[PATCH v2 21/21] sunxi: Add support for OrangePi Zero2

[Jernej Skrabec <jernej.skrabec@siol.net>]

OrangePi Zero2 is SBC based on Allwinner H616 with 1 GiB of RAM, SD card
support, gigabit ethernet, micro HDMI, WIFI, Bluetooth and 1 USB 2.0
port. It also has two GPIO headers which allows further peripherals to
be used.

Device Tree file is taken from initial OrangePi Zero2 Linux submission
and it's not yet merged.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
 arch/arm/dts/Makefile                       |   2 +
 arch/arm/dts/sun50i-h616-orangepi-zero2.dts | 240 ++++++++++++++++++++
 board/sunxi/MAINTAINERS                     |   5 +
 configs/orangepi_zero2_defconfig            |  15 ++
 4 files changed, 262 insertions(+)
 create mode 100644 arch/arm/dts/sun50i-h616-orangepi-zero2.dts
 create mode 100644 configs/orangepi_zero2_defconfig

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 1a62e4c0708a..ed6150dca38d 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -609,6 +609,8 @@ dtb-$(CONFIG_MACH_SUN50I_H6) += \
 	sun50i-h6-orangepi-lite2.dtb \
 	sun50i-h6-orangepi-one-plus.dtb \
 	sun50i-h6-pine-h64.dtb
+dtb-$(CONFIG_MACH_SUN50I_H616) += \
+	sun50i-h616-orangepi-zero2.dtb
 dtb-$(CONFIG_MACH_SUN50I) += \
 	sun50i-a64-amarula-relic.dtb \
 	sun50i-a64-bananapi-m64.dtb \
diff --git a/arch/arm/dts/sun50i-h616-orangepi-zero2.dts b/arch/arm/dts/sun50i-h616-orangepi-zero2.dts
new file mode 100644
index 000000000000..2afc036059b4
--- /dev/null
+++ b/arch/arm/dts/sun50i-h616-orangepi-zero2.dts
@@ -0,0 +1,240 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/*
+ * Copyright (C) 2020 Arm Ltd.
+ */
+
+/dts-v1/;
+
+#include "sun50i-h616.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	model = "OrangePi Zero2";
+	compatible = "xunlong,orangepi-zero2", "allwinner,sun50i-h616";
+
+	aliases {
+		ethernet0 = &emac0;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		power {
+			function = LED_FUNCTION_POWER;
+			color = <LED_COLOR_ID_RED>;
+			gpios = <&pio 2 12 GPIO_ACTIVE_HIGH>; /* PC12 */
+			default-state = "on";
+		};
+
+		status {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&pio 2 13 GPIO_ACTIVE_HIGH>; /* PC13 */
+		};
+	};
+
+	reg_vcc5v: vcc5v {
+		/* board wide 5V supply directly from the USB-C socket */
+		compatible = "regulator-fixed";
+		regulator-name = "vcc-5v";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
+	reg_usb1_vbus: usb1-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb1-vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&reg_vcc5v>;
+		enable-active-high;
+		gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>; /* PC16 */
+		status = "okay";
+	};
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+/* USB 2 & 3 are on headers only. */
+
+&emac0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ext_rgmii_pins>;
+	phy-mode = "rgmii";
+	phy-handle = <&ext_rgmii_phy>;
+	phy-supply = <&reg_dcdce>;
+	allwinner,rx-delay-ps = <3100>;
+	allwinner,tx-delay-ps = <700>;
+	status = "okay";
+};
+
+&mdio0 {
+	ext_rgmii_phy: ethernet-phy at 1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <1>;
+	};
+};
+
+&mmc0 {
+	vmmc-supply = <&reg_dcdce>;
+	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;	/* PF6 */
+	bus-width = <4>;
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&r_i2c {
+	status = "okay";
+
+	axp305: pmic at 36 {
+		compatible = "x-powers,axp305", "x-powers,axp805",
+			     "x-powers,axp806";
+		reg = <0x36>;
+
+		x-powers,self-working-mode;
+		vina-supply = <&reg_vcc5v>;
+		vinb-supply = <&reg_vcc5v>;
+		vinc-supply = <&reg_vcc5v>;
+		vind-supply = <&reg_vcc5v>;
+		vine-supply = <&reg_vcc5v>;
+		aldoin-supply = <&reg_vcc5v>;
+		bldoin-supply = <&reg_vcc5v>;
+		cldoin-supply = <&reg_vcc5v>;
+
+		regulators {
+			reg_aldo1: aldo1 {
+				regulator-always-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc-sys";
+			};
+
+			reg_aldo2: aldo2 {	/* 3.3V on headers */
+				regulator-always-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc3v3-ext";
+			};
+
+			reg_aldo3: aldo3 {	/* 3.3V on headers */
+				regulator-always-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc3v3-ext2";
+			};
+
+			reg_bldo1: bldo1 {
+				regulator-always-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc1v8";
+			};
+
+			bldo2 {
+				/* unused */
+			};
+
+			bldo3 {
+				/* unused */
+			};
+
+			bldo4 {
+				/* unused */
+			};
+
+			cldo1 {
+				/* reserved */
+			};
+
+			cldo2 {
+				/* unused */
+			};
+
+			cldo3 {
+				/* unused */
+			};
+
+			reg_dcdca: dcdca {
+				regulator-always-on;
+				regulator-min-microvolt = <810000>;
+				regulator-max-microvolt = <1080000>;
+				regulator-name = "vdd-cpu";
+			};
+
+			reg_dcdcc: dcdcc {
+				regulator-always-on;
+				regulator-min-microvolt = <810000>;
+				regulator-max-microvolt = <1080000>;
+				regulator-name = "vdd-gpu-sys";
+			};
+
+			reg_dcdcd: dcdcd {
+				regulator-always-on;
+				regulator-min-microvolt = <1500000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-name = "vdd-dram";
+			};
+
+			reg_dcdce: dcdce {
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc-eth-mmc";
+			};
+
+			sw {
+				/* unused */
+			};
+		};
+	};
+};
+
+&spi0  {
+	status = "okay";
+
+	flash at 0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+	};
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_ph_pins>;
+	status = "okay";
+};
+
+&usbotg {
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usbphy {
+	usb1_vbus-supply = <&reg_usb1_vbus>;
+	status = "okay";
+};
diff --git a/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 735801ae1d80..1ec6414eca51 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -420,6 +420,11 @@ M:	Diego Rondini <diego.rondini@kynetics.com>
 S:	Maintained
 F:	configs/orangepi_zero_plus2_h3_defconfig
 
+ORANGEPI ZERO 2 BOARD
+M:	Jernej Skrabec <jernej.skrabec@siol.net>
+S:	Maintained
+F:	configs/orangepi_zero2_defconfig
+
 ORANGEPI PC 2 BOARD
 M:	Andre Przywara <andre.przywara@arm.com>
 S:	Maintained
diff --git a/configs/orangepi_zero2_defconfig b/configs/orangepi_zero2_defconfig
new file mode 100644
index 000000000000..5af964bf100a
--- /dev/null
+++ b/configs/orangepi_zero2_defconfig
@@ -0,0 +1,15 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SPL=y
+CONFIG_DRAM_SUN50I_H616_WRITE_LEVELING=y
+CONFIG_DRAM_SUN50I_H616_READ_CALIBRATION=y
+CONFIG_DRAM_SUN50I_H616_READ_TRAINING=y
+CONFIG_DRAM_SUN50I_H616_WRITE_TRAINING=y
+CONFIG_MACH_SUN50I_H616=y
+CONFIG_MMC0_CD_PIN="PF6"
+CONFIG_R_I2C_ENABLE=y
+CONFIG_DEFAULT_DEVICE_TREE="sun50i-h616-orangepi-zero2"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL_I2C_SUPPORT=y
+CONFIG_PHY_REALTEK=y
+CONFIG_SUN8I_EMAC=y
-- 
2.30.0