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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/* $OpenBSD: if_ie_obio.c,v 1.6 2000/08/28 21:59:34 miod Exp $ */
/* $NetBSD: if_ie_obio.c,v 1.6 1996/11/20 18:56:51 gwr Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Gordon W. Ross.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 REGENTS 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.
*/
/*
* Machine-dependent glue for the Intel Ethernet (ie) driver.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <net/if.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <machine/dvma.h>
#include <machine/obio.h>
#include <machine/idprom.h>
#include <machine/vmparam.h>
#include <sparc/dev/i82586.h>
#include <sun3/dev/if_iereg.h>
#include <sun3/dev/if_ievar.h>
static void ie_obreset __P((struct ie_softc *));
static void ie_obattend __P((struct ie_softc *));
static void ie_obrun __P((struct ie_softc *));
/*
* New-style autoconfig attachment
*/
static int ie_obio_match __P((struct device *, void *, void *));
static void ie_obio_attach __P((struct device *, struct device *, void *));
struct cfattach ie_obio_ca = {
sizeof(struct ie_softc), ie_obio_match, ie_obio_attach
};
static int
ie_obio_match(parent, vcf, args)
struct device *parent;
void *vcf, *args;
{
struct confargs *ca = args;
/* Make sure there is something there... */
if (bus_peek(ca->ca_bustype, ca->ca_paddr, 1) == -1)
return (0);
/* Default interrupt priority. */
if (ca->ca_intpri == -1)
ca->ca_intpri = 3;
return (1);
}
void
ie_obio_attach(parent, self, args)
struct device *parent;
struct device *self;
void *args;
{
struct ie_softc *sc = (void *) self;
struct confargs *ca = args;
sc->hard_type = IE_OBIO;
sc->reset_586 = ie_obreset;
sc->chan_attn = ie_obattend;
sc->run_586 = ie_obrun;
sc->sc_bcopy = bcopy;
sc->sc_bzero = bzero;
/*
* The on-board "ie" just uses main memory, so
* we can choose how much memory to give it.
* XXX: Would like to use less than 64K...
*/
sc->sc_msize = 0x8000; /* MEMSIZE 32K */
/* Map in the control registers. */
sc->sc_reg = obio_alloc(ca->ca_paddr, sizeof(struct ieob));
/* Allocate "shared" memory (in DVMA space). */
sc->sc_maddr = dvma_malloc(sc->sc_msize);
if (sc->sc_maddr == NULL)
panic(": not enough dvma space");
/*
* The on-board "ie" is wired-up such that its
* memory access goes to the high 16 megabytes
* of the on-board memory space (on-board DVMA).
*/
sc->sc_iobase = (caddr_t)DVMA_OBIO_SLAVE_BASE;
/*
* Set the System Configuration Pointer (SCP).
* Its location is system-dependent because the
* i82586 reads it from a fixed physical address.
* On this hardware, the i82586 address maps to
* a 24-bit offset in on-board DVMA space. The
* SCP happens to fall in a page used by the
* PROM monitor, which the PROM knows about.
*/
sc->scp = (volatile void *) (sc->sc_iobase + IE_SCP_ADDR);
/*
* The rest of ram is used for buffers.
*/
sc->buf_area = sc->sc_maddr;
sc->buf_area_sz = sc->sc_msize;
/* Set the ethernet address. */
idprom_etheraddr(sc->sc_addr);
/* Do machine-independent parts of attach. */
ie_attach(sc);
/* Install interrupt handler. */
isr_add_autovect(ie_intr, (void *)sc, ca->ca_intpri);
}
/*
* onboard ie support
*/
void
ie_obreset(sc)
struct ie_softc *sc;
{
volatile struct ieob *ieo = (struct ieob *) sc->sc_reg;
ieo->obctrl = 0;
delay(100); /* XXX could be shorter? */
ieo->obctrl = IEOB_NORSET;
}
void
ie_obattend(sc)
struct ie_softc *sc;
{
volatile struct ieob *ieo = (struct ieob *) sc->sc_reg;
ieo->obctrl |= IEOB_ATTEN; /* flag! */
ieo->obctrl &= ~IEOB_ATTEN; /* down. */
}
void
ie_obrun(sc)
struct ie_softc *sc;
{
volatile struct ieob *ieo = (struct ieob *) sc->sc_reg;
ieo->obctrl |= (IEOB_ONAIR|IEOB_IENAB|IEOB_NORSET);
}
|
