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Running I.MX7 - ARM cortex M4 automatically

Question asked by Gopinath Srinivasan on May 31, 2017
Latest reply on Dec 17, 2018 by santosh Rao



I have tested ARM cortex M4 in I.MX7 by using below commands. 


fatload mmc 0:1 0x7F8000 hello_world.bin
dcache flush
bootaux 0x7F8000


The application is started on the ARM Cortex-M4 core with dmesg output in the UART2 console. Now I am trying to run this Auxiliary core automatically during the boot. In the u-boot, I can see the below information related to M4 core.   


Output of printenv


loadm4image=fatload mmc ${mmcdev}:${mmcpart} 0x7F8000 ${m4image}
m4boot=run loadm4image; bootaux 0x7F8000


Though, M4 core is not launched automatically during the boot sequence. Can anyone help me out on this?


Thank You for support.