DP83869HM: DP83869HM linux driver for 4.14 version causing oops

Nagesh Sonwane

Part Number: DP83869HM
Other Parts Discussed in Thread: DP83869

Hi,

We got the board now with DP83869 connected phy. We integrated the driver code provided for 4.14 kernel version. The driver is giving oops error. I added aneg ( auto negotiation function ) to generic phy auto negotiation function but got the anogher oops.

Attaching the snapshot.

Kindly suggest.

over 3 years ago

0 Nikhil Menon over 3 years ago

TI__Genius 11725 points

Hi Nagesh,

We are looking into this issue and will provide feedback by Thursday this week.

Thank you,

Nikhil

0 Nikhil Menon over 3 years ago in reply to Nikhil Menon

TI__Genius 11725 points

Hi Nagesh,

I have reached out to our driver team and will provide an update by early next week.

Thank you,

Nikhil

0 Nikhil Menon over 3 years ago in reply to Nikhil Menon

TI__Genius 11725 points

Hi Nagesh,

Where have you downloaded this driver from?

Thank you,

Nikhil

0 Nagesh Sonwane over 3 years ago in reply to Nikhil Menon

Prodigy 80 points

Hi Nikhil,

I got the driver from TI only with different ticket. Please find following.

Justin Lazaruk replied to DP83869HM: Mirror mode operation.

Hi Nagesh,

I've attached the compile tested DP83869 driver backported for kernel v4.14. Please note we only compile test the backported drivers and do not perform functional tests before sharing them.

Regards,
Justin http://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/138/drivers_5F00_net_5F00_phy_5F00_dp83869.c

Regards,

Nagesh

0 Nikhil Menon over 3 years ago in reply to Nagesh Sonwane

TI__Genius 11725 points

Hi Nagesh,

It seems that when this error occurs it means the PHY lost MDIO access somehow either from being held low in reset or just powered off. Can you provide a schematic?

Thank you,

Nikhil

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DP83869HM: DP83869HM linux driver for 4.14 version causing oops