1 /* $NetBSD: p5membar.c,v 1.5 2023/12/20 00:40:42 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2012 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Radoslaw Kujawa.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /*
33 * Handle autoconfigured PCI resources on some revisions of CyberVision PPC,
34 * BlizzardVision PPC graphics cards and all G-REX PCI busboards.
35 */
36
37 #include <sys/types.h>
38 #include <sys/param.h>
39 #include <sys/time.h>
40 #include <sys/systm.h>
41 #include <sys/errno.h>
42 #include <sys/device.h>
43
44 #include <uvm/uvm_extern.h>
45
46 #include <machine/bus.h>
47 #include <machine/cpu.h>
48
49 #include <m68k/bus_dma.h>
50 #include <amiga/dev/zbusvar.h>
51 #include <amiga/pci/p5pbreg.h>
52 #include <amiga/pci/p5pbvar.h>
53 #include <amiga/pci/p5membarvar.h>
54
55 /* Zorro IDs */
56 #define ZORRO_MANID_P5 8512
57 #define ZORRO_PRODID_P5PB 101 /* CVPPC/BVPPC/G-REX */
58
59 static int p5membar_match(device_t, cfdata_t, void *);
60 static void p5membar_attach(device_t, device_t, void *);
61
62 CFATTACH_DECL_NEW(p5membar, sizeof(struct p5membar_softc),
63 p5membar_match, p5membar_attach, NULL, NULL);
64
65 static int
p5membar_match(device_t parent,cfdata_t cf,void * aux)66 p5membar_match(device_t parent, cfdata_t cf, void *aux)
67 {
68 struct zbus_args *zap;
69
70 zap = aux;
71
72 if (zap->manid != ZORRO_MANID_P5)
73 return 0;
74
75 if (zap->prodid != ZORRO_PRODID_P5PB)
76 return 0;
77
78 return 1;
79 }
80
81 static void
p5membar_attach(device_t parent,device_t self,void * aux)82 p5membar_attach(device_t parent, device_t self, void *aux)
83 {
84 struct zbus_args *zap;
85 struct p5membar_softc *sc;
86
87 sc = device_private(self);
88 zap = aux;
89
90 sc->sc_dev = self;
91 sc->sc_base = zap->pa;
92 sc->sc_size = zap->size;
93
94 if ((bus_addr_t) zap->pa == P5BUS_PCI_CONF_BASE) {
95 aprint_normal(": PCI config area, %d kB\n",
96 zap->size / 1024);
97 sc->sc_type = P5MEMBAR_TYPE_INTERNAL;
98 } else if ((bus_addr_t) zap->pa == P5BUS_PCI_IO_BASE) {
99 aprint_normal(": PCI I/O area, %d kB\n",
100 zap->size / 1024);
101 sc->sc_type = P5MEMBAR_TYPE_INTERNAL;
102 } else if ((bus_addr_t) zap->pa == P5BUS_BRIDGE_BASE) {
103 aprint_normal(": PCI bridge, %d kB\n",
104 zap->size / 1024);
105 sc->sc_type = P5MEMBAR_TYPE_INTERNAL;
106 } else {
107 aprint_normal(": PCI memory BAR, %d kB\n",
108 zap->size / 1024);
109 sc->sc_type = P5MEMBAR_TYPE_MEMORY;
110 }
111
112 /*
113 * Do nothing here, p5pb should find the p5membar devices
114 * and do the right(tm) thing.
115 */
116
117 }
118
119