imx8mm_evk¶
U-Boot for the NXP i.MX8MM EVK board
Quick Start¶
- Build the ARM Trusted firmware binary
- Get ddr firmware
- Build U-Boot
- Boot
Get and Build the ARM Trusted firmware¶
Note: builddir is U-Boot build directory (source directory for in-tree builds) Get ATF from: https://source.codeaurora.org/external/imx/imx-atf branch: imx_5.4.47_2.2.0
$ make PLAT=imx8mm bl31
$ cp build/imx8mm/release/bl31.bin $(builddir)
Get the ddr firmware¶
$ 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/lpddr4*.bin $(builddir)
Build U-Boot¶
$ export CROSS_COMPILE=aarch64-poky-linux-
$ make imx8mm_evk_defconfig
$ export ATF_LOAD_ADDR=0x920000
$ make
Burn the flash.bin to MicroSD card offset 33KB:
$sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33 conv=notrunc
$sudo dd if=u-boot.itb of=/dev/sdc bs=1024 seek=384 conv=sync
Boot¶
Set Boot switch to SD boot