// 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";
};
