#!/usr/bin/env zsh
# Copyright (c) 2016 Dyne.org Foundation
# arm-sdk is written and maintained by Ivan J. <parazyd@dyne.org>
#
# This file is part of arm-sdk
#
# This source code 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 3 of the License, or
# (at your option) any later version.
#
# This software 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.
#
# You should have received a copy of the GNU General Public License
# along with this source code. If not, see <http://www.gnu.org/licenses/>.

## kernel build script for Sinovoip Banana Pi M2+ boards
##  http://linux-sunxi.org/Sinovoip_Banana_Pi_M2%2B

## settings & config
vars+=(device_name arch size parted_type parted_boot parted_root inittab)
vars+=(gitkernel gitbranch)
arrs+=(custmodules)

device_name="bananapi-m2plus"
arch="armhf"
size=1337
inittab="T1:12345:respawn:/sbin/agetty -L ttyS0 115200 vt100"

parted_type="dos"
parted_boot="fat32 2048s 264191s"
parted_root="ext4 264192s 100%"

extra_packages+=()
custmodules=()

gitkernel="https://github.com/BladeGroup/linux-sunxi.git"
gitbranch="h3"

uboot=mainline
sunxi_uboot="git://git.denx.de/u-boot.git"

prebuild() {
	fn prebuild
	req=(device_name strapdir)
	ckreq || return 1

	notice "executing $device_name prebuild"

	enablessh
	write-fstab
	copy-zram-init
	install-custom-packages

	mkdir -p $R/tmp/kernels/$device_name


	clone-git $sunxi_uboot "$R/tmp/kernels/$device_name/u-boot" || zerr
	pushd $R/tmp/kernels/$device_name/u-boot
		#git checkout "$(git tag | tail -n1)" ## to a stable release
		cp -f $R/extra/m2plus/uboot_defconfig $R/tmp/kernels/$device_name/u-boot/configs/Sinovoip_BPI_M2_plus_defconfig
	popd
}

postbuild() {
	fn postbuild

	notice "executing $device_name postbuild"

	notice "building u-boot"
	pushd $R/tmp/kernels/$device_name/u-boot
		make distclean
		make CROSS_COMPILE=$compiler Sinovoip_BPI_M2_plus_defconfig
		make CROSS_COMPILE=$compiler || zerr
		act "dd-ing to image..."
		sudo dd if=u-boot-sunxi-with-spl.bin of=$loopdevice bs=1024 seek=8 || zerr
	popd

	notice "creating boot.cmd"
	cat <<EOF | sudo tee ${strapdir}/boot/boot.cmd
setenv machid 1029
setenv bootm_boot_mode sec
setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait panic=10
load mmc 0:1 0x43000000 script.bin || load mmc 0:1 0x43000000 boot/script.bin
bootm 0x42000000
EOF

	notice "creating u-boot script image"
	sudo mkimage -A arm -T script -C none -d $strapdir/boot/boot.cmd $strapdir/boot/boot.scr || zerr

	postbuild-clean
}

build_kernel_armhf() {
	fn build_kernel_armhf
	req=(R arch device_name gitkernel gitbranch MAKEOPTS)
	req+=(strapdir sunxi_uboot)
	req+=(loopdevice)
	ckreq || return 1

	notice "building $arch kernel"

	prebuild || zerr

	get-kernel-sources
	pushd $R/tmp/kernels/$device_name/${device_name}-linux
		make \
			ARCH=arm CROSS_COMPILE=$compiler \
			sun8i_h3_defconfig || zerr
		make $MAKEOPTS \
			ARCH=arm CROSS_COMPILE=$compiler \
			uImage modules || zerr
		sudo -E PATH="$PATH" \
			make INSTALL_MOD_PATH=$strapdir modules_install || zerr

		sudo cp arch/arm/boot/uImage $strapdir/boot/
	popd

	#sudo rm -rf $strapdir/lib/firmware
	#get-kernel-firmware
	#sudo cp $CPVERBOSE -ra $R/tmp/linux-firmware $strapdir/lib/firmware

	#pushd $R/tmp/kernels/$device_name/${device_name}-linux
	#	sudo -E PATH="$PATH" \
	#		make \
	#		ARCH=arm CROSS_COMPILE=$compiler
	#		INSTALL_MOD_PATH=$strapdir firmware_install || zerr
	#	sudo cp $CPVERBOSE arch/arm/boot/uImage $strapdir/boot/
	#	make ARCH=arm CROSS_COMPILE=$compiler mrproper
	#	make ARCH=arm CROSS_COMPILE=$compiler sun8i_h3_defconfig
	#	sudo -E PATH="$PATH" \
	#		make \
	#			ARCH=arm CROSS_COMPILE=$compiler \
	#			modules_prepare || zerr
	#popd

	postbuild || zerr
}