[GitHub/mt8127/android_kernel_alcatel_ttab.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;
	return phy_write(phydev, MII_BCM63XX_IR, reg);
}

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_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 */
	.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)
{
	return phy_drivers_register(bcm63xx_driver,
		ARRAY_SIZE(bcm63xx_driver));
}

static void __exit bcm63xx_phy_exit(void)
{
	phy_drivers_unregister(bcm63xx_driver,
		ARRAY_SIZE(bcm63xx_driver));
}

module_init(bcm63xx_phy_init);
module_exit(bcm63xx_phy_exit);

static struct mdio_device_id __maybe_unused 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;
a25cc43e	42	return phy_write(phydev, MII_BCM63XX_IR, reg);
09bb9aa0 MB	43	}
	44
	45	static int bcm63xx_ack_interrupt(struct phy_device *phydev)
	46	{
	47	int reg;
	48
	49	/* Clear pending interrupts. */
	50	reg = phy_read(phydev, MII_BCM63XX_IR);
	51	if (reg < 0)
	52	return reg;
	53
	54	return 0;
	55	}
	56
	57	static int bcm63xx_config_intr(struct phy_device *phydev)
	58	{
	59	int reg, err;
	60
	61	reg = phy_read(phydev, MII_BCM63XX_IR);
	62	if (reg < 0)
	63	return reg;
	64
	65	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
	66	reg &= ~MII_BCM63XX_IR_GMASK;
	67	else
	68	reg \|= MII_BCM63XX_IR_GMASK;
	69
	70	err = phy_write(phydev, MII_BCM63XX_IR, reg);
	71	return err;
	72	}
	73
d5bf9071 CH	74	static struct phy_driver bcm63xx_driver[] = {
d5bf9071 CH	75	{
09bb9aa0 MB	76	.phy_id = 0x00406000,
	77	.phy_id_mask = 0xfffffc00,
	78	.name = "Broadcom BCM63XX (1)",
	79	/* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */
	80	.features = (PHY_BASIC_FEATURES \| SUPPORTED_Pause),
	81	.flags = PHY_HAS_INTERRUPT,
	82	.config_init = bcm63xx_config_init,
	83	.config_aneg = genphy_config_aneg,
	84	.read_status = genphy_read_status,
	85	.ack_interrupt = bcm63xx_ack_interrupt,
	86	.config_intr = bcm63xx_config_intr,
	87	.driver = { .owner = THIS_MODULE },
d5bf9071 CH	88	}, {
d5bf9071 CH	89	/* same phy as above, with just a different OUI */
09bb9aa0 MB	90	.phy_id = 0x002bdc00,
	91	.phy_id_mask = 0xfffffc00,
	92	.name = "Broadcom BCM63XX (2)",
	93	.features = (PHY_BASIC_FEATURES \| SUPPORTED_Pause),
	94	.flags = PHY_HAS_INTERRUPT,
	95	.config_init = bcm63xx_config_init,
	96	.config_aneg = genphy_config_aneg,
	97	.read_status = genphy_read_status,
	98	.ack_interrupt = bcm63xx_ack_interrupt,
	99	.config_intr = bcm63xx_config_intr,
	100	.driver = { .owner = THIS_MODULE },
d5bf9071	101	} };
09bb9aa0 MB	102
	103	static int __init bcm63xx_phy_init(void)
	104	{
d5bf9071 CH	105	return phy_drivers_register(bcm63xx_driver,
d5bf9071 CH	106	ARRAY_SIZE(bcm63xx_driver));
09bb9aa0 MB	107	}
	108
	109	static void __exit bcm63xx_phy_exit(void)
	110	{
d5bf9071 CH	111	phy_drivers_unregister(bcm63xx_driver,
d5bf9071 CH	112	ARRAY_SIZE(bcm63xx_driver));
09bb9aa0 MB	113	}
	114
	115	module_init(bcm63xx_phy_init);
	116	module_exit(bcm63xx_phy_exit);
4e4f10f6	117
cf93c945	118	static struct mdio_device_id __maybe_unused bcm63xx_tbl[] = {
4e4f10f6 DW	119	{ 0x00406000, 0xfffffc00 },
	120	{ 0x002bdc00, 0xfffffc00 },
	121	{ }
	122	};
	123
0de8655a	124	MODULE_DEVICE_TABLE(mdio, bcm63xx_tbl);