From: Scott Wood <scottwood@freescale•com>
To: Peter Pan <pppeterpppan@gmail•com>
Cc: linuxppc-dev@lists•ozlabs.org
Subject: Re: How to support scc-enet on MPC8247 in Linux 2.6.32.6
Date: Thu, 22 Apr 2010 12:11:38 -0500 [thread overview]
Message-ID: <4BD0834A.3020508@freescale.com> (raw)
In-Reply-To: <q2g48abf2c21004212341oe37ed471g63c646ae12914ab3@mail.gmail.com>
Peter Pan wrote:
> I'm porting Linux 2.6.32.6 to our MPC8247 based board. We use SCC3 and
> SCC4 as ethernet port. These two ports are connect with LXT905 PHY
> chip.
> I'm now using fs_enet driver, how should I config the scc port in dtc
> file. I copied from mgcoge.dts file, and my dtc file of scc enet is
> follows:
>
> eth2: ethernet@11a40 {
> device_type = "network";
> compatible = "fsl,mpc8247-scc-enet",
> "fsl,cpm2-scc-enet";
> reg = <0x11a40 0x20 0x8200 0x100 0x11390 0x1>;
> local-mac-address = [ 00 00 00 00 00 00 ]; /* filled
> by U-Boot */
> interrupts = <42 8>;
> interrupt-parent = <&PIC>;
> linux,network-index = <0x2>;
> fsl,cpm-command = <0x8c00000>;
> fixed-link = < 0 0 10 0 0 >;
> };
> But i does not working. Linux says that PHY 0:00 is not found. I dive
> into the code, and that's according to the fixed-link property.
> I'm wondering how to support scc-enet in my situation.
Do you really want fixed-link, or does the board have a working MDIO
interface? If the latter, you need a phy-handle property instead,
pointing to a PHY node under an MDIO bus node that represents how MDIO
is wired on your board.
-Scott
next prev parent reply other threads:[~2010-04-22 17:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-22 6:41 How to support scc-enet on MPC8247 in Linux 2.6.32.6 Peter Pan
2010-04-22 17:11 ` Scott Wood [this message]
2010-04-23 1:56 ` Peter Pan
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