Linux/AM6548: RTOS and Linux simultaneous boot

sarfaraz shaikh

Part Number: AM6548

Tool/software: Linux

As Am6548 is quad core processor . It also has 2 R5 Processor. Is it possible to boot TI RTOS on R5 and TI Linux on quad core in parallel. Is there any documentation for this. Thanks.

over 6 years ago

0 RonB over 6 years ago

TI__Mastermind 30726 points

Hi, thanks for your post.

The AM65x Boot Flow is documented here:

http://software-dl.ti.com/processor-sdk-linux/esd/docs/05_03_00_07/linux/Foundational_Components_U-Boot.html#boot-flow

As you can see, the R5 gets put in reset by the current process. The SW could be changed to start another application, but we don't have any further documentation of this at this time. You would need to understand the existing code out there and use that as a reference at this point.

I hope this helps.

0 sarfaraz shaikh over 6 years ago in reply to RonB

Expert 1546 points

Thanks for your valuable input.

Does the current AM65XX IDK board supports hardware for parallel booting of 2 OS at the same time. like RTOS on R5 and Linux on A5 .

HW compatibility in the sense from RAM for both the controller.

0 RonB over 6 years ago in reply to sarfaraz shaikh

TI__Mastermind 30726 points

Hello,

I don't know of any hw limitations that would prevent bringing up the A53 and the R5 in "parallel".

However, per the diagram referenced, you should make sure you understand the role of the DMSC and how it is currently architected. The SW changes may not be trivial.

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Linux/AM6548: RTOS and Linux simultaneous boot