[deliverable/linux.git] / drivers / net / phy / bcm63xx.c

/*
 *	Driver for Broadcom 63xx SOCs integrated PHYs
 *
 *	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_BCM63XX_IR		0x1a	/* interrupt register */
#define MII_BCM63XX_IR_EN	0x4000	/* global interrupt enable */
#define MII_BCM63XX_IR_DUPLEX	0x0800	/* duplex changed */
#define MII_BCM63XX_IR_SPEED	0x0400	/* speed changed */
#define MII_BCM63XX_IR_LINK	0x0200	/* link changed */
#define MII_BCM63XX_IR_GMASK	0x0100	/* global interrupt mask */

MODULE_DESCRIPTION("Broadcom 63xx internal PHY driver");
MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");
MODULE_LICENSE("GPL");

static int bcm63xx_config_init(struct phy_device *phydev)
{
	int reg, err;

	reg = phy_read(phydev, MII_BCM63XX_IR);
	if (reg < 0)
		return reg;

	/* Mask interrupts globally.  */
	reg |= MII_BCM63XX_IR_GMASK;
	err = phy_write(phydev, MII_BCM63XX_IR, reg);
	if (err < 0)
		return err;

	/* Unmask events we are interested in  */
	reg = ~(MII_BCM63XX_IR_DUPLEX |
		MII_BCM63XX_IR_SPEED |
		MII_BCM63XX_IR_LINK) |
		MII_BCM63XX_IR_EN;
	err = phy_write(phydev, MII_BCM63XX_IR, reg);
	if (err < 0)
		return err;
	return 0;
}

static int bcm63xx_ack_interrupt(struct phy_device *phydev)
{
	int reg;

	/* Clear pending interrupts.  */
	reg = phy_read(phydev, MII_BCM63XX_IR);
	if (reg < 0)
		return reg;

	return 0;
}

static int bcm63xx_config_intr(struct phy_device *phydev)
{
	int reg, err;

	reg = phy_read(phydev, MII_BCM63XX_IR);
	if (reg < 0)
		return reg;

	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
		reg &= ~MII_BCM63XX_IR_GMASK;
	else
		reg |= MII_BCM63XX_IR_GMASK;

	err = phy_write(phydev, MII_BCM63XX_IR, reg);
	return err;
}

static struct phy_driver bcm63xx_1_driver = {
	.phy_id		= 0x00406000,
	.phy_id_mask	= 0xfffffc00,
	.name		= "Broadcom BCM63XX (1)",
	/* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */
	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause),
	.flags		= PHY_HAS_INTERRUPT,
	.config_init	= bcm63xx_config_init,
	.config_aneg	= genphy_config_aneg,
	.read_status	= genphy_read_status,
	.ack_interrupt	= bcm63xx_ack_interrupt,
	.config_intr	= bcm63xx_config_intr,
	.driver		= { .owner = THIS_MODULE },
};

/* same phy as above, with just a different OUI */
static struct phy_driver bcm63xx_2_driver = {
	.phy_id		= 0x002bdc00,
	.phy_id_mask	= 0xfffffc00,
	.name		= "Broadcom BCM63XX (2)",
	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause),
	.flags		= PHY_HAS_INTERRUPT,
	.config_init	= bcm63xx_config_init,
	.config_aneg	= genphy_config_aneg,
	.read_status	= genphy_read_status,
	.ack_interrupt	= bcm63xx_ack_interrupt,
	.config_intr	= bcm63xx_config_intr,
	.driver		= { .owner = THIS_MODULE },
};

static int __init bcm63xx_phy_init(void)
{
	int ret;

	ret = phy_driver_register(&bcm63xx_1_driver);
	if (ret)
		goto out_63xx_1;
	ret = phy_driver_register(&bcm63xx_2_driver);
	if (ret)
		goto out_63xx_2;
	return ret;

out_63xx_2:
	phy_driver_unregister(&bcm63xx_1_driver);
out_63xx_1:
	return ret;
}

static void __exit bcm63xx_phy_exit(void)
{
	phy_driver_unregister(&bcm63xx_1_driver);
	phy_driver_unregister(&bcm63xx_2_driver);
}

module_init(bcm63xx_phy_init);
module_exit(bcm63xx_phy_exit);

static struct mdio_device_id bcm63xx_tbl[] = {
	{ 0x00406000, 0xfffffc00 },
	{ 0x002bdc00, 0xfffffc00 },
	{ }
};

MODULE_DEVICE_TABLE(mdio, bcm63xx_tbl);
Commit	Line	Data
09bb9aa0 MB	1	/*
	2	* Driver for Broadcom 63xx SOCs integrated PHYs
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*/
	9	#include <linux/module.h>
	10	#include <linux/phy.h>
	11
	12	#define MII_BCM63XX_IR 0x1a /* interrupt register */
	13	#define MII_BCM63XX_IR_EN 0x4000 /* global interrupt enable */
	14	#define MII_BCM63XX_IR_DUPLEX 0x0800 /* duplex changed */
	15	#define MII_BCM63XX_IR_SPEED 0x0400 /* speed changed */
	16	#define MII_BCM63XX_IR_LINK 0x0200 /* link changed */
	17	#define MII_BCM63XX_IR_GMASK 0x0100 /* global interrupt mask */
	18
	19	MODULE_DESCRIPTION("Broadcom 63xx internal PHY driver");
	20	MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");
	21	MODULE_LICENSE("GPL");
	22
	23	static int bcm63xx_config_init(struct phy_device *phydev)
	24	{
	25	int reg, err;
	26
	27	reg = phy_read(phydev, MII_BCM63XX_IR);
	28	if (reg < 0)
	29	return reg;
	30
	31	/* Mask interrupts globally. */
	32	reg \|= MII_BCM63XX_IR_GMASK;
	33	err = phy_write(phydev, MII_BCM63XX_IR, reg);
	34	if (err < 0)
	35	return err;
	36
	37	/* Unmask events we are interested in */
	38	reg = ~(MII_BCM63XX_IR_DUPLEX \|
	39	MII_BCM63XX_IR_SPEED \|
	40	MII_BCM63XX_IR_LINK) \|
	41	MII_BCM63XX_IR_EN;
	42	err = phy_write(phydev, MII_BCM63XX_IR, reg);
	43	if (err < 0)
	44	return err;
	45	return 0;
	46	}
	47
	48	static int bcm63xx_ack_interrupt(struct phy_device *phydev)
	49	{
	50	int reg;
	51
	52	/* Clear pending interrupts. */
	53	reg = phy_read(phydev, MII_BCM63XX_IR);
	54	if (reg < 0)
	55	return reg;
	56
	57	return 0;
	58	}
	59
	60	static int bcm63xx_config_intr(struct phy_device *phydev)
	61	{
	62	int reg, err;
	63
	64	reg = phy_read(phydev, MII_BCM63XX_IR);
65	if (reg < 0)
66	return reg;
67
68	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
69	reg &= ~MII_BCM63XX_IR_GMASK;
70	else
71	reg \|= MII_BCM63XX_IR_GMASK;
72
73	err = phy_write(phydev, MII_BCM63XX_IR, reg);
74	return err;
75	}
76
77	static struct phy_driver bcm63xx_1_driver = {
78	.phy_id = 0x00406000,
79	.phy_id_mask = 0xfffffc00,
80	.name = "Broadcom BCM63XX (1)",
81	/* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */
82	.features = (PHY_BASIC_FEATURES \| SUPPORTED_Pause),
83	.flags = PHY_HAS_INTERRUPT,
84	.config_init = bcm63xx_config_init,
85	.config_aneg = genphy_config_aneg,
86	.read_status = genphy_read_status,
87	.ack_interrupt = bcm63xx_ack_interrupt,
88	.config_intr = bcm63xx_config_intr,
89	.driver = { .owner = THIS_MODULE },
90	};
91
92	/* same phy as above, with just a different OUI */
93	static struct phy_driver bcm63xx_2_driver = {
94	.phy_id = 0x002bdc00,
95	.phy_id_mask = 0xfffffc00,
96	.name = "Broadcom BCM63XX (2)",
97	.features = (PHY_BASIC_FEATURES \| SUPPORTED_Pause),
98	.flags = PHY_HAS_INTERRUPT,
99	.config_init = bcm63xx_config_init,
100	.config_aneg = genphy_config_aneg,
101	.read_status = genphy_read_status,
102	.ack_interrupt = bcm63xx_ack_interrupt,
103	.config_intr = bcm63xx_config_intr,
104	.driver = { .owner = THIS_MODULE },
105	};
106
107	static int __init bcm63xx_phy_init(void)
108	{
109	int ret;
110
111	ret = phy_driver_register(&bcm63xx_1_driver);
112	if (ret)
113	goto out_63xx_1;
114	ret = phy_driver_register(&bcm63xx_2_driver);
115	if (ret)
116	goto out_63xx_2;
117	return ret;
118
119	out_63xx_2:
120	phy_driver_unregister(&bcm63xx_1_driver);
121	out_63xx_1:
122	return ret;
123	}
124
125	static void __exit bcm63xx_phy_exit(void)
126	{
127	phy_driver_unregister(&bcm63xx_1_driver);
128	phy_driver_unregister(&bcm63xx_2_driver);
129	}
130
131	module_init(bcm63xx_phy_init);
132	module_exit(bcm63xx_phy_exit);
4e4f10f6 DW	133
	134	static struct mdio_device_id bcm63xx_tbl[] = {
	135	{ 0x00406000, 0xfffffc00 },
	136	{ 0x002bdc00, 0xfffffc00 },
	137	{ }
	138	};
	139
0de8655a	140	MODULE_DEVICE_TABLE(mdio, bcm63xx_tbl);