1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
/*
* Copyright (c) 2022 Jared McNeill <jmcneill@invisible.ca>
* Copyright (c) 2022 Soren Schmidt <sos@deepcore.dk>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Motorcomm YT8511C / YT8511H Integrated 10/100/1000 Gigabit Ethernet phy
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <net/if.h>
#include <net/if_media.h>
#include <dev/mii/mii.h>
#include <dev/mii/miivar.h>
#include "miibus_if.h"
#define MCOMMPHY_OUI 0x000000
#define MCOMMPHY_MODEL 0x10
#define MCOMMPHY_REV 0x0a
#define EXT_REG_ADDR 0x1e
#define EXT_REG_DATA 0x1f
/* Extended registers */
#define PHY_CLOCK_GATING_REG 0x0c
#define RX_CLK_DELAY_EN 0x0001
#define CLK_25M_SEL 0x0006
#define CLK_25M_SEL_125M 3
#define TX_CLK_DELAY_SEL 0x00f0
#define PHY_SLEEP_CONTROL1_REG 0x27
#define PLLON_IN_SLP 0x4000
#define LOWEST_SET_BIT(mask) ((((mask) - 1) & (mask)) ^ (mask))
#define SHIFTIN(x, mask) ((x) * LOWEST_SET_BIT(mask))
static int
mcommphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
switch (cmd) {
case MII_POLLSTAT:
break;
case MII_MEDIACHG:
mii_phy_setmedia(sc);
break;
case MII_TICK:
if (mii_phy_tick(sc) == EJUSTRETURN)
return (0);
break;
}
/* Update the media status. */
PHY_STATUS(sc);
/* Callback if something changed. */
mii_phy_update(sc, cmd);
return (0);
}
static const struct mii_phy_funcs mcommphy_funcs = {
mcommphy_service,
ukphy_status,
mii_phy_reset
};
static int
mcommphy_probe(device_t dev)
{
struct mii_attach_args *ma = device_get_ivars(dev);
/*
* The YT8511C reports an OUI of 0. Best we can do here is to match
* exactly the contents of the PHY identification registers.
*/
if (MII_OUI(ma->mii_id1, ma->mii_id2) == MCOMMPHY_OUI &&
MII_MODEL(ma->mii_id2) == MCOMMPHY_MODEL &&
MII_REV(ma->mii_id2) == MCOMMPHY_REV) {
device_set_desc(dev, "Motorcomm YT8511 media interface");
return BUS_PROBE_DEFAULT;
}
return (ENXIO);
}
static int
mcommphy_attach(device_t dev)
{
struct mii_softc *sc = device_get_softc(dev);
uint16_t oldaddr, data;
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &mcommphy_funcs, 0);
PHY_RESET(sc);
/* begin chip stuff */
oldaddr = PHY_READ(sc, EXT_REG_ADDR);
PHY_WRITE(sc, EXT_REG_ADDR, PHY_CLOCK_GATING_REG);
data = PHY_READ(sc, EXT_REG_DATA);
data &= ~CLK_25M_SEL;
data |= SHIFTIN(CLK_25M_SEL_125M, CLK_25M_SEL);;
if (sc->mii_flags & MIIF_RX_DELAY) {
data |= RX_CLK_DELAY_EN;
} else {
data &= ~RX_CLK_DELAY_EN;
}
data &= ~TX_CLK_DELAY_SEL;
if (sc->mii_flags & MIIF_TX_DELAY) {
data |= SHIFTIN(0xf, TX_CLK_DELAY_SEL);
} else {
data |= SHIFTIN(0x2, TX_CLK_DELAY_SEL);
}
PHY_WRITE(sc, EXT_REG_DATA, data);
PHY_WRITE(sc, EXT_REG_ADDR, PHY_SLEEP_CONTROL1_REG);
data = PHY_READ(sc, EXT_REG_DATA);
data |= PLLON_IN_SLP;
PHY_WRITE(sc, EXT_REG_DATA, data);
PHY_WRITE(sc, EXT_REG_ADDR, oldaddr);
/* end chip stuff */
sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
if (sc->mii_capabilities & BMSR_EXTSTAT)
sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
device_printf(dev, " ");
mii_phy_add_media(sc);
printf("\n");
MIIBUS_MEDIAINIT(sc->mii_dev);
return (0);
}
static device_method_t mcommphy_methods[] = {
/* device interface */
DEVMETHOD(device_probe, mcommphy_probe),
DEVMETHOD(device_attach, mcommphy_attach),
DEVMETHOD(device_detach, mii_phy_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD_END
};
static driver_t mcommphy_driver = {
"mcommphy",
mcommphy_methods,
sizeof(struct mii_softc)
};
DRIVER_MODULE(mcommphy, miibus, mcommphy_driver, 0, 0);
|
