1/*
2 * PCI support for SBS Palomar IV
3 *
4 * Author: Dan Cox
5 *
6 * 2002 (c) MontaVista, Software, Inc.  This file is licensed under
7 * the terms of the GNU General Public License version 2.  This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/pci.h>
15
16#include <asm/byteorder.h>
17#include <asm/machdep.h>
18#include <asm/io.h>
19#include <asm/pci-bridge.h>
20#include <asm/uaccess.h>
21
22#include <syslib/cpc700.h>
23
24#include "pal4.h"
25
26/* not much to this.... */
27static inline int __init
28pal4_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
29{
30	if (idsel == 9)
31		return PAL4_ETH;
32	else
33		return PAL4_INTA + (idsel - 3);
34}
35
36void __init
37pal4_find_bridges(void)
38{
39	struct pci_controller *hose;
40
41	hose = pcibios_alloc_controller();
42	if (!hose)
43		return;
44
45	hose->first_busno = 0;
46	hose->last_busno = 0xff;
47	hose->pci_mem_offset = 0;
48
49	/* Could snatch these from the CPC700.... */
50	pci_init_resource(&hose->io_resource,
51			  0x0,
52			  0x03ffffff,
53			  IORESOURCE_IO,
54			  "PCI host bridge");
55
56	pci_init_resource(&hose->mem_resources[0],
57			  0x90000000,
58			  0x9fffffff,
59			  IORESOURCE_MEM,
60			  "PCI host bridge");
61
62	hose->io_space.start = 0x00800000;
63	hose->io_space.end = 0x03ffffff;
64	hose->mem_space.start = 0x90000000;
65	hose->mem_space.end = 0x9fffffff;
66	hose->io_base_virt = (void *) 0xf8000000;
67
68	setup_indirect_pci(hose, CPC700_PCI_CONFIG_ADDR,
69			   CPC700_PCI_CONFIG_DATA);
70
71	hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
72
73	ppc_md.pci_swizzle = common_swizzle;
74	ppc_md.pci_map_irq = pal4_map_irq;
75}
76