configure

#!/bin/bash

set -e

TOPDIR=`pwd`

MACH=
BOARD=
ARCH=
uboot_config=
kernel_dtb=
kernel_config=
kernel_modules=
kernel_headers=

FIP_TOOLCHAIN=gcc-linaro-arm-none-eabi-4.8-2014.04_linux
U_TOOLCHAIN=gcc-linaro-aarch64-none-elf-4.8-2013.11_linux
K_TOOLCHAIN=gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu
FIP_CROSS_COMPILE=$TOPDIR/toolchains/$FIP_TOOLCHAIN/bin
U_CROSS_COMPILE=$TOPDIR/toolchains/$U_TOOLCHAIN/bin
K_CROSS_COMPILE=$TOPDIR/toolchains/$K_TOOLCHAIN/bin

list_boards() {
	for chipdir in $(find aml-pack/ -mindepth 1 -maxdepth 1 -type d) ;
	do
	    packchip=`basename ${chipdir}`
	    echo "${packchip}"
	    for boarddir in $(find aml-pack/${packchip} -mindepth 1 -maxdepth 1 -type d | grep "bpi") ;
	    do
		packboard=`basename ${boarddir}`
		echo "    ${packboard}"
	    done
	done
}

# keep the output `sh` friendly
# i.e., no spaces around the '='
generate_board_mk() {
	
	cat <<-EOT
	MACH=$MACH
	ARCH=$ARCH
	BOARD=$BOARD
	K_COMPILE_TOOL=$K_CROSS_COMPILE
	UBOOT_CONFIG=$uboot_config
	KERNEL_CONFIG=$kernel_config
	EOT

}


generate_board_envsh() {
	
	cat <<-EOT
	export MACH=$MACH
	export ARCH=$ARCH
	export BOARD=$BOARD
	export UBOOT_CONFIG=$uboot_config
	export KERNEL_DTB=$kernel_dtb
	export KERNEL_CONFIG=$kernel_config
	export KERNEL_MODULES=${kernel_modules}
	export KERNEL_HEADERS=${kernel_headers}
	export TOPDIR=${TOPDIR}
	EOT

}

usage() {
	cat <<-EOT >&2

	supported boards:
	EOT
	list_boards
}

if [ $# -eq 0 ]; then
	usage
	exit 1
fi

BOARD=$1
case $BOARD in
	bpi-m5)
		MACH=sm1
		ARCH=arm64
		BOARD=bpi-m5
		uboot_config=bananapi_m5_defconfig
		kernel_dtb=meson64_bananapi_*.dtb
		kernel_config=bananapi_m5_defconfig
		kernel_modules="4.9.312-BPI-M5"
		kernel_headers="linux-headers-4.9.312-BPI-M5"
		;;
	*)
		echo -e "\033[31mboard ${BOARD} is not support\033[0m"
		exit 1
		;;
esac

if [ ! -d ${TOPDIR}/aml-pack/${MACH}/${BOARD} ]; then
	echo -e "\033[31mboard ${BOARD} is not support\033[0m"
	usage
fi

export PATH=$FIP_CROSS_COMPILE:$U_CROSS_COMPILE:$PATH

if [ -e env.sh ]; then
	rm env.sh
fi
generate_board_envsh "$1" > env.sh

if [ -e chosen_board.mk ]; then
        rm chosen_board.mk
fi
generate_board_mk "$1" > chosen_board.mk