linux-kernel - Re: [PATCH v2] tg3: optionally get mac address from devicetree

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Message-ID: <20181115200018.GC32274@lunn.ch>
Date:   Thu, 15 Nov 2018 21:00:18 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     thesven73@...il.com
Cc:     svendev@...x.com, siva.kallam@...adcom.com, prashant@...adcom.com,
        mchan@...adcom.com, davem@...emloft.net,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org, arnd@...db.de
Subject: Re: [PATCH v2] tg3: optionally get mac address from devicetree

On Wed, Nov 14, 2018 at 08:52:01AM -0500, thesven73@...il.com wrote:
> If the tg3 has a device node, and that node contains a valid
> mac address property, use that as the tg3's mac address.
> 
> This behaviour was previously only present on SPARC, using a
> conditional compile (#ifdef CONFIG_SPARC), presumably because
> at the time, devicetree nodes for pci devices only worked on
> SPARC. However, this has recently been made universal, see
> commit 98d9f30c820d ("pci/of: Match PCI devices to OF nodes dynamically")
> 
> Devicetree example:
> (see Documentation/devicetree/bindings/pci/pci.txt)
> 
> &pcie {
> 	host@0 {
> 		#address-cells = <3>;
> 		#size-cells = <2>;
> 		reg = <0 0 0 0 0>;
> 		bcm5778: bcm5778@0 {
> 			reg = <0 0 0 0 0>;
> 			mac-address = [CA 11 AB 1E 10 01];
> 		};
> 	};
> };
> 
> Signed-off-by: Sven Van Asbroeck <svendev@...x.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew