Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / phy / cicada.c

diff --git a/kernel/drivers/net/phy/cicada.c b/kernel/drivers/net/phy/cicada.c
new file mode 100644 (file)
index 0000000..27f5464
--- /dev/null
+++ b/kernel/drivers/net/phy/cicada.c
@@ -0,0 +1,140 @@
+/*
+ * drivers/net/phy/cicada.c
+ *
+ * Driver for Cicada PHYs
+ *
+ * Author: Andy Fleming
+ *
+ * Copyright (c) 2004 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/string.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+
+#include <linux/io.h>
+#include <asm/irq.h>
+#include <linux/uaccess.h>
+
+/* Cicada Extended Control Register 1 */
+#define MII_CIS8201_EXT_CON1           0x17
+#define MII_CIS8201_EXTCON1_INIT       0x0000
+
+/* Cicada Interrupt Mask Register */
+#define MII_CIS8201_IMASK              0x19
+#define MII_CIS8201_IMASK_IEN          0x8000
+#define MII_CIS8201_IMASK_SPEED        0x4000
+#define MII_CIS8201_IMASK_LINK         0x2000
+#define MII_CIS8201_IMASK_DUPLEX       0x1000
+#define MII_CIS8201_IMASK_MASK         0xf000
+
+/* Cicada Interrupt Status Register */
+#define MII_CIS8201_ISTAT              0x1a
+#define MII_CIS8201_ISTAT_STATUS       0x8000
+#define MII_CIS8201_ISTAT_SPEED        0x4000
+#define MII_CIS8201_ISTAT_LINK         0x2000
+#define MII_CIS8201_ISTAT_DUPLEX       0x1000
+
+/* Cicada Auxiliary Control/Status Register */
+#define MII_CIS8201_AUX_CONSTAT        0x1c
+#define MII_CIS8201_AUXCONSTAT_INIT    0x0004
+#define MII_CIS8201_AUXCONSTAT_DUPLEX  0x0020
+#define MII_CIS8201_AUXCONSTAT_SPEED   0x0018
+#define MII_CIS8201_AUXCONSTAT_GBIT    0x0010
+#define MII_CIS8201_AUXCONSTAT_100     0x0008
+
+MODULE_DESCRIPTION("Cicadia PHY driver");
+MODULE_AUTHOR("Andy Fleming");
+MODULE_LICENSE("GPL");
+
+static int cis820x_config_init(struct phy_device *phydev)
+{
+       int err;
+
+       err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT,
+                       MII_CIS8201_AUXCONSTAT_INIT);
+
+       if (err < 0)
+               return err;
+
+       err = phy_write(phydev, MII_CIS8201_EXT_CON1,
+                       MII_CIS8201_EXTCON1_INIT);
+
+       return err;
+}
+
+static int cis820x_ack_interrupt(struct phy_device *phydev)
+{
+       int err = phy_read(phydev, MII_CIS8201_ISTAT);
+
+       return (err < 0) ? err : 0;
+}
+
+static int cis820x_config_intr(struct phy_device *phydev)
+{
+       int err;
+
+       if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+               err = phy_write(phydev, MII_CIS8201_IMASK,
+                               MII_CIS8201_IMASK_MASK);
+       else
+               err = phy_write(phydev, MII_CIS8201_IMASK, 0);
+
+       return err;
+}
+
+/* Cicada 8201, a.k.a Vitesse VSC8201 */
+static struct phy_driver cis820x_driver[] = {
+{
+       .phy_id         = 0x000fc410,
+       .name           = "Cicada Cis8201",
+       .phy_id_mask    = 0x000ffff0,
+       .features       = PHY_GBIT_FEATURES,
+       .flags          = PHY_HAS_INTERRUPT,
+       .config_init    = &cis820x_config_init,
+       .config_aneg    = &genphy_config_aneg,
+       .read_status    = &genphy_read_status,
+       .ack_interrupt  = &cis820x_ack_interrupt,
+       .config_intr    = &cis820x_config_intr,
+       .driver         = { .owner = THIS_MODULE,},
+}, {
+       .phy_id         = 0x000fc440,
+       .name           = "Cicada Cis8204",
+       .phy_id_mask    = 0x000fffc0,
+       .features       = PHY_GBIT_FEATURES,
+       .flags          = PHY_HAS_INTERRUPT,
+       .config_init    = &cis820x_config_init,
+       .config_aneg    = &genphy_config_aneg,
+       .read_status    = &genphy_read_status,
+       .ack_interrupt  = &cis820x_ack_interrupt,
+       .config_intr    = &cis820x_config_intr,
+       .driver         = { .owner = THIS_MODULE,},
+} };
+
+module_phy_driver(cis820x_driver);
+
+static struct mdio_device_id __maybe_unused cicada_tbl[] = {
+       { 0x000fc410, 0x000ffff0 },
+       { 0x000fc440, 0x000fffc0 },
+       { }
+};
+
+MODULE_DEVICE_TABLE(mdio, cicada_tbl);