Date:   Fri,  2 Dec 2022 16:16:47 +0800
From:   Icenowy Zheng <uwu@...nowy.me>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Andre Przywara <andre.przywara@....com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, Icenowy Zheng <uwu@...nowy.me>
Subject: [PATCH v2 6/6] arm64: dts: allwinner: h6: add Rongpin RP-H6C SoM and RP-H6B board

Rongpin RP-H6C is an Allwinner H6 SoM by Rongpin, with Allwinner H6 SoC,
AXP805 PMIC, LPDDR3 memory and eMMC storage on it.

RP-H6B is their official evaluation board of RP-H6C, with an onboard
GL850G USB hub, Ampak AP6212 Wi-Fi module and some circuits about LVDS
display. It also exports the OTG USB port, the USB 3.0 port, PCIe bus
(as mPCIe slot), internal Ethernet PHY, analog audio/video and HDMI
port.

Add a DTSI file for the SoM and a DTS for the full board.

Signed-off-by: Icenowy Zheng <uwu@...nowy.me>
---
Changes in v2:
- Name all regulator nodes regulator-xxx.
- Fixed underscores in node names.

 arch/arm64/boot/dts/allwinner/Makefile        |   1 +
 .../boot/dts/allwinner/sun50i-h6-rp-h6b.dts   | 239 ++++++++++++++++++
 .../boot/dts/allwinner/sun50i-h6-rp-h6c.dtsi  | 180 +++++++++++++
 3 files changed, 420 insertions(+)
 create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h6-rp-h6b.dts
 create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h6-rp-h6c.dtsi

diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index 6a96494a2e0a..e289fedcac29 100644
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -36,6 +36,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-orangepi-lite2.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-orangepi-one-plus.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64-model-b.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-rp-h6b.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-tanix-tx6-mini.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-rp-h6b.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-rp-h6b.dts
new file mode 100644
index 000000000000..d9994e9beb81
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-rp-h6b.dts
@@ -0,0 +1,239 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/*
+ * Copyright (C) 2022 Icenowy Zheng <icenowy@...c.io>
+ */
+/dts-v1/;
+
+#include "sun50i-h6-rp-h6c.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Rongpin RP-H6B baseboard";
+	compatible = "rongpin,rp-h6b", "rongpin,rp-h6c",
+		     "allwinner,sun50i-h6";
+
+	aliases {
+		ethernet0 = &emac;
+		serial0 = &uart0;
+		/*
+		 * Prioritize the external RTC because it's powered
+		 * by a cell battery.
+		 */
+		rtc0 = &hym8563;
+		rtc1 = &rtc;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	hdmi_connector: connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con_in: endpoint {
+				remote-endpoint = <&hdmi_out_con>;
+			};
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led {
+			label = "rongpin:red:link";
+			gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>; /* PL3 */
+			/*
+			 * On the schematics this LED is marked as "lit when
+			 * powering on and blinking when running".
+			 */
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	/*
+	 * The VDD_5V power rail is connected to the internal regulator
+	 * of GL850G, to power up the 3.3V core of it.
+	 */
+	reg_v33_hub: regulator-v33-hub {
+		compatible = "regulator-fixed";
+		regulator-name = "v33-hub";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&reg_vdd_5v>;
+	};
+
+	/*
+	 * This board inputs 5V to AP6212 via a SS34 diode. Use this
+	 * regulator as the model of the internal regulator of AP6212.
+	 */
+	reg_vcc3v3_ap6212: regulator-vcc3v3-ap6212 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3-ap6212";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&reg_ps>;
+	};
+
+	reg_vdd_5v: regulator-vdd-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd-5v";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		startup-delay-us = <100000>;
+		gpio = <&r_pio 0 5 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		vin-supply = <&reg_ps>;
+	};
+
+	/* For mPCIe slot WWAN modules / PCIe cards */
+	reg_vdd_3g: regulator-vdd-3g {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd-3g";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <100000>;
+		gpio = <&r_pio 0 7 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		vin-supply = <&reg_ps>;
+		/*
+		 * As a hack for lacking of control of a hub downstream
+		 * port's Vbus.
+		 */
+		regulator-always-on;
+	};
+
+	wifi_pwrseq: wifi-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&r_pio 1 3 GPIO_ACTIVE_LOW>; /* PM3 */
+		post-power-on-delay-ms = <200>;
+	};
+};
+
+&de {
+	status = "okay";
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ehci3 {
+	status = "okay";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	hub@1 {
+		/* Genesys Logic GL850G usb hub */
+		compatible = "usb5e3,608";
+		reg = <1>;
+		vdd-supply = <&reg_v33_hub>;
+		reset-gpios = <&pio 7 2 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&hdmi {
+	status = "okay";
+};
+
+&hdmi_out {
+	hdmi_out_con: endpoint {
+		remote-endpoint = <&hdmi_con_in>;
+	};
+};
+
+&i2c0 {
+	status = "okay";
+
+	hym8563: rtc@51 {
+		compatible = "haoyu,hym8563";
+		reg = <0x51>;
+		#clock-cells = <0>;
+	};
+};
+
+&mmc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_pins>;
+	vmmc-supply = <&reg_cldo1>;
+	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+	vmmc-supply = <&reg_vcc3v3_ap6212>;
+	vqmmc-supply = <&reg_bldo3>;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	non-removable;
+	bus-width = <4>;
+	status = "okay";
+
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+		interrupt-parent = <&r_pio>;
+		interrupts = <1 0 IRQ_TYPE_LEVEL_LOW>; /* PM0 */
+		interrupt-names = "host-wake";
+	};
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+/* Converted from 12v with a fixed DC-DC on the baseboard */
+&reg_ps {
+	regulator-min-microvolt = <5000000>;
+	regulator-max-microvolt = <5000000>;
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_ph_pins>;
+	status = "okay";
+};
+
+/* Bluetooth */
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		max-speed = <1500000>;
+		clocks = <&rtc CLK_OSC32K_FANOUT>;
+		clock-names = "lpo";
+		vbat-supply = <&reg_ps>;
+		vddio-supply = <&reg_bldo3>;
+		device-wakeup-gpios = <&r_pio 1 2 GPIO_ACTIVE_HIGH>; /* PM2 */
+		shutdown-gpios = <&r_pio 1 4 GPIO_ACTIVE_HIGH>; /* PM4 */
+		interrupt-parent = <&r_pio>;
+		interrupts = <1 1 IRQ_TYPE_EDGE_FALLING>; /* PM1 */
+		interrupt-names = "host-wakeup";
+	};
+};
+
+&uart1_pins {
+	bias-pull-up;
+};
+
+&uart1_rts_cts_pins {
+	bias-pull-up;
+};
+
+&usb2otg {
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usb2phy {
+	usb0_vbus-supply = <&reg_vdd_5v>;
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-rp-h6c.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-rp-h6c.dtsi
new file mode 100644
index 000000000000..637c194016c4
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-rp-h6c.dtsi
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/*
+ * Copyright (C) 2019-2022 Icenowy Zheng <icenowy@...c.io>
+ */
+
+#include "sun50i-h6.dtsi"
+#include "sun50i-h6-cpu-opp.dtsi"
+#include "sun50i-h6-gpu-opp.dtsi"
+
+/ {
+	ext_osc32k: ext-osc32k-clk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+		clock-output-names = "ext_osc32k";
+	};
+
+	/* Marked 3.4v~5.5v on SoM schematics */
+	reg_ps: regulator-ps {
+		compatible = "regulator-fixed";
+		regulator-name = "ps";
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&reg_dcdca>;
+};
+
+&gpu {
+	mali-supply = <&reg_dcdcc>;
+	status = "okay";
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+	vmmc-supply = <&reg_cldo1>;
+	vqmmc-supply = <&reg_bldo2>;
+	non-removable;
+	cap-mmc-hw-reset;
+	bus-width = <8>;
+	status = "okay";
+};
+
+&pio {
+	vcc-pc-supply = <&reg_bldo2>;
+	vcc-pd-supply = <&reg_aldo2>;
+	vcc-pg-supply = <&reg_bldo3>;
+};
+
+&r_pio {
+	/*
+	 * FIXME: We can't add that supply for now since it would
+	 * create a circular dependency between pinctrl, the regulator
+	 * and the RSB Bus.
+	 *
+	 * vcc-pl-supply = <&reg_aldo1>;
+	 */
+	vcc-pm-supply = <&reg_bldo3>;
+};
+
+&r_rsb {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	axp805: pmic@745 {
+		compatible = "x-powers,axp805", "x-powers,axp806";
+		reg = <0x745>;
+		interrupt-parent = <&r_intc>;
+		interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		x-powers,self-working-mode;
+		vina-supply = <&reg_ps>;
+		vinb-supply = <&reg_ps>;
+		vinc-supply = <&reg_ps>;
+		vind-supply = <&reg_ps>;
+		vine-supply = <&reg_ps>;
+		aldoin-supply = <&reg_ps>;
+		bldoin-supply = <&reg_ps>;
+		cldoin-supply = <&reg_ps>;
+
+		regulators {
+			reg_aldo1: aldo1 {
+				regulator-always-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc-pl";
+			};
+
+			reg_aldo2: aldo2 {
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc-ac200";
+				regulator-enable-ramp-delay = <100000>;
+			};
+
+			aldo3 {
+				/* unused */
+			};
+
+			reg_bldo1: bldo1 {
+				regulator-always-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc-bias-pll";
+			};
+
+			reg_bldo2: bldo2 {
+				regulator-always-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc-efuse-pcie-hdmi-io";
+			};
+
+			reg_bldo3: bldo3 {
+				regulator-always-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc-dcxoio";
+			};
+
+			bldo4 {
+				/* unused */
+			};
+
+			reg_cldo1: cldo1 {
+				/* This regulator is connected with ALDO3 */
+				regulator-always-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc-3v3-2";
+			};
+
+			cldo2 {
+				/* unused */
+			};
+
+			cldo3 {
+				/* unused */
+			};
+
+			reg_dcdca: dcdca {
+				regulator-always-on;
+				regulator-min-microvolt = <810000>;
+				regulator-max-microvolt = <1160000>;
+				regulator-ramp-delay = <2500>;
+				regulator-name = "vdd-cpu";
+			};
+
+			reg_dcdcc: dcdcc {
+				regulator-min-microvolt = <810000>;
+				regulator-max-microvolt = <1080000>;
+				regulator-name = "vdd-gpu";
+			};
+
+			reg_dcdcd: dcdcd {
+				regulator-always-on;
+				regulator-min-microvolt = <960000>;
+				regulator-max-microvolt = <960000>;
+				regulator-name = "vdd-sys";
+			};
+
+			reg_dcdce: dcdce {
+				regulator-always-on;
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-name = "vcc-dram";
+			};
+
+			sw {
+				/* unused */
+			};
+		};
+	};
+};
+
+&rtc {
+	clocks = <&ext_osc32k>;
+};
-- 
2.38.1

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