AM623: Secure Boot UART reassignment

Blake Carpenter

Part Number: AM623

Tool/software:

Hi,

My assigned Focus customer asks the following:

I'm currently looking at enabling secure boot on the am62x, and am wondering how to redirect the keywriter R5 SBL and M4 logs to come out on UART3?

Best Regards,

Blake

0 Hong Guan64 1 month ago

Hi Blake,
For AM62x OTP keywiter, R5-SBL is rebuildable so it is possible for customer to configure R5 SBL serial port as needed. But M4 TIFS trace serial port is preconfigured and fixed, it is MAIN_UART1 for AM62x as listed here
https://software-dl.ti.com/tisci/esd/latest/4_trace/trace.html#trace-uart-allocation
Best,
-Hong

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