sunxi: Add suport for A83T based Banana-pi M3 Board

Add dts and defconfig for Banana-pi M3 board.

It has 2G LPDDR3, UART, ethernet, USB, HDMI, USB Sata, MIPI DSI,
mic, AP6212 Wifi, etc on it.
It is paired with AXP813 PMIC which is almost same as AXP818.

Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
[hdegoede@redhat.com: rename to Sinovoip_BPI_M3_defconfig/sun8i-a83t-sinovoip-bpi-m3.dts]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 641510c..1c7d359 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -183,7 +183,8 @@
 	sun8i-a33-q8-tablet.dtb \
 	sun8i-a33-sinlinx-sina33.dtb
 dtb-$(CONFIG_MACH_SUN8I_A83T) += \
-	sun8i-a83t-allwinner-h8homlet-v2.dtb
+	sun8i-a83t-allwinner-h8homlet-v2.dtb \
+	sun8i-a83t-sinovoip-bpi-m3.dtb
 dtb-$(CONFIG_MACH_SUN8I_H3) += \
 	sun8i-h3-orangepi-pc.dtb \
 	sun8i-h3-orangepi-plus.dtb
diff --git a/arch/arm/dts/sun8i-a83t-sinovoip-bpi-m3.dts b/arch/arm/dts/sun8i-a83t-sinovoip-bpi-m3.dts
new file mode 100644
index 0000000..91ff3a9
--- /dev/null
+++ b/arch/arm/dts/sun8i-a83t-sinovoip-bpi-m3.dts
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2015 Vishnu Patekar
+ * Vishnu Patekar <vishnupatekar0510@gmail.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+#include "sun8i-a83t.dtsi"
+
+/ {
+	model = "Allwinner A83T BananaPi M3 Board v1.2";
+	compatible = "bananapi,m3v1.2", "allwinner,sun8i-a83t";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins_b>;
+	status = "okay";
+};
diff --git a/board/sunxi/MAINTAINERS b/board/sunxi/MAINTAINERS
index 131c341..739b6fd 100644
--- a/board/sunxi/MAINTAINERS
+++ b/board/sunxi/MAINTAINERS
@@ -183,6 +183,11 @@
 F:	configs/Sinlinx_SinA33_defconfig
 W:	http://linux-sunxi.org/Sinlinx_SinA33
 
+SINOVOIP BPI M3 A83T BOARD
+M:	VishnuPatekar <vishnupatekar0510@gmail.com>
+S:	Maintained
+F:	configs/Sinovoip_BPI_M3_defconfig
+
 WEXLER-TAB7200 BOARD
 M:	Aleksei Mamlin <mamlinav@gmail.com>
 S:	Maintained
diff --git a/configs/Sinovoip_BPI_M3_defconfig b/configs/Sinovoip_BPI_M3_defconfig
new file mode 100644
index 0000000..b96be50
--- /dev/null
+++ b/configs/Sinovoip_BPI_M3_defconfig
@@ -0,0 +1,26 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_MACH_SUN8I_A83T=y
+CONFIG_DRAM_CLK=480
+CONFIG_DRAM_ZQ=15355
+CONFIG_DRAM_ODT_EN=y
+CONFIG_DRAM_TYPE=7
+CONFIG_SYS_EXTRA_OPTIONS=""
+#CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
+#CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
+CONFIG_AXP_GPIO=y
+#CONFIG_USB_MUSB_HOST=y
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-a83t-sinovoip-bpi-m3"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+CONFIG_AXP_DCDC1_VOLT=3000
+CONFIG_AXP_DCDC2_VOLT=900
+CONFIG_AXP_DCDC3_VOLT=900
+CONFIG_AXP_DCDC4_VOLT=0
+CONFIG_AXP_DCDC5_VOLT=1200
+CONFIG_AXP_ALDO2_VOLT=0
+CONFIG_AXP_ALDO3_VOLT=0
+CONFIG_AXP_DLDO4_VOLT=0