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Commit 097c2aa8 authored by Johnson Leung's avatar Johnson Leung Committed by David S. Miller
Browse files

phylib: Add Realtek 821x eth PHY support 



this PHY present on the MPC8315E and MPC837xE RDB boards.

Signed-off-by: default avatarJohnson Leung <r58129@freescale.com>
Signed-off-by: default avatarKevin Lam <r43770@freescale.com>
Signed-off-by: default avatarJoe D'Abbraccio <ljd015@freescale.com>
Signed-off-by: default avatarKim Phillips <kim.phillips@freescale.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6344f052

drivers/net/phy/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -60,6 +60,11 @@ config ICPLUS_PHY 
	---help---

	  Currently supports the IP175C PHY.



config REALTEK_PHY

	tristate "Drivers for Realtek PHYs"

	---help---

	  Supports the Realtek 821x PHY.



config FIXED_PHY

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

	---help---

drivers/net/phy/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -12,5 +12,6 @@ obj-$(CONFIG_SMSC_PHY) += smsc.o 
obj-$(CONFIG_VITESSE_PHY)	+= vitesse.o

obj-$(CONFIG_BROADCOM_PHY)	+= broadcom.o

obj-$(CONFIG_ICPLUS_PHY)	+= icplus.o

obj-$(CONFIG_REALTEK_PHY)	+= realtek.o

obj-$(CONFIG_FIXED_PHY)		+= fixed.o

obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o

drivers/net/phy/realtek.c

0 → 100644
+80 −0
Original line number Diff line number Diff line 
/*

 * drivers/net/phy/realtek.c

 *

 * Driver for Realtek PHYs

 *

 * Author: Johnson Leung <r58129@freescale.com>

 *

 * 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/phy.h>



#define RTL821x_PHYSR		0x11

#define RTL821x_PHYSR_DUPLEX	0x2000

#define RTL821x_PHYSR_SPEED	0xc000

#define RTL821x_INER		0x12

#define RTL821x_INER_INIT	0x6400

#define RTL821x_INSR		0x13



MODULE_DESCRIPTION("Realtek PHY driver");

MODULE_AUTHOR("Johnson Leung");

MODULE_LICENSE("GPL");



static int rtl821x_ack_interrupt(struct phy_device *phydev)

{

	int err;



	err = phy_read(phydev, RTL821x_INSR);



	return (err < 0) ? err : 0;

}



static int rtl821x_config_intr(struct phy_device *phydev)

{

	int err;



	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)

		err = phy_write(phydev, RTL821x_INER,

				RTL821x_INER_INIT);

	else

		err = phy_write(phydev, RTL821x_INER, 0);



	return err;

}



/* RTL8211B */

static struct phy_driver rtl821x_driver = {

	.phy_id		= 0x001cc912,

	.name		= "RTL821x Gigabit Ethernet",

	.phy_id_mask	= 0x001fffff,

	.features	= PHY_GBIT_FEATURES,

	.flags		= PHY_HAS_INTERRUPT,

	.config_aneg	= &genphy_config_aneg,

	.read_status	= &genphy_read_status,

	.ack_interrupt	= &rtl821x_ack_interrupt,

	.config_intr	= &rtl821x_config_intr,

	.driver		= { .owner = THIS_MODULE,},

};



static int __init realtek_init(void)

{

	int ret;



	ret = phy_driver_register(&rtl821x_driver);



	return ret;

}



static void __exit realtek_exit(void)

{

	phy_driver_unregister(&rtl821x_driver);

}



module_init(realtek_init);

module_exit(realtek_exit);