1 /* $OpenBSD: if_hme_sbus.c,v 1.7 2003/07/07 15:37:07 jason Exp $ */
2 /* $NetBSD: if_hme_sbus.c,v 1.6 2001/02/28 14:52:48 mrg Exp $ */
3
4 /*-
5 * Copyright (c) 1999 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Paul Kranenburg.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 /*
41 * SBus front-end device driver for the HME ethernet device.
42 */
43
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/syslog.h>
47 #include <sys/device.h>
48 #include <sys/malloc.h>
49 #include <sys/socket.h>
50
51 #include <net/if.h>
52 #include <net/if_dl.h>
53 #include <net/if_media.h>
54
55 #ifdef INET
56 #include <netinet/in.h>
57 #include <netinet/in_systm.h>
58 #include <netinet/in_var.h>
59 #include <netinet/ip.h>
60 #include <netinet/if_ether.h>
61 #endif
62
63 #include <dev/mii/mii.h>
64 #include <dev/mii/miivar.h>
65
66 #include <machine/bus.h>
67 #include <machine/intr.h>
68 #include <machine/autoconf.h>
69
70 #include <dev/sbus/sbusvar.h>
71 #include <dev/ic/hmevar.h>
72 #include <dev/ofw/openfirm.h>
73
74 struct hmesbus_softc {
75 struct hme_softc hsc_hme; /* HME device */
76 struct sbusdev hsc_sbus; /* SBus device */
77 };
78
79 int hmematch_sbus(struct device *, void *, void *);
80 void hmeattach_sbus(struct device *, struct device *, void *);
81
82 struct cfattach hme_sbus_ca = {
83 sizeof(struct hmesbus_softc), hmematch_sbus, hmeattach_sbus
84 };
85
86 int
hmematch_sbus(struct device * parent,void * vcf,void * aux)87 hmematch_sbus(struct device *parent, void *vcf, void *aux)
88 {
89 struct cfdata *cf = vcf;
90 struct sbus_attach_args *sa = aux;
91
92 return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0 ||
93 strcmp("SUNW,qfe", sa->sa_name) == 0 ||
94 strcmp("SUNW,hme", sa->sa_name) == 0);
95 }
96
97 void
hmeattach_sbus(struct device * parent,struct device * self,void * aux)98 hmeattach_sbus(struct device *parent, struct device *self, void *aux)
99 {
100 struct sbus_attach_args *sa = aux;
101 struct hmesbus_softc *hsc = (void *)self;
102 struct hme_softc *sc = &hsc->hsc_hme;
103 struct sbusdev *sd = &hsc->hsc_sbus;
104 u_int32_t burst, sbusburst;
105 int node;
106 /* XXX the following declarations should be elsewhere */
107 extern void myetheraddr(u_char *);
108
109 node = sa->sa_node;
110
111 /* Pass on the bus tags */
112 sc->sc_bustag = sa->sa_bustag;
113 sc->sc_dmatag = sa->sa_dmatag;
114
115 if (sa->sa_nreg < 5) {
116 printf("%s: only %d register sets\n",
117 self->dv_xname, sa->sa_nreg);
118 return;
119 }
120
121 /*
122 * Map five register banks:
123 *
124 * bank 0: HME SEB registers
125 * bank 1: HME ETX registers
126 * bank 2: HME ERX registers
127 * bank 3: HME MAC registers
128 * bank 4: HME MIF registers
129 *
130 */
131 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
132 (bus_addr_t)sa->sa_reg[0].sbr_offset,
133 (bus_size_t)sa->sa_reg[0].sbr_size, 0, 0, &sc->sc_seb) != 0) {
134 printf("%s @ sbus: cannot map registers\n", self->dv_xname);
135 return;
136 }
137 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[1].sbr_slot,
138 (bus_addr_t)sa->sa_reg[1].sbr_offset,
139 (bus_size_t)sa->sa_reg[1].sbr_size, 0, 0, &sc->sc_etx) != 0) {
140 printf("%s @ sbus: cannot map registers\n", self->dv_xname);
141 return;
142 }
143 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[2].sbr_slot,
144 (bus_addr_t)sa->sa_reg[2].sbr_offset,
145 (bus_size_t)sa->sa_reg[2].sbr_size, 0, 0, &sc->sc_erx) != 0) {
146 printf("%s @ sbus: cannot map registers\n", self->dv_xname);
147 return;
148 }
149 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[3].sbr_slot,
150 (bus_addr_t)sa->sa_reg[3].sbr_offset,
151 (bus_size_t)sa->sa_reg[3].sbr_size, 0, 0, &sc->sc_mac) != 0) {
152 printf("%s @ sbus: cannot map registers\n", self->dv_xname);
153 return;
154 }
155 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[4].sbr_slot,
156 (bus_addr_t)sa->sa_reg[4].sbr_offset,
157 (bus_size_t)sa->sa_reg[4].sbr_size, 0, 0, &sc->sc_mif) != 0) {
158 printf("%s @ sbus: cannot map registers\n", self->dv_xname);
159 return;
160 }
161
162 sd->sd_reset = (void *)hme_reset;
163 sbus_establish(sd, self);
164
165 if (OF_getprop(sa->sa_node, "local-mac-address",
166 sc->sc_enaddr, ETHER_ADDR_LEN) <= 0)
167 myetheraddr(sc->sc_enaddr);
168
169 /*
170 * Get transfer burst size from PROM and pass it on
171 * to the back-end driver.
172 */
173 sbusburst = ((struct sbus_softc *)parent)->sc_burst;
174 if (sbusburst == 0)
175 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */
176
177 burst = getpropint(node, "burst-sizes", -1);
178 if (burst == -1)
179 /* take SBus burst sizes */
180 burst = sbusburst;
181
182 /* Clamp at parent's burst sizes */
183 burst &= sbusburst;
184
185 /* Translate into plain numerical format */
186 sc->sc_burst = (burst & SBUS_BURST_32) ? 32 :
187 (burst & SBUS_BURST_16) ? 16 : 0;
188
189 sc->sc_pci = 0; /* XXXXX should all be done in bus_dma. */
190 hme_config(sc);
191
192 /* Establish interrupt handler */
193 if (sa->sa_nintr != 0)
194 (void)bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0,
195 hme_intr, sc, self->dv_xname);
196 }
197