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 "bcm-phy-lib.h"
10#include <linux/module.h>
11#include <linux/phy.h>
12
13#define MII_BCM63XX_IR		0x1a	/* interrupt register */
14#define MII_BCM63XX_IR_EN	0x4000	/* global interrupt enable */
15#define MII_BCM63XX_IR_DUPLEX	0x0800	/* duplex changed */
16#define MII_BCM63XX_IR_SPEED	0x0400	/* speed changed */
17#define MII_BCM63XX_IR_LINK	0x0200	/* link changed */
18#define MII_BCM63XX_IR_GMASK	0x0100	/* global interrupt mask */
19
20MODULE_DESCRIPTION("Broadcom 63xx internal PHY driver");
21MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");
22MODULE_LICENSE("GPL");
23
24static int bcm63xx_config_init(struct phy_device *phydev)
25{
26	int reg, err;
27
28	reg = phy_read(phydev, MII_BCM63XX_IR);
29	if (reg < 0)
30		return reg;
31
32	/* Mask interrupts globally.  */
33	reg |= MII_BCM63XX_IR_GMASK;
34	err = phy_write(phydev, MII_BCM63XX_IR, reg);
35	if (err < 0)
36		return err;
37
38	/* Unmask events we are interested in  */
39	reg = ~(MII_BCM63XX_IR_DUPLEX |
40		MII_BCM63XX_IR_SPEED |
41		MII_BCM63XX_IR_LINK) |
42		MII_BCM63XX_IR_EN;
43	return phy_write(phydev, MII_BCM63XX_IR, reg);
44}
45
46static struct phy_driver bcm63xx_driver[] = {
47{
48	.phy_id		= 0x00406000,
49	.phy_id_mask	= 0xfffffc00,
50	.name		= "Broadcom BCM63XX (1)",
51	/* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */
52	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause),
53	.flags		= PHY_HAS_INTERRUPT | PHY_IS_INTERNAL,
54	.config_init	= bcm63xx_config_init,
55	.config_aneg	= genphy_config_aneg,
56	.read_status	= genphy_read_status,
57	.ack_interrupt	= bcm_phy_ack_intr,
58	.config_intr	= bcm_phy_config_intr,
59	.driver		= { .owner = THIS_MODULE },
60}, {
61	/* same phy as above, with just a different OUI */
62	.phy_id		= 0x002bdc00,
63	.phy_id_mask	= 0xfffffc00,
64	.name		= "Broadcom BCM63XX (2)",
65	.features	= (PHY_BASIC_FEATURES | SUPPORTED_Pause),
66	.flags		= PHY_HAS_INTERRUPT | PHY_IS_INTERNAL,
67	.config_init	= bcm63xx_config_init,
68	.config_aneg	= genphy_config_aneg,
69	.read_status	= genphy_read_status,
70	.ack_interrupt	= bcm_phy_ack_intr,
71	.config_intr	= bcm_phy_config_intr,
72	.driver		= { .owner = THIS_MODULE },
73} };
74
75module_phy_driver(bcm63xx_driver);
76
77static struct mdio_device_id __maybe_unused bcm63xx_tbl[] = {
78	{ 0x00406000, 0xfffffc00 },
79	{ 0x002bdc00, 0xfffffc00 },
80	{ }
81};
82
83MODULE_DEVICE_TABLE(mdio, bcm63xx_tbl);
84