Step 3 : u-boot compilation

u-boot compilation

In this program, you are going to learn

How to ?

Topics in this section,

Source code download and compilation

Copy the binary to your SD card

Source code download and compilation

Make sure current dir is $HOME

$ cd $HOME

Use below command to doenload the source code.

$ git clone https://github.com/u-boot/u-boot

Compilation

$ cd u-boot
$ export CROSS_COMPILE=aarch64-none-elf-
$ echo 'CONFIG_CMD_CACHE=y' >> ./configs/rpi_4_defconfig
$ make rpi_4_defconfig
$ make -j4 (if your PC has 4 processor cores)

Copy the u-boot binary to your SD Card

$ sudo cp ./u-boot.bin /mnt/boot/u-boot.bin

What is ?