1/*
2 * arch/sh/drivers/pci/ops-titan.c
3 *
4 * Ported to new API by Paul Mundt <lethal@linux-sh.org>
5 *
6 * Modified from ops-snapgear.c written by  David McCullough
7 * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
8 *
9 * May be copied or modified under the terms of the GNU General Public
10 * License.  See linux/COPYING for more information.
11 *
12 * PCI initialization for the Titan boards
13 */
14#include <linux/kernel.h>
15#include <linux/types.h>
16#include <linux/init.h>
17#include <linux/pci.h>
18#include <linux/io.h>
19#include <asm/titan.h>
20#include "pci-sh4.h"
21
22static char titan_irq_tab[] __initdata = {
23	TITAN_IRQ_WAN,
24	TITAN_IRQ_LAN,
25	TITAN_IRQ_MPCIA,
26	TITAN_IRQ_MPCIB,
27	TITAN_IRQ_USB,
28};
29
30int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
31{
32	int irq = titan_irq_tab[slot];
33
34	printk("PCI: Mapping TITAN IRQ for slot %d, pin %c to irq %d\n",
35		slot, pin - 1 + 'A', irq);
36
37	return irq;
38}
39
40static struct resource sh7751_io_resource = {
41	.name	= "SH7751_IO",
42	.start	= SH7751_PCI_IO_BASE,
43	.end	= SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1,
44	.flags	= IORESOURCE_IO
45};
46
47static struct resource sh7751_mem_resource = {
48	.name	= "SH7751_mem",
49	.start	= SH7751_PCI_MEMORY_BASE,
50	.end	= SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
51	.flags	= IORESOURCE_MEM
52};
53
54struct pci_channel board_pci_channels[] = {
55	{ &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
56	{ NULL, NULL, NULL, 0, 0 },
57};
58EXPORT_SYMBOL(board_pci_channels);
59
60static struct sh4_pci_address_map sh7751_pci_map = {
61	.window0	= {
62		.base	= SH7751_CS2_BASE_ADDR,
63		.size	= SH7751_MEM_REGION_SIZE*2,	/* cs2 and cs3 */
64	},
65
66	.window1	= {
67		.base	= SH7751_CS2_BASE_ADDR,
68		.size	= SH7751_MEM_REGION_SIZE*2,
69	},
70
71	.flags	= SH4_PCIC_NO_RESET,
72};
73
74int __init pcibios_init_platform(void)
75{
76	return sh7751_pcic_init(&sh7751_pci_map);
77}
78