From: Andrew Lunn <andrew@lunn.ch>
To: Daniele Orlandi <daniele@orlandi.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: DSA incompatible with TI CPSW device model in dual mac mode
Date: Sun, 20 Jan 2019 18:30:47 +0100 [thread overview]
Message-ID: <20190120173047.GA15048@lunn.ch> (raw)
In-Reply-To: <15e21356-0301-62c8-7d8f-0ea9680331f5@orlandi.com>
On Sat, Jan 19, 2019 at 12:09:39AM +0100, Daniele Orlandi wrote:
>
> Hello,
>
> I am trying to connect a Marvell switch (88E6172) to an AM3352 ethernet
> port.
>
> In the DSA devicetree description the CPU port has to have an "ethernet"
> attribute with a reference to a device node. From which it derives the
> net_device with a call of of_find_net_device_by_node
>
> The CPSW driver, however, has a single device node with multiple (two)
> net_devices associated.
>
> Thus, if I reference the "mac" (ethernet@4a100000) node the first (eth0)
> port is matched.
>
> There is no way to actually reference eth1.
Hi Daniele
Looking at Documentation/devicetree/bindings/net/cpsw.txt, your DSA
Ethernet phandle should point to cpsw_emac1: slave@1. I don't know if
this actually works, but i _think_ some people have used DSA with this
device.
Andrew
next prev parent reply other threads:[~2019-01-20 17:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-18 23:09 DSA incompatible with TI CPSW device model in dual mac mode Daniele Orlandi
2019-01-20 17:30 ` Andrew Lunn [this message]
2019-01-21 14:57 ` Daniele Orlandi
2019-01-21 16:55 ` Andrew Lunn
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