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

Question asked by srinivasaporam on Jun 18, 2015
Latest reply on Jun 19, 2015 by igorpadykov


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( 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.