A311D Bootloader build

u-boot

”bash git clone https://github.com/u-boot/u-boot cd u-boot export CROSS_COMPILE=aarch64-linux-gnu- export ARCH=arm64


cp ../meson-g12b-bananapi-cm4-mnt-reform2.dts arch/arm/dts/ patch -p1 <../dts-makefile.patch cp ../bananapi-cm4-mnt-reform2defconfig configs/

make bananapi-cm4-mnt-reform2defconfig make -j8 ”

This yields u-boot.bin.
FIP
`bash git clone https://github.com/libreelec/amlogic-boot-fip cd amlogic-boot-fip mkdir mnt-reform2-a311d ./build-fip.sh bananapi-cm4io ../u-boot/u-boot.bin mnt-reform2-a311d ”`

This yields mnt-reform2-a311d/u-boot.bin.sd.bin et al.
Flash
Replace sdX with target SD card.
`bash dd if=mnt-reform2-a311d/u-boot.bin.sd.bin of=/dev/sdX conv=fsync,notrunc bs=512 skip=1 seek=1 apparently not needed: dd if=mnt-reform2-a311d/u-boot.bin.sd.bin of=/dev/sdX conv=fsync,notrunc bs=1 count=440 ”`

See also:


https://u-boot.readthedocs.io/en/latest/board/amlogic/bananapi-cm4io.html

https://github.com/angerman/meson64-tools