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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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79f2a17024
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: Hsun Lai <i@chainsx.cn> Link: https://lore.kernel.org/r/20250521131108.5710-4-i@chainsx.cn Signed-off-by: Heiko Stuebner <heiko@sntech.de>
266 lines
5.2 KiB
Plaintext
266 lines
5.2 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* Copyright (c) 2019 Akash Gajjar <akash@openedev.com>
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* Copyright (c) 2019 Jagan Teki <jagan@openedev.com>
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* Copyright (C) 2024 TheSnowfield <thesnowfield@sakurapi.org>
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* Copyright (C) 2025 Hsun Lai <i@chainsx.cn>
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*/
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/dts-v1/;
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#include "rk3308.dtsi"
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#include <dt-bindings/leds/common.h>
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/ {
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model = "Sakura Pi RK3308B";
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compatible = "sakurapi,rk3308-sakurapi-rk3308b", "rockchip,rk3308";
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aliases {
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mmc0 = &emmc;
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mmc1 = &sdmmc;
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mmc2 = &sdio;
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};
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chosen {
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stdout-path = "serial2:1500000n8";
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};
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vcc5v0_sys: regulator-vcc5v0-sys {
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compatible = "regulator-fixed";
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regulator-name = "vcc5v0_sys";
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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};
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vdd_core: regulator-vdd-core {
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compatible = "pwm-regulator";
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pwms = <&pwm0 0 5000 1>;
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regulator-name = "vdd_core";
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regulator-min-microvolt = <827000>;
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regulator-max-microvolt = <1340000>;
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regulator-settling-time-up-us = <250>;
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regulator-always-on;
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regulator-boot-on;
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pwm-supply = <&vcc5v0_sys>;
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};
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vdd_log: regulator-vdd-log {
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compatible = "regulator-fixed";
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regulator-name = "vdd_log";
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <1050000>;
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regulator-max-microvolt = <1050000>;
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vin-supply = <&vcc5v0_sys>;
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};
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vcc_ddr: regulator-vcc-ddr {
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compatible = "regulator-fixed";
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regulator-name = "vcc_ddr";
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <1500000>;
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regulator-max-microvolt = <1500000>;
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vin-supply = <&vcc5v0_sys>;
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};
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vcc_1v8: regulator-vcc-1v8 {
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compatible = "regulator-fixed";
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regulator-name = "vcc_1v8";
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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vin-supply = <&vcc_io>;
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};
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vcc_io: regulator-vcc-io {
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compatible = "regulator-fixed";
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regulator-name = "vcc_io";
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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vin-supply = <&vcc5v0_sys>;
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};
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vcc_phy: regulator-vcc-phy-regulator {
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compatible = "regulator-fixed";
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regulator-name = "vcc_phy";
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regulator-always-on;
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regulator-boot-on;
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};
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vcc5v0_otg: regulator-vcc5v0-otg {
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compatible = "regulator-fixed";
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enable-active-high;
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gpio = <&gpio0 RK_PC5 GPIO_ACTIVE_HIGH>;
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pinctrl-names = "default";
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pinctrl-0 = <&otg_vbus_drv>;
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regulator-name = "vcc5v0_otg";
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regulator-always-on;
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vin-supply = <&vcc5v0_sys>;
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};
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sdio_pwrseq: sdio-pwrseq {
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compatible = "mmc-pwrseq-simple";
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pinctrl-0 = <&wifi_enable_h>;
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pinctrl-names = "default";
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/*
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* On the module itself this is one of these (depending
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* on the actual card populated):
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* - SDIO_RESET_L_WL_REG_ON
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* - PDN (power down when low)
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*/
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reset-gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_LOW>;
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};
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};
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&cpu0 {
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cpu-supply = <&vdd_core>;
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};
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&emmc {
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bus-width = <8>;
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cap-mmc-highspeed;
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non-removable;
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status = "okay";
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};
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&i2c1 {
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status = "okay";
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};
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&pinctrl {
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pinctrl-names = "default";
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pinctrl-0 = <&rtc_32k>;
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bluetooth {
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bt_reg_on: bt-reg-on {
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rockchip,pins = <4 RK_PB3 RK_FUNC_GPIO &pcfg_pull_none>;
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};
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bt_wake_host: bt-wake-host {
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rockchip,pins = <4 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
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};
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host_wake_bt: host-wake-bt {
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rockchip,pins = <4 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
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};
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};
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sdio-pwrseq {
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wifi_enable_h: wifi-enable-h {
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rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
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};
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};
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usb {
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otg_vbus_drv: otg-vbus-drv {
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rockchip,pins = <0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
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};
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};
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wifi {
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wifi_host_wake: wifi-host-wake {
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rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_down>;
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};
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};
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};
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&pwm0 {
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status = "okay";
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pinctrl-0 = <&pwm0_pin_pull_down>;
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};
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&pwm3 {
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status = "okay";
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};
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&saradc {
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vref-supply = <&vcc_1v8>;
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status = "okay";
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};
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&sdio {
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#address-cells = <1>;
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#size-cells = <0>;
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cap-sd-highspeed;
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cap-sdio-irq;
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keep-power-in-suspend;
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mmc-pwrseq = <&sdio_pwrseq>;
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non-removable;
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no-mmc;
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no-sd;
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status = "okay";
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brcmf: wifi@1 {
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compatible = "brcm,bcm43455-fmac", "brcm,bcm4329-fmac";
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reg = <1>;
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interrupt-parent = <&gpio0>;
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interrupts = <RK_PA3 GPIO_ACTIVE_HIGH>;
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interrupt-names = "host-wake";
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pinctrl-names = "default";
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pinctrl-0 = <&wifi_host_wake>;
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};
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};
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&sdmmc {
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cap-mmc-highspeed;
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cap-sd-highspeed;
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disable-wp;
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pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_det &sdmmc_bus4>;
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card-detect-delay = <800>;
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status = "okay";
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};
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&uart2 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart2m0_xfer>;
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status = "okay";
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};
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&uart4 {
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pinctrl-names = "default";
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uart-has-rtscts;
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status = "okay";
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bluetooth {
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compatible = "brcm,bcm4345c5";
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clocks = <&cru SCLK_RTC32K>;
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clock-names = "lpo";
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pinctrl-names = "default";
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pinctrl-0 = <&host_wake_bt &bt_wake_host &bt_reg_on>;
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device-wakeup-gpios = <&gpio4 RK_PB4 GPIO_ACTIVE_HIGH>;
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host-wakeup-gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_HIGH>;
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shutdown-gpios = <&gpio4 RK_PB3 GPIO_ACTIVE_HIGH>;
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max-speed = <1500000>;
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};
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};
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&u2phy {
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status = "okay";
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};
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&u2phy_otg {
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status = "okay";
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};
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&u2phy_host {
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status = "okay";
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};
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&usb20_otg {
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dr_mode = "peripheral";
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status = "okay";
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};
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&usb_host_ehci {
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status = "okay";
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};
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&usb_host_ohci{
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status = "okay";
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};
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