Accessing physical registers in A53 using linux commands

subhash_ponnusamy — Wed, 11 Aug 2021 06:42:27 GMT

Hi NXP team,

I'm using I.MX8MMINI EVK for my project. I need to transfer data from M4 to A53 using message unit.

In A53 I need to access a physical register address (0x30AA0010) to see whether I received data or not.

How can I access this register through linux commands.

How should I transfer data from M4 to A53 through messaging unit (MU).

Regards,

Subhash

Re: Accessing physical registers in A53 using linux commands

joanxie — Fri, 13 Aug 2021 04:33:08 GMT

for communication between A core and M core, pls refer to the chapter 2.8 Remote Processor Messaging of linux reference manual, you also can refer to the link as below:

"https://community.nxp.com/t5/i-MX-Processors/Where-is-the-RPMsg-document-for-IMX8MM/m-p/894428"

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Accessing physical registers in A53 using linux commands

Re: Accessing physical registers in A53 using linux commands