diff options
| author | Shengzhou Liu <Shengzhou.Liu@freescale.com> | 2014-11-24 17:11:59 +0800 |
|---|---|---|
| committer | York Sun <yorksun@freescale.com> | 2014-12-05 08:06:15 -0800 |
| commit | c18fc2c960708d85e5ef77fe7c5eead7d41d2231 (patch) | |
| tree | 2ea98429b40347aa06825001308420c6cc69c8d7 | |
| parent | 355b3858471de1d3c7149a76f4ddd4ea78b9436d (diff) | |
net/phy: enable serdes auto-negotiation for vsc8514 phy
VSC8514 QSGMII PHY requires enabling auto-negotiation,
otherwise it wouldn't work.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
| -rw-r--r-- | drivers/net/phy/vitesse.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c index 2b29cd89f8..20a67466a7 100644 --- a/drivers/net/phy/vitesse.c +++ b/drivers/net/phy/vitesse.c @@ -1,8 +1,8 @@ /* * Vitesse PHY drivers * - * Copyright 2010-2012 Freescale Semiconductor, Inc. - * Author: Andy Fleming + * Copyright 2010-2014 Freescale Semiconductor, Inc. + * Original Author: Andy Fleming * Add vsc8662 phy support - Priyanka Jain * SPDX-License-Identifier: GPL-2.0+ */ @@ -50,6 +50,7 @@ #define MIIM_VSC8574_18G_CMDSTAT 0x8000 /* Vitesse VSC8514 control register */ +#define MIIM_VSC8514_MAC_SERDES_CON 0x10 #define MIIM_VSC8514_GENERAL18 0x12 #define MIIM_VSC8514_GENERAL19 0x13 #define MIIM_VSC8514_GENERAL23 0x17 @@ -246,6 +247,14 @@ static int vsc8514_config(struct phy_device *phydev) val = (val & 0xf8ff); phy_write(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_GENERAL23, val); + /* Enable Serdes Auto-negotiation */ + phy_write(phydev, MDIO_DEVAD_NONE, PHY_EXT_PAGE_ACCESS, + PHY_EXT_PAGE_ACCESS_EXTENDED3); + val = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_MAC_SERDES_CON); + val = val | MIIM_VSC8574_MAC_SERDES_ANEG; + phy_write(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_MAC_SERDES_CON, val); + phy_write(phydev, MDIO_DEVAD_NONE, PHY_EXT_PAGE_ACCESS, 0); + genphy_config_aneg(phydev); return 0; |