board: sunxi: sun8i-v40: Add Bananapi M2 Berry support

Banana Pi BPI-M2 Berry is a quad-core mini single board computer
built with Allwinner V40 SoC. It features
- Quad Core ARM Cortex A7 CPU V40
- 1GB of RAM .
- microSD/SATA port..
- onboard WiFi and BT
- 4 USB A 2.0 ports
- 1 USB OTG port
- 1 HDMI port
- 1 audio jack
- DC power port

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

arch/arm/dts/Makefile

@@ -367,7 +367,8 @@ dtb-$(CONFIG_MACH_SUN8I_H3) += \
 	sun8i-h3-orangepi-plus.dtb \
 	sun8i-h3-orangepi-plus2e.dtb
 dtb-$(CONFIG_MACH_SUN8I_R40) += \
-	sun8i-r40-bananapi-m2-ultra.dtb
+	sun8i-r40-bananapi-m2-ultra.dtb \
+	sun8i-v40-bananapi-m2-berry.dtb
 dtb-$(CONFIG_MACH_SUN8I_V3S) += \
 	sun8i-v3s-licheepi-zero.dtb
 dtb-$(CONFIG_MACH_SUN50I_H5) += \

arch/arm/dts/sun8i-v40-bananapi-m2-berry.dts

@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * 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-r40.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Banana Pi M2 Berry";
+	compatible = "sinovoip,bpi-m2-berry", "allwinner,sun8i-r40";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&i2c0 {
+	status = "okay";
+
+	axp22x: pmic@68 {
+		compatible = "x-powers,axp221";
+		reg = <0x34>;
+		interrupt-parent = <&nmi_intc>;
+		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
+#include "axp22x.dtsi"
+
+&reg_aldo3 {
+	regulator-always-on;
+	regulator-min-microvolt = <2700000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "avcc";
+};
+
+&reg_dcdc1 {
+	regulator-always-on;
+	regulator-min-microvolt = <3000000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-name = "vcc-3v0";
+};
+
+&reg_dcdc2 {
+	regulator-always-on;
+	regulator-min-microvolt = <1000000>;
+	regulator-max-microvolt = <1300000>;
+	regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc3 {
+	regulator-always-on;
+	regulator-min-microvolt = <1000000>;
+	regulator-max-microvolt = <1300000>;
+	regulator-name = "vdd-sys";
+};
+
+&reg_dcdc5 {
+	regulator-always-on;
+	regulator-min-microvolt = <1500000>;
+	regulator-max-microvolt = <1500000>;
+	regulator-name = "vcc-dram";
+};
+
+&reg_dldo1 {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi-io";
+};
+
+&reg_dldo2 {
+	regulator-min-microvolt = <3300000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-name = "vcc-wifi";
+};
+
+&mmc0 {
+	vmmc-supply = <&reg_dcdc1>;
+	bus-width = <4>;
+	cd-gpios = <&pio 7 13 GPIO_ACTIVE_LOW>; /* PH13 */
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pb_pins>;
+	status = "okay";
+};

board/sunxi/MAINTAINERS

@@ -126,6 +126,11 @@ M:	Jagan Teki <jagan@amarulasolutions.com>
 S:	Maintained
 F:	configs/bananapi_m1_plus_defconfig
 
+BANANAPI M2 BERRY
+M:	Jagan Teki <jagan@amarulasolutions.com>
+S:	Maintained
+F:	configs/bananapi_m2_berry_defconfig
+
 BANANAPI M2 ULTRA BOARD
 M:	Chen-Yu Tsai <wens@csie.org>
 S:	Maintained

configs/bananapi_m2_berry_defconfig

@@ -0,0 +1,14 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SPL=y
+CONFIG_MACH_SUN8I_R40=y
+CONFIG_DRAM_CLK=576
+CONFIG_DRAM_ZQ=3881979
+CONFIG_DRAM_ODT_EN=y
+CONFIG_MMC0_CD_PIN="PH13"
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-v40-bananapi-m2-berry"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL_I2C_SUPPORT=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_AXP_DLDO4_VOLT=2500
+CONFIG_AXP_ELDO3_VOLT=1200