1 /* $OpenBSD: if_hme_sbus.c,v 1.17 2022/03/13 13:34:54 mpi 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 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 /*
34 * SBus front-end device driver for the HME ethernet device.
35 */
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/syslog.h>
40 #include <sys/device.h>
41 #include <sys/malloc.h>
42 #include <sys/socket.h>
43
44 #include <net/if.h>
45 #include <net/if_media.h>
46
47 #include <netinet/in.h>
48 #include <netinet/if_ether.h>
49
50 #include <dev/mii/mii.h>
51 #include <dev/mii/miivar.h>
52
53 #include <machine/bus.h>
54 #include <machine/intr.h>
55 #include <machine/autoconf.h>
56
57 #include <dev/sbus/sbusvar.h>
58 #include <dev/ic/hmevar.h>
59 #include <dev/ofw/openfirm.h>
60
61 struct hmesbus_softc {
62 struct hme_softc hsc_hme; /* HME device */
63 };
64
65 int hmematch_sbus(struct device *, void *, void *);
66 void hmeattach_sbus(struct device *, struct device *, void *);
67
68 const struct cfattach hme_sbus_ca = {
69 sizeof(struct hmesbus_softc), hmematch_sbus, hmeattach_sbus
70 };
71
72 int
hmematch_sbus(struct device * parent,void * vcf,void * aux)73 hmematch_sbus(struct device *parent, void *vcf, void *aux)
74 {
75 struct cfdata *cf = vcf;
76 struct sbus_attach_args *sa = aux;
77
78 return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0 ||
79 strcmp("SUNW,qfe", sa->sa_name) == 0 ||
80 strcmp("SUNW,hme", sa->sa_name) == 0);
81 }
82
83 void
hmeattach_sbus(struct device * parent,struct device * self,void * aux)84 hmeattach_sbus(struct device *parent, struct device *self, void *aux)
85 {
86 struct sbus_attach_args *sa = aux;
87 struct hmesbus_softc *hsc = (void *)self;
88 struct hme_softc *sc = &hsc->hsc_hme;
89 u_int32_t burst, sbusburst;
90 /* XXX the following declaration should be elsewhere */
91 extern void myetheraddr(u_char *);
92
93 /* Pass on the bus tags */
94 sc->sc_bustag = sa->sa_bustag;
95 sc->sc_dmatag = sa->sa_dmatag;
96
97 if (sa->sa_nintr < 1) {
98 printf(": no interrupt\n");
99 return;
100 }
101
102 if (sa->sa_nreg < 5) {
103 printf(": only %d register sets\n", sa->sa_nreg);
104 return;
105 }
106
107 /*
108 * Map five register banks:
109 *
110 * bank 0: HME SEB registers
111 * bank 1: HME ETX registers
112 * bank 2: HME ERX registers
113 * bank 3: HME MAC registers
114 * bank 4: HME MIF registers
115 *
116 */
117 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
118 (bus_addr_t)sa->sa_reg[0].sbr_offset,
119 (bus_size_t)sa->sa_reg[0].sbr_size, 0, 0, &sc->sc_seb) != 0) {
120 printf(": can't map registers\n");
121 return;
122 }
123 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[1].sbr_slot,
124 (bus_addr_t)sa->sa_reg[1].sbr_offset,
125 (bus_size_t)sa->sa_reg[1].sbr_size, 0, 0, &sc->sc_etx) != 0) {
126 printf(": can't map registers\n");
127 return;
128 }
129 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[2].sbr_slot,
130 (bus_addr_t)sa->sa_reg[2].sbr_offset,
131 (bus_size_t)sa->sa_reg[2].sbr_size, 0, 0, &sc->sc_erx) != 0) {
132 printf(": can't map registers\n");
133 return;
134 }
135 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[3].sbr_slot,
136 (bus_addr_t)sa->sa_reg[3].sbr_offset,
137 (bus_size_t)sa->sa_reg[3].sbr_size, 0, 0, &sc->sc_mac) != 0) {
138 printf(": can't map registers\n");
139 return;
140 }
141 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[4].sbr_slot,
142 (bus_addr_t)sa->sa_reg[4].sbr_offset,
143 (bus_size_t)sa->sa_reg[4].sbr_size, 0, 0, &sc->sc_mif) != 0) {
144 printf(": can't map registers\n");
145 return;
146 }
147
148 if (OF_getprop(sa->sa_node, "local-mac-address",
149 sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0)
150 myetheraddr(sc->sc_arpcom.ac_enaddr);
151
152 /*
153 * Get transfer burst size from PROM and pass it on
154 * to the back-end driver.
155 */
156 sbusburst = ((struct sbus_softc *)parent)->sc_burst;
157 if (sbusburst == 0)
158 sbusburst = SBUS_BURST_32 - 1; /* 1->16 */
159
160 burst = getpropint(sa->sa_node, "burst-sizes", -1);
161 if (burst == -1)
162 /* take SBus burst sizes */
163 burst = sbusburst;
164
165 /* Clamp at parent's burst sizes */
166 burst &= sbusburst;
167
168 /* Translate into plain numerical format */
169 if ((burst & SBUS_BURST_64))
170 sc->sc_burst = 64;
171 else if ((burst & SBUS_BURST_32))
172 sc->sc_burst = 32;
173 else if ((burst & SBUS_BURST_16))
174 sc->sc_burst = 16;
175 else
176 sc->sc_burst = 0;
177
178 sc->sc_pci = 0; /* XXXXX should all be done in bus_dma. */
179
180 /* Establish interrupt handler */
181 bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0, hme_intr,
182 sc, self->dv_xname);
183
184 hme_config(sc);
185 }
186