bnx2x: Fix BCM578x0-SFI pre-emphasis settings

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

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index ce0b0c2..1e2fea3 100644 (file)
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -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);