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gerrit-public.fairphone.software / kernel / msm-4.9 / 35028599bc8884f33e36a9353be6f1401940aa29 / . / drivers / net / phy / aquantia.c
blob: 09b0b0aa8d6877ad233d72c139aa6cd52bcd2db7 [file] [log] [blame]
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]1/*
2 * Driver for Aquantia PHY
3 *
4 * Author: Shaohui Xie <Shaohui.Xie@freescale.com>
5 *
6 * Copyright 2015 Freescale Semiconductor, Inc.
7 *
8 * This file is licensed under the terms of the GNU General Public License
9 * version 2. This program is licensed "as is" without any warranty of any
10 * kind, whether express or implied.
11 */
12
13#include <linux/kernel.h>
14#include <linux/module.h>
15#include <linux/delay.h>
16#include <linux/mii.h>
17#include <linux/ethtool.h>
18#include <linux/phy.h>
19#include <linux/mdio.h>
20
21#define PHY_ID_AQ1202 0x03a1b445
22#define PHY_ID_AQ2104 0x03a1b460
23#define PHY_ID_AQR105 0x03a1b4a2
24#define PHY_ID_AQR405 0x03a1b4b0
25
26#define PHY_AQUANTIA_FEATURES (SUPPORTED_10000baseT_Full | \
27 SUPPORTED_1000baseT_Full | \
28 SUPPORTED_100baseT_Full | \
29 PHY_DEFAULT_FEATURES)
30
31static int aquantia_config_aneg(struct phy_device *phydev)
32{
33 phydev->supported = PHY_AQUANTIA_FEATURES;
34 phydev->advertising = phydev->supported;
35
36 return 0;
37}
38
39static int aquantia_aneg_done(struct phy_device *phydev)
40{
41 int reg;
42
43 reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
44 return (reg < 0) ? reg : (reg & BMSR_ANEGCOMPLETE);
45}
46
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]47static int aquantia_config_intr(struct phy_device *phydev)
48{
49 int err;
50
51 if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
52 err = phy_write_mmd(phydev, MDIO_MMD_AN, 0xd401, 1);
53 if (err < 0)
54 return err;
55
56 err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff00, 1);
57 if (err < 0)
58 return err;
59
60 err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff01, 0x1001);
61 } else {
62 err = phy_write_mmd(phydev, MDIO_MMD_AN, 0xd401, 0);
63 if (err < 0)
64 return err;
65
66 err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff00, 0);
67 if (err < 0)
68 return err;
69
70 err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff01, 0);
71 }
72
73 return err;
74}
75
76static int aquantia_ack_interrupt(struct phy_device *phydev)
77{
78 int reg;
79
80 reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xcc01);
81 return (reg < 0) ? reg : 0;
82}
83
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]84static int aquantia_read_status(struct phy_device *phydev)
85{
86 int reg;
87
88 reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
89 reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
90 if (reg & MDIO_STAT1_LSTATUS)
91 phydev->link = 1;
92 else
93 phydev->link = 0;
94
95 reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xc800);
96 mdelay(10);
97 reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xc800);
98
99 switch (reg) {
100 case 0x9:
101 phydev->speed = SPEED_2500;
102 break;
103 case 0x5:
104 phydev->speed = SPEED_1000;
105 break;
106 case 0x3:
107 phydev->speed = SPEED_100;
108 break;
109 case 0x7:
110 default:
111 phydev->speed = SPEED_10000;
112 break;
113 }
114 phydev->duplex = DUPLEX_FULL;
115
116 return 0;
117}
118
119static struct phy_driver aquantia_driver[] = {
120{
121 .phy_id = PHY_ID_AQ1202,
122 .phy_id_mask = 0xfffffff0,
123 .name = "Aquantia AQ1202",
124 .features = PHY_AQUANTIA_FEATURES,
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]125 .flags = PHY_HAS_INTERRUPT,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]126 .aneg_done = aquantia_aneg_done,
127 .config_aneg = aquantia_config_aneg,
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]128 .config_intr = aquantia_config_intr,
129 .ack_interrupt = aquantia_ack_interrupt,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]130 .read_status = aquantia_read_status,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]131},
132{
133 .phy_id = PHY_ID_AQ2104,
134 .phy_id_mask = 0xfffffff0,
135 .name = "Aquantia AQ2104",
136 .features = PHY_AQUANTIA_FEATURES,
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]137 .flags = PHY_HAS_INTERRUPT,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]138 .aneg_done = aquantia_aneg_done,
139 .config_aneg = aquantia_config_aneg,
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]140 .config_intr = aquantia_config_intr,
141 .ack_interrupt = aquantia_ack_interrupt,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]142 .read_status = aquantia_read_status,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]143},
144{
145 .phy_id = PHY_ID_AQR105,
146 .phy_id_mask = 0xfffffff0,
147 .name = "Aquantia AQR105",
148 .features = PHY_AQUANTIA_FEATURES,
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]149 .flags = PHY_HAS_INTERRUPT,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]150 .aneg_done = aquantia_aneg_done,
151 .config_aneg = aquantia_config_aneg,
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]152 .config_intr = aquantia_config_intr,
153 .ack_interrupt = aquantia_ack_interrupt,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]154 .read_status = aquantia_read_status,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]155},
156{
157 .phy_id = PHY_ID_AQR405,
158 .phy_id_mask = 0xfffffff0,
159 .name = "Aquantia AQR405",
160 .features = PHY_AQUANTIA_FEATURES,
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]161 .flags = PHY_HAS_INTERRUPT,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]162 .aneg_done = aquantia_aneg_done,
163 .config_aneg = aquantia_config_aneg,
Shaohui Xie54cf7be2015-08-21 15:29:29 +0800[diff] [blame]164 .config_intr = aquantia_config_intr,
165 .ack_interrupt = aquantia_ack_interrupt,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]166 .read_status = aquantia_read_status,
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]167},
168};
169
Axel Linfb0801d2015-10-14 18:30:48 +0800[diff] [blame]170module_phy_driver(aquantia_driver);
Shaohui Xiebee82592015-07-31 16:58:42 +0800[diff] [blame]171
172static struct mdio_device_id __maybe_unused aquantia_tbl[] = {
173 { PHY_ID_AQ1202, 0xfffffff0 },
174 { PHY_ID_AQ2104, 0xfffffff0 },
175 { PHY_ID_AQR105, 0xfffffff0 },
176 { PHY_ID_AQR405, 0xfffffff0 },
177 { }
178};
179
180MODULE_DEVICE_TABLE(mdio, aquantia_tbl);
181
182MODULE_DESCRIPTION("Aquantia PHY driver");
183MODULE_AUTHOR("Shaohui Xie <Shaohui.Xie@freescale.com>");
184MODULE_LICENSE("GPL v2");