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Commit 25182fc2 authored by Yaniv Rosner's avatar Yaniv Rosner Committed by David S. Miller
Browse files

bnx2x: Fix BCM578x0-SFI pre-emphasis settings 



Fix 578x0-SFI pre-emphasis settings per HW recommendations to achieve better
link strength.

Signed-off-by: default avatarYaniv Rosner <yanivr@broadcom.com>
Signed-off-by: default avatarEilon Greenstein <eilong@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6a51c0d1

drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c

+5 −5
Original line number Diff line number Diff line
@@ -3994,13 +3994,13 @@ static void bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy *phy, 


	} else {

		misc1_val |= 0x9;

		tap_val = ((0x12 << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) |

			   (0x2d << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) |

			   (0x00 << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET));

		tap_val = ((0x0f << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) |

			   (0x2b << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) |

			   (0x02 << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET));

		tx_driver_val =

		      ((0x02 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) |

		      ((0x03 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) |

		       (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) |

		       (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET));

		       (0x06 << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET));

	}

	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,

			 MDIO_WC_REG_SERDESDIGITAL_MISC1, misc1_val);