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1/*
2 * National Semiconductor PHY drivers
3 *
1a459660 4 * SPDX-License-Identifier: GPL-2.0+
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5 *
6 * Copyright 2010-2011 Freescale Semiconductor, Inc.
7 * author Andy Fleming
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8 */
9#include <phy.h>
10
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11/* NatSemi DP83630 */
12
13#define DP83630_PHY_PAGESEL_REG 0x13
14#define DP83630_PHY_PTP_COC_REG 0x14
15#define DP83630_PHY_PTP_CLKOUT_EN (1<<15)
16#define DP83630_PHY_RBR_REG 0x17
17
18static int dp83630_config(struct phy_device *phydev)
19{
20 int ptp_coc_reg;
21
22 phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
23 phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PAGESEL_REG, 0x6);
24 ptp_coc_reg = phy_read(phydev, MDIO_DEVAD_NONE,
25 DP83630_PHY_PTP_COC_REG);
26 ptp_coc_reg &= ~DP83630_PHY_PTP_CLKOUT_EN;
27 phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PTP_COC_REG,
28 ptp_coc_reg);
29 phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PAGESEL_REG, 0);
30
31 genphy_config_aneg(phydev);
32
33 return 0;
34}
35
36static struct phy_driver DP83630_driver = {
37 .name = "NatSemi DP83630",
38 .uid = 0x20005ce1,
39 .mask = 0xfffffff0,
40 .features = PHY_BASIC_FEATURES,
41 .config = &dp83630_config,
42 .startup = &genphy_startup,
43 .shutdown = &genphy_shutdown,
44};
45
46
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47/* DP83865 Link and Auto-Neg Status Register */
48#define MIIM_DP83865_LANR 0x11
49#define MIIM_DP83865_SPD_MASK 0x0018
50#define MIIM_DP83865_SPD_1000 0x0010
51#define MIIM_DP83865_SPD_100 0x0008
52#define MIIM_DP83865_DPX_FULL 0x0002
53
54
55/* NatSemi DP83865 */
5ea667ea 56static int dp838xx_config(struct phy_device *phydev)
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57{
58 phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
59 genphy_config_aneg(phydev);
60
61 return 0;
62}
63
64static int dp83865_parse_status(struct phy_device *phydev)
65{
66 int mii_reg;
67
68 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_DP83865_LANR);
69
70 switch (mii_reg & MIIM_DP83865_SPD_MASK) {
71
72 case MIIM_DP83865_SPD_1000:
73 phydev->speed = SPEED_1000;
74 break;
75
76 case MIIM_DP83865_SPD_100:
77 phydev->speed = SPEED_100;
78 break;
79
80 default:
81 phydev->speed = SPEED_10;
82 break;
83
84 }
85
86 if (mii_reg & MIIM_DP83865_DPX_FULL)
87 phydev->duplex = DUPLEX_FULL;
88 else
89 phydev->duplex = DUPLEX_HALF;
90
91 return 0;
92}
93
94static int dp83865_startup(struct phy_device *phydev)
95{
96 genphy_update_link(phydev);
97 dp83865_parse_status(phydev);
98
99 return 0;
100}
101
102
103static struct phy_driver DP83865_driver = {
104 .name = "NatSemi DP83865",
105 .uid = 0x20005c70,
106 .mask = 0xfffffff0,
107 .features = PHY_GBIT_FEATURES,
5ea667ea 108 .config = &dp838xx_config,
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109 .startup = &dp83865_startup,
110 .shutdown = &genphy_shutdown,
111};
112
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113/* NatSemi DP83848 */
114static int dp83848_parse_status(struct phy_device *phydev)
115{
116 int mii_reg;
117
118 mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
119
120 if(mii_reg & (BMSR_100FULL | BMSR_100HALF)) {
121 phydev->speed = SPEED_100;
122 } else {
123 phydev->speed = SPEED_10;
124 }
125
126 if (mii_reg & (BMSR_10FULL | BMSR_100FULL)) {
127 phydev->duplex = DUPLEX_FULL;
128 } else {
129 phydev->duplex = DUPLEX_HALF;
130 }
131
132 return 0;
133}
134
135static int dp83848_startup(struct phy_device *phydev)
136{
137 genphy_update_link(phydev);
138 dp83848_parse_status(phydev);
139
140 return 0;
141}
142
143static struct phy_driver DP83848_driver = {
144 .name = "NatSemi DP83848",
145 .uid = 0x20005c90,
146 .mask = 0x2000ff90,
147 .features = PHY_BASIC_FEATURES,
148 .config = &dp838xx_config,
149 .startup = &dp83848_startup,
150 .shutdown = &genphy_shutdown,
151};
152
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153int phy_natsemi_init(void)
154{
96d0b9e1 155 phy_register(&DP83630_driver);
9082eeac 156 phy_register(&DP83865_driver);
5ea667ea 157 phy_register(&DP83848_driver);
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158
159 return 0;
160}