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Can't save parameters in U-Boot (iMX6Q)

Question asked by Andrey Lipov on Feb 6, 2015
Latest reply on Feb 8, 2015 by igorpadykov

Hello,

i have some board with iMX6Q

There i have the U-boot menu.

 

By default systems start with this parameters:

setenv bootargs console=ttySAC0,115200 init=/init video=mxcfb0:dev=ldb,LDB-1080P60,if=RGB24,bpp=32 ldb=spl0 video=mxcfb1:off video=mxcfb2:off fbmem=48M vmalloc=400M androidboot.console=ttySAC0 androidboot.hardware=freescale

 

i trying to change the LVDS output from 24bit to 18bit.

It's mean i need to change RGB24 to RGB666.

setenv bootargs console=ttySAC0,115200 init=/init video=mxcfb0:dev=ldb,LDB-1080P60,if=RGB666,bpp=32 ldb=spl0 video=mxcfb1:off video=mxcfb2:off fbmem=48M vmalloc=400M androidboot.console=ttySAC0 androidboot.hardware=freescale

 

Next step: saveenv

i see this:

Saving Environment to MMC...

Writing to MMC(3)... done

 

Right?

but on next step i run Boot, and in log i see it's run with default parametrs RGB24. it's mean not saved my parametrs. Why so?

Next step: boot or run bootcmd

 

How to change this parametrs? why his not saved the new parametrs?

 

And another quastion:

There i have boot menu

[1]boot from emmc

[2]boot from sdcard

[3]boot from tftp

[5]download from sdcard

[0]setting boot args

[q]exit to command mode

Enter your selection:

How to change thismenu and parametrs?

 

Thank's lot,

Andrey

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