Re: [PATCH net-next v7 2/7] net: pcs: xpcs: re-initiate clause 37 Auto-negotiation

Choong Yong Liang
2025-02-08T03:33:49Z

On 7/2/2025 9:32 pm, Andrew Lunn wrote:
>> Good point. I cannot find this scenario in the datasheet. Please allow me
>> some time to test this scenario. I will update you with the results.
>
> By data sheet, do you mean documentation from Synopsis, or is this an
> internal document? Assuming the hardware engineers have not hacked up
> the Synopsis IP too much, the Synopsis documentation is probably the
> most accurate you have.
>
>>> What about 1000BASE-X when AN is enabled or disabled and then switching
>>> to SGMII?
>>>
>> According to the datasheet, a soft reset is required.
>
> Do you know if this is specific to Intels integration of the Synopsis
> IP, or this is part of the core licensed IP?
>
> We need to understand when we need a quirk because intel did something
> odd, or it is part of the licensed IP and should happen for all
> devices using the IP.
>
> Andrew
>

Hi Andrew,

Thank you for your questions. Just to clarify, when I mention the
"datasheet," I am referring to the documentation from "Synopsis -
DesignWare Cores Ethernet PCS" and not specific to Intel's documentation.