# Maintainer: Eric Woudstra ericwouds AT gmail DOT com

#NOEXTRACT="1"

_gitname="arm-trusted-firmware"
_gitroot=https://github.com/ericwoud/${_gitname}
#_gitroot=https://github.com/mtk-openwrt/${_gitname}
#_gitbranch="wip"
_gitbranch="bpir"
#_gitbranch="master"
#_gitbranch="mtksoc"
pkgbase=bpir64-atf-git
pkgname=("$pkgbase")
epoch=2
pkgver=v2.8r12614.f84551673
pkgrel=6
_ubootpkgver=2023.01
url='https://github.com/mtk-openwrt/arm-trusted-firmware.git'
arch=(aarch64 x86_64)
makedepends=(git dtc)
license=(GPL)
source=("git+${_gitroot}.git#branch=${_gitbranch}"
        "uboot${_ubootpkgver}::https://github.com/u-boot/u-boot/archive/refs/tags/v${_ubootpkgver}.tar.gz"
        '95-atf.hook'
        'bpir-writefip'
        'mtkimage-gpt-expand.patch'
)
sha256sums=(SKIP SKIP SKIP SKIP SKIP)

export CARCH=aarch64
if [[ "$(uname -m)" == "aarch64" ]]; then
  pkgname+=("$pkgbase-fiptool")
else
  makedepends+=(aarch64-linux-gnu-gcc)
  export _crossc="CROSS_COMPILE=aarch64-linux-gnu-"
fi
 
pkgver() {
  cd "${srcdir}/${_gitname}"
  printf "v%s.%sr%s.%s" \
      $(grep '^VERSION_MAJOR' Makefile | cut -b 19-) \
      $(grep '^VERSION_MINOR' Makefile | cut -b 19-) \
      "$(git rev-list --count HEAD)" \
      "$(git rev-parse --short HEAD)"
}

prepare() {
  cd "${srcdir}/${_gitname}"
#  git config --global user.email "you@example.com"
#  git config --global user.name "Your Name"
#  rm -rf ${srcdir}/${_gitname}/.git/rebase-apply  
#  echo -n -e "\n\nCOMMIT DATE:"
#  git log -1 --format="%at" | xargs -I{} date -d @{} +%Y/%m/%d-%H:%M:%S
#  echo -e "\n\n"
#  git am --ignore-space-change --ignore-whitespace "${startdir}/"*.patch
}

_buildmkimage() {
  cd "${srcdir}/u-boot-${_ubootpkgver}"
  cp -vf configs/mt7622_rfb_defconfig configs/my_defconfig
  # No libcrypto (openssl)
  echo "CONFIG_TOOLS_LIBCRYPTO=n" | tee -a configs/my_defconfig
  # kwbimage needs libcrypto, so remove it from build
  sed -i '/kwbimage.o \\/d' ./tools/Makefile
  # reduce objects being build, as they are not linked anyway
  sed -i 's/FIT_OBJS-y :=.*/FIT_OBJS-y := fit_common.o boot\/image-fit.o/' ./tools/Makefile
  ARCH=arm64 make clean
  ARCH=arm64 make my_defconfig
  ARCH=arm64 make tools-only
  mv -vf tools/mkimage nostretch-mkimage
  patch -p1 -N -r - < "${srcdir}/mtkimage-gpt-expand.patch"
  ARCH=arm64 make tools-only
  mv -vf tools/mkimage stretch-mkimage
}

_buildfiptool() {
  cd "${srcdir}/${_gitname}/tools/fiptool"
  sed -i '/-Werror/d' ./Makefile
  make HOSTCCFLAGS+="-D'SHA256(x,y,z)=nop'" LDLIBS=""
}

_buildimage() {
  _plat=$1; _bpir=$2; _atfdev=$3; _stretch=$4; _rest="${@:5}"
  cd "${srcdir}/${_gitname}"
  _file="plat/mediatek/apsoc_common/bl2/bl2_boot_mmc.c"
  [ -f "$_file" ] || _file="plat/mediatek/${_plat}/bl2_boot_mmc.c"
  sed -i 's/.*entry = get_partition_entry.*fip.*/\tentry = get_partition_entry("'${_bpir}'-'${_atfdev}'-fip");/' $_file
  sed -i 's/.*entry = get_partition_entry.*boot.*/\tentry = get_partition_entry("'${_bpir}'-'${_atfdev}'-boot");/' $_file
  touch plat/mediatek/${_plat}/platform.mk
  unset CXXFLAGS CPPFLAGS LDFLAGS
  export CFLAGS=-Wno-error
  make $_crossc PLAT=${_plat} BOOT_DEVICE=$_atfdev LOG_LEVEL=40 USE_MKIMAGE=1 \
       MKIMAGE="${srcdir}/u-boot-${_ubootpkgver}/${_stretch}-mkimage" ${_rest} all # MTK_BL33_IS_64BIT=1 
  if [[ "${_stretch}" == "stretch" ]]; then
    dd of=build/${_plat}/release/${_bpir}-atf-${_atfdev}-header.bin bs=1 count=440 if=build/${_plat}/release/bl2.img
    dd of=build/${_plat}/release/${_bpir}-atf-${_atfdev}-atf.bin          skip=34  if=build/${_plat}/release/bl2.img
  else
    dd of=build/${_plat}/release/${_bpir}-atf-${_atfdev}-atf.bin                   if=build/${_plat}/release/bl2.img
  fi
  if [ -z "$(cat bl2/bl2.mk | grep bl31.bin.o)" ]; then # bl31.bin is not being build in, so add it
    dd of=build/${_plat}/release/${_bpir}-atf-${_atfdev}-bl31.bin                  if=build/${_plat}/release/bl31.bin
  fi
}

build() {
  rm -rf "${srcdir}/${_gitname}"/build/*
  echo "$(uname -m)"
  if [ ! -f "${srcdir}/u-boot-${_ubootpkgver}/nostretch-mkimage"  ] || \
     [ ! -f "${srcdir}/u-boot-${_ubootpkgver}/stretch-mkimage" ]; then _buildmkimage
  fi
  [ -z "$_crossc" ] && _buildfiptool
  _buildimage mt7622 bpir64 sdmmc stretch   DDR3_FLYBY=1 DEVICE_HEADER_OFFSET=0
  _buildimage mt7622 bpir64 emmc  stretch   DDR3_FLYBY=1 DEVICE_HEADER_OFFSET=0
  _buildimage mt7986 bpir3  sdmmc nostretch DRAM_USE_DDR4=1
  _buildimage mt7986 bpir3  emmc  nostretch DRAM_USE_DDR4=1 BROM_HEADER_TYPE=sdmmc
  _buildimage mt7986 bpir3m emmc  nostretch DRAM_USE_DDR4=1
}
 
package_bpir64-atf-git() {
  pkgdesc='ATF BPI-R64 & BPI-R3 images'
  depends=("linux" "dtc" "bpir64-atf-git-fiptool")
  replaces=(bpir64-mkimage)
  install=${pkgname}.install
  cd "${srcdir}"
  install -m755 -vDt "$pkgdir/usr/bin" bpir-writefip
  install -Dt "${pkgdir}/usr/share/libalpm/hooks/" -m644 95-atf.hook
  for _folder in "${srcdir}/${_gitname}/build/"*; do
    cd "$_folder/release"
    install -vDt "$pkgdir/boot" -m644 *-atf-*.bin
  done
}

package_bpir64-atf-git-fiptool() {
  pkgdesc='ATF BPI-R64 & BPI-R3 fiptool'
  depends=()
  cd "${srcdir}/${_gitname}/tools/fiptool"
  install -m755 -vDt "$pkgdir/usr/bin" fiptool
}