[linux-2.6-block.git] / drivers / net / phy / ste10Xp.c

/*
 * 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 ste10xp_pdriver[] = {
{
	.phy_id = STE101P_PHY_ID,
	.phy_id_mask = 0xfffffff0,
	.name = "STe101p",
	.features = PHY_BASIC_FEATURES,
	.flags = PHY_HAS_INTERRUPT,
	.config_init = ste10Xp_config_init,
	.ack_interrupt = ste10Xp_ack_interrupt,
	.config_intr = ste10Xp_config_intr,
	.suspend = genphy_suspend,
	.resume = genphy_resume,
}, {
	.phy_id = STE100P_PHY_ID,
	.phy_id_mask = 0xffffffff,
	.name = "STe100p",
	.features = PHY_BASIC_FEATURES,
	.flags = PHY_HAS_INTERRUPT,
	.config_init = ste10Xp_config_init,
	.ack_interrupt = ste10Xp_ack_interrupt,
	.config_intr = ste10Xp_config_intr,
	.suspend = genphy_suspend,
	.resume = genphy_resume,
} };

module_phy_driver(ste10xp_pdriver);

static struct mdio_device_id __maybe_unused ste10Xp_tbl[] = {
	{ STE101P_PHY_ID, 0xfffffff0 },
	{ STE100P_PHY_ID, 0xffffffff },
	{ }
};

MODULE_DEVICE_TABLE(mdio, ste10Xp_tbl);

MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
f95be180 GC	1	/*
	2	* drivers/net/phy/ste10Xp.c
	3	*
	4	* Driver for STMicroelectronics STe10Xp PHYs
	5	*
	6	* Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
	7	*
	8	* Copyright (c) 2008 STMicroelectronics Limited
	9	*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the
	12	* Free Software Foundation; either version 2 of the License, or (at your
	13	* option) any later version.
	14	*
	15	*/
	16
	17	#include <linux/module.h>
	18	#include <linux/init.h>
	19	#include <linux/sched.h>
	20	#include <linux/kernel.h>
	21	#include <linux/moduleparam.h>
	22	#include <linux/interrupt.h>
	23	#include <linux/netdevice.h>
	24	#include <linux/ethtool.h>
	25	#include <linux/mii.h>
	26	#include <linux/phy.h>
	27
	28	#define MII_XCIIS 0x11 /* Configuration Info IRQ & Status Reg */
	29	#define MII_XIE 0x12 /* Interrupt Enable Register */
	30	#define MII_XIE_DEFAULT_MASK 0x0070 /* ANE complete, Remote Fault, Link Down */
	31
	32	#define STE101P_PHY_ID 0x00061c50
	33	#define STE100P_PHY_ID 0x1c040011
	34
	35	static int ste10Xp_config_init(struct phy_device *phydev)
	36	{
	37	int value, err;
	38
	39	/* Software Reset PHY */
	40	value = phy_read(phydev, MII_BMCR);
	41	if (value < 0)
	42	return value;
	43
	44	value \|= BMCR_RESET;
	45	err = phy_write(phydev, MII_BMCR, value);
	46	if (err < 0)
	47	return err;
	48
	49	do {
	50	value = phy_read(phydev, MII_BMCR);
	51	} while (value & BMCR_RESET);
	52
	53	return 0;
	54	}
	55
	56	static int ste10Xp_config_intr(struct phy_device *phydev)
	57	{
	58	int err, value;
	59
	60	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
	61	/* Enable all STe101P interrupts (PR12) */
	62	err = phy_write(phydev, MII_XIE, MII_XIE_DEFAULT_MASK);
	63	/* clear any pending interrupts */
	64	if (err == 0) {
65	value = phy_read(phydev, MII_XCIIS);
66	if (value < 0)
67	err = value;
68	}
69	} else
70	err = phy_write(phydev, MII_XIE, 0);
71
72	return err;
73	}
74
75	static int ste10Xp_ack_interrupt(struct phy_device *phydev)
76	{
77	int err = phy_read(phydev, MII_XCIIS);
78	if (err < 0)
79	return err;
80
81	return 0;
82	}
83
d5bf9071 CH	84	static struct phy_driver ste10xp_pdriver[] = {
d5bf9071 CH	85	{
f95be180 GC	86	.phy_id = STE101P_PHY_ID,
	87	.phy_id_mask = 0xfffffff0,
	88	.name = "STe101p",
4ef972fd	89	.features = PHY_BASIC_FEATURES,
f95be180 GC	90	.flags = PHY_HAS_INTERRUPT,
f95be180 GC	91	.config_init = ste10Xp_config_init,
f95be180 GC	92	.ack_interrupt = ste10Xp_ack_interrupt,
	93	.config_intr = ste10Xp_config_intr,
	94	.suspend = genphy_suspend,
	95	.resume = genphy_resume,
d5bf9071	96	}, {
f95be180 GC	97	.phy_id = STE100P_PHY_ID,
	98	.phy_id_mask = 0xffffffff,
	99	.name = "STe100p",
4ef972fd	100	.features = PHY_BASIC_FEATURES,
f95be180 GC	101	.flags = PHY_HAS_INTERRUPT,
f95be180 GC	102	.config_init = ste10Xp_config_init,
f95be180 GC	103	.ack_interrupt = ste10Xp_ack_interrupt,
	104	.config_intr = ste10Xp_config_intr,
	105	.suspend = genphy_suspend,
	106	.resume = genphy_resume,
d5bf9071	107	} };
f95be180	108
50fd7150	109	module_phy_driver(ste10xp_pdriver);
f95be180	110
cf93c945	111	static struct mdio_device_id __maybe_unused ste10Xp_tbl[] = {
4e4f10f6 DW	112	{ STE101P_PHY_ID, 0xfffffff0 },
	113	{ STE100P_PHY_ID, 0xffffffff },
	114	{ }
	115	};
	116
	117	MODULE_DEVICE_TABLE(mdio, ste10Xp_tbl);
	118
f95be180 GC	119	MODULE_DESCRIPTION("STMicroelectronics STe10Xp PHY driver");
	120	MODULE_AUTHOR("Giuseppe Cavallaro <peppe.cavallaro@st.com>");
	121	MODULE_LICENSE("GPL");