sh: Support PCI IO access of SH7780 base boards.
[linux-2.6-block.git] / arch / sh / drivers / pci / ops-r7780rp.c
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1/*
2 * Author: Ian DaSilva (idasilva@mvista.com)
3 *
4 * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
5 *
6 * May be copied or modified under the terms of the GNU General Public
7 * License. See linux/COPYING for more information.
8 *
9 * PCI initialization for the Renesas SH7780 Highlander R7780RP-1 board
10 */
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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>
082c44d2 16#include <asm/r7780rp.h>
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17#include <asm/io.h>
18#include "pci-sh4.h"
5283ecb5 19
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20static char r7780rp_irq_tab[] __initdata = {
21 0, 1, 2, 3,
22};
23
24static char r7780mp_irq_tab[] __initdata = {
25 65, 66, 67, 68,
26};
27
959f85f8 28int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
5283ecb5 29{
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30 if (mach_is_r7780rp())
31 return r7780rp_irq_tab[slot];
39374aad 32 if (mach_is_r7780mp() || mach_is_r7785rp())
32351a28 33 return r7780mp_irq_tab[slot];
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34
35 printk(KERN_ERR "PCI: Bad IRQ mapping "
36 "request for slot %d, func %d\n", slot, pin-1);
37
38 return -1;
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39}
40
41static struct resource sh7780_io_resource = {
42 .name = "SH7780_IO",
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43 .start = SH7780_PCI_IO_BASE,
44 .end = SH7780_PCI_IO_BASE + SH7780_PCI_IO_SIZE - 1,
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45 .flags = IORESOURCE_IO
46};
47
48static struct resource sh7780_mem_resource = {
49 .name = "SH7780_mem",
50 .start = SH7780_PCI_MEMORY_BASE,
51 .end = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
52 .flags = IORESOURCE_MEM
53};
54
55extern struct pci_ops sh7780_pci_ops;
56
57struct pci_channel board_pci_channels[] = {
959f85f8 58 { &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff },
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59 { NULL, NULL, NULL, 0, 0 },
60};
61EXPORT_SYMBOL(board_pci_channels);
62
959f85f8 63static struct sh4_pci_address_map sh7780_pci_map = {
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64 .window0 = {
65 .base = SH7780_CS2_BASE_ADDR,
66 .size = 0x04000000,
67 },
68
69 .window1 = {
70 .base = SH7780_CS3_BASE_ADDR,
71 .size = 0x04000000,
72 },
73
959f85f8 74 .flags = SH4_PCIC_NO_RESET,
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75};
76
77int __init pcibios_init_platform(void)
78{
79 return sh7780_pcic_init(&sh7780_pci_map);
80}