2 * drivers/net/phy/ste10Xp.c
4 * Driver for STMicroelectronics STe10Xp PHYs
6 * Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
8 * Copyright (c) 2008 STMicroelectronics Limited
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/sched.h>
20 #include <linux/kernel.h>
21 #include <linux/moduleparam.h>
22 #include <linux/interrupt.h>
23 #include <linux/netdevice.h>
24 #include <linux/ethtool.h>
25 #include <linux/mii.h>
26 #include <linux/phy.h>
28 #define MII_XCIIS 0x11 /* Configuration Info IRQ & Status Reg */
29 #define MII_XIE 0x12 /* Interrupt Enable Register */
30 #define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */
32 #define STE101P_PHY_ID 0x00061c50
33 #define STE100P_PHY_ID 0x1c040011
35 static int ste10Xp_config_init(struct phy_device *phydev)
39 /* Software Reset PHY */
40 value = phy_read(phydev, MII_BMCR);
45 err = phy_write(phydev, MII_BMCR, value);
50 value = phy_read(phydev, MII_BMCR);
51 } while (value & BMCR_RESET);
56 static int ste10Xp_config_intr(struct phy_device *phydev)
60 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
61 /* Enable all STe101P interrupts (PR12) */
62 err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK);
63 /* clear any pending interrupts */
65 value = phy_read(phydev, MII_XCIIS);
70 err = phy_write(phydev, MII_XIE, 0);
75 static int ste10Xp_ack_interrupt(struct phy_device *phydev)
77 int err = phy_read(phydev, MII_XCIIS);
84 static struct phy_driver ste10xp_pdriver[] = {
86 .phy_id = STE101P_PHY_ID,
87 .phy_id_mask = 0xfffffff0,
89 .features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
90 .flags = PHY_HAS_INTERRUPT,
91 .config_init = ste10Xp_config_init,
92 .ack_interrupt = ste10Xp_ack_interrupt,
93 .config_intr = ste10Xp_config_intr,
94 .suspend = genphy_suspend,
95 .resume = genphy_resume,
97 .phy_id = STE100P_PHY_ID,
98 .phy_id_mask = 0xffffffff,
100 .features = PHY_BASIC_FEATURES | SUPPORTED_Pause,
101 .flags = PHY_HAS_INTERRUPT,
102 .config_init = ste10Xp_config_init,
103 .ack_interrupt = ste10Xp_ack_interrupt,
104 .config_intr = ste10Xp_config_intr,
105 .suspend = genphy_suspend,
106 .resume = genphy_resume,
109 module_phy_driver(ste10xp_pdriver);
111 static struct mdio_device_id __maybe_unused ste10Xp_tbl[] = {
112 { STE101P_PHY_ID, 0xfffffff0 },
113 { STE100P_PHY_ID, 0xffffffff },
117 MODULE_DEVICE_TABLE(mdio, ste10Xp_tbl);
119 MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
120 MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
121 MODULE_LICENSE("GPL");