AM625: SDK 08: Low frequency boot crashes during Linux boot

Hi Jonathan,

Thanks for sharing the issue report. You might have shared it with other TI folks, but this is the first time I am seeing it. 

The report is very detailed, I can see you have done very diligent debug on this issue. I am also very interested in understanding what change in the firmware resolves the issue. But let me spend more time to review the report again tomorrow, and your original E2E post as well, I will have some questions for you to clarify.

Hi Jonathan,

We have been focusing on the thread below, but I think we want to circle back to this thread before I am taking time off for the holidays.

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1298528/am625-sdk-08-linux-boot-crashes-related-to-running-processor-with-only-2-cores

You probably already know the SYSFW, provided in ti-linux-firmware package, plays a very important role in the AM62x system, it manages all the resources, including, but not limited to, memory access management, firewall configuration, PLL/clock configuration, module power domain and reset management, etc... so any resource misconfiguration in the SYSFW or miscommunication between SYSFW and kernel would cause system hang or crash.

I am not sure if you are looking for deeper information than the summary above?

Hi Bin, I was specifically looking for why changing from the 08.06 sysfw to the 09.01.00.003 might fix the issues we were seeing.  Is there a change in the code that fixed something?

Hi Jonathan,

I don't have directly access to the SYSFW repo, and I will be out of office from tomorrow for the rest of 2023. Please let me try to get the code change git log after the New Year once I am back in office.