topic NS-World in i.MX Processors

NS-World

ailtonlopes — Thu, 12 Apr 2018 15:17:01 GMT

Hi,

I'm having a problem executing the program i'm the NS-Word and i'm not sure why, like i have some part of the code that i'm executing in secure world and another in non-secure world, but i'm having a problem when switching to NS, so i'm not sure why that's happening. I'm suspicious it may be the security access control on the DDR where the code is being executed but i already have the TZASC for the regions to allow read and write to NS so i'm not sure now what i'm doing wrong.
It's not possible for me to detect the error at the moment because im still waiting for my debug probe so im only using print as debug but for this case the program crash so no print option.
Thanks in advanced.

Ailton Lopes

Re: NS-World

Carlos_Musich — Thu, 12 Apr 2018 18:26:04 GMT

Hi Ailton,

which processor are you using?

Carlos

Re: NS-World

ailtonlopes — Thu, 12 Apr 2018 20:25:56 GMT

Hey Carlos

Im using the cortex a9 on the imx6qsabresd.

Re: NS-World

Carlos_Musich — Fri, 13 Apr 2018 19:15:12 GMT

Hi Ailton,

The following thread can help.

"Normal world" Linux for iMX6Q Lite

Please consider that TZASC is a module provided in ARM-Cortex, therefore you may check under ARM documentation for references.

ARM Information Center

Regards,
Carlos
NXP Technical Support
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