sun50i: a64: Add initial Banana Pi M64 support

From: Jagan Teki <[email protected]>

BPI-M64 is a 64-bit quad-core mini single board computer using the Allwinner A64 SOC.

BPI-M64 features
- 1.2 Ghz Quad-Core ARM Cortex A53
- 2GB DDR3 SDRAM with 733MHz
- MicroSD/eMMC(8GB)
- 10/100/1000Mbps ethernet (Realtek RTL8211E/D)
- Wifi + BT
- IR receiver
- Audio In/Out
- Video In/Out
- 5V 2A DC power-supply

For dts file,
Sync with Linux commit 4879b7ae("Merge tag 'dmaengine-4.12-rc1'").

Boot from MMC:
-------------
U-Boot SPL 2017.05-00667-g85dd258-dirty (May 29 2017 - 13:07:31)
DRAM: 2048 MiB
Trying to boot from MMC1

NOTICE:  BL3-1: Running on A64/H64 (1689) in SRAM A2 (@0x44000)
NOTICE:  Configuring SPC Controller
NOTICE:  BL3-1: v1.0(debug):aa75c8d
NOTICE:  BL3-1: Built : 18:28:27, May 24 2017
NOTICE:  Configuring AXP PMIC
NOTICE:  PMIC: setup successful
INFO:    BL3-1: Initializing runtime services
INFO:    BL3-1: Preparing for EL3 exit to normal world
INFO:    BL3-1: Next image address: 0x4a000000, SPSR: 0x3c9

U-Boot 2017.05-00667-g85dd258-dirty (May 29 2017 - 13:07:31 +0000) Allwinner Technology

CPU:   Allwinner A64 (SUN50I)
Model: BananaPi-M64
DRAM:  2 GiB
MMC:   SUNXI SD/MMC: 0, SUNXI SD/MMC: 1

*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.

starting USB...
No controllers found
Hit any key to stop autoboot: 0

Signed-off-by Jagan Teki <[email protected]>

---
Changes for v2:
- Update email-id
- Tested on BPI-M64
- Added MMC Slot 2 CONFIG_

Note:
Ethernet missing here, since the a64 emac as moved to sun50i-a64-pine64-plus-u-boot.dtsi once it rename/move/update to shared dtsi BPI-M64 should have it, otherwise will create emac node inside m64 dts.

 arch/arm/dts/Makefile                    |   1 +
 arch/arm/dts/sun50i-a64-bananapi-m64.dts | 114 +++++++++++++++++++++++++++++++
 board/sunxi/MAINTAINERS                  |   5 ++
 configs/bananapi_m64_defconfig           |  18 +++++
 4 files changed, 138 insertions(+)
 create mode 100644 arch/arm/dts/sun50i-a64-bananapi-m64.dts
 create mode 100644 configs/bananapi_m64_defconfig

arch/arm/dts/Makefile +1 -0

index a59395b..242b329 100644
@@ -319,6 +319,7 @@ dtb-$(CONFIG_MACH_SUN50I_H5) += \
 	sun50i-h5-orangepi-prime.dtb \
 	sun50i-h5-orangepi-zero-plus2.dtb
 dtb-$(CONFIG_MACH_SUN50I) += \
+	sun50i-a64-bananapi-m64.dtb \
 	sun50i-a64-orangepi-win.dtb \
 	sun50i-a64-pine64-plus.dtb \
 	sun50i-a64-pine64.dtb

arch/arm/dts/sun50i-a64-bananapi-m64.dts new file +114 -0

new file mode 100644
index 0000000..9001812
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2016 ARM Ltd.
+ * Copyright (C) 2017 Jagan Teki <[email protected]>
+ *
+ * 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 library 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 library 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 "sun50i-a64.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "BananaPi-M64";
+	compatible = "sinovoip,bananapi-m64", "allwinner,sun50i-a64";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	reg_vcc3v3: vcc3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	status = "okay";
+};
+
+&i2c1_pins {
+	bias-pull-up;
+};
+
+&mmc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_pins>;
+	vmmc-supply = <&reg_vcc3v3>;
+	cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+	cd-inverted;
+	disable-wp;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <8>;
+	non-removable;
+	cap-mmc-hw-reset;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins_a>;
+	status = "okay";
+};

board/sunxi/MAINTAINERS +5 -0

index 4bcfe9b..0bdff84 100644
@@ -119,6 +119,11 @@ S:	Maintained
 F:	configs/Bananapi_M2_Ultra_defconfig
 F:	arch/arm/dts/sun8i-r40-bananapi-m2-ultra.dts
 
+BANANAPI M64
+M:	Jagan Teki <[email protected]>
+S:	Maintained
+F:	configs/bananapi_m64_defconfig
+
 COLOMBUS BOARD
 M:	Maxime Ripard <[email protected]>
 S:	Maintained

configs/bananapi_m64_defconfig new file +0 -0

new file mode 100644
index 0000000..ad6d3e3