[patch 1/1] ppc: Possible bug fix for FCC driver

From: Cedric Pontois
Date: Mon Mar 05 2007 - 05:32:10 EST


From: Cedric Pontois <cpontois@xxxxxxxxxx>

We use a kernel 2.6.14 on PPC platform (MPC 8555). The FCC driver works
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.

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Signed-off-by: Cedric Pontois <cpontois@xxxxxxxxxx>

------------------------------------------------------------------------
-----

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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