[net-next-2.6.git] / drivers / net / phy / broadcom.c

/*
 *	drivers/net/phy/broadcom.c
 *
 *	Broadcom BCM5411, BCM5421 and BCM5461 Gigabit Ethernet
 *	transceivers.
 *
 *	Copyright (c) 2006  Maciej W. Rozycki
 *
 *	Inspired by code written by Amy Fong.
 *
 *	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/phy.h>

#define MII_BCM54XX_ECR		0x10	/* BCM54xx extended control register */
#define MII_BCM54XX_ECR_IM	0x1000	/* Interrupt mask */
#define MII_BCM54XX_ECR_IF	0x0800	/* Interrupt force */

#define MII_BCM54XX_ESR		0x11	/* BCM54xx extended status register */
#define MII_BCM54XX_ESR_IS	0x1000	/* Interrupt status */

#define MII_BCM54XX_ISR		0x1a	/* BCM54xx interrupt status register */
#define MII_BCM54XX_IMR		0x1b	/* BCM54xx interrupt mask register */
#define MII_BCM54XX_INT_CRCERR	0x0001	/* CRC error */
#define MII_BCM54XX_INT_LINK	0x0002	/* Link status changed */
#define MII_BCM54XX_INT_SPEED	0x0004	/* Link speed change */
#define MII_BCM54XX_INT_DUPLEX	0x0008	/* Duplex mode changed */
#define MII_BCM54XX_INT_LRS	0x0010	/* Local receiver status changed */
#define MII_BCM54XX_INT_RRS	0x0020	/* Remote receiver status changed */
#define MII_BCM54XX_INT_SSERR	0x0040	/* Scrambler synchronization error */
#define MII_BCM54XX_INT_UHCD	0x0080	/* Unsupported HCD negotiated */
#define MII_BCM54XX_INT_NHCD	0x0100	/* No HCD */
#define MII_BCM54XX_INT_NHCDL	0x0200	/* No HCD link */
#define MII_BCM54XX_INT_ANPR	0x0400	/* Auto-negotiation page received */
#define MII_BCM54XX_INT_LC	0x0800	/* All counters below 128 */
#define MII_BCM54XX_INT_HC	0x1000	/* Counter above 32768 */
#define MII_BCM54XX_INT_MDIX	0x2000	/* MDIX status change */
#define MII_BCM54XX_INT_PSERR	0x4000	/* Pair swap error */

MODULE_DESCRIPTION("Broadcom PHY driver");
MODULE_AUTHOR("Maciej W. Rozycki");
MODULE_LICENSE("GPL");

static int bcm54xx_config_init(struct phy_device *phydev)
{
	int reg, err;

	reg = phy_read(phydev, MII_BCM54XX_ECR);
	if (reg < 0)
		return reg;

	/* Mask interrupts globally.  */
	reg |= MII_BCM54XX_ECR_IM;
	err = phy_write(phydev, MII_BCM54XX_ECR, reg);
	if (err < 0)
		return err;

	/* Unmask events we are interested in.  */
	reg = ~(MII_BCM54XX_INT_DUPLEX |
		MII_BCM54XX_INT_SPEED |
		MII_BCM54XX_INT_LINK);
	err = phy_write(phydev, MII_BCM54XX_IMR, reg);
	if (err < 0)
		return err;
	return 0;
}

static int bcm54xx_ack_interrupt(struct phy_device *phydev)
{
	int reg;

	/* Clear pending interrupts.  */
	reg = phy_read(phydev, MII_BCM54XX_ISR);
	if (reg < 0)
		return reg;

	return 0;
}

static int bcm54xx_config_intr(struct phy_device *phydev)
{
	int reg, err;

	reg = phy_read(phydev, MII_BCM54XX_ECR);
	if (reg < 0)
		return reg;

	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
		reg &= ~MII_BCM54XX_ECR_IM;
	else
		reg |= MII_BCM54XX_ECR_IM;

	err = phy_write(phydev, MII_BCM54XX_ECR, reg);
	return err;
}

static struct phy_driver bcm5411_driver = {
	.phy_id		= 0x00206070,
	.phy_id_mask	= 0xfffffff0,
	.name		= "Broadcom BCM5411",
	.features	= PHY_GBIT_FEATURES,
	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
	.config_init	= bcm54xx_config_init,
	.config_aneg	= genphy_config_aneg,
	.read_status	= genphy_read_status,
	.ack_interrupt	= bcm54xx_ack_interrupt,
	.config_intr	= bcm54xx_config_intr,
	.driver 	= { .owner = THIS_MODULE },
};

static struct phy_driver bcm5421_driver = {
	.phy_id		= 0x002060e0,
	.phy_id_mask	= 0xfffffff0,
	.name		= "Broadcom BCM5421",
	.features	= PHY_GBIT_FEATURES,
	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
	.config_init	= bcm54xx_config_init,
	.config_aneg	= genphy_config_aneg,
	.read_status	= genphy_read_status,
	.ack_interrupt	= bcm54xx_ack_interrupt,
	.config_intr	= bcm54xx_config_intr,
	.driver 	= { .owner = THIS_MODULE },
};

static struct phy_driver bcm5461_driver = {
	.phy_id		= 0x002060c0,
	.phy_id_mask	= 0xfffffff0,
	.name		= "Broadcom BCM5461",
	.features	= PHY_GBIT_FEATURES,
	.flags		= PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
	.config_init	= bcm54xx_config_init,
	.config_aneg	= genphy_config_aneg,
	.read_status	= genphy_read_status,
	.ack_interrupt	= bcm54xx_ack_interrupt,
	.config_intr	= bcm54xx_config_intr,
	.driver 	= { .owner = THIS_MODULE },
};

static int __init broadcom_init(void)
{
	int ret;

	ret = phy_driver_register(&bcm5411_driver);
	if (ret)
		goto out_5411;
	ret = phy_driver_register(&bcm5421_driver);
	if (ret)
		goto out_5421;
	ret = phy_driver_register(&bcm5461_driver);
	if (ret)
		goto out_5461;
	return ret;

out_5461:
	phy_driver_unregister(&bcm5421_driver);
out_5421:
	phy_driver_unregister(&bcm5411_driver);
out_5411:
	return ret;
}

static void __exit broadcom_exit(void)
{
	phy_driver_unregister(&bcm5461_driver);
	phy_driver_unregister(&bcm5421_driver);
	phy_driver_unregister(&bcm5411_driver);
}

module_init(broadcom_init);
module_exit(broadcom_exit);
Commit	Line	Data
c4b41c9f MR	1	/*
	2	* drivers/net/phy/broadcom.c
	3	*
	4	* Broadcom BCM5411, BCM5421 and BCM5461 Gigabit Ethernet
	5	* transceivers.
	6	*
	7	* Copyright (c) 2006 Maciej W. Rozycki
	8	*
	9	* Inspired by code written by Amy Fong.
	10	*
	11	* This program is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU General Public License
	13	* as published by the Free Software Foundation; either version
	14	* 2 of the License, or (at your option) any later version.
	15	*/
	16
	17	#include <linux/module.h>
	18	#include <linux/phy.h>
	19
	20	#define MII_BCM54XX_ECR 0x10 /* BCM54xx extended control register */
	21	#define MII_BCM54XX_ECR_IM 0x1000 /* Interrupt mask */
	22	#define MII_BCM54XX_ECR_IF 0x0800 /* Interrupt force */
	23
	24	#define MII_BCM54XX_ESR 0x11 /* BCM54xx extended status register */
	25	#define MII_BCM54XX_ESR_IS 0x1000 /* Interrupt status */
	26
	27	#define MII_BCM54XX_ISR 0x1a /* BCM54xx interrupt status register */
	28	#define MII_BCM54XX_IMR 0x1b /* BCM54xx interrupt mask register */
	29	#define MII_BCM54XX_INT_CRCERR 0x0001 /* CRC error */
	30	#define MII_BCM54XX_INT_LINK 0x0002 /* Link status changed */
	31	#define MII_BCM54XX_INT_SPEED 0x0004 /* Link speed change */
	32	#define MII_BCM54XX_INT_DUPLEX 0x0008 /* Duplex mode changed */
	33	#define MII_BCM54XX_INT_LRS 0x0010 /* Local receiver status changed */
	34	#define MII_BCM54XX_INT_RRS 0x0020 /* Remote receiver status changed */
	35	#define MII_BCM54XX_INT_SSERR 0x0040 /* Scrambler synchronization error */
	36	#define MII_BCM54XX_INT_UHCD 0x0080 /* Unsupported HCD negotiated */
	37	#define MII_BCM54XX_INT_NHCD 0x0100 /* No HCD */
	38	#define MII_BCM54XX_INT_NHCDL 0x0200 /* No HCD link */
	39	#define MII_BCM54XX_INT_ANPR 0x0400 /* Auto-negotiation page received */
	40	#define MII_BCM54XX_INT_LC 0x0800 /* All counters below 128 */
	41	#define MII_BCM54XX_INT_HC 0x1000 /* Counter above 32768 */
	42	#define MII_BCM54XX_INT_MDIX 0x2000 /* MDIX status change */
	43	#define MII_BCM54XX_INT_PSERR 0x4000 /* Pair swap error */
	44
	45	MODULE_DESCRIPTION("Broadcom PHY driver");
	46	MODULE_AUTHOR("Maciej W. Rozycki");
	47	MODULE_LICENSE("GPL");
	48
	49	static int bcm54xx_config_init(struct phy_device *phydev)
	50	{
	51	int reg, err;
	52
	53	reg = phy_read(phydev, MII_BCM54XX_ECR);
	54	if (reg < 0)
	55	return reg;
	56
	57	/* Mask interrupts globally. */
	58	reg \|= MII_BCM54XX_ECR_IM;
	59	err = phy_write(phydev, MII_BCM54XX_ECR, reg);
	60	if (err < 0)
	61	return err;
	62
	63	/* Unmask events we are interested in. */
	64	reg = ~(MII_BCM54XX_INT_DUPLEX \|
65	MII_BCM54XX_INT_SPEED \|
66	MII_BCM54XX_INT_LINK);
67	err = phy_write(phydev, MII_BCM54XX_IMR, reg);
68	if (err < 0)
69	return err;
70	return 0;
71	}
72
73	static int bcm54xx_ack_interrupt(struct phy_device *phydev)
74	{
75	int reg;
76
77	/* Clear pending interrupts. */
78	reg = phy_read(phydev, MII_BCM54XX_ISR);
79	if (reg < 0)
80	return reg;
81
82	return 0;
83	}
84
85	static int bcm54xx_config_intr(struct phy_device *phydev)
86	{
87	int reg, err;
88
89	reg = phy_read(phydev, MII_BCM54XX_ECR);
90	if (reg < 0)
91	return reg;
92
93	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
94	reg &= ~MII_BCM54XX_ECR_IM;
95	else
96	reg \|= MII_BCM54XX_ECR_IM;
97
98	err = phy_write(phydev, MII_BCM54XX_ECR, reg);
99	return err;
100	}
101
102	static struct phy_driver bcm5411_driver = {
103	.phy_id = 0x00206070,
104	.phy_id_mask = 0xfffffff0,
105	.name = "Broadcom BCM5411",
106	.features = PHY_GBIT_FEATURES,
107	.flags = PHY_HAS_MAGICANEG \| PHY_HAS_INTERRUPT,
108	.config_init = bcm54xx_config_init,
109	.config_aneg = genphy_config_aneg,
110	.read_status = genphy_read_status,
111	.ack_interrupt = bcm54xx_ack_interrupt,
112	.config_intr = bcm54xx_config_intr,
113	.driver = { .owner = THIS_MODULE },
114	};
115
116	static struct phy_driver bcm5421_driver = {
117	.phy_id = 0x002060e0,
118	.phy_id_mask = 0xfffffff0,
119	.name = "Broadcom BCM5421",
120	.features = PHY_GBIT_FEATURES,
121	.flags = PHY_HAS_MAGICANEG \| PHY_HAS_INTERRUPT,
122	.config_init = bcm54xx_config_init,
123	.config_aneg = genphy_config_aneg,
124	.read_status = genphy_read_status,
125	.ack_interrupt = bcm54xx_ack_interrupt,
126	.config_intr = bcm54xx_config_intr,
127	.driver = { .owner = THIS_MODULE },
128	};
129
130	static struct phy_driver bcm5461_driver = {
131	.phy_id = 0x002060c0,
132	.phy_id_mask = 0xfffffff0,
133	.name = "Broadcom BCM5461",
134	.features = PHY_GBIT_FEATURES,
135	.flags = PHY_HAS_MAGICANEG \| PHY_HAS_INTERRUPT,
136	.config_init = bcm54xx_config_init,
137	.config_aneg = genphy_config_aneg,
138	.read_status = genphy_read_status,
139	.ack_interrupt = bcm54xx_ack_interrupt,
140	.config_intr = bcm54xx_config_intr,
141	.driver = { .owner = THIS_MODULE },
142	};
143
144	static int __init broadcom_init(void)
145	{
146	int ret;
147
148	ret = phy_driver_register(&bcm5411_driver);
149	if (ret)
150	goto out_5411;
151	ret = phy_driver_register(&bcm5421_driver);
152	if (ret)
153	goto out_5421;
154	ret = phy_driver_register(&bcm5461_driver);
155	if (ret)
156	goto out_5461;
157	return ret;
158
159	out_5461:
160	phy_driver_unregister(&bcm5421_driver);
161	out_5421:
162	phy_driver_unregister(&bcm5411_driver);
163	out_5411:
164	return ret;
165	}
166
167	static void __exit broadcom_exit(void)
168	{
169	phy_driver_unregister(&bcm5461_driver);
170	phy_driver_unregister(&bcm5421_driver);
171	phy_driver_unregister(&bcm5411_driver);
172	}
173
174	module_init(broadcom_init);
175	module_exit(broadcom_exit);