[PATCH v2] ARM: dts: sun8i: h2+: add support for Banana Pi P2 Zero board

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Banana Pi P2 Zero is H2+-based board by Sinovoip internally
similar to Banana Pi M2 Zero.

It features:
- Allwinner H2+, Quad-core Cortex-A7
- 512MB DDR3 SDRAM
- 8G eMMC flash
- MicroSD card slot
- 100M LAN
- WiFi (AP6212) & Bluetooth onboard (SDIO + UART)
- Micro USB OTG port
- Micro USB connector (power only)
- Mini HDMI
- 40 PIN GPIO includes UART, SPI, I2C, IO etc.
- GPIO-connected key and LED
- CSI connector
- IEEE 802.3af PoE standard PoE module support (optional)

This adds support for v1.1 revision. There was also v1.0 available
which has different SDcard CD polarity and Ethernet port LEDs
disconnected in layout.

Signed-off-by: Pavel Löbl <pavel@xxxxxxxx>
---
 .../devicetree/bindings/arm/sunxi.yaml        |   5 +
 arch/arm/boot/dts/Makefile                    |   1 +
 .../sun8i-h2-plus-bananapi-p2-zero-v1.1.dts   | 197 ++++++++++++++++++
 3 files changed, 203 insertions(+)
 create mode 100644 arch/arm/boot/dts/sun8i-h2-plus-bananapi-p2-zero-v1.1.dts

diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
index 6db32fbf813f..3accfa23cbad 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
@@ -136,6 +136,11 @@ properties:
           - const: sinovoip,bananapi-m64
           - const: allwinner,sun50i-a64
 
+      - description: Banana Pi P2 Zero
+        items:
+          - const: sinovoip,bpi-p2-zero-v1.1
+          - const: allwinner,sun8i-h2-plus
+
       - description: BananaPro
         items:
           - const: lemaker,bananapro
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 3d1ea0b25168..26c1fd13375a 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1190,6 +1190,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-a83t-cubietruck-plus.dtb \
 	sun8i-a83t-tbs-a711.dtb \
 	sun8i-h2-plus-bananapi-m2-zero.dtb \
+	sun8i-h2-plus-bananapi-p2-zero-v1.1.dtb \
 	sun8i-h2-plus-libretech-all-h3-cc.dtb \
 	sun8i-h2-plus-orangepi-r1.dtb \
 	sun8i-h2-plus-orangepi-zero.dtb \
diff --git a/arch/arm/boot/dts/sun8i-h2-plus-bananapi-p2-zero-v1.1.dts b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-p2-zero-v1.1.dts
new file mode 100644
index 000000000000..7297183af3af
--- /dev/null
+++ b/arch/arm/boot/dts/sun8i-h2-plus-bananapi-p2-zero-v1.1.dts
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2021 Pavel Löbl <pavel@xxxxxxxx>
+ *
+ * Based on sun8i-h2-plus-bananapi-m2-zero.dts, which is:
+ *   Copyright (C) 2017 Icenowy Zheng <icenowy@xxxxxxx>
+ */
+
+/dts-v1/;
+#include "sun8i-h3.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	model = "Banana Pi BPI-P2-Zero v1.1";
+	compatible = "sinovoip,bpi-p2-zero-v1.1", "allwinner,sun8i-h2-plus";
+
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart1;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led {
+			function = LED_FUNCTION_POWER;
+			color = <LED_COLOR_ID_RED>;
+			gpios = <&r_pio 0 10 GPIO_ACTIVE_LOW>; /* PL10 */
+			default-state = "on";
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		power {
+			label = "power";
+			linux,code = <KEY_POWER>;
+			gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;  /* PL3 */
+			wakeup-source;
+		};
+	};
+
+	reg_vcc_5v: reg-vcc-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "usb1-vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-boot-on;
+	};
+
+	reg_vcc_1v2: reg-vcc-1v2 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc-1v2";
+		regulator-type = "voltage";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-boot-on;
+		vin-supply = <&reg_vcc_5v>;
+	};
+
+	reg_vcc_3v3: reg-vcc-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc-3v3";
+		regulator-type = "voltage";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		vin-supply = <&reg_vcc_5v>;
+	};
+
+	reg_vdd_cpux: vdd-cpux-regulator {
+		compatible = "regulator-gpio";
+		regulator-name = "vdd-cpux";
+		regulator-type = "voltage";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <1100000>;
+		regulator-max-microvolt = <1300000>;
+		regulator-ramp-delay = <50>; /* 4ms */
+
+		gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
+		enable-active-high;
+		gpios-states = <0x1>;
+		states = <1100000 0>, <1300000 1>;
+	};
+
+	wifi_pwrseq: wifi-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&reg_vdd_cpux>;
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&mmc0 {
+	vmmc-supply = <&reg_vcc_3v3>;
+	bus-width = <4>;
+	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
+	cd-inverted;
+	status = "okay";
+};
+
+&mmc1 {
+	vmmc-supply = <&reg_vcc_3v3>;
+	vqmmc-supply = <&reg_vcc_3v3>;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+		interrupt-parent = <&pio>;
+		interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 / EINT10 */
+		interrupt-names = "host-wake";
+		clocks = <&rtc 1>;
+		clock-names = "ext_clock";
+	};
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_8bit_pins>;
+	vmmc-supply = <&reg_vcc_3v3>;
+	vqmmc-supply = <&reg_vcc_3v3>;
+	bus-width = <8>;
+	non-removable;
+	cap-mmc-hw-reset;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pa_pins>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm4345c5";
+		vbat-supply = <&reg_vcc_3v3>;
+		vddio-supply = <&reg_vcc_3v3>;
+		device-wakeup-gpios = <&pio 6 13 GPIO_ACTIVE_HIGH>; /* PG13 */
+		host-wakeup-gpios = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
+		shutdown-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
+		clocks = <&rtc 1>;
+		clock-names = "ext_clock";
+	};
+};
+
+&emac {
+	phy-handle = <&int_mii_phy>;
+	phy-mode = "mii";
+	phy-supply = <&reg_vcc_1v2>;
+	allwinner,leds-active-low;
+	status = "okay";
+};
+
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usbphy {
+	usb0_id_det-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+	/*
+	 * There're two micro-USB connectors, one is power-only and another is
+	 * OTG. The Vbus of these two connectors are connected together, so
+	 * the external USB device will be powered just by the power input
+	 * from the power-only USB port or optional POE module.
+	 */
+	status = "okay";
+};
-- 
2.30.1
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