This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / drivers / net / phy / vitesse.c

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
new file mode 100644 (file)
index 0000000..792716b
--- /dev/null
+++ b/drivers/net/phy/vitesse.c
@@ -0,0 +1,111 @@
+/*
+ * Driver for Vitesse PHYs
+ *
+ * Author: Kriston Carson
+ *
+ * Copyright (c) 2005 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+
+/* Vitesse Extended Control Register 1 */
+#define MII_VSC8244_EXT_CON1           0x17
+#define MII_VSC8244_EXTCON1_INIT       0x0000
+
+/* Vitesse Interrupt Mask Register */
+#define MII_VSC8244_IMASK              0x19
+#define MII_VSC8244_IMASK_IEN          0x8000
+#define MII_VSC8244_IMASK_SPEED                0x4000
+#define MII_VSC8244_IMASK_LINK         0x2000
+#define MII_VSC8244_IMASK_DUPLEX       0x1000
+#define MII_VSC8244_IMASK_MASK         0xf000
+
+/* Vitesse Interrupt Status Register */
+#define MII_VSC8244_ISTAT              0x1a
+#define MII_VSC8244_ISTAT_STATUS       0x8000
+#define MII_VSC8244_ISTAT_SPEED                0x4000
+#define MII_VSC8244_ISTAT_LINK         0x2000
+#define MII_VSC8244_ISTAT_DUPLEX       0x1000
+
+/* Vitesse Auxiliary Control/Status Register */
+#define MII_VSC8244_AUX_CONSTAT                0x1c
+#define MII_VSC8244_AUXCONSTAT_INIT            0x0004
+#define MII_VSC8244_AUXCONSTAT_DUPLEX          0x0020
+#define MII_VSC8244_AUXCONSTAT_SPEED           0x0018
+#define MII_VSC8244_AUXCONSTAT_GBIT            0x0010
+#define MII_VSC8244_AUXCONSTAT_100             0x0008
+
+MODULE_DESCRIPTION("Vitesse PHY driver");
+MODULE_AUTHOR("Kriston Carson");
+MODULE_LICENSE("GPL");
+
+static int vsc824x_config_init(struct phy_device *phydev)
+{
+       int err;
+
+       err = phy_write(phydev, MII_VSC8244_AUX_CONSTAT,
+                       MII_VSC8244_AUXCONSTAT_INIT);
+       if (err < 0)
+               return err;
+
+       err = phy_write(phydev, MII_VSC8244_EXT_CON1,
+                       MII_VSC8244_EXTCON1_INIT);
+       return err;
+}
+
+static int vsc824x_ack_interrupt(struct phy_device *phydev)
+{
+       int err = phy_read(phydev, MII_VSC8244_ISTAT);
+
+       return (err < 0) ? err : 0;
+}
+
+static int vsc824x_config_intr(struct phy_device *phydev)
+{
+       int err;
+
+       if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+               err = phy_write(phydev, MII_VSC8244_IMASK,
+                               MII_VSC8244_IMASK_MASK);
+       else
+               err = phy_write(phydev, MII_VSC8244_IMASK, 0);
+       return err;
+}
+
+/* Vitesse 824x */
+static struct phy_driver vsc8244_driver = {
+       .phy_id         = 0x000fc6c2,
+       .name           = "Vitesse VSC8244",
+       .phy_id_mask    = 0x000fffc0,
+       .features       = PHY_GBIT_FEATURES,
+       .flags          = PHY_HAS_INTERRUPT,
+       .config_init    = &vsc824x_config_init,
+       .config_aneg    = &genphy_config_aneg,
+       .read_status    = &genphy_read_status,
+       .ack_interrupt  = &vsc824x_ack_interrupt,
+       .config_intr    = &vsc824x_config_intr,
+       .driver         = { .owner = THIS_MODULE,},
+};
+
+static int __init vsc8244_init(void)
+{
+       return phy_driver_register(&vsc8244_driver);
+}
+
+static void __exit vsc8244_exit(void)
+{
+       phy_driver_unregister(&vsc8244_driver);
+}
+
+module_init(vsc8244_init);
+module_exit(vsc8244_exit);