netdev - Re: Micrel Phy KSZ8031 clock select setting in dts

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Date:	Mon, 20 Jun 2016 15:12:45 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	netdev@...r.kernel.org, f.fainelli@...il.com, johan@...nel.org,
	bth@...strup.dk
Subject: Re: Micrel Phy KSZ8031 clock select setting in dts

On Mon, Jun 20, 2016 at 03:56:10PM +0300, Sergei Shtylyov wrote:
> Hello.
> 
> On 6/20/2016 3:08 PM, Oliver Graute wrote:
> 
> >thx you both for confirming that. Can you tell me also if the clock
> >statement s fine in my dts?
> >
> >&fec1 {
> >	pinctrl-names = "default";
> >	pinctrl-0 = <&pinctrl_enet1>;
> >	phy-mode = "rmii";
> >	micrel,rmii-reference-clock-select-25-mhz;
> >	clocks,rmii-ref;
> 
>    You need:
> 
> 	clocks = <&your_clock>;
> 	clock-names = "rmii-ref";

With a clock node specified like:

	your_clock: rmii-ref {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <50000000>;
	};

(assuming this is a fixed clock which can't be retrieved from elsewhere
in the clock tree)

Sascha

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