on_h_gpio4_b2: bt-reg-on-h-gpio4-b2 {
+ rockchip,pins = <4 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ bt_wake_host_h_gpio4_b4: bt-wake-host-h-gpio4-b4 {
+ rockchip,pins = <4 RK_PB4 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+
+ host_wake_bt_h_gpio4_b5: host-wake-bt-h-gpio4-b5 {
+ rockchip,pins = <4 RK_PB5 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ ethernet {
+ gmac1_rstn_gpio3_b0: gmac1-rstn-gpio3-b0 {
+ rockchip,pins = <4 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ leds {
+ gpio0_b4_led: gpio0-b4-led {
+ rockchip,pins = <0 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ pcie {
+ pcie20_clkreqnm2: pcie20_clkreqnm2 {
+ rockchip,pins = <1 RK_PB0 4 &pcfg_pull_none>;
+ };
+
+ pcie_nrst: pcie-nrst {
+ rockchip,pins = <1 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
+ pmic {
+ pmic_int_l: pmic-int-l {
+ rockchip,pins = <0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;
+ };
+ };
+
+ wifi {
+ wifi_reg_on_h_gpio3_d4: wifi-reg-on-h-gpio3-d4 {
+ rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ wifi_wake_host_h_gpio3_d5: wifi-wake-host-h-gpio3-d5 {
+ rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_down>;
+ };
+ };
+};
+
+&pcie2x1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie20_clkreqnm2 &pcie_nrst>;
+ reset-gpios = <&gpio1 RK_PB2 GPIO_ACTIVE_HIGH>;
+ supports-clkreq;
+};
+
+&pmu_io_domains {
+ pmuio1-supply = <&vcc3v3_pmu>;
+ pmuio2-supply = <&vcc_3v3>;
+ vccio1-supply = <&vccio_acodec>;
+ vccio2-supply = <&vccio_flash>;
+ vccio3-supply = <&vccio_sd>;
+ vccio4-supply = <&vcc_1v8>;
+ vccio5-supply = <&vcc_3v3>;
+ vccio6-supply = <&vcc_1v8>;
+ vccio7-supply = <&vcc_3v3>;
+ status = "okay";
+};
+
+&saradc {
+ vref-supply = <&vcca_1v8>;
+ status = "okay";
+};
+
+&sdhci {
+ bus-width = <8>;
+ cap-mmc-highspeed;
+ mmc-hs200-1_8v;
+ max-frequency = <200000000>;
+ no-sd;
+ no-sdio;
+ non-removable;
+ pinctrl-names = "default";
+ pinctrl-0 = <&emmc_bus8 &emmc_clk &emmc_cmd &emmc_datastrobe>;
+ vmmc-supply = <&vcc_3v3>;
+ vqmmc-supply = <&vccio_flash>;
+ status = "okay";
+};
+
+&sdmmc2 {
+ #address-cells = <1>;
+ bus-width = <4>;
+ cap-sd-highspeed;
+ cap-sdio-irq;
+ disable-wp;
+ keep-power-in-suspend;
+ max-frequency = <200000000>;
+ mmc-pwrseq = <&sdio_pwrseq>;
+ no-mmc;
+ no-sd;
+ non-removable;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdmmc2m0_bus4 &sdmmc2m0_clk &sdmmc2m0_cmd>;
+ sd-uhs-sdr104;
+ #size-cells = <0>;
+ status = "okay";
+
+ wifi at 1 {
+ compatible = "brcm,bcm43456-fmac", "brcm,bcm4329-fmac";
+ reg = <1>;
+#if 0
+ // brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
+ interrupt-parent = <&gpio3>;
+ interrupts = <RK_PD5 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "host-wake";
+#endif
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_wake_host_h_gpio3_d5>;
+ };
+};
+
+&sfc {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ flash at 0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <104000000>;
+ spi-rx-bus-width = <4>;
+ spi-tx-bus-width = <4>;
+ vcc-supply = <&vccio_flash>;
+ };
+};
+
+&tsadc {
+ rockchip,hw-tshut-mode = <1>;
+ rockchip,hw-tshut-polarity = <0>;
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart8 {
+ dma-names = "tx", "rx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart8m0_xfer &uart8m0_ctsn &uart8m0_rtsn>;
+ uart-has-rtscts;
+ status = "okay";
+
+ bluetooth {
+ compatible = "brcm,bcm4345c5";
+ clocks = <&rk809 1>;
+ clock-names = "lpo";
+ device-wakeup-gpios = <&gpio4 RK_PB5 GPIO_ACTIVE_HIGH>;
+ host-wakeup-gpios = <&gpio4 RK_PB4 GPIO_ACTIVE_HIGH>;
+ max-speed = <1500000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&bt_reg_on_h_gpio4_b2
+ &bt_wake_host_h_gpio4_b4
+ &host_wake_bt_h_gpio4_b5>;
+ shutdown-gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_HIGH>;
+ vbat-supply = <&vcc_3v3_1>;
+ vddio-supply = <&vcc_1v8>;
+ };
+};
+
+&usb_host0_xhci {
+ extcon = <&usb2phy0>;
+ maximum-speed = "high-speed";
+ phys = <&usb2phy0_otg>;
+ phy-names = "usb2-phy";
+};
+
+&vop {
+ assigned-clocks = <&cru DCLK_VOP0>, <&cru DCLK_VOP1>;
+ assigned-clock-parents = <&pmucru PLL_HPLL>, <&cru PLL_VPLL>;
+ status = "okay";
+};
+
+&vop_mmu {
+ status = "okay";
+};
+
+&vp0 {
+ vp0_out_hdmi: endpoint at ROCKCHIP_VOP2_EP_HDMI0 {
+ reg = <ROCKCHIP_VOP2_EP_HDMI0>;
+ remote-endpoint = <&hdmi_in_vp0>;
+ };
+};
diff --git a/arch/arm64/configs/linux.radxa.config b/arch/arm64/configs/linux.radxa.config
new file mode 120000
index 000000000000..8af66a0e7a96
--- /dev/null
+++ b/arch/arm64/configs/linux.radxa.config
@@ -0,0 +1 @@
+/home/radxa/linux.radxa.config
\ No newline at end of file
--
2.43.0
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