Messages in this thread Patch in this message | | | Subject | RE: [patch 1/1] ppc: Possible bug fix for FCC driver | Date | Tue, 6 Mar 2007 10:23:43 +0800 | From | "Li Yang-r58472" <> |
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Hi Cedric,
For ppc embedded related patches, please also cc: linuxppc-embedded@ozlabs.org.
> We use a kernel 2.6.14 on PPC platform (MPC 8555). The FCC driver works
To submit a kernel patch upstream, the patch should be against the latest kernel version which is 2.6.21-rc now. > well with a 100Mbps link. But it doesn't with a 10Mbps link. To solve > it, I modified the GFMR register init: removed TCI bit and set CRC32 bit > instead of.
I don't know how these bits caused the 10M link issue. Do you have any reasoning?
> Signed-off-by: Cedric Pontois <cpontois@nortel.com> > > ------------------------------------------------------------------------ > ----- > > diff -ruN pa-original/arch/ppc/8260_io/fcc_enet.c > pa-patched/arch/ppc/8260_io/fcc_enet.c > --- pa-original/arch/ppc/8260_io/fcc_enet.c 2007-03-02 > 14:57:07.000197000 +0100 > +++ pa-patched/arch/ppc/8260_io/fcc_enet.c 2007-03-02 > 14:57:08.000038000 +0100 > @@ -2232,7 +2232,7 @@ > > /* Set GFMR to enable Ethernet operating mode. > */ > - fccp->fcc_gfmr = (FCC_GFMR_TCI | FCC_GFMR_MODE_ENET); > + fccp->fcc_gfmr = (FCC_GFMR_TCRC_32 | FCC_GFMR_MODE_ENET); > > /* Set sync/delimiters. > */ >
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