1 /*-
2 * Copyright (c) 2011-2012 Stefan Bethke.
3 * Copyright (c) 2012 Adrian Chadd.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD$
28 */
29
30 #include <sys/param.h>
31 #include <sys/bus.h>
32 #include <sys/errno.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35 #include <sys/socket.h>
36 #include <sys/sockio.h>
37 #include <sys/sysctl.h>
38 #include <sys/systm.h>
39
40 #include <net/if.h>
41 #include <net/if_arp.h>
42 #include <net/ethernet.h>
43 #include <net/if_dl.h>
44 #include <net/if_media.h>
45 #include <net/if_types.h>
46
47 #include <machine/bus.h>
48 #include <dev/iicbus/iic.h>
49 #include <dev/iicbus/iiconf.h>
50 #include <dev/iicbus/iicbus.h>
51 #include <dev/mii/mii.h>
52 #include <dev/mii/miivar.h>
53 #include <dev/etherswitch/mdio.h>
54
55 #include <dev/etherswitch/etherswitch.h>
56
57 #include <dev/etherswitch/arswitch/arswitchreg.h>
58 #include <dev/etherswitch/arswitch/arswitchvar.h>
59 #include <dev/etherswitch/arswitch/arswitch_reg.h>
60 #include <dev/etherswitch/arswitch/arswitch_phy.h> /* XXX for probe */
61 #include <dev/etherswitch/arswitch/arswitch_7240.h>
62
63 #include "mdio_if.h"
64 #include "miibus_if.h"
65 #include "etherswitch_if.h"
66
67 /*
68 * AR7240 specific functions
69 */
70 static int
ar7240_hw_setup(struct arswitch_softc * sc)71 ar7240_hw_setup(struct arswitch_softc *sc)
72 {
73
74 return (0);
75 }
76
77 /*
78 * Initialise other global values for the AR7240.
79 */
80 static int
ar7240_hw_global_setup(struct arswitch_softc * sc)81 ar7240_hw_global_setup(struct arswitch_softc *sc)
82 {
83
84 /* Enable CPU port; disable mirror port */
85 arswitch_writereg(sc->sc_dev, AR8X16_REG_CPU_PORT,
86 AR8X16_CPU_PORT_EN | AR8X16_CPU_MIRROR_DIS);
87
88 /* Setup TAG priority mapping */
89 arswitch_writereg(sc->sc_dev, AR8X16_REG_TAG_PRIO, 0xfa50);
90
91 /* Enable broadcast frames transmitted to the CPU */
92 arswitch_writereg(sc->sc_dev, AR8X16_REG_FLOOD_MASK,
93 AR8X16_FLOOD_MASK_BCAST_TO_CPU | 0x003f003f);
94
95 /* Setup MTU */
96 arswitch_modifyreg(sc->sc_dev, AR8X16_REG_GLOBAL_CTRL,
97 AR7240_GLOBAL_CTRL_MTU_MASK,
98 SM(1536, AR7240_GLOBAL_CTRL_MTU_MASK));
99
100 /* Service Tag */
101 arswitch_modifyreg(sc->sc_dev, AR8X16_REG_SERVICE_TAG,
102 AR8X16_SERVICE_TAG_MASK, 0);
103
104 return (0);
105 }
106
107 /*
108 * The AR7240 probes the same as the AR8216.
109 *
110 * However, the support is slightly different.
111 *
112 * So instead of checking the PHY revision or mask register contents,
113 * we simply fall back to a hint check.
114 */
115 int
ar7240_probe(device_t dev)116 ar7240_probe(device_t dev)
117 {
118 int is_7240 = 0;
119
120 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
121 "is_7240", &is_7240) != 0)
122 return (ENXIO);
123
124 if (is_7240 == 0)
125 return (ENXIO);
126
127 return (0);
128 }
129
130 void
ar7240_attach(struct arswitch_softc * sc)131 ar7240_attach(struct arswitch_softc *sc)
132 {
133
134 sc->hal.arswitch_hw_setup = ar7240_hw_setup;
135 sc->hal.arswitch_hw_global_setup = ar7240_hw_global_setup;
136
137 /* Set the switch vlan capabilities. */
138 sc->info.es_vlan_caps = ETHERSWITCH_VLAN_DOT1Q |
139 ETHERSWITCH_VLAN_PORT | ETHERSWITCH_VLAN_DOUBLE_TAG;
140 sc->info.es_nvlangroups = AR8X16_MAX_VLANS;
141 }
142