1/*
2 * arch/sh/drivers/pci/ops-landisk.c
3 *
4 * PCI initialization for the I-O DATA Device, Inc. LANDISK board
5 *
6 * Copyright (C) 2006 kogiidena
7 *
8 * May be copied or modified under the terms of the GNU General Public
9 * License.  See linux/COPYING for more information.
10 */
11#include <linux/kernel.h>
12#include <linux/types.h>
13#include <linux/init.h>
14#include <linux/delay.h>
15#include <linux/pci.h>
16#include "pci-sh4.h"
17
18static struct resource sh7751_io_resource = {
19	.name = "SH7751 IO",
20	.start = SH7751_PCI_IO_BASE,
21	.end = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1,
22	.flags = IORESOURCE_IO
23};
24
25static struct resource sh7751_mem_resource = {
26	.name = "SH7751 mem",
27	.start = SH7751_PCI_MEMORY_BASE,
28	.end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
29	.flags = IORESOURCE_MEM
30};
31
32struct pci_channel board_pci_channels[] = {
33	{&sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff},
34	{NULL, NULL, NULL, 0, 0},
35};
36
37static struct sh4_pci_address_map sh7751_pci_map = {
38	.window0 = {
39		.base	= SH7751_CS3_BASE_ADDR,
40		.size	= (64 << 20),	/* 64MB */
41	},
42
43	.flags = SH4_PCIC_NO_RESET,
44};
45
46int __init pcibios_init_platform(void)
47{
48	return sh7751_pcic_init(&sh7751_pci_map);
49}
50
51int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
52{
53	/*
54	 * slot0: pin1-4 = irq5,6,7,8
55	 * slot1: pin1-4 = irq6,7,8,5
56	 * slot2: pin1-4 = irq7,8,5,6
57	 * slot3: pin1-4 = irq8,5,6,7
58	 */
59	int irq = ((slot + pin - 1) & 0x3) + 5;
60
61	if ((slot | (pin - 1)) > 0x3) {
62		printk("PCI: Bad IRQ mapping request for slot %d pin %c\n",
63		       slot, pin - 1 + 'A');
64		return -1;
65	}
66	return irq;
67}
68