How to modify dts to make sure the M7 and A53 work ok for S32R45

[aiweixin]

Hi,

    I want to start up both M7 and A53 core, M7 run user app, and A53 run linux.

    I find a issue: the M7 start firstly，and initialize gpio56, then control the led flashing; when A53 load linux and dtb, the linux also initialize gpio56(siul2), which cause the user app on M7 work failure.

    How can i do for it? Some doc or idea? 

[UrikRodriguez]

Hello @aiweixin ,

Could you please share me how did you start the M7 core?

It is likely that what is happening to you is that the mmc dev ${mmcdev} command reconfigures the pins for the uSDHC (among another configurations), which are the ones you use to toggle the LED. You can start the M7 after running the mmc dev command but this could cause problems with the A53 application. 

Best regards, 

Urik

[petervlna]

Hello,

I have passed your question to the RADAR SW team.

Best regards,

Peter