[PATCH] sunxi: h3: Add initial ZeroPi support

[Yu-Tung Chang]

ZeroPi is a new board of high performance with low cost
designed by FriendlyElec., using the Allwinner H3 SOC.

ZeroPi features
- Allwinner H3, Quad-core Cortex-A7 at 1.2GHz
- 256MB/512MB DDR3 RAM
- microsd slot
- 10/100/1000Mbps Ethernet
- Debug Serial Port
- DC 5V/2A power-supply

Signed-off-by: Yu-Tung Chang <mtwget at gmail.com>
---
 arch/arm/dts/Makefile            |  3 +-
 arch/arm/dts/sun8i-h3-zeropi.dts | 48 ++++++++++++++++++++++++++++++++
 board/sunxi/MAINTAINERS          |  6 ++++
 configs/zeropi_defconfig         | 13 +++++++++
 4 files changed, 69 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/dts/sun8i-h3-zeropi.dts
 create mode 100644 configs/zeropi_defconfig

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 096068261d..7c8e253350 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -607,7 +607,8 @@ dtb-$(CONFIG_MACH_SUN8I_H3) += \
 	sun8i-h3-orangepi-plus.dtb \
 	sun8i-h3-orangepi-plus2e.dtb \
 	sun8i-h3-orangepi-zero-plus2.dtb \
-	sun8i-h3-rervision-dvk.dtb
+	sun8i-h3-rervision-dvk.dtb \
+	sun8i-h3-zeropi.dtb
 dtb-$(CONFIG_MACH_SUN8I_R40) += \
 	sun8i-r40-bananapi-m2-ultra.dtb \
 	sun8i-v40-bananapi-m2-berry.dtb
diff --git a/arch/arm/dts/sun8i-h3-zeropi.dts b/arch/arm/dts/sun8i-h3-zeropi.dts
new file mode 100644
index 0000000000..e36381f11b
--- /dev/null
+++ b/arch/arm/dts/sun8i-h3-zeropi.dts
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2021 Yu-Tung Chang <mtwget at gmail.com>
+ */
+
+#include "sun8i-h3-nanopi.dtsi"
+
+/ {
+	model = "FriendlyARM ZeroPi";
+	compatible = "friendlyarm,zeropi", "allwinner,sun8i-h3";
+
+	aliases {
+		ethernet0 = &emac;
+	};
+
+	reg_gmac_3v3: gmac-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "gmac-3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		startup-delay-us = <100000>;
+		enable-active-high;
+		gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
+	};
+};
+
+&external_mdio {
+	ext_rgmii_phy: ethernet-phy at 7 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <7>;
+	};
+};
+
+&emac {
+	pinctrl-names = "default";
+	pinctrl-0 = <&emac_rgmii_pins>;
+	phy-supply = <&reg_gmac_3v3>;
+	phy-handle = <&ext_rgmii_phy>;
+	phy-mode = "rgmii-id";
+
+	allwinner,leds-active-low;
+	status = "okay";
+};
+
+&usb_otg {
+	status = "okay";
+	dr_mode = "host";
+};
diff --git a/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 76eba2ad20..4fc26077b2 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -529,3 +529,9 @@ YONES TOPTECH BS1078 V2 BOARD
 M:	Peter Korsgaard <peter at korsgaard.com>
 S:	Maintained
 F:	configs/Yones_Toptech_BS1078_V2_defconfig
+
+ZEROPI BOARD
+M:	Yu-Tung Chang <mtwget at gmail.com>
+S:	Maintained
+F:	configs/zeropi_defconfig
+F:	arch/arm/dts/sun8i-h3-zeropi.dts
diff --git a/configs/zeropi_defconfig b/configs/zeropi_defconfig
new file mode 100644
index 0000000000..f921b09892
--- /dev/null
+++ b/configs/zeropi_defconfig
@@ -0,0 +1,13 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SPL=y
+CONFIG_MACH_SUN8I_H3=y
+CONFIG_DRAM_CLK=408
+CONFIG_MACPWR="PD6"
+# CONFIG_VIDEO_DE2 is not set
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-h3-zeropi"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_CONSOLE_MUX=y
+CONFIG_SUN8I_EMAC=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
-- 
2.31.1