VSC8514 QSGMII PHY requires enabling auto-negotiation,
otherwise it wouldn't work.
Signed-off-by: Shengzhou Liu <shengzhou....@freescale.com>
---
v2: updated copyright year.
drivers/net/phy/vitesse.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 2b29cd8..20a6746 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;
--
2.1.0.27.g96db324
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