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Giuseppe Cavallaro
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David S. Miller
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Nov 29, 2008
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refs/heads/master: 4621bf129856bad902d7662053b79faaeb3e66cc | ||
refs/heads/master: f95be1806fde884c1655237d49a7e5f82e4a935f |
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/* | ||
* 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. | ||
* | ||
*/ | ||
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#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> | ||
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#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 */ | ||
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#define STE101P_PHY_ID 0x00061c50 | ||
#define STE100P_PHY_ID 0x1c040011 | ||
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static int ste10Xp_config_init(struct phy_device *phydev) | ||
{ | ||
int value, err; | ||
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/* Software Reset PHY */ | ||
value = phy_read(phydev, MII_BMCR); | ||
if (value < 0) | ||
return value; | ||
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value |= BMCR_RESET; | ||
err = phy_write(phydev, MII_BMCR, value); | ||
if (err < 0) | ||
return err; | ||
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do { | ||
value = phy_read(phydev, MII_BMCR); | ||
} while (value & BMCR_RESET); | ||
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return 0; | ||
} | ||
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static int ste10Xp_config_intr(struct phy_device *phydev) | ||
{ | ||
int err, value; | ||
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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); | ||
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return err; | ||
} | ||
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static int ste10Xp_ack_interrupt(struct phy_device *phydev) | ||
{ | ||
int err = phy_read(phydev, MII_XCIIS); | ||
if (err < 0) | ||
return err; | ||
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return 0; | ||
} | ||
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static struct phy_driver ste101p_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,} | ||
}; | ||
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static struct phy_driver ste100p_pdriver = { | ||
.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,} | ||
}; | ||
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static int __init ste10Xp_init(void) | ||
{ | ||
int retval; | ||
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retval = phy_driver_register(&ste100p_pdriver); | ||
if (retval < 0) | ||
return retval; | ||
return phy_driver_register(&ste101p_pdriver); | ||
} | ||
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static void __exit ste10Xp_exit(void) | ||
{ | ||
phy_driver_unregister(&ste100p_pdriver); | ||
phy_driver_unregister(&ste101p_pdriver); | ||
} | ||
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module_init(ste10Xp_init); | ||
module_exit(ste10Xp_exit); | ||
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MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver"); | ||
MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>"); | ||
MODULE_LICENSE("GPL"); |