linux-kernel - Re: [PATCH 2/3] net/fec: add device tree support

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Message-ID: <20110619075552.GE23171@S2100-06.ap.freescale.net>
Date:	Sun, 19 Jun 2011 15:55:53 +0800
From:	Shawn Guo <shawn.guo@...escale.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	Shawn Guo <shawn.guo@...aro.org>, <patches@...aro.org>,
	<netdev@...r.kernel.org>, <devicetree-discuss@...ts.ozlabs.org>,
	Jason Liu <jason.hui@...aro.org>,
	<linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH 2/3] net/fec: add device tree support

On Sat, Jun 18, 2011 at 08:27:22PM +0200, Arnd Bergmann wrote:
> On Saturday 18 June 2011 17:19:13 Shawn Guo wrote:
> > diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt
> > new file mode 100644
> > index 0000000..705111d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/fsl-fec.txt
> > @@ -0,0 +1,14 @@
> > +* Freescale Fast Ethernet Controller (FEC)
> > +
> > +Required properties:
> > +- compatible : should be "fsl,<soc>-fec", "fsl,fec"
> > +- reg : address and length of the register set for the device
> > +- interrupts : should contain fec interrupt
> > +
> > +Example:
> > +
> > +fec@...ec000 {
> > +	compatible = "fsl,imx51-fec", "fsl,fec";
> > +	reg = <0x83fec000 0x4000>;
> > +	interrupts = <87>;
> > +};
> 
> How about also adding device_type="network" as required here, so you
> inherit the attributes like "local-mac-address".
> 
> I would also suggest adding a call to of_get_mac_address() so you
> can read the address out of the device tree when it is not configured
> in hardware. Today, the driver relies on a module parameter or
> platform_data on hardware with a mac address set.
> 
> The other information that is currently encoded in platform_data
> is the phy mode. How about adding a property that enables RMII mode
> when present?
> 
Ah, yes.  I missed that.  Will add support for local-mac-address and
phy-mode.  Thanks, Arnd.

-- 
Regards,
Shawn

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