How to get "number of core" information from hardware registers for iMX8M?

[harrytan]

Hi,

Is there a way to know the "number of core" information from the hardware register for the iMX8M family processor? This hardware register has to be memory-mapped so I can access it from the software layer.

Also, what are the functions of the registers between 2800_0000 to 28FF_FFFF (A53/DAP)?

[igorpadykov]

Hi Harry

one can use fuse NUM_A53_CORES in Table 6-45. Fusemap Descriptions

i.MX8MDQ Reference Manual (rev.0  1/2018)
https://www.nxp.com/docs/en/reference-manual/IMX8MDQLQRM.pdf

and use arm A53 core documentation

Documentation – Arm Developer 

Best regards
igor
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