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 <naoki@radxa.com>
Link: https://patch.msgid.link/20260108113341.14037-3-naoki@radxa.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

authored by

FUKAUMI Naoki and committed by

Heiko Stuebner 5 months ago d813ddc0 9103e21e

+205

2 changed files

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arch

arm64

boot

dts

rockchip

Makefile

rk3568-radxa-cm3j-rpi-cm4.dts

arch/arm64/boot/dts/rockchip/Makefile

··· 149 149 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-photonicat.dtb 150 150 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts233.dtb 151 151 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-qnap-ts433.dtb 152 + dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-radxa-cm3j-rpi-cm4.dtb 152 153 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-radxa-e25.dtb 153 154 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-roc-pc.dtb 154 155 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3a.dtb

+204

arch/arm64/boot/dts/rockchip/rk3568-radxa-cm3j-rpi-cm4.dts

··· 1 + // SPDX-License-Identifier: (GPL-2.0+ OR MIT) 2 + /* 3 + * Copyright (c) 2025 Radxa Computer (Shenzhen) Co., Ltd. 4 + */ 5 + 6 + /dts-v1/; 7 + 8 + #include <dt-bindings/leds/common.h> 9 + #include <dt-bindings/gpio/gpio.h> 10 + #include <dt-bindings/pinctrl/rockchip.h> 11 + #include "rk3568-radxa-cm3j.dtsi" 12 + 13 + / { 14 + model = "Radxa CM3J on RPi CM4 IO Board"; 15 + compatible = "radxa,cm3j-rpi-cm4", "radxa,cm3j", "rockchip,rk3568"; 16 + 17 + aliases { 18 + ethernet0 = &gmac1; 19 + mmc1 = &sdmmc0; 20 + rtc0 = &pcf85063; 21 + }; 22 + 23 + chosen { 24 + stdout-path = "serial2:1500000n8"; 25 + }; 26 + 27 + hdmi-con { 28 + compatible = "hdmi-connector"; 29 + type = "a"; 30 + 31 + port { 32 + hdmi_con_in: endpoint { 33 + remote-endpoint = <&hdmi_out_con>; 34 + }; 35 + }; 36 + }; 37 + 38 + leds-1 { 39 + compatible = "gpio-leds"; 40 + 41 + led-1 { 42 + color = <LED_COLOR_ID_RED>; 43 + default-state = "on"; 44 + function = LED_FUNCTION_POWER; 45 + gpios = <&gpio3 RK_PC4 GPIO_ACTIVE_LOW>; 46 + pinctrl-names = "default"; 47 + pinctrl-0 = <&npwr_led>; 48 + }; 49 + 50 + led-2 { 51 + color = <LED_COLOR_ID_GREEN>; 52 + default-state = "on"; 53 + function = LED_FUNCTION_STATUS; 54 + gpios = <&gpio4 RK_PC6 GPIO_ACTIVE_LOW>; 55 + linux,default-trigger = "heartbeat"; 56 + pinctrl-names = "default"; 57 + pinctrl-0 = <&pi_nled_activity>; 58 + }; 59 + }; 60 + 61 + dc12v: regulator-12v0 { 62 + compatible = "regulator-fixed"; 63 + regulator-name = "dc12v"; 64 + regulator-always-on; 65 + regulator-boot-on; 66 + regulator-min-microvolt = <12000000>; 67 + regulator-max-microvolt = <12000000>; 68 + }; 69 + 70 + dc3v3_pcie: regulator-3v3-2 { 71 + compatible = "regulator-fixed"; 72 + regulator-name = "dc3v3_pcie"; 73 + regulator-always-on; 74 + regulator-boot-on; 75 + regulator-min-microvolt = <3300000>; 76 + regulator-max-microvolt = <3300000>; 77 + vin-supply = <&dc12v>; 78 + }; 79 + 80 + gpio_vref: regulator-3v3-3 { 81 + compatible = "regulator-fixed"; 82 + regulator-name = "gpio_vref"; 83 + regulator-always-on; 84 + regulator-boot-on; 85 + regulator-min-microvolt = <3300000>; 86 + regulator-max-microvolt = <3300000>; 87 + vin-supply = <&dc3v3>; 88 + }; 89 + 90 + dc5v: regulator-5v0 { 91 + compatible = "regulator-fixed"; 92 + regulator-name = "dc5v"; 93 + regulator-always-on; 94 + regulator-boot-on; 95 + regulator-min-microvolt = <5000000>; 96 + regulator-max-microvolt = <5000000>; 97 + vin-supply = <&dc12v>; 98 + }; 99 + }; 100 + 101 + &combphy0 { 102 + status = "okay"; 103 + }; 104 + 105 + &combphy2 { 106 + status = "okay"; 107 + }; 108 + 109 + &gmac1 { 110 + status = "okay"; 111 + }; 112 + 113 + &gpio0 { 114 + nextrst-hog { 115 + gpio-hog; 116 + /* 117 + * GPIO_ACTIVE_LOW + output-low here means that the pin is set 118 + * to high, because output-low decides the value pre-inversion. 119 + */ 120 + gpios = <RK_PC0 GPIO_ACTIVE_LOW>; 121 + line-name = "nEXTRST"; 122 + output-low; 123 + }; 124 + }; 125 + 126 + &hdmi { 127 + status = "okay"; 128 + }; 129 + 130 + &hdmi_sound { 131 + status = "okay"; 132 + }; 133 + 134 + &i2c0 { 135 + emc2301: fan-controller@2f { 136 + compatible = "microchip,emc2301", "microchip,emc2305"; 137 + reg = <0x2f>; 138 + #address-cells = <1>; 139 + #size-cells = <0>; 140 + #pwm-cells = <3>; 141 + 142 + fan@0 { 143 + reg = <0x0>; 144 + pwms = <&emc2301 26000 0 1>; 145 + #cooling-cells = <2>; 146 + }; 147 + }; 148 + 149 + pcf85063: rtc@51 { 150 + compatible = "nxp,pcf85063a"; 151 + reg = <0x51>; 152 + wakeup-source; 153 + }; 154 + }; 155 + 156 + &i2s0_8ch { 157 + status = "okay"; 158 + }; 159 + 160 + &pinctrl { 161 + leds { 162 + npwr_led: npwr-led { 163 + rockchip,pins = <3 RK_PC4 RK_FUNC_GPIO &pcfg_pull_none>; 164 + }; 165 + 166 + pi_nled_activity: pi-nled-activity { 167 + rockchip,pins = <4 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>; 168 + }; 169 + }; 170 + }; 171 + 172 + &pcie2x1 { 173 + vpcie3v3-supply = <&dc3v3_pcie>; 174 + status = "okay"; 175 + }; 176 + 177 + &sdmmc0 { 178 + bus-width = <4>; 179 + cap-sd-highspeed; 180 + broken-cd; 181 + disable-wp; 182 + no-mmc; 183 + no-sdio; 184 + pinctrl-names = "default"; 185 + pinctrl-0 = <&sdmmc0_bus4 &sdmmc0_clk &sdmmc0_cmd>; 186 + vmmc-supply = <&dc3v3>; 187 + status = "okay"; 188 + }; 189 + 190 + &uart2 { 191 + status = "okay"; 192 + }; 193 + 194 + &usb2phy0 { 195 + status = "okay"; 196 + }; 197 + 198 + &usb2phy0_otg { 199 + status = "okay"; 200 + }; 201 + 202 + &usb_host0_xhci { 203 + status = "okay"; 204 + };

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