1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2011-2012 Stefan Bethke.
5 * Copyright (c) 2012 Adrian Chadd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31
32 #include <sys/param.h>
33 #include <sys/bus.h>
34 #include <sys/errno.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
37 #include <sys/socket.h>
38 #include <sys/sockio.h>
39 #include <sys/sysctl.h>
40 #include <sys/systm.h>
41
42 #include <net/if.h>
43 #include <net/if_arp.h>
44 #include <net/ethernet.h>
45 #include <net/if_dl.h>
46 #include <net/if_media.h>
47 #include <net/if_types.h>
48
49 #include <machine/bus.h>
50 #include <dev/iicbus/iic.h>
51 #include <dev/iicbus/iiconf.h>
52 #include <dev/iicbus/iicbus.h>
53 #include <dev/mii/mii.h>
54 #include <dev/mii/miivar.h>
55 #include <dev/mdio/mdio.h>
56
57 #include <dev/etherswitch/etherswitch.h>
58
59 #include <dev/etherswitch/arswitch/arswitchreg.h>
60 #include <dev/etherswitch/arswitch/arswitchvar.h>
61 #include <dev/etherswitch/arswitch/arswitch_reg.h>
62 #include <dev/etherswitch/arswitch/arswitch_phy.h> /* XXX for probe */
63 #include <dev/etherswitch/arswitch/arswitch_7240.h>
64
65 #include "mdio_if.h"
66 #include "miibus_if.h"
67 #include "etherswitch_if.h"
68
69 /*
70 * AR7240 specific functions
71 */
72 static int
ar7240_hw_setup(struct arswitch_softc * sc)73 ar7240_hw_setup(struct arswitch_softc *sc)
74 {
75
76 return (0);
77 }
78
79 /*
80 * Initialise other global values for the AR7240.
81 */
82 static int
ar7240_hw_global_setup(struct arswitch_softc * sc)83 ar7240_hw_global_setup(struct arswitch_softc *sc)
84 {
85
86 ARSWITCH_LOCK(sc);
87
88 /* Enable CPU port; disable mirror port */
89 arswitch_writereg(sc->sc_dev, AR8X16_REG_CPU_PORT,
90 AR8X16_CPU_PORT_EN | AR8X16_CPU_MIRROR_DIS);
91
92 /* Setup TAG priority mapping */
93 arswitch_writereg(sc->sc_dev, AR8X16_REG_TAG_PRIO, 0xfa50);
94
95 /* Enable broadcast frames transmitted to the CPU */
96 arswitch_writereg(sc->sc_dev, AR8X16_REG_FLOOD_MASK,
97 AR8X16_FLOOD_MASK_BCAST_TO_CPU | 0x003f003f);
98
99 /* Setup MTU */
100 arswitch_modifyreg(sc->sc_dev, AR8X16_REG_GLOBAL_CTRL,
101 AR7240_GLOBAL_CTRL_MTU_MASK,
102 SM(1536, AR7240_GLOBAL_CTRL_MTU_MASK));
103
104 /* Service Tag */
105 arswitch_modifyreg(sc->sc_dev, AR8X16_REG_SERVICE_TAG,
106 AR8X16_SERVICE_TAG_MASK, 0);
107
108 ARSWITCH_UNLOCK(sc);
109
110 return (0);
111 }
112
113 /*
114 * The AR7240 probes the same as the AR8216.
115 *
116 * However, the support is slightly different.
117 *
118 * So instead of checking the PHY revision or mask register contents,
119 * we simply fall back to a hint check.
120 */
121 int
ar7240_probe(device_t dev)122 ar7240_probe(device_t dev)
123 {
124 int is_7240 = 0;
125
126 if (resource_int_value(device_get_name(dev), device_get_unit(dev),
127 "is_7240", &is_7240) != 0)
128 return (ENXIO);
129
130 if (is_7240 == 0)
131 return (ENXIO);
132
133 return (0);
134 }
135
136 void
ar7240_attach(struct arswitch_softc * sc)137 ar7240_attach(struct arswitch_softc *sc)
138 {
139
140 sc->hal.arswitch_hw_setup = ar7240_hw_setup;
141 sc->hal.arswitch_hw_global_setup = ar7240_hw_global_setup;
142
143 /* Set the switch vlan capabilities. */
144 sc->info.es_vlan_caps = ETHERSWITCH_VLAN_DOT1Q |
145 ETHERSWITCH_VLAN_PORT | ETHERSWITCH_VLAN_DOUBLE_TAG;
146 sc->info.es_nvlangroups = AR8X16_MAX_VLANS;
147 }
148