gianfar: Enable eTSEC-20 erratum w/a for P2020 Rev1

[firefly-linux-kernel-4.4.55.git] / drivers / net / ethernet / freescale / gianfar.c

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 329a206267212b894fb1a4876d36db947d2d96bc..9fbe4dda7a0e4d68d6bee463fbc6e0a18fa8c061 100644 (file)
--- 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)