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
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -3994,13 +3994,13 @@
} 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);