From d813ddc0b348febf32fc9d7737ba82d2955051ac Mon Sep 17 00:00:00 2001 From: FUKAUMI Naoki Date: Thu, 8 Jan 2026 11:33:41 +0000 Subject: [PATCH] arm64: dts: rockchip: Add Radxa CM3J on RPi CM4 IO Board The Raspberry Pi Compute Module 4 IO Board is an application board for the Compute Module 4. [1] This patch adds support for the Radxa CM3J mounted on the RPi CM4 IO Board. Specification: - 12V 5521 DC jack - 2x full-size HDMI 2.0 connectors (only HDMI0 is supported with CM3J) - Gigabit Ethernet RJ45 with PoE support - 2x USB 2.0 connectors, with header for two more connectors - Micro USB connector - microSD card socket - PCIe Gen 2 x1 socket - 12V 4-pin PWM fan connector - External power connector (+5V, +12V) - 2x MIPI DSI connectors - 2x MIPI CSI-2 connectors - 40-pin GPIO header - RTC with battery socket - Red (power) and green (heartbeat) LEDs [1] https://datasheets.raspberrypi.com/cm4io/cm4io-datasheet.pdf Signed-off-by: FUKAUMI Naoki Link: https://patch.msgid.link/20260108113341.14037-3-naoki@radxa.com Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/Makefile | 1 + .../rockchip/rk3568-radxa-cm3j-rpi-cm4.dts | 204 ++++++++++++++++++ 2 files changed, 205 insertions(+) create mode 100644 arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j-rpi-cm4.dts diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile index 1bb97cd6e4b03..31a501a1717e7 100644 --- a/arch/arm64/boot/dts/rockchip/Makefile +++ b/arch/arm64/boot/dts/rockchip/Makefile @@ -149,6 +149,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-odroid-m1.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-photonicat.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts233.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts433.dtb +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-radxa-cm3j-rpi-cm4.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-radxa-e25.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-roc-pc.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3a.dtb diff --git a/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j-rpi-cm4.dts b/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j-rpi-cm4.dts new file mode 100644 index 0000000000000..b91ac0ca854c1 --- /dev/null +++ b/arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j-rpi-cm4.dts @@ -0,0 +1,204 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2025 Radxa Computer (Shenzhen) Co., Ltd. + */ + +/dts-v1/; + +#include +#include +#include +#include "rk3568-radxa-cm3j.dtsi" + +/ { + model = "Radxa CM3J on RPi CM4 IO Board"; + compatible = "radxa,cm3j-rpi-cm4", "radxa,cm3j", "rockchip,rk3568"; + + aliases { + ethernet0 = &gmac1; + mmc1 = &sdmmc0; + rtc0 = &pcf85063; + }; + + chosen { + stdout-path = "serial2:1500000n8"; + }; + + hdmi-con { + compatible = "hdmi-connector"; + type = "a"; + + port { + hdmi_con_in: endpoint { + remote-endpoint = <&hdmi_out_con>; + }; + }; + }; + + leds-1 { + compatible = "gpio-leds"; + + led-1 { + color = ; + default-state = "on"; + function = LED_FUNCTION_POWER; + gpios = <&gpio3 RK_PC4 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&npwr_led>; + }; + + led-2 { + color = ; + default-state = "on"; + function = LED_FUNCTION_STATUS; + gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>; + linux,default-trigger = "heartbeat"; + pinctrl-names = "default"; + pinctrl-0 = <&pi_nled_activity>; + }; + }; + + dc12v: regulator-12v0 { + compatible = "regulator-fixed"; + regulator-name = "dc12v"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <12000000>; + regulator-max-microvolt = <12000000>; + }; + + dc3v3_pcie: regulator-3v3-2 { + compatible = "regulator-fixed"; + regulator-name = "dc3v3_pcie"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&dc12v>; + }; + + gpio_vref: regulator-3v3-3 { + compatible = "regulator-fixed"; + regulator-name = "gpio_vref"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&dc3v3>; + }; + + dc5v: regulator-5v0 { + compatible = "regulator-fixed"; + regulator-name = "dc5v"; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + vin-supply = <&dc12v>; + }; +}; + +&combphy0 { + status = "okay"; +}; + +&combphy2 { + status = "okay"; +}; + +&gmac1 { + status = "okay"; +}; + +&gpio0 { + nextrst-hog { + gpio-hog; + /* + * GPIO_ACTIVE_LOW + output-low here means that the pin is set + * to high, because output-low decides the value pre-inversion. + */ + gpios = ; + line-name = "nEXTRST"; + output-low; + }; +}; + +&hdmi { + status = "okay"; +}; + +&hdmi_sound { + status = "okay"; +}; + +&i2c0 { + emc2301: fan-controller@2f { + compatible = "microchip,emc2301", "microchip,emc2305"; + reg = <0x2f>; + #address-cells = <1>; + #size-cells = <0>; + #pwm-cells = <3>; + + fan@0 { + reg = <0x0>; + pwms = <&emc2301 26000 0 1>; + #cooling-cells = <2>; + }; + }; + + pcf85063: rtc@51 { + compatible = "nxp,pcf85063a"; + reg = <0x51>; + wakeup-source; + }; +}; + +&i2s0_8ch { + status = "okay"; +}; + +&pinctrl { + leds { + npwr_led: npwr-led { + rockchip,pins = <3 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>; + }; + + pi_nled_activity: pi-nled-activity { + rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; +}; + +&pcie2x1 { + vpcie3v3-supply = <&dc3v3_pcie>; + status = "okay"; +}; + +&sdmmc0 { + bus-width = <4>; + cap-sd-highspeed; + broken-cd; + disable-wp; + no-mmc; + no-sdio; + pinctrl-names = "default"; + pinctrl-0 = <&sdmmc0_bus4 &sdmmc0_clk &sdmmc0_cmd>; + vmmc-supply = <&dc3v3>; + status = "okay"; +}; + +&uart2 { + status = "okay"; +}; + +&usb2phy0 { + status = "okay"; +}; + +&usb2phy0_otg { + status = "okay"; +}; + +&usb_host0_xhci { + status = "okay"; +}; -- 2.47.3