build/patch/u-boot/u-boot-sunxi/board_nanopiduo/add-nanopi-duo.patch

diff --git a/configs/nanopi_duo_defconfig b/configs/nanopi_duo_defconfig
new file mode 100644
index 0000000..7917596
--- /dev/null
+++ b/configs/nanopi_duo_defconfig
@@ -0,0 +1,23 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SYS_TEXT_BASE=0x4a000000
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_MACH_SUN8I_H3=y
+CONFIG_DRAM_CLK=408
+CONFIG_DRAM_ZQ=3881979
+CONFIG_DRAM_ODT_EN=y
+# CONFIG_VIDEO_DE2 is not set
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-h2-plus-nanopi-duo"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_CONSOLE_MUX=y
+CONFIG_SPL_STACK=0x8000
+CONFIG_SYS_PBSIZE=1024
+CONFIG_SPL=y
+CONFIG_SYS_CLK_FREQ=480000000
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+CONFIG_SPL_SPI_SUNXI=y
+CONFIG_SUN8I_EMAC=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE=y
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index b6091f3..112cdfc 100755
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -438,6 +438,7 @@ dtb-$(CONFIG_MACH_SUN8I_H3) += \
 	sun8i-h2-plus-libretech-all-h3-cc.dtb \
 	sun8i-h2-plus-orangepi-r1.dtb \
 	sun8i-h2-plus-orangepi-zero.dtb \
+	sun8i-h2-plus-nanopi-duo.dtb \
 	sun8i-h3-bananapi-m2-plus.dtb \
 	sun8i-h3-orangepi-2.dtb \
 	sun8i-h3-orangepi-lite.dtb \
diff --git a/arch/arm/dts/sun8i-h2-plus-nanopi-duo.dts b/arch/arm/dts/sun8i-h2-plus-nanopi-duo.dts
new file mode 100644
index 0000000..6280346
--- /dev/null
+++ b/arch/arm/dts/sun8i-h2-plus-nanopi-duo.dts
@@ -0,0 +1,98 @@
+/*
+ * adapted by <github.com/karabek>, based on
+ * Copyright (C) 2017 Jelle van der Waa <jelle@vdwaa.nl>
+ *
+ * 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-h3.dtsi"
+#include "sunxi-common-regulators.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/sun4i-a10.h>
+
+/ {
+	model = "FriendlyARM NanoPi DUO";
+	compatible = "friendlyarm,nanopi-duo", "allwinner,sun8i-h3";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		pwr {
+			label = "nanopi:green:pwr";
+			gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
+			default-state = "on";
+		};
+
+		status {
+			label = "nanopi:blue:status";
+			gpios = <&pio 0 10 GPIO_ACTIVE_HIGH>; /* PA10 */
+		};
+	};
+};
+
+&mmc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_pins>;
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <4>;
+	cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+	cd-inverted;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pa_pins>;
+	status = "okay";
+};
+
+&usbphy {
+	/* USB VBUS is always on */
+	status = "okay";
+};