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)
37 genphy_update_link(phydev);
38 smsc_parse_status(phydev);
42 static struct phy_driver lan8700_driver = {
43 .name = "SMSC LAN8700",
46 .features = PHY_BASIC_FEATURES,
47 .config = &genphy_config_aneg,
48 .startup = &smsc_startup,
49 .shutdown = &genphy_shutdown,
52 static struct phy_driver lan911x_driver = {
53 .name = "SMSC LAN911x Internal PHY",
56 .features = PHY_BASIC_FEATURES,
57 .config = &genphy_config_aneg,
58 .startup = &smsc_startup,
59 .shutdown = &genphy_shutdown,
62 static struct phy_driver lan8710_driver = {
63 .name = "SMSC LAN8710/LAN8720",
66 .features = PHY_BASIC_FEATURES,
67 .config = &genphy_config_aneg,
68 .startup = &genphy_startup,
69 .shutdown = &genphy_shutdown,
72 int phy_smsc_init(void)
74 phy_register(&lan8710_driver);
75 phy_register(&lan911x_driver);
76 phy_register(&lan8700_driver);