Re: [net-next,PATCH v2] enetc: Increase eMDIO MDC rate to 2.5 MHz

[Jakub Kicinski]

On Wed, 30 Sep 2026 04:21:19 +0200 Marek Vasut wrote:
> On 9/30/26 4:10 AM, patchwork-bot+netdevbpf@xxxxxxxxxx wrote:
> > Hello:
> > 
> > This patch was applied to netdev/net-next.git (main)
> > by Jakub Kicinski <kuba@xxxxxxxxxx>:
> > 
> > On Thu, 24 Sep 2026 20:05:19 +0200 you wrote:  
> >> The current eMDIO MDC rate is 558 kHz on i.MX95 B0. This is very low,
> >> but also very compatible. However, for example NXP TJA1120 PHY needs
> >> at minimum 1 MHz MDC clock and 558 kHz does not work with that PHY.
> >>
> >> As a minimum change, increase the MDC clock to 2.5 MHz which matches
> >> the 802.3 specification. Also, even old PHYs like LAN8210Ai, KSZ8794,
> >> DP83822 support up to 2.5 MHz MDC clock frequency, and it covers the
> >> NXP TJA1120 as well. There is no known rationale for why the 558 kHz
> >> was picked when the eMDIO driver was added.
> >>
> > Here is the summary with links:
> >    - [net-next,v2] enetc: Increase eMDIO MDC rate to 2.5 MHz
> >      https://git.kernel.org/netdev/net-next/c/587acb86d646  
> This should have likely been applied only after someone from NXP looked 
> at it.

Maybe say that in the commit message next time.