net: phy/vitesse: Add support for VSC8514 phy module

This patch adds support for VSC8514 PHY module which can be
found on Freescale's T1040RDB boards.

Signed-off-by: Arpit Goel <B44344@freescale.com>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 5cf103e5a1a0fe7b282c3110d162c7cce25640ba..c555979661189e1e9cb41cad038e263dea13391c 100644 (file)
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -49,6 +49,15 @@
 #define MIIM_VSC8574_18G_QSGMII                0x80e0
 #define MIIM_VSC8574_18G_CMDSTAT       0x8000
 
+/* Vitesse VSC8514 control register */
+#define MIIM_VSC8514_GENERAL18         0x12
+#define MIIM_VSC8514_GENERAL19         0x13
+#define MIIM_VSC8514_GENERAL23         0x17
+
+/* Vitesse VSC8514 gerenal purpose register 18 */
+#define MIIM_VSC8514_18G_QSGMII                0x80e0
+#define MIIM_VSC8514_18G_CMDSTAT       0x8000
+
 /* CIS8201 */
 static int vitesse_config(struct phy_device *phydev)
 {
@@ -148,7 +157,7 @@ static int vsc8601_config(struct phy_device *phydev)
 static int vsc8574_config(struct phy_device *phydev)
 {
        u32 val;
-       /* configure regiser 19G for MAC */
+       /* configure register 19G for MAC */
        phy_write(phydev, MDIO_DEVAD_NONE, PHY_EXT_PAGE_ACCESS,
                  PHY_EXT_PAGE_ACCESS_GENERAL);
 
@@ -188,6 +197,53 @@ static int vsc8574_config(struct phy_device *phydev)
        return 0;
 }
 
+static int vsc8514_config(struct phy_device *phydev)
+{
+       u32 val;
+       int timeout = 1000000;
+
+       /* configure register to access 19G */
+       phy_write(phydev, MDIO_DEVAD_NONE, PHY_EXT_PAGE_ACCESS,
+                 PHY_EXT_PAGE_ACCESS_GENERAL);
+
+       val = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_GENERAL19);
+       if (phydev->interface == PHY_INTERFACE_MODE_QSGMII) {
+               /* set bit 15:14 to '01' for QSGMII mode */
+               val = (val & 0x3fff) | (1 << 14);
+               phy_write(phydev, MDIO_DEVAD_NONE,
+                         MIIM_VSC8514_GENERAL19, val);
+               /* Enable 4 ports MAC QSGMII */
+               phy_write(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_GENERAL18,
+                         MIIM_VSC8514_18G_QSGMII);
+       } else {
+               /*TODO Add SGMII functionality once spec sheet
+                * for VSC8514 defines complete functionality
+                */
+       }
+
+       val = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_GENERAL18);
+       /* When bit 15 is cleared the command has completed */
+       while ((val & MIIM_VSC8514_18G_CMDSTAT) && timeout--)
+               val = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_GENERAL18);
+
+       if (0 == timeout) {
+               printf("PHY 8514 config failed\n");
+               return -1;
+       }
+
+       phy_write(phydev, MDIO_DEVAD_NONE, PHY_EXT_PAGE_ACCESS, 0);
+
+       /* configure register to access 23 */
+       val = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_GENERAL23);
+       /* set bits 10:8 to '000' */
+       val = (val & 0xf8ff);
+       phy_write(phydev, MDIO_DEVAD_NONE, MIIM_VSC8514_GENERAL23, val);
+
+       genphy_config_aneg(phydev);
+
+       return 0;
+}
+
 static struct phy_driver VSC8211_driver = {
        .name   = "Vitesse VSC8211",
        .uid    = 0xfc4b0,
@@ -238,6 +294,16 @@ static struct phy_driver VSC8574_driver = {
        .shutdown = &genphy_shutdown,
 };
 
+static struct phy_driver VSC8514_driver = {
+       .name = "Vitesse VSC8514",
+       .uid = 0x70570,
+       .mask = 0xffff0,
+       .features = PHY_GBIT_FEATURES,
+       .config = &vsc8514_config,
+       .startup = &vitesse_startup,
+       .shutdown = &genphy_shutdown,
+};
+
 static struct phy_driver VSC8601_driver = {
        .name = "Vitesse VSC8601",
        .uid = 0x70420,
@@ -298,6 +364,7 @@ int phy_vitesse_init(void)
        phy_register(&VSC8211_driver);
        phy_register(&VSC8221_driver);
        phy_register(&VSC8574_driver);
+       phy_register(&VSC8514_driver);
        phy_register(&VSC8662_driver);
        phy_register(&cis8201_driver);
        phy_register(&cis8204_driver);