1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * SMSC PHY drivers
4 *
5 * Base code from drivers/net/phy/davicom.c
6 * Copyright 2010-2011 Freescale Semiconductor, Inc.
7 * author Andy Fleming
8 *
9 * Some code copied from linux kernel
10 * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
11 */
12 #include <miiphy.h>
13
14 /* This code does not check the partner abilities. */
smsc_parse_status(struct phy_device * phydev)15 static int smsc_parse_status(struct phy_device *phydev)
16 {
17 int mii_reg;
18
19 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
20
21 if (mii_reg & (BMSR_100FULL | BMSR_100HALF))
22 phydev->speed = SPEED_100;
23 else
24 phydev->speed = SPEED_10;
25
26 if (mii_reg & (BMSR_10FULL | BMSR_100FULL))
27 phydev->duplex = DUPLEX_FULL;
28 else
29 phydev->duplex = DUPLEX_HALF;
30
31 return 0;
32 }
33
smsc_startup(struct phy_device * phydev)34 static int smsc_startup(struct phy_device *phydev)
35 {
36 int ret;
37
38 ret = genphy_update_link(phydev);
39 if (ret)
40 return ret;
41
42 return smsc_parse_status(phydev);
43 }
44
45 static struct phy_driver lan8700_driver = {
46 .name = "SMSC LAN8700",
47 .uid = 0x0007c0c0,
48 .mask = 0xffff0,
49 .features = PHY_BASIC_FEATURES,
50 .config = &genphy_config_aneg,
51 .startup = &smsc_startup,
52 .shutdown = &genphy_shutdown,
53 };
54
55 static struct phy_driver lan911x_driver = {
56 .name = "SMSC LAN911x Internal PHY",
57 .uid = 0x0007c0d0,
58 .mask = 0xffff0,
59 .features = PHY_BASIC_FEATURES,
60 .config = &genphy_config_aneg,
61 .startup = &smsc_startup,
62 .shutdown = &genphy_shutdown,
63 };
64
65 static struct phy_driver lan8710_driver = {
66 .name = "SMSC LAN8710/LAN8720",
67 .uid = 0x0007c0f0,
68 .mask = 0xffff0,
69 .features = PHY_BASIC_FEATURES,
70 .config = &genphy_config_aneg,
71 .startup = &genphy_startup,
72 .shutdown = &genphy_shutdown,
73 };
74
75 static struct phy_driver lan8740_driver = {
76 .name = "SMSC LAN8740",
77 .uid = 0x0007c110,
78 .mask = 0xffff0,
79 .features = PHY_BASIC_FEATURES,
80 .config = &genphy_config_aneg,
81 .startup = &genphy_startup,
82 .shutdown = &genphy_shutdown,
83 };
84
85 static struct phy_driver lan8741_driver = {
86 .name = "SMSC LAN8741",
87 .uid = 0x0007c120,
88 .mask = 0xffff0,
89 .features = PHY_BASIC_FEATURES,
90 .config = &genphy_config_aneg,
91 .startup = &genphy_startup,
92 .shutdown = &genphy_shutdown,
93 };
94
95 static struct phy_driver lan8742_driver = {
96 .name = "SMSC LAN8742",
97 .uid = 0x0007c130,
98 .mask = 0xffff0,
99 .features = PHY_BASIC_FEATURES,
100 .config = &genphy_config_aneg,
101 .startup = &genphy_startup,
102 .shutdown = &genphy_shutdown,
103 };
104
phy_smsc_init(void)105 int phy_smsc_init(void)
106 {
107 phy_register(&lan8710_driver);
108 phy_register(&lan911x_driver);
109 phy_register(&lan8700_driver);
110 phy_register(&lan8740_driver);
111 phy_register(&lan8741_driver);
112 phy_register(&lan8742_driver);
113
114 return 0;
115 }
116