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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>
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@ -968,6 +968,9 @@ static void __gfar_detect_errata_85xx(struct gfar_private *priv)
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if ((SVR_SOC_VER(svr) == SVR_8548) && (SVR_REV(svr) == 0x20))
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priv->errata |= GFAR_ERRATA_12;
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if (((SVR_SOC_VER(svr) == SVR_P2020) && (SVR_REV(svr) < 0x20)) ||
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((SVR_SOC_VER(svr) == SVR_P2010) && (SVR_REV(svr) < 0x20)))
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priv->errata |= GFAR_ERRATA_76; /* aka eTSEC 20 */
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}
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static void gfar_detect_errata(struct gfar_private *priv)
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