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Modifying i.mx6ull BSPs L4.9.11_1.0.0-ga in Yocto

Question asked by Sri Shan on Mar 13, 2018
Latest reply on Mar 14, 2018 by gusarambula
Dear I.MX Community,
Could you please help me with the following
1. How and where can I identify and modify the default configuration files to be modified for the below in i.MX6ULL EVK board ? 


Kernel defualt configuration file 


Uboot default configuration file 


Device tree configuration file 




2. How can we build this Uboot, devicetree, kernel and rootfs components individually using bitbake commands or without using bitbake in yocto build system ? 


3. Could you please confirm the cross_compiler toolchains versions? 


The toolchain mentioned in i.mx6 bsp porting guide (i.MX BSP Porting Guide, Rev. L4.9.11_1.0.0-ga+mx8-alpha, 09/2017) is /opt/fsl-imx-fb/4.9.11/environment-setup-cortexa9hf-vfp-neonpoky-linux-gnueabi 


But the toolchain version whatever am seeing from the build output is /opt/fsl-imx-x11/4.9.11-1.0.0/environment-setup-cortexa7hf-neon-poky-linux-gnueabi 


Are they both are same? 
Kindly do the needful as early as possible
Thanks in advance,