netdev - Re: [PATCH] net: phy: micrel: workaround for errata #2 for KSZ9031

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Message-ID: <e7952210-b57a-a6d0-afaf-b4a3f95e0f2e@cogentembedded.com>
Date:   Mon, 14 May 2018 12:42:58 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Marco Felsch <m.felsch@...gutronix.de>, robh+dt@...nel.org,
        mark.rutland@....com, andrew@...n.ch, f.fainelli@...il.com
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        kernel@...gutronix.de, Markus Niebel <Markus.Niebel@....de>
Subject: Re: [PATCH] net: phy: micrel: workaround for errata #2 for KSZ9031

On 5/14/2018 11:22 AM, Marco Felsch wrote:

> From: Markus Niebel <Markus.Niebel@....de>
> 
> handle errata #2 for KSZ9031: force 1000Base-T master
> 
> Attention: enabling the workaround will cause no link to
> other GIGE master.
> 
> Signed-off-by: Markus Niebel <Markus.Niebel@....de>
> [m.felsch@...gutronix.de: move dt binding to the KSZ9031 entry]
> Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
> ---
>   .../devicetree/bindings/net/micrel-ksz90x1.txt |  3 +++
>   drivers/net/phy/micrel.c                       | 18 ++++++++++++++++++
>   2 files changed, 21 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
> index 42a248301615..e2465fbbbcef 100644
> --- a/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
> +++ b/Documentation/devicetree/bindings/net/micrel-ksz90x1.txt
> @@ -57,6 +57,9 @@ KSZ9031:
>         - txd2-skew-ps : Skew control of TX data 2 pad
>         - txd3-skew-ps : Skew control of TX data 3 pad
>   
> +    - force-master: Boolean, force phy to master mode. This is a

    Not "micrel,force-master"?

> +                    workaround at least for KSZ9031 errata #2.
> +
>   Examples:
>   
>   	mdio {
[...]

MBR, Sergei