configs/cubieboard1: new defconfig

This patch adds a new defconfig for Cubieboard1 made by Cubietech. It is
based on the Allwinner A10 SoC. See:
http://www.cubietech.com/product-detail/cubieboard1.

The defconfig uses upstream U-Boot and Linux.

Signed-off-by: Gero Schwäricke <gero.schwaericke@posteo.de>
Reviewed-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

board/cubietech/cubieboard1/genimage.cfg

@@ -0,0 +1,16 @@
+image sdcard.img {
+	hdimage {
+	}
+
+	partition u-boot {
+		in-partition-table = "no"
+		image = "u-boot-sunxi-with-spl.bin"
+		offset = 8K
+		size = 1016K # 1MB - 8KB
+	}
+
+	partition rootfs {
+		partition-type = 0x83
+		image = "rootfs.ext4"
+	}
+}

board/cubietech/cubieboard1/patches/linux-headers/linux-headers.hash

@@ -0,0 +1 @@
+../linux/linux.hash

board/cubietech/cubieboard1/patches/linux/linux.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  19b31956d229b5b9ca5671fa1c74320179682a3d8d00fc86794114b21da86039  linux-6.8.12.tar.xz

board/cubietech/cubieboard1/patches/uboot/uboot.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  18a853fe39fad7ad03a90cc2d4275aeaed6da69735defac3492b80508843dd4a  u-boot-2024.04.tar.bz2

board/cubietech/cubieboard1/readme.txt

@@ -0,0 +1,32 @@
+Cubietech Cubieboard1
+=====================
+
+Cubieboard1 is the first generation Cubieboard from Cubietech.
+
+Cubietech:
+http://www.cubietech.com/product-detail/cubieboard1
+
+Linux Sunxi Wiki:
+https://linux-sunxi.org/Cubietech_Cubieboard
+
+Building
+--------
+
+Configure and build with
+
+  make cubieboard1_defconfig
+  make
+
+Flashing
+--------
+
+Flash the sdcard image onto a micro sdcard with
+
+  dd if=output/images/sdcard.img of=/dev/sdX bs=1M conv=fsync
+
+Running
+-------
+
+Connect a 3V3 serial interface to the serial header on the top side of the board
+(between the USB jacks and the A10 chip). Then provide power to the board. The
+interface uses 115200 baud.

board/cubietech/cubieboard1/rootfs_overlay/boot/extlinux/extlinux.conf

@@ -0,0 +1,5 @@
+DEFAULT linux
+LABEL linux
+  KERNEL /boot/zImage
+  DEVICETREE /boot/sun4i-a10-cubieboard.dtb
+  APPEND console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p1 rootwait