To access i.MX6 ENET_MMFR register after boot Linux kernel.

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To access i.MX6 ENET_MMFR register after boot Linux kernel.

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satoshishimoda
Senior Contributor I

Hi community,

Our partner want to access to i.MX6S ENET_MMFR register to read/write Ethernet PHY after boot kernel.

They have confirmed it is possible by u-boot, but not confirmed after boot kernel (L3.0.35_4.1.0_ER) because don't know how to do it.

Could you let me know whether it is possible and how to do it if they can?

Best Regards,

Satoshi Shimoda

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igorpadykov
NXP Employee
NXP Employee

Hi Satoshi

probably one can use memtool:

Re: Reading IPU registers with memtool hangs.

Attached document sect.34.6 "Using the Memory Access Tool"

shows details.

Best regards

chip

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