pcDuino3 Nano sunnxi kernel build script and auxiliary files

cd ./staging
mkdir -p ./output/boot

git clone https://github.com/dan-and/linux-sunxi.git
git clone https://github.com/digitalhack/pcDuino3Nano-kernel.git
unzip -o ./pcDuino3Nano-kernel/firmware.zip -d ./linux-sunxi/

cd linux-sunxi

# Patch allwinner gmac driver for pcDuino3 Nano
patch --batch -N -p1 < ../pcDuino3Nano-kernel/linksprite_pcduino3_nano_gmac.patch

make CROSS_COMPILE=arm-linux-gnueabihf- clean

cp ../pcDuino3Nano-kernel/linksprite_pcduino3_nano_defconfig .config

# Optional step if you want to change the configuration
make -j2 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig

make -j2 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- all zImage modules_prepare

# Patch the buildtar script to include zImage as vmlinuz in the tar file
patch --batch -N -p1 < ../pcDuino3Nano-kernel/zImage_buildtar.patch

make -j1 targz-pkg LOCALVERSION="-pcduino3-nano" ARCH=arm \
    CROSS_COMPILE=arm-linux-gnueabihf-

# Uncomment the lines below if you want to update fex and script files
# fex2bin ../pcDuino3Nano-kernel/Linksprite_pcDuino3_Nano.fex \
#     ../pcDuino3Nano-kernel/linksprite-pcduino3-nano.bin
# mkimage -C none -A arm -T script -d ../pcDuino3Nano-kernel/boot.cmd \
#     ../pcDuino3Nano-kernel/boot.scr >> /dev/null

# Move the boot files to staging

cp ../pcDuino3Nano-kernel/boot.scr ../output/boot
cp ../pcDuino3Nano-kernel/linksprite-pcduino3-nano.bin ../output/boot
cp *pcduino3-nano.tar.gz ../output/boot

# If you wish to update your kernel continue below. I you are building a
# complete sdcard continue on to digitalhack/pcDuino3Nano-rootfs

# Update the sdcard with new kernel

cd ../output
mkdir bootfs
mkdir rootfs

bootfscard="/dev/sdb1"
rootfscard="/dev/sdb2"

mount ${bootfscard} ./bootfs
tar zxvf ./boot/linux-3.4.106-pcduino3-nano.tar.gz --wildcards --strip-components=1 \
    -C ./bootfs/ boot/System.map* boot/config* boot/vmlinuz*
umount ${bootfscard}

mount ${rootfscard} ./rootfs
tar zxvf ./boot/linux-3.4.106-pcduino3-nano.tar.gz -C ./rootfs/ lib
umount ${rootfscard}