Hi Jerry, Your gonna love this. I was setting the hardware MAC address to be FF:FF:FF:FF:FF:FF. When i changed this everything magically started working. I guess this MAC has some meaning like the device is a router. Anyway, i learned a lot while trying to figure this out. Thanks again!
Alex On Tue, 20 Jan 2009 12:13:52 -0500 Jerry Van Baren <gerald.vanba...@ge.com> wrote: > Loren A. Linden Levy wrote: > > Hi Jerry, > > > > It looks to me like for the M%282 board the PHY address is determined > > by querying the MII interface: > > > > include/configs/M5282EVB.h > > > > #define CONFIG_MCFFEC > > #ifdef CONFIG_MCFFEC > > # define CONFIG_NET_MULTI 1 > > # define CONFIG_MII 1 > > # define CFG_DISCOVER_PHY > > ... > > > > This cause the code in ./drivers/net/mcffec.c specifically > > mii_discover_phy to be run, I tried to enable the debugging in this > > code: > > > > //#undef ET_DEBUG > > //#undef MII_DEBUG > > I am not familiar with the code, but I would change them to #defines > rather than commenting out the #undefs, and look to see where they are > used to see what to expect to be printed out. > > > but it does not seem to print anything (:(). One interesting feature is > > that once my uClinux image has booted I can talk to it over the > > switched network just fin. So the issue is really something in the > > setup of the MII PHY interface in u-boot. Is there any build target to > > allow me to try and debug this? > > I still strongly suspect your hardware initialization isn't right > (again, I'm not familiar with the MPC5282 processor nor your board) or > your PHY is miswired (I'm assuming this is a custom board, not the eval > board). > > You need to verify your hardware is toggling the MII pins on the PHY. > If it isn't, you need to verify your hardware is toggling the MII pins > on the processor. If not, it's likely your software > initialization/driver. If so, you have a hardware problem. > > If the MII pins are not toggling, you are not going to get anywhere. > Until you verify it (hands on, with some sort of hardware probe), you > are shooting in the dark. While you can hit the target in the dark with > enough rounds, the efficiency sucks. > > > Thanks. > > > > Alex > > Good luck, > gvb -- -- --------------------------------------------- Loren A. Linden Levy Department of Physics 390 UCB University of Colorado Boulder, CO 80309-0390 Tel: 303-735-6146 (CU) / +049 040 8998 4789 (DESY) Fax: 303-492-3352 (CU) / +049 040 8998 4034 (DESY) Cell: 303-332-2768 (U.S.) / +049 (0)151 5496 1831 (Germany) Email: loren.lindenl...@colorado.edu url: http://up.colorado.edu/~lindenle _____________________________________________ --------------------------------------------- This email has been cryptographically signed. Search for "lindenle" at pgp.mit.edu to obtain my public key which can be used to verify the authenticity of this message. _____________________________________________ ---------------------------------------------
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