U-Boot for the NXP i.MX8MN EVK board
- Build the ARM Trusted firmware binary
- Get firmware-imx package
- Build U-Boot
- Boot
Note: srctree is U-Boot source directory Get ATF from: https://source.codeaurora.org/external/imx/imx-atf branch: imx_5.4.47_2.2.0
$ make PLAT=imx8mn bl31
$ cp build/imx8mn/release/bl31.bin $(srctree)
$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.9.bin
$ chmod +x firmware-imx-8.9.bin
$ ./firmware-imx-8.9
$ cp firmware-imx-8.9/firmware/ddr/synopsys/ddr4*.bin $(srctree)
$ export CROSS_COMPILE=aarch64-poky-linux-
$ make imx8mn_ddr4_evk_defconfig
$ make
Burn the flash.bin to MicroSD card offset 32KB:
$sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=32 conv=notrunc
Set Boot switch to SD boot