changing environment variables in uboot file for imx.6 board (u-boot-imx6qsabresd-v2013.10-r0.imx)

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changing environment variables in uboot file for imx.6 board (u-boot-imx6qsabresd-v2013.10-r0.imx)

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srinivasaporam
Contributor II

Hi,

We are working imx6 board which has come just after assembly. Now, we would like port OS to this new board for which we are following Yocto training(https://community.freescale.com/docs/DOC-94849). in this we have come upto deploying either image or rootfs or uboot file to SD card. We have tried with all the options each time, but not getting anything on the display/HD monitor which is connected to board(imx6) through HDMI cable.

I think we are missing one more which states that to change boot args in uboot file/ set environment variables for HDMI:

setenv mmcargs "setenv bootargs console=${console},${baudrate} root=${mmcroot} rootwait rw video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24"

     but we don't know how to set them, where to set them because we are very new to uboot.

the u-boot file for particular imx6 is u-boot-imx6qsabresd-v2013.10-r0.imx which resides at fsl-community-bsp/build/tmp/deploy/images/imx6qsabresd/

how to the environment variables in this file (u-boot-imx6qsabresd-v2013.10-r0.imx). does it requires any special tools.

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igorpadykov
NXP TechSupport
NXP TechSupport

HI Srinivasa

Uboot 2013.04 is used in FSL BSP

L3.10.17_1.0.2_iMX6QDLS_BUNDLE

please refer to attached Release Notes Table 8. Kernel Boot Parameters

Also one can post specific Uboot questions on Uboot forum

WebHome < U-Boot < DENX

or maillist U-Boot Info Page

Best regards

igor

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