Re: [PATCH] DSA support for Micrel KSZ8895

[Maxim Uvarov]

Micrel has some drivers on their web site to support some chips. For
that chips they do virtual mdio over spi.
And driver is available on download page:
http://www.microchip.com/wwwproducts/en/KSZ8895

Documentation->Software library.

Both driver and DSA driver. Driver has to work with some minor fixups
related to your kernel version. But I think they are don't care about
up-streaming that code.
So you can take their code as a reference.

2017-08-28 17:09 GMT+03:00 Andrew Lunn <andrew@xxxxxxx>:
>> I may be confused here, but AFAICT:
>>
>> 1) Yes, it has standard layout when accessed over MDIO.
>
>
> Section 4.8 of the datasheet says:
>
>         All the registers defined in this section can be also accessed
>         via the SPI interface.
>
> Meaning all PHY registers can be access via the SPI interface. So you
> should be able to make a standard Linux MDIO bus driver which performs
> SPI reads.
>
>     Andrew

Micrel has some drivers on their web site to support some chips. For
that chips they do virtual mdio over spi.
And driver is available on download page:
http://www.microchip.com/wwwproducts/en/KSZ8895

Documentation->Software library.

Both driver and DSA driver. Driver has to work with some minor fixups
related to your kernel version. But I think they are don't care about
up-streaming that code.
So you can take their code as a reference.

-- 
Best regards,
Maxim Uvarov