diff options
| author | Claudiu Manoil <claudiu.manoil@freescale.com> | 2013-10-09 20:20:42 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-09 14:02:02 -0400 |
| commit | 53fad77375ce1005cb62105bf63265966a28bca3 (patch) | |
| tree | c377c7472682034a1b9e5e5a142acecc9eba8fdc /drivers | |
| parent | 2969b1f7259179b6810b02aa6770c8765d9674ad (diff) | |
| download | linux-53fad77375ce1005cb62105bf63265966a28bca3.tar.bz2 | |
gianfar: Enable eTSEC-20 erratum w/a for P2020 Rev1
Enable workaround for P2020/P2010 erratum eTSEC 20,
"Excess delays when transmitting TOE=1 large frames".
The impact is that frames lager than 2500-bytes for which
TOE (i.e. TCP/IP hw accelerations like Tx csum) is enabled
may see excess delay before start of transmission.
This erratum was fixed in Rev 2.0.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 329a20626721..9fbe4dda7a0e 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -968,6 +968,9 @@ static void __gfar_detect_errata_85xx(struct gfar_private *priv) if ((SVR_SOC_VER(svr) == SVR_8548) && (SVR_REV(svr) == 0x20)) priv->errata |= GFAR_ERRATA_12; + if (((SVR_SOC_VER(svr) == SVR_P2020) && (SVR_REV(svr) < 0x20)) || + ((SVR_SOC_VER(svr) == SVR_P2010) && (SVR_REV(svr) < 0x20))) + priv->errata |= GFAR_ERRATA_76; /* aka eTSEC 20 */ } static void gfar_detect_errata(struct gfar_private *priv) |