MMC=/dev/mmcblk0

git clone https://github.com/smaeul/sun20i_d1_spl -b mainline
pushd sun20i_d1_spl
make $NUMJOBS p=sun20iw1p1 mmc
dd if=nboot/boot0_sdcard_sun20iw1p1.bin of=$MMC bs=8192 seek=1  # Primary location, incompatible with GPT
dd if=nboot/boot0_sdcard_sun20iw1p1.bin of=$MMC bs=8192 seek=16 # Backup location
popd

#git clone https://github.com/smaeul/opensbi -b d1-wip
git clone https://github.com/tekkamanninja/opensbi -b allwinner_d1
pushd opensbi
PLATFORM=generic FW_PIC=y BUILD_INFO=y make $NUMJOBS
popd
pushd opensbi
CROSS_COMPILE=riscv64-linux-gnu- PLATFORM=generic FW_PIC=y BUILD_INFO=y make
popd

#git clone https://github.com/smaeul/u-boot -b d1-wip
git clone https://github.com/tekkamanninja/u-boot -b allwinner_d1
pushd u-boot
make $NUMJOBS nezha_defconfig
make $NUMJOBS
ln -sf ../toc1.cfg .
tools/mkimage -T sunxi_toc1 -d toc1.cfg u-boot.toc1
dd if=u-boot.toc1 of=$MMC bs=512 seek=32800
dd if=u-boot.toc1 of=$MMC bs=512 seek=24576
popd

# KERNEL LINUX
#git clone https://github.com/smaeul/linux -b d1-wip
git clone https://github.com/tekkamanninja/linux.git -b origin/allwinner_nezha_d1_devel
#pushd linux
#git checkout origin/allwinner_nezha_d1_devel
#popd

# GRUB
git clone git://git.savannah.gnu.org/grub.git
pushd grub
git remote add github.com_tekkamanninja https://github.com/tekkamanninja/grub.git
git fetch github.com_tekkamanninja
git checkout github.com_tekkamanninja/riscv_devel_Nikita_V3
popd


pushd grub

#setup build env
GRUB_INSTALL_DIR="${RISCV_ROOTFS}"

GRUB_BUILD_CONFIG="--target=riscv64-linux-gnu --with-platform=efi --prefix=${GRUB_INSTALL_DIR}"

GRUB_DEFAULT_CFG_RISCV="${GRUB_INFO_DIR}/default.cfg"
GRUB_BINARY_NAME_RISCV=grubriscv64.efi
GRUB_BINARY_FORMAT_RISCV=riscv64-efi
GRUB_PREFIX_DIR_RISCV=efi
GRUB_UEFI_IMAGE_MODULES_RISCV="acpi adler32 affs afs afsplitter all_video archelp bfs bitmap bitmap_scale blocklist boot bswap_test btrfs bufio cat cbfs chain cmdline_cat_test cmp cmp_test configfile cpio_be cpio crc64 cryptodisk crypto ctz_test datehook date datetime diskfilter disk div div_test dm_nv echo efifwsetup efi_gop efinet elf eval exfat exfctest ext2 extcmd f2fs fat fdt file font fshelp functional_test gcry_arcfour gcry_blowfish gcry_camellia gcry_cast5 gcry_crc gcry_des gcry_dsa gcry_idea gcry_md4 gcry_md5 gcry_rfc2268 gcry_rijndael gcry_rmd160 gcry_rsa gcry_seed gcry_serpent gcry_sha1 gcry_sha256 gcry_sha512 gcry_tiger gcry_twofish gcry_whirlpool geli gettext gfxmenu gfxterm_background gfxterm_menu gfxterm gptsync gzio halt hashsum hello help hexdump hfs hfspluscomp hfsplus http iso9660 jfs jpeg json keystatus ldm linux loadenv loopback lsacpi lsefimmap lsefi lsefisystab lsmmap ls lssal luks2 luks lvm lzopio macbless macho mdraid09_be mdraid09 mdraid1x memdisk memrw minicmd minix2_be minix2 minix3_be minix3 minix_be minix mmap mpi msdospart mul_test net newc nilfs2 normal ntfscomp ntfs odc offsetio part_acorn part_amiga part_apple part_bsd part_dfly part_dvh part_gpt part_msdos part_plan part_sun part_sunpc parttool password password_pbkdf2 pbkdf2 pbkdf2_test pgp png priority_queue probe procfs progress raid5rec raid6rec read reboot regexp reiserfs romfs scsi search_fs_file search_fs_uuid search_label search serial setjmp setjmp_test sfs shift_test signature_test sleep sleep_test smbios squash4 strtoull_test syslinuxcfg tar terminal terminfo test_blockarg testload test testspeed tftp tga time tpm trig tr true udf ufs1_be ufs1 ufs2 video_colors video_fb videoinfo video videotest_checksum videotest xfs xnu_uuid xnu_uuid_test xzio zfscrypt zfsinfo zfs zstd"
GRUB_MKIMAGE_ARG_RISCV="-c $(GRUB_DEFAULT_CFG_RISCV) $(GRUB_UEFI_IMAGE_MODULES_RISCV)"

#bootstrap, download gunlib...
ARCH=riscv ./bootstrap
#auto generate the config files
ARCH=riscv ./autogen.sh
#auto config and generate Makefile
ARCH=riscv ./configure  ${GRUB_BUILD_CONFIG}
#build and install to ${RISCV_ROOTFS}
ARCH=riscv make install

#make executable efi file
pushd ${GRUB_INSTALL_DIR}
./bin/grub-mkimage -v \
                   -o ${GRUB_BINARY_NAME_RISCV} \
                   -O  ${GRUB_BINARY_FORMAT_RISCV} \
                   -p ${GRUB_PREFIX_DIR_RISCV}  \
                   ${GRUB_MKIMAGE_ARG_RISCV}
popd

popd