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Commit f95be180 authored by Giuseppe Cavallaro's avatar Giuseppe Cavallaro Committed by David S. Miller
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phy: add the ST ste10Xp PHYs 



This patch adds the STMicroelectronics ste10xp PHY device driver.
It supports both the ste100p and the ste101p devices.

Suspend/resume alredy added.

Signed-off-by: default avatarGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4621bf12

drivers/net/phy/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -71,6 +71,12 @@ config NATIONAL_PHY 
	---help---

	  Currently supports the DP83865 PHY.



config STE10XP

	depends on PHYLIB

	tristate "Driver for STMicroelectronics STe10Xp PHYs"

	---help---

	  This is the driver for the STe100p and STe101p PHYs.



config FIXED_PHY

	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"

	depends on PHYLIB=y

drivers/net/phy/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -17,3 +17,4 @@ obj-$(CONFIG_FIXED_PHY) += fixed.o 
obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o

obj-$(CONFIG_MDIO_GPIO)		+= mdio-gpio.o

obj-$(CONFIG_NATIONAL_PHY)	+= national.o

obj-$(CONFIG_STE10XP)		+= ste10Xp.o

drivers/net/phy/ste10Xp.c

0 → 100644
+137 −0
Original line number Diff line number Diff line 
/*

 * 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 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,}

};



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,}

};



static int __init ste10Xp_init(void)

{

	int retval;



	retval = phy_driver_register(&ste100p_pdriver);

	if (retval < 0)

		return retval;

	return phy_driver_register(&ste101p_pdriver);

}



static void __exit ste10Xp_exit(void)

{

	phy_driver_unregister(&ste100p_pdriver);

	phy_driver_unregister(&ste101p_pdriver);

}



module_init(ste10Xp_init);

module_exit(ste10Xp_exit);



MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");

MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");

MODULE_LICENSE("GPL");