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Date: Sun, 20 Jan 2019 18:30:47 +0100 From: Andrew Lunn <andrew@...n.ch> To: Daniele Orlandi <daniele@...andi.com> Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: Re: DSA incompatible with TI CPSW device model in dual mac mode 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@...00000) 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
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