which u-boot file in yocto can I burn into emmc for imx8mqevk board (maaxboard) using uuu tool?

[gonewithwind-peter]

hi all,

now I am playing maaxboard emmc version which porting from   imx8mqevk board .

I use uuu tool to burn image into emmc. it's not like sc card, I can use  balenaEtcher to burn all files in sd card with file :fsl-image-validation-imx-imx8mqevk-20201124152610.rootfs.sdcard.bz2(after  unzip is fsl-image-validation-imx-imx8mqevk-20201124152610.rootfs.sdcard)

it seems uuu tool can not burn all files together, it need to burn u-boot separately as below script:

****

uuu_version 1.3.154

SDP: boot -f u-boot-imx8m-uuu.imx

# This command will be run when use SPL

SDPU: delay 1000

SDPU: write -f u-boot-imx8m-uuu.imx -offset 0x57c00

SDPU: jump

# This command will be run when ROM support stream mode

SDPS: boot -f download/u-boot.imx

FB: ucmd printenv

FB: ucmd mmc dev

FB: ucmd setenv fastboot_dev mmc

FB: ucmd setenv mmcdev ${emmc_dev}

FB: ucmd mmc dev ${emmc_dev}

# erase environment variables of uboot

FB: ucmd mmc erase 0x2000 0x8

FB: flash -raw2sparse all download/fsl-image-validation-imx-imx8mqevk-20201124152610.rootfs.sdcard

FB: flash bootloader download/u-boot-imx8mqevk.bin.   ##(maybe not this file)

FB: ucmd mmc partconf ${emmc_dev} 0 1 0

FB: done

*****

but I do not know which one is the u-boot image I can separately burn it

in yocto image folder ,there are some files: 

tmp/deploy/images/imx8mqevk 

u-boot.bin     u-boot-imx8mqevk.bin     u-boot-sd-2018.03-r0.bin  u-boot-spl.bin-imx8mqevk                           u-boot-spl.bin-imx8mqevk-sd

u-boot.bin-sd  u-boot-imx8mqevk.bin-sd  u-boot-spl.bin            u-boot-spl.bin-imx8mqevk-2018.03-r0-sd-2018.03-r0  u-boot-spl.bin-sd

my u-boot support optee in sd card.

my question:

1. which is the correct u-boot image?

2. can I use  one file fsl-image-validation-imx-imx8mqevk-20201124152610.rootfs.sdcard to burn into emmc  with uuu tool same as  burning sdcard? if possible,  what is  the script?

Thank you. 

[josephzhou1]

hi 

of cos u can use built-in scripts to do flashing like this :

uuu -b emmc_all bootloader rootfs.sdcard.bz2/*         #Decompress rootfs whole image and burn into emmc (since 1.1.87), build-in scriipts

for ur case such like 

uuu -b emmc_all  imx-boot-imx8mqevk-sd.bin-flash_ddr4_em fsl-image-validation-imx-imx8mqevk-20201124152610.rootfs.sdcard.bz2/*

thank you please try it and let mi know

[gonewithwind-peter]

thinks, I will try. 

now I am using sdcard version.

maybe some days later I will use emmc version

[josephzhou1]

no problem we are here just sharing and help .  for sdcard almost same . all used built-in scripts such as :

Built-in script
uuu -b emmc bootloader Write bootloader to emmc
uuu -b emmc_all bootloader rootfs.sdcard Write rootfs to emmc
uuu -b emmc_all bootloader rootfs.sdcard.bz2/* Decompress rootfs and write -
rootfs to emmc
uuu -b sd bootloader Write bootloader to sd card
uuu -b sd_all bootloader rootfs.sdcard Write rootfs to sd card
uuu -b sd_all bootloader rootfs.sdcard.bz2/* Decompress rootfs and write -
rootfs to sd card
uuu -b qspi qspi_bootloader write bootloader to qspi
uuu -b qspi qspi_bootloader m4image write m4image to qpsi
uuu -b spl bootloader Download SPL and uboot

hope u sucessful.

thanks 

[gonewithwind-peter · Accepted solution]

the separated u-boot data of mine is imx-boot-imx8mqevk-sd.bin-flash_ddr4_em