1 /* $NetBSD: vme_machdep.c,v 1.24 2022/06/26 05:16:22 tsutsui Exp $ */
2
3 /*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: vme_machdep.c,v 1.24 2022/06/26 05:16:22 tsutsui Exp $");
31
32 #include <sys/types.h>
33 #include <sys/param.h>
34 #include <sys/time.h>
35 #include <sys/systm.h>
36 #include <sys/errno.h>
37 #include <sys/device.h>
38
39 #include <uvm/uvm_extern.h>
40
41 #include <sys/bus.h>
42 #include <machine/cpu.h>
43 #include <machine/iomap.h>
44 #include <machine/mfp.h>
45
46 #include <atari/atari/device.h>
47 #include <atari/vme/vmevar.h>
48
49 static int vmebusprint(void *, const char *);
50 static int vmebusmatch(device_t, cfdata_t, void *);
51 static void vmebusattach(device_t, device_t, void *);
52
53 CFATTACH_DECL_NEW(avmebus, 0,
54 vmebusmatch, vmebusattach, NULL, NULL);
55
56 static int vmebus_attached;
57
58 static int
vmebusmatch(device_t parent,cfdata_t cf,void * aux)59 vmebusmatch(device_t parent, cfdata_t cf, void *aux)
60 {
61
62 if (atari_realconfig == 0)
63 return 0;
64 if (strcmp((char *)aux, "avmebus") || vmebus_attached)
65 return 0;
66 return ((machineid & ATARI_FALCON) != 0) ? 0 : 1;
67 }
68
69 static void
vmebusattach(device_t parent,device_t self,void * aux)70 vmebusattach(device_t parent, device_t self, void *aux)
71 {
72 struct vmebus_attach_args vba;
73
74 vmebus_attached = 1;
75
76 vba.vba_busname = "vme";
77 vba.vba_iot = beb_alloc_bus_space_tag(NULL);
78 vba.vba_memt = beb_alloc_bus_space_tag(NULL);
79 if ((vba.vba_iot == NULL) || (vba.vba_memt == NULL)) {
80 aprint_error("beb_alloc_bus_space_tag failed!\n");
81 return;
82 }
83
84 /*
85 * XXX: Should we use zero or the actual (phys) start of VME memory.
86 */
87 vba.vba_iot->base = 0;
88 vba.vba_memt->base = 0;
89
90 aprint_normal("\n");
91 config_found(self, &vba, vmebusprint, CFARGS_NONE);
92 }
93
94 static int
vmebusprint(void * aux,const char * name)95 vmebusprint(void *aux, const char *name)
96 {
97
98 if (name == NULL)
99 return UNCONF;
100 return QUIET;
101 }
102