[i.mx8mn][ddr4][ab2] I want to boot using emmc on ab2 board

[bryan_hong]

Hello

I have success the booting with SD card on ab2 board.
But I failed to booting with eMMC on ab2 board.

Below is the command I use to flash emmc.

uuu -b emmc_all imx-boot-imx8mnddr4ab2-ab2.bin-flash_ddr4_evk fsl-image-af-littlekernel-imx8mnddr4ab2-20220110053440.rootfs.wic

I want to know what command and what image file to use to download emmc to make booting successful.

thanks
Bryan

[joanxie]

should be the same images as you flashed to your sd card, what error do you get when you boot the board? did you flash the same images to the sd card successfully?

[bryan_hong]

Hello joanxie

On SD card, I use below commands.

$bzip2 -d fsl-image-af-littlekernel-imx8mnddr4ab2-20210810094239.rootfs.wic.bz2

$sudo dd if=fsl-image-af-littlekernel-imx8mnddr4ab2-20210810094239.rootfs.wic of=/dev/mmcblk0 bs=1M conv=fsync

and I have attached error log for emmc boot fail.

[ 2.542605] mmc0: new ultra high speed SDR104 SDIO card at address 0001  <-- stucked

thanks

Bryan

[joanxie]

the command you use is correct, how about using this command to flash images to SD card? does it work?

"uuu -b sd_all imx-boot-imx8mnddr4ab2-ab2.bin-flash_ddr4_evk fsl-image-af-littlekernel-imx8mnddr4ab2-20220110053440.rootfs.wic"

[bryan_hong]

Hello joanxie

===
uuu -b sd_all imx-boot-imx8mnddr4ab2-ab2.bin-flash_ddr4_evk fsl-image-af-littlekernel-imx8mnddr4ab2-20220110053440.rootfs.wic
uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.4.139-0-g1a8f760

Success 1 Failure 0

1:13 6/ 6 [Done ] FB: done
===

and then The boot with sdcard was success. 

thanks
Bryan

[joanxie]

this should be your emmc issue, you need to check that, the images are fine