Re: [RFC PATCH v2 net-next 0/8] Add support for VSC7511-7514 chips over SPI

[Alexandre Belloni]

On 10/07/2021 12:25:54-0700, Colin Foster wrote:
> Add support for configuration and control of the VSC7511, VSC7512, VSC7513, and
> VSC7514 chips over a SPI interface. The intent is to control these chips from an
> external CPU. The expectation is to have most of the features of the
> net/ethernet/mscc/ocelot_vsc7514 driver.
> 
> I have tried to heed all the advice from my first patch RFC. Thanks to everyone
> for all the feedback.
> 
> The current status is that there are two functional "bugs" that need
> investigation:
> 1. The first probe of the internal MDIO bus fails. I suspect this is related to
> power supplies / grounding issues that would not appear on standard hardware.

Did you properly reset the internal phys? mdio-mscc-miim.c does that.

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com