linux-kernel - Re: [PATCH] net: dsa: add missing phy address offset

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Date:   Wed, 20 Feb 2019 20:31:22 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Marcel Reichmuth <Marcel.Reichmuth@...module.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "vivien.didelot@...il.com" <vivien.didelot@...il.com>,
        "davem@...emloft.net" <davem@...emloft.net>
Subject: Re: [PATCH] net: dsa: add missing phy address offset

On Wed, Feb 20, 2019 at 11:27:16AM -0800, Florian Fainelli wrote:
> On 2/20/19 10:15 AM, Marcel Reichmuth wrote:
> > When phys do not start at address 0 like on the mv88e6341 the wrong
> > phy address is used and therefore the slave ports can not be
> > initialized. This patch adds the proper offset to the phy address.
> > 
> > Signed-off-by: Marcel Reichmuth <marcel.reichmuth@...module.com>
> 
> You are supposed to describe the port to PHY mapping using the binding,
> so for instance:
> 
> ports {
> 	port@0 {
> 		reg = <0>;
> 		phy-handle = <&phy1>;
> 	};
> 
> };
> 
> mdio {
> 	phy1: phy@1 {
> 		reg = <1>;
> 	};
> };
> 
> etc. is not that working for you?


The Espressobin does exactly this:

arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts 

It also uses the 6341.

	Andrew