Merge from bittboy/buildroot@db180c0

board/orangepi/orangepi-r1/boot.cmd

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+setenv fdt_high ffffffff
+
+setenv bootargs console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p2 rootwait
+
+fatload mmc 0 $kernel_addr_r zImage
+fatload mmc 0 $fdt_addr_r sun8i-h2-plus-orangepi-r1.dtb
+
+bootz $kernel_addr_r - $fdt_addr_r

board/orangepi/orangepi-r1/genimage.cfg

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+# Minimal SD card image for the OrangePi R1
+#
+image boot.vfat {
+	vfat {
+		files = {
+			"zImage",
+			"sun8i-h2-plus-orangepi-r1.dtb",
+			"boot.scr"
+		}
+	}
+	size = 10M
+}
+
+image sdcard.img {
+	hdimage {
+	}
+
+	partition u-boot {
+		in-partition-table = "no"
+		image = "u-boot-sunxi-with-spl.bin"
+		offset = 8192
+		size = 1040384 # 1MB - 8192
+	}
+
+	partition boot {
+		partition-type = 0xC
+		bootable = "true"
+		image = "boot.vfat"
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+		size = 512M
+	}
+}

board/orangepi/orangepi-r1/linux-extras.config

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+# spi nor
+CONFIG_MTD=y
+CONFIG_MTD_OF_PARTS=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_M25P80=y
+
+# ondemand cpufreq governor
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+
+# USB ethernet
+CONFIG_USB_RTL8152=y

board/orangepi/orangepi-r1/readme.txt

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+OrangePi R1
+
+Intro
+=====
+
+This default configuration will allow you to start experimenting with the
+buildroot environment for the OrangePi R1. With the current configuration
+it will bring-up the board, and allow access through the serial console.
+
+How to build it
+===============
+
+Configure Buildroot:
+
+    $ make orangepi_r1_defconfig
+
+Compile everything and build the SD card image:
+
+    $ make
+
+How to write the SD card
+========================
+
+Once the build process is finished you will have an image called "sdcard.img"
+in the output/images/ directory.
+
+Copy the bootable "sdcard.img" onto an SD card with "dd":
+
+  $ sudo dd if=output/images/sdcard.img of=/dev/sdX