Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / phy / ste10Xp.c

diff --git a/kernel/drivers/net/phy/ste10Xp.c b/kernel/drivers/net/phy/ste10Xp.c
new file mode 100644 (file)
index 0000000..3fc199b
--- /dev/null
+++ b/kernel/drivers/net/phy/ste10Xp.c
@@ -0,0 +1,127 @@
+/*
+ * drivers/net/phy/ste10Xp.c
+ *
+ * Driver for STMicroelectronics STe10Xp PHYs
+ *
+ * Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
+ *
+ * Copyright (c) 2008 STMicroelectronics Limited
+ *
+ * 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/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/moduleparam.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/phy.h>
+
+#define MII_XCIIS      0x11    /* Configuration Info IRQ & Status Reg */
+#define MII_XIE        0x12    /* Interrupt Enable Register */
+#define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */
+
+#define STE101P_PHY_ID         0x00061c50
+#define STE100P_PHY_ID         0x1c040011
+
+static int ste10Xp_config_init(struct phy_device *phydev)
+{
+       int value, err;
+
+       /* Software Reset PHY */
+       value = phy_read(phydev, MII_BMCR);
+       if (value < 0)
+               return value;
+
+       value |= BMCR_RESET;
+       err = phy_write(phydev, MII_BMCR, value);
+       if (err < 0)
+               return err;
+
+       do {
+               value = phy_read(phydev, MII_BMCR);
+       } while (value & BMCR_RESET);
+
+       return 0;
+}
+
+static int ste10Xp_config_intr(struct phy_device *phydev)
+{
+       int err, value;
+
+       if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+               /* Enable all STe101P interrupts (PR12) */
+               err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK);
+               /* clear any pending interrupts */
+               if (err == 0) {
+                       value = phy_read(phydev, MII_XCIIS);
+                       if (value < 0)
+                               err = value;
+               }
+       } else
+               err = phy_write(phydev, MII_XIE, 0);
+
+       return err;
+}
+
+static int ste10Xp_ack_interrupt(struct phy_device *phydev)
+{
+       int err = phy_read(phydev, MII_XCIIS);
+       if (err < 0)
+               return err;
+
+       return 0;
+}
+
+static struct phy_driver ste10xp_pdriver[] = {
+{
+       .phy_id = STE101P_PHY_ID,
+       .phy_id_mask = 0xfffffff0,
+       .name = "STe101p",
+       .features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
+       .flags = PHY_HAS_INTERRUPT,
+       .config_init = ste10Xp_config_init,
+       .config_aneg = genphy_config_aneg,
+       .read_status = genphy_read_status,
+       .ack_interrupt = ste10Xp_ack_interrupt,
+       .config_intr = ste10Xp_config_intr,
+       .suspend = genphy_suspend,
+       .resume = genphy_resume,
+       .driver = {.owner = THIS_MODULE,}
+}, {
+       .phy_id = STE100P_PHY_ID,
+       .phy_id_mask = 0xffffffff,
+       .name = "STe100p",
+       .features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
+       .flags = PHY_HAS_INTERRUPT,
+       .config_init = ste10Xp_config_init,
+       .config_aneg = genphy_config_aneg,
+       .read_status = genphy_read_status,
+       .ack_interrupt = ste10Xp_ack_interrupt,
+       .config_intr = ste10Xp_config_intr,
+       .suspend = genphy_suspend,
+       .resume = genphy_resume,
+       .driver = {.owner = THIS_MODULE,}
+} };
+
+module_phy_driver(ste10xp_pdriver);
+
+static struct mdio_device_id __maybe_unused ste10Xp_tbl[] = {
+       { STE101P_PHY_ID, 0xfffffff0 },
+       { STE100P_PHY_ID, 0xffffffff },
+       { }
+};
+
+MODULE_DEVICE_TABLE(mdio, ste10Xp_tbl);
+
+MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
+MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
+MODULE_LICENSE("GPL");