pci_machdep.c revision 1.9 
1/*	$NetBSD: pci_machdep.c,v 1.9 2011/06/30 00:52:58 matt Exp $	*/
2
3/*
4 * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
5 * Copyright (c) 1994 Charles M. Hannum.  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 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Charles M. Hannum.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Machine-specific functions for PCI autoconfiguration.
35 *
36 * On PCs, there are two methods of generating PCI configuration cycles.
37 * We try to detect the appropriate mechanism for this machine and set
38 * up a few function pointers to access the correct method directly.
39 */
40
41#include <sys/cdefs.h>
42__KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.9 2011/06/30 00:52:58 matt Exp $");
43
44#include <sys/types.h>
45#include <sys/param.h>
46#include <sys/time.h>
47#include <sys/systm.h>
48#include <sys/errno.h>
49#include <sys/device.h>
50
51#define _POWERPC_BUS_DMA_PRIVATE
52#include <machine/bus.h>
53#include <machine/intr.h>
54#include <machine/platform.h>
55
56#include <powerpc/pio.h>
57
58#include <dev/isa/isavar.h>
59#include <dev/pci/pcivar.h>
60#include <dev/pci/pcireg.h>
61#include <dev/pci/pcidevs.h>
62
63#include <machine/pci_machdep.h>
64
65extern struct genppc_pci_chipset *genppc_pct;
66
67#define	PCI_MODE1_ADDRESS_REG	(PREP_BUS_SPACE_IO + 0xcf8)
68#define	PCI_MODE1_DATA_REG	(PREP_BUS_SPACE_IO + 0xcfc)
69
70void pci_intr_fixup(int, int, int *);
71
72void
73mvmeppc_pci_get_chipset_tag(pci_chipset_tag_t pc)
74{
75	pc->pc_conf_v = (void *)pc;
76
77	pc->pc_attach_hook = genppc_pci_indirect_attach_hook;
78	pc->pc_bus_maxdevs = genppc_pci_bus_maxdevs;
79	pc->pc_make_tag = genppc_pci_indirect_make_tag;
80	pc->pc_conf_read = genppc_pci_indirect_conf_read;
81	pc->pc_conf_write = genppc_pci_indirect_conf_write;
82
83	pc->pc_intr_v = (void *)pc;
84
85	pc->pc_intr_map = genppc_pci_intr_map;
86	pc->pc_intr_string = genppc_pci_intr_string;
87	pc->pc_intr_evcnt = genppc_pci_intr_evcnt;
88	pc->pc_intr_establish = genppc_pci_intr_establish;
89	pc->pc_intr_disestablish = genppc_pci_intr_disestablish;
90	pc->pc_intr_setattr = genppc_pci_intr_setattr;
91
92	pc->pc_conf_interrupt = mvmeppc_pci_conf_interrupt;
93	pc->pc_decompose_tag = genppc_pci_indirect_decompose_tag;
94	pc->pc_conf_hook = genppc_pci_conf_hook;
95
96	pc->pc_addr = mapiodev(PCI_MODE1_ADDRESS_REG, 4, false);
97	pc->pc_data = mapiodev(PCI_MODE1_DATA_REG, 4, false);
98	pc->pc_bus = 0;
99	pc->pc_node = 0;
100	pc->pc_memt = 0;
101	pc->pc_iot = 0;
102}
103
104void
105mvmeppc_pci_conf_interrupt(void *v, int bus, int dev, int pin,
106    int swiz, int *iline)
107{
108
109	(*platform->pci_intr_fixup)(bus, dev, iline);
110}
111