board: allwinner: sun50i-h6: Add Orangepi Lite2 support

OrangePi Lite2 is Allwinner H6 based open-source SBC,
which support:
- Allwinner H6 Quad-core 64-bit ARM Cortex-A53
- GPU Mali-T720
- 1GB LPDDR3 RAM
- AXP805 PMIC
- AP6356S Wifi/BT
- USB 2.0, USB 3.0 Host, OTG
- HDMI port
- 5V/2A DC power supply

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>

arch/arm/dts/Makefile

@@ -396,6 +396,7 @@ dtb-$(CONFIG_MACH_SUN50I_H5) += \
 	sun50i-h5-orangepi-prime.dtb \
 	sun50i-h5-orangepi-zero-plus2.dtb
 dtb-$(CONFIG_MACH_SUN50I_H6) += \
+	sun50i-h6-orangepi-lite2.dtb \
 	sun50i-h6-orangepi-one-plus.dtb \
 	sun50i-h6-pine-h64.dtb
 dtb-$(CONFIG_MACH_SUN50I) += \

arch/arm/dts/sun50i-h6-orangepi-lite2.dts

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/*
+ * Copyright (C) 2018 Jagan Teki <jagan@openedev.com>
+ */
+
+#include "sun50i-h6-orangepi.dtsi"
+
+/ {
+	model = "OrangePi Lite2";
+	compatible = "xunlong,orangepi-lite2", "allwinner,sun50i-h6";
+};

board/sunxi/MAINTAINERS

@@ -335,6 +335,11 @@ S:	Maintained
 F:	configs/A20-Olimex-SOM204-EVB_defconfig
 F:	configs/A20-Olimex-SOM204-EVB-eMMC_defconfig
 
+ORANGEPI LITE2 BOARD
+M:	Jagan Teki <jagan@openedev.com>
+S:	Maintained
+F:	configs/orangepi_lite2_defconfig
+
 ORANGEPI ONE PLUS BOARD
 M:	Jagan Teki <jagan@amarulasolutions.com>
 S:	Maintained

configs/orangepi_lite2_defconfig

@@ -0,0 +1,12 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SPL=y
+CONFIG_MACH_SUN50I_H6=y
+CONFIG_MMC0_CD_PIN="PF6"
+# CONFIG_PSCI_RESET is not set
+CONFIG_NR_DRAM_BANKS=1
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_SPL_EFI_PARTITION is not set
+CONFIG_DEFAULT_DEVICE_TREE="sun50i-h6-orangepi-lite2"