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Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +00001/*
2 * SMSC PHY drivers
3 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02004 * SPDX-License-Identifier: GPL-2.0+
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +00005 *
6 * Base code from drivers/net/phy/davicom.c
7 * Copyright 2010-2011 Freescale Semiconductor, Inc.
8 * author Andy Fleming
9 *
Robert P. J. Day1bce2ae2013-09-16 07:15:45 -040010 * Some code copied from linux kernel
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +000011 * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +000012 */
13#include <miiphy.h>
14
David Dueckf27f3b52013-11-05 17:23:03 +010015/* This code does not check the partner abilities. */
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +000016static int smsc_parse_status(struct phy_device *phydev)
17{
18 int mii_reg;
19
20 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
21
22 if (mii_reg & (BMSR_100FULL | BMSR_100HALF))
23 phydev->speed = SPEED_100;
24 else
25 phydev->speed = SPEED_10;
26
27 if (mii_reg & (BMSR_10FULL | BMSR_100FULL))
28 phydev->duplex = DUPLEX_FULL;
29 else
30 phydev->duplex = DUPLEX_HALF;
31
32 return 0;
33}
34
35static int smsc_startup(struct phy_device *phydev)
36{
Michal Simekb733c272016-05-18 12:46:12 +020037 int ret;
38
39 ret = genphy_update_link(phydev);
40 if (ret)
41 return ret;
42
43 return smsc_parse_status(phydev);
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +000044}
45
46static struct phy_driver lan8700_driver = {
47 .name = "SMSC LAN8700",
48 .uid = 0x0007c0c0,
49 .mask = 0xffff0,
50 .features = PHY_BASIC_FEATURES,
51 .config = &genphy_config_aneg,
52 .startup = &smsc_startup,
53 .shutdown = &genphy_shutdown,
54};
55
56static struct phy_driver lan911x_driver = {
57 .name = "SMSC LAN911x Internal PHY",
58 .uid = 0x0007c0d0,
59 .mask = 0xffff0,
60 .features = PHY_BASIC_FEATURES,
61 .config = &genphy_config_aneg,
62 .startup = &smsc_startup,
63 .shutdown = &genphy_shutdown,
64};
65
66static struct phy_driver lan8710_driver = {
67 .name = "SMSC LAN8710/LAN8720",
68 .uid = 0x0007c0f0,
69 .mask = 0xffff0,
Fabio Estevam25634212013-06-06 21:04:19 -030070 .features = PHY_BASIC_FEATURES,
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +000071 .config = &genphy_config_aneg,
David Dueckf27f3b52013-11-05 17:23:03 +010072 .startup = &genphy_startup,
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +000073 .shutdown = &genphy_shutdown,
74};
75
Purna Chandra Mandal46c9d932016-01-28 15:30:20 +053076static struct phy_driver lan8740_driver = {
77 .name = "SMSC LAN8740",
78 .uid = 0x0007c110,
79 .mask = 0xffff0,
80 .features = PHY_BASIC_FEATURES,
81 .config = &genphy_config_aneg,
82 .startup = &genphy_startup,
83 .shutdown = &genphy_shutdown,
84};
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +000085int phy_smsc_init(void)
86{
87 phy_register(&lan8710_driver);
88 phy_register(&lan911x_driver);
89 phy_register(&lan8700_driver);
Purna Chandra Mandal46c9d932016-01-28 15:30:20 +053090 phy_register(&lan8740_driver);
Nobuhiro Iwamatsu5751aa22011-11-23 21:24:15 +000091
92 return 0;
93}