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Has anyone the DP83848T PHY running with the dp83848.c driver?
The driver registers an Interrupt and reads/writes to the reserved interrupt registers... (0x11, 0x12/MICR, MISR). So that can not work at all, since MICR, MISR are not present on the T version
I've DP83848T PHY running with the "Generic PHY" driver in linux 5.10.
@ TI, you might want to double check that and update the compatibility list.... (www.ti.com/.../ETHERNET-SW)
Hi Martin,
We are looking into your question and will be able to provide feedback by Thursday of this week.
Thank you,
Nikhil
All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and it is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).
Hi Martin,
We are investigating this disconnect between driver and datasheet. As these registers are reserved in datasheet, you may comment out the writes to these registers in the firmware for now. I will update you as soon as I have more information.
Thank you,
Nikhil
All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and it is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).
Hi Nikhil,
Thank you for the Investigation.
As I wrote the DP83848T runs with the generic driver. But I realized, that we loose a lot of packages. (But this can also be related to the PCB/Hardware or the MAC)
Thanks
Martin
Hi Martin,
Thanks for the update. we can continue to investigate from a hardware or MAC perspective. Are you able to share a schematic for review?
Thank you,
Nikhil
All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and it is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).
Hi Nikhil,
We resolved a hardware Issue, we messed up with the RMII 50MHz Clock.
So I've the PHY working with the "Generic PHY" driver in Linux
Does TI recommend that, do you see any drawbacks?
Hi Martin,
I'm glad to hear the issue has been resolved! There should be no drawbacks to using the Generic PHY Linux driver.
If you have any further questions, please feel free to reach out. Else, I will close this thread.
Thank you,
Nikhil
All information in this correspondence and in any related correspondence is provided “as is” and “with all faults”, and it is subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).