Commit 79f2a170 authored by Hsun Lai's avatar Hsun Lai Committed by Heiko Stuebner
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arm64: dts: rockchip: add DTs for Sakura Pi RK3308B 

The Sakura Pi RK3308B is a SBC based on the Rockchip RK3308 SoC.

Link: https://github.com/Sakura-Pi
Link: https://docs.sakurapi.org/article/sakurapi-rk3308b/introduce



The device contains the following hardware that is tested/working:
 - 4 or 8GB eMMC
 - SDMMC card slot
 - Realtek SDIO WiFi 5/BT
 - 256 or 512MB of RAM
 - USB 2.0 port
 - OTG port

Signed-off-by: default avatarHsun Lai <i@chainsx.cn>
Link: https://lore.kernel.org/r/20250521131108.5710-4-i@chainsx.cn


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent bc099a4f

arch/arm64/boot/dts/rockchip/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-evb.dtb 
dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-roc-cc.dtb

dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-rock-pi-s.dtb

dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-rock-s0.dtb

dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3308-sakurapi-rk3308b.dtb

dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3318-a95x-z2.dtb

dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-anbernic-rg351m.dtb

dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3326-anbernic-rg351v.dtb

arch/arm64/boot/dts/rockchip/rk3308-sakurapi-rk3308b.dts

0 → 100644
+265 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)

/*

 * Copyright (c) 2019 Akash Gajjar <akash@openedev.com>

 * Copyright (c) 2019 Jagan Teki <jagan@openedev.com>

 * Copyright (C) 2024 TheSnowfield <thesnowfield@sakurapi.org>

 * Copyright (C) 2025 Hsun Lai <i@chainsx.cn>

 */



/dts-v1/;

#include "rk3308.dtsi"

#include <dt-bindings/leds/common.h>



/ {

	model = "Sakura Pi RK3308B";

	compatible = "sakurapi,rk3308-sakurapi-rk3308b", "rockchip,rk3308";



	aliases {

		mmc0 = &emmc;

		mmc1 = &sdmmc;

		mmc2 = &sdio;

	};



	chosen {

		stdout-path = "serial2:1500000n8";

	};



	vcc5v0_sys: regulator-vcc5v0-sys {

		compatible = "regulator-fixed";

		regulator-name = "vcc5v0_sys";

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

	};



	vdd_core: regulator-vdd-core {

		compatible = "pwm-regulator";

		pwms = <&pwm0 0 5000 1>;

		regulator-name = "vdd_core";

		regulator-min-microvolt = <827000>;

		regulator-max-microvolt = <1340000>;

		regulator-settling-time-up-us = <250>;

		regulator-always-on;

		regulator-boot-on;

		pwm-supply = <&vcc5v0_sys>;

	};



	vdd_log: regulator-vdd-log {

		compatible = "regulator-fixed";

		regulator-name = "vdd_log";

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <1050000>;

		regulator-max-microvolt = <1050000>;

		vin-supply = <&vcc5v0_sys>;

	};



	vcc_ddr: regulator-vcc-ddr {

		compatible = "regulator-fixed";

		regulator-name = "vcc_ddr";

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <1500000>;

		regulator-max-microvolt = <1500000>;

		vin-supply = <&vcc5v0_sys>;

	};



	vcc_1v8: regulator-vcc-1v8 {

		compatible = "regulator-fixed";

		regulator-name = "vcc_1v8";

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <1800000>;

		vin-supply = <&vcc_io>;

	};



	vcc_io: regulator-vcc-io {

		compatible = "regulator-fixed";

		regulator-name = "vcc_io";

		regulator-always-on;

		regulator-boot-on;

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		vin-supply = <&vcc5v0_sys>;

	};



	vcc_phy: regulator-vcc-phy-regulator {

		compatible = "regulator-fixed";

		regulator-name = "vcc_phy";

		regulator-always-on;

		regulator-boot-on;

	};



	vcc5v0_otg: regulator-vcc5v0-otg {

		compatible = "regulator-fixed";

		enable-active-high;

		gpio = <&gpio0 RK_PC5 GPIO_ACTIVE_HIGH>;

		pinctrl-names = "default";

		pinctrl-0 = <&otg_vbus_drv>;

		regulator-name = "vcc5v0_otg";

		regulator-always-on;

		vin-supply = <&vcc5v0_sys>;

	};



	sdio_pwrseq: sdio-pwrseq {

		compatible = "mmc-pwrseq-simple";

		pinctrl-0 = <&wifi_enable_h>;

		pinctrl-names = "default";

		/*

		 * On the module itself this is one of these (depending

		 * on the actual card populated):

		 * - SDIO_RESET_L_WL_REG_ON

		 * - PDN (power down when low)

		 */

		reset-gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_LOW>;

	};

};



&cpu0 {

	cpu-supply = <&vdd_core>;

};



&emmc {

	bus-width = <8>;

	cap-mmc-highspeed;

	non-removable;

	status = "okay";

};



&i2c1 {

	status = "okay";

};



&pinctrl {

	pinctrl-names = "default";

	pinctrl-0 = <&rtc_32k>;



	bluetooth {

		bt_reg_on: bt-reg-on {

			rockchip,pins = <4 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;

		};



		bt_wake_host: bt-wake-host {

			rockchip,pins = <4 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;

		};



		host_wake_bt: host-wake-bt {

			rockchip,pins = <4 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;

		};

	};



	sdio-pwrseq {

		wifi_enable_h: wifi-enable-h {

			rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;

		};

	};



	usb {

		otg_vbus_drv: otg-vbus-drv {

			rockchip,pins = <0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;

		};

	};



	wifi {

		wifi_host_wake: wifi-host-wake {

			rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_down>;

		};

	};

};



&pwm0 {

	status = "okay";

	pinctrl-0 = <&pwm0_pin_pull_down>;

};



&pwm3 {

	status = "okay";

};



&saradc {

	vref-supply = <&vcc_1v8>;

	status = "okay";

};



&sdio {

	#address-cells = <1>;

	#size-cells = <0>;

	cap-sd-highspeed;

	cap-sdio-irq;

	keep-power-in-suspend;

	mmc-pwrseq = <&sdio_pwrseq>;

	non-removable;

	no-mmc;

	no-sd;

	status = "okay";



	brcmf: wifi@1 {

		compatible = "brcm,bcm43455-fmac", "brcm,bcm4329-fmac";

		reg = <1>;

		interrupt-parent = <&gpio0>;

		interrupts = <RK_PA3 GPIO_ACTIVE_HIGH>;

		interrupt-names = "host-wake";

		pinctrl-names = "default";

		pinctrl-0 = <&wifi_host_wake>;

	};

};



&sdmmc {

	cap-mmc-highspeed;

	cap-sd-highspeed;

	disable-wp;

	pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_det &sdmmc_bus4>;

	card-detect-delay = <800>;

	status = "okay";

};



&uart2 {

	pinctrl-names = "default";

	pinctrl-0 = <&uart2m0_xfer>;

	status = "okay";

};



&uart4 {

	pinctrl-names = "default";

	uart-has-rtscts;

	status = "okay";



	bluetooth {

		compatible = "brcm,bcm4345c5";

		clocks = <&cru SCLK_RTC32K>;

		clock-names = "lpo";

		pinctrl-names = "default";

		pinctrl-0 = <&host_wake_bt &bt_wake_host &bt_reg_on>;

		device-wakeup-gpios = <&gpio4 RK_PB4 GPIO_ACTIVE_HIGH>;

		host-wakeup-gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_HIGH>;

		shutdown-gpios = <&gpio4 RK_PB3 GPIO_ACTIVE_HIGH>;

		max-speed = <1500000>;

	};

};



&u2phy {

	status = "okay";

};



&u2phy_otg {

	status = "okay";

};



&u2phy_host {

	status = "okay";

};



&usb20_otg {

	dr_mode = "peripheral";

	status = "okay";

};



&usb_host_ehci {

	status = "okay";

};



&usb_host_ohci{

	status = "okay";

};