add zero

arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi

@@ -359,11 +359,10 @@
 				drive-strength = <40>;
 			};
 
-			rmii_pins: rmii-pins {
-				pins = "PA0", "PA1", "PA2", "PA3", "PA4",
-				       "PA5", "PA6", "PA7", "PA8", "PA9";
-				function = "emac1";
-				drive-strength = <40>;
+			/omit-if-no-ref/
+			i2c0_pi_pins: i2c0-pi-pins {
+				pins = "PI5", "PI6";
+				function = "i2c0";
 			};
 
 			/omit-if-no-ref/
@@ -491,7 +490,7 @@
 			};
 
 			mmc2_pins: mmc2-pins {
-				pins = "PC1", "PC5", "PC6",
+				pins = "PC0", "PC1", "PC5", "PC6",
 				       "PC8", "PC9", "PC10", "PC11",
 				       "PC13", "PC14", "PC15", "PC16";
 				function = "mmc2";
@@ -499,11 +498,23 @@
 				bias-pull-up;
 			};
 
-			mmc2_ds_pin: mmc2-ds-pin {
-				pins = "PC0";
-				function = "mmc2";
-				drive-strength = <30>;
-				bias-pull-up;
+			rmii_pins: rmii-pins {
+				pins = "PA0", "PA1", "PA2", "PA3", "PA4",
+				       "PA5", "PA6", "PA7", "PA8", "PA9";
+				function = "emac1";
+				drive-strength = <40>;
+			};
+
+			/omit-if-no-ref/
+			spi0_pins: spi0-pins {
+				pins = "PC0", "PC2", "PC4";
+				function = "spi0";
+			};
+
+			/omit-if-no-ref/
+			spi0_cs0_pin: spi0-cs0-pin {
+				pins = "PC3";
+				function = "spi0";
 			};
 
 			/omit-if-no-ref/
@@ -813,6 +824,21 @@
 			status = "disabled";
 		};
 
+		i2c0: i2c@5002000 {
+			compatible = "allwinner,sun50i-h616-i2c",
+				     "allwinner,sun8i-v536-i2c",
+				     "allwinner,sun6i-a31-i2c";
+			reg = <0x05002000 0x400>;
+			interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_I2C0>;
+			resets = <&ccu RST_BUS_I2C0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c0_pi_pins>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
 		i2c1: i2c@5002400 {
 			compatible = "allwinner,sun50i-h616-i2c",
 				     "allwinner,sun8i-v536-i2c",
@@ -873,6 +899,23 @@
 			#size-cells = <0>;
 		};
 
+		spi0: spi@5010000 {
+			compatible = "allwinner,sun50i-h616-spi",
+				     "allwinner,sun8i-h3-spi";
+			reg = <0x05010000 0x1000>;
+			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>;
+			clock-names = "ahb", "mod";
+			resets = <&ccu RST_BUS_SPI0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi0_pins>;
+			dmas = <&dma 22>, <&dma 22>;
+			dma-names = "rx", "tx";
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
 		spi1: spi@5011000 {
 			compatible = "allwinner,sun50i-h616-spi",
 				     "allwinner,sun8i-h3-spi";
@@ -1496,4 +1539,4 @@
 			opp-microvolt = <1080000>;
 		};
 	};
-};
+};

arch/arm64/boot/dts/allwinner/sun50i-h618-bananapi-m4berry.dts

@@ -14,7 +14,7 @@
 
 / {
 	model = "BananaPi M4 Berry";
-	compatible = "BiPai,bananapi-m4 berry", "allwinner,sun50i-h616";
+	compatible = "BiPai,bananapi-m4berry", "allwinner,sun50i-h616";
 
 	aliases {
 		ethernet0 = &emac0;
@@ -40,10 +40,10 @@
 	leds: leds {
 		compatible = "gpio-leds";
 
-		led-red {
+		led-greed {
 			label = "red_led";
 			gpios = <&pio 2 12 GPIO_ACTIVE_HIGH>; /* PC12 */
-			linux,default-trigger = "none";
+			linux,default-trigger = "heartbeat";
 		};
 	};
 
@@ -110,7 +110,7 @@
 
 &mmc2 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&mmc2_pins>, <&mmc2_ds_pin>;
+
 	vmmc-supply = <&reg_dldo1>;
 	bus-width = <8>;
 	non-removable;
@@ -309,4 +309,4 @@
 &cpu0 {
 	cpu-supply = <&reg_dcdc2>;
 	status = "okay";
-};
+};

arch/arm64/boot/dts/allwinner/sun50i-h618-bananapi-m4zero.dts

@@ -0,0 +1,190 @@
+// 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 = "Banana Pi M4 Zero";
+	compatible = "bananapi,bananapi-m4zero", "allwinner,sun50i-h618";
+
+	aliases {
+		ethernet0 = &emac0;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&pio 2 12 GPIO_ACTIVE_LOW>; /* PC12 */
+			default-state = "on";
+		};
+
+	};
+
+	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>;
+		regulator-always-on;
+
+		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>;
+	allwinner,rx-delay-ps = <3100>;
+	allwinner,tx-delay-ps = <700>;
+	status = "okay";
+};
+
+&mdio0 {
+	ext_rgmii_phy: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <1>;
+	};
+};
+
+&mmc0 {
+
+	cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;	/* PF6 */
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+};
+
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&r_i2c {
+	status = "okay";
+
+	axp313a: pmic@36 {
+		compatible = "x-powers,axp313a";
+		status = "okay";
+		reg = <0x36>;
+		wakeup-source;
+
+		standby_param: standby_param {
+			vcc-dram = <0x4>;
+		};
+
+		regulators{
+			reg_dcdc1: dcdc1 {
+				regulator-name = "axp313a-dcdc1";
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-step-delay-us = <25>;
+				regulator-final-delay-us = <50>;
+				regulator-always-on;
+			};
+
+			reg_dcdc2: dcdc2 {
+				regulator-name = "axp313a-dcdc2";
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <1540000>;
+				regulator-step-delay-us = <25>;
+				regulator-final-delay-us = <50>;
+				regulator-ramp-delay = <200>;
+				regulator-always-on;
+			};
+
+			reg_dcdc3: dcdc3 {
+				regulator-name = "axp313a-dcdc3";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-step-delay-us = <25>;
+				regulator-final-delay-us = <50>;
+				regulator-always-on;
+			};
+
+			reg_aldo1: aldo1 {
+				regulator-name = "axp313a-aldo1";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-step-delay-us = <25>;
+				regulator-final-delay-us = <50>;
+				regulator-always-on;
+			};
+
+			reg_dldo1: dldo1 {
+				regulator-name = "axp313a-dldo1";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-step-delay-us = <25>;
+				regulator-final-delay-us = <50>;
+				regulator-always-on;
+			};
+		};
+	};
+};
+
+&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";
+};