4 * SPDX-License-Identifier: GPL-2.0+
6 * Base code from drivers/net/phy/davicom.c
7 * Copyright 2010-2011 Freescale Semiconductor, Inc.
10 * Some code copied from linux kernel
11 * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
15 /* This code does not check the partner abilities. */
16 static int smsc_parse_status(struct phy_device *phydev)
20 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
22 if (mii_reg & (BMSR_100FULL | BMSR_100HALF))
23 phydev->speed = SPEED_100;
25 phydev->speed = SPEED_10;
27 if (mii_reg & (BMSR_10FULL | BMSR_100FULL))
28 phydev->duplex = DUPLEX_FULL;
30 phydev->duplex = DUPLEX_HALF;
35 static int smsc_startup(struct phy_device *phydev)
39 ret = genphy_update_link(phydev);
43 return smsc_parse_status(phydev);
46 static struct phy_driver lan8700_driver = {
47 .name = "SMSC LAN8700",
50 .features = PHY_BASIC_FEATURES,
51 .config = &genphy_config_aneg,
52 .startup = &smsc_startup,
53 .shutdown = &genphy_shutdown,
56 static struct phy_driver lan911x_driver = {
57 .name = "SMSC LAN911x Internal PHY",
60 .features = PHY_BASIC_FEATURES,
61 .config = &genphy_config_aneg,
62 .startup = &smsc_startup,
63 .shutdown = &genphy_shutdown,
66 static struct phy_driver lan8710_driver = {
67 .name = "SMSC LAN8710/LAN8720",
70 .features = PHY_BASIC_FEATURES,
71 .config = &genphy_config_aneg,
72 .startup = &genphy_startup,
73 .shutdown = &genphy_shutdown,
76 static struct phy_driver lan8740_driver = {
77 .name = "SMSC LAN8740",
80 .features = PHY_BASIC_FEATURES,
81 .config = &genphy_config_aneg,
82 .startup = &genphy_startup,
83 .shutdown = &genphy_shutdown,
86 static struct phy_driver lan8742_driver = {
87 .name = "SMSC LAN8742",
90 .features = PHY_BASIC_FEATURES,
91 .config = &genphy_config_aneg,
92 .startup = &genphy_startup,
93 .shutdown = &genphy_shutdown,
96 int phy_smsc_init(void)
98 phy_register(&lan8710_driver);
99 phy_register(&lan911x_driver);
100 phy_register(&lan8700_driver);
101 phy_register(&lan8740_driver);
102 phy_register(&lan8742_driver);