From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Brent Roman <genosenosor@gmail.com>
Date: Wed, 7 Feb 2024 18:02:07 -0800
Subject: Added Linux device tree for Rock S0

Signed-off-by: Brent Roman <genosenosor@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3308-rock-s0.dts | 346 ++++++----
 1 file changed, 200 insertions(+), 146 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3308-rock-s0.dts b/arch/arm64/boot/dts/rockchip/rk3308-rock-s0.dts
index 111111111111..222222222222 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308-rock-s0.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308-rock-s0.dts
@@ -1,21 +1,17 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 Akash Gajjar <akash@openedev.com>
+ * Copyright (c) 2019 Jagan Teki <jagan@openedev.com>
+ * Revised: 2024 Brent Roman <brent@mbari.org>
+ */
 
 /dts-v1/;
-
-#include <dt-bindings/leds/common.h>
 #include "rk3308.dtsi"
 
 / {
 	model = "Radxa ROCK S0";
 	compatible = "radxa,rock-s0", "rockchip,rk3308";
 
-	aliases {
-		ethernet0 = &gmac;
-		mmc0 = &emmc;
-		mmc1 = &sdmmc;
-		mmc2 = &sdio;
-	};
-
 	chosen {
 		stdout-path = "serial0:1500000n8";
 	};
@@ -23,38 +19,70 @@ chosen {
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
-		pinctrl-0 = <&pwr_led>;
+		pinctrl-0 = <&green_led_gio>;
 
-		led-green {
-			color = <LED_COLOR_ID_GREEN>;
-			default-state = "on";
-			function = LED_FUNCTION_HEARTBEAT;
+		green-led {
+			label = "rock-s0:green:power";
 			gpios = <&gpio0 RK_PB6 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
+			default-state = "on";
 		};
 	};
 
-	vdd_log: regulator-1v04-vdd-log {
-		compatible = "regulator-fixed";
-		regulator-name = "vdd_log";
-		regulator-always-on;
-		regulator-boot-on;
-		regulator-min-microvolt = <1040000>;
-		regulator-max-microvolt = <1040000>;
-		vin-supply = <&vcc5v0_sys>;
+	acodec-sound {
+			compatible = "simple-audio-card";
+			simple-audio-card,format = "i2s";
+			simple-audio-card,name = "rockchip,rk3308-acodec";
+			simple-audio-card,mclk-fs = <256>;
+			simple-audio-card,codec-hp-det;
+			simple-audio-card,widgets =
+				"Headphone", "Headphones";
+			simple-audio-card,cpu {
+				sound-dai = <&i2s_8ch_2>;
+			};
+			simple-audio-card,codec {
+				sound-dai = <&codec>;
+			};
 	};
 
-	vcc_ddr: regulator-1v5-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>;
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,mclk-fs = <256>;
+		simple-audio-card,name = "i2s_8ch_0";
+
+		simple-audio-card,dai-link@1 {
+			format = "i2s";
+			cpu {
+				sound-dai = <&i2s_8ch_0>;
+			};
+
+			codec {
+				sound-dai = <&pcm5102a>;
+			};
+		};
+	};
+
+	pcm5102a: pcm5102a {
+			#sound-dai-cells = <0>;
+			compatible = "ti,pcm5102a";
+			pcm510x,format = "i2s";
+	};
+
+	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>;
 	};
 
-	vcc_1v8: regulator-1v8-vcc {
+	vcc_1v8: vcc-1v8 {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_1v8";
 		regulator-always-on;
@@ -64,7 +92,7 @@ vcc_1v8: regulator-1v8-vcc {
 		vin-supply = <&vcc_io>;
 	};
 
-	vcc_io: regulator-3v3-vcc-io {
+	vcc_io: vcc-io {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_io";
 		regulator-always-on;
@@ -74,7 +102,28 @@ vcc_io: regulator-3v3-vcc-io {
 		vin-supply = <&vcc5v0_sys>;
 	};
 
-	vcc5v0_sys: regulator-5v0-vcc-sys {
+	vcc_ddr: 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>;
+	};
+
+	vcc5v0_otg: 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>;
+	};
+
+	vcc5v0_sys: vcc5v0-sys {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc5v0_sys";
 		regulator-always-on;
@@ -83,119 +132,150 @@ vcc5v0_sys: regulator-5v0-vcc-sys {
 		regulator-max-microvolt = <5000000>;
 	};
 
-	vdd_core: regulator-vdd-core {
+	vdd_core: vdd-core {
 		compatible = "pwm-regulator";
 		pwms = <&pwm0 0 5000 1>;
 		pwm-supply = <&vcc5v0_sys>;
 		regulator-name = "vdd_core";
-		regulator-always-on;
-		regulator-boot-on;
 		regulator-min-microvolt = <827000>;
 		regulator-max-microvolt = <1340000>;
+		regulator-init-microvolt = <1015000>;
 		regulator-settling-time-up-us = <250>;
+		regulator-always-on;
+		regulator-boot-on;
 	};
 
-	sdio_pwrseq: sdio-pwrseq {
-		compatible = "mmc-pwrseq-simple";
+	vdd_log: 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>;
+	};
+
+	board_antenna: board-antenna {
+		status = "okay";
+		compatible = "regulator-fixed";
+		enable-active-low;
+		gpio = <&gpio0 RK_PA5 GPIO_ACTIVE_LOW>;
+		regulator-always-on;
+		regulator-boot-on;
+		pinctrl-0 = <&ant_1>;
 		pinctrl-names = "default";
-		pinctrl-0 = <&wifi_reg_on>;
-		reset-gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_LOW>;
+		regulator-name = "board_antenna";
 	};
 };
 
+&codec {
+	status = "okay";
+	#sound-dai-cells = <0>;
+};
+
 &cpu0 {
 	cpu-supply = <&vdd_core>;
 };
 
 &emmc {
 	cap-mmc-highspeed;
-	no-sd;
-	no-sdio;
+	mmc-hs200-1_8v;
 	non-removable;
-	pinctrl-names = "default";
-	pinctrl-0 = <&emmc_bus8 &emmc_clk &emmc_cmd &emmc_pwren>;
-	vmmc-supply = <&vcc_io>;
+	vmmc-supply = <&vcc_io>;  //was vin-supply
+        status = "okay";
+};
+
+&sdmmc {
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	card-detect-delay = <800>;
 	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;
+	status = "okay";
+
+	AP6212: wifi@1 {
+		compatible = "brcm,bcm4329-fmac";
+		reg = <1>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PA0 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "host-wake";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_host_wake>;
+	};
+};
+
 &gmac {
-	clock_in_out = "output";
-	phy-handle = <&rtl8201f>;
 	phy-supply = <&vcc_io>;
+	clock_in_out = "output";
+	assigned-clocks = <&cru SCLK_MAC>;
+	assigned-clock-parents = <&cru SCLK_MAC_SRC>;
+	snps,reset-gpio = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 50000 50000>;
 	status = "okay";
+};
 
-	mdio {
-		compatible = "snps,dwmac-mdio";
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		rtl8201f: ethernet-phy@1 {
-			compatible = "ethernet-phy-ieee802.3-c22";
-			reg = <1>;
-			pinctrl-names = "default";
-			pinctrl-0 = <&mac_rst>;
-			reset-assert-us = <20000>;
-			reset-deassert-us = <50000>;
-			reset-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
-		};
-	};
+&i2s_8ch_0 {
+	assigned-clocks = <&cru SCLK_I2S0_8CH_RX>;
+	assigned-clock-parents = <&cru SCLK_I2S0_8CH_TX_MUX>;
+	rockchip,clk-trcm = <1>;
+	#sound-dai-cells = <0>;
 };
 
-&io_domains {
-	vccio0-supply = <&vcc_io>;
-	vccio1-supply = <&vcc_io>;
-	vccio2-supply = <&vcc_io>;
-	vccio3-supply = <&vcc_io>;
-	vccio4-supply = <&vcc_1v8>;
-	vccio5-supply = <&vcc_io>;
+&i2s_8ch_2 {
 	status = "okay";
+	#sound-dai-cells = <0>;
 };
 
 &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_down>;
-		};
-
-		host_wake_bt: host-wake-bt {
-			rockchip,pins = <4 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+	leds {
+		green_led_gio: green-led-gpio {
+			rockchip,pins = <0 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
 
-	gmac {
-		mac_rst: mac-rst {
-			rockchip,pins = <0 RK_PA7 RK_FUNC_GPIO &pcfg_pull_none>;
+	usb {
+		otg_vbus_drv: otg-vbus-drv {
+			rockchip,pins = <0 RK_PC5 RK_FUNC_GPIO &pcfg_pull_none>;
 		};
 	};
 
-	leds {
-		pwr_led: pwr-led {
-			rockchip,pins = <0 RK_PB6 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>;
 		};
 	};
 
 	wifi {
-		wifi_reg_on: wifi-reg-on {
-			rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
+		wifi_host_wake: wifi-host-wake {
+			rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_down>;
 		};
 
-		wifi_wake_host: wifi-wake-host {
-			rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_down>;
+	};
+	antenna {
+		ant_1: ant-1 {
+			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_down>;
 		};
 	};
 };
 
 &pwm0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&pwm0_pin_pull_down>;
 	status = "okay";
+	pinctrl-0 = <&pwm0_pin_pull_down>;
 };
 
 &saradc {
@@ -203,91 +283,65 @@ &saradc {
 	status = "okay";
 };
 
-&sdio {
-	#address-cells = <1>;
-	#size-cells = <0>;
-	cap-sd-highspeed;
-	cap-sdio-irq;
-	keep-power-in-suspend;
-	max-frequency = <50000000>;
-	mmc-pwrseq = <&sdio_pwrseq>;
-	no-mmc;
-	no-sd;
-	non-removable;
-	vmmc-supply = <&vcc_io>;
-	vqmmc-supply = <&vcc_1v8>;
+&tsadc {
+	rockchip,hw-tshut-mode = <0>;		/* 0:CRU */
+	rockchip,hw-tshut-polarity = <1>;	/* 1:HIGH */
 	status = "okay";
-
-	brcmf: wifi@1 {
-		compatible = "brcm,bcm43430a1-fmac", "brcm,bcm4329-fmac";
-		reg = <1>;
-		interrupt-parent = <&gpio0>;
-		interrupts = <RK_PA0 IRQ_TYPE_LEVEL_HIGH>;
-		interrupt-names = "host-wake";
-		pinctrl-names = "default";
-		pinctrl-0 = <&wifi_wake_host>;
-	};
 };
 
-&sdmmc {
-	cap-mmc-highspeed;
-	cap-sd-highspeed;
-	disable-wp;
-	vmmc-supply = <&vcc_io>;
+&i2c1 {
 	status = "okay";
 };
 
-&u2phy {
-	status = "okay";
+&spi2 {
+//	status = "okay";  //conflicts with UART2
+	max-freq = <10000000>;
 };
 
-&u2phy_host {
+&uart0 {
 	status = "okay";
 };
 
-&u2phy_otg {
+&uart2 {
 	status = "okay";
 };
 
-&uart0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&uart0_xfer>;
+&uart4 {
 	status = "okay";
+
+	bluetooth {
+		compatible = "realtek,rtl8723bs-bt";
+		device-wake-gpios = <&gpio4 RK_PB3 GPIO_ACTIVE_HIGH>;
+		host-wake-gpios = <&gpio4 RK_PB4 GPIO_ACTIVE_HIGH>;
+	};
 };
 
-&uart4 {
-	uart-has-rtscts;
+&u2phy {
 	status = "okay";
 
-	bluetooth {
-		compatible = "brcm,bcm43430a1-bt";
-		clocks = <&cru SCLK_RTC32K>;
-		clock-names = "lpo";
-		interrupt-parent = <&gpio4>;
-		interrupts = <RK_PB4 IRQ_TYPE_LEVEL_HIGH>;
-		interrupt-names = "host-wakeup";
-		device-wakeup-gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_HIGH>;
-		shutdown-gpios = <&gpio4 RK_PB3 GPIO_ACTIVE_HIGH>;
-		pinctrl-names = "default";
-		pinctrl-0 = <&bt_reg_on &bt_wake_host &host_wake_bt>;
-		vbat-supply = <&vcc_io>;
-		vddio-supply = <&vcc_1v8>;
+	u2phy_host: host-port {
+		phy-supply = <&vcc5v0_otg>;
+		status = "okay";
+	};
+
+	u2phy_otg: otg-port {
+		status = "okay";
 	};
 };
 
-&usb_host_ehci {
+&usb20_otg {
 	status = "okay";
 };
 
-&usb_host_ohci {
+&usb_host_ehci {
 	status = "okay";
 };
 
-&usb20_otg {
-	dr_mode = "peripheral";
+&usb_host_ohci{
 	status = "okay";
 };
 
 &wdt {
 	status = "okay";
 };
+
-- 
Armbian

