1/*
2 * linux/arch/sh/drivers/pci/ops-se7780.c
3 *
4 * Copyright (C) 2006  Nobuhiro Iwamatsu
5 *
6 * PCI initialization for the Hitachi UL Solution Engine 7780SE03
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 <asm/se7780.h>
17#include <asm/io.h>
18#include "pci-sh4.h"
19
20/*
21 * IDSEL = AD16  PCI slot
22 * IDSEL = AD17  PCI slot
23 * IDSEL = AD18  Serial ATA Controller (Silicon Image SiL3512A)
24 * IDSEL = AD19  USB Host Controller (NEC uPD7210100A)
25 */
26
27/* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */
28static char se7780_irq_tab[4][16] __initdata = {
29	/* INTA */
30	{ 65, 68, 67, 68, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
31	/* INTB */
32	{ 66, 65, -1, 65, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
33	/* INTC */
34	{ 67, 66, -1, 66, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
35	/* INTD */
36	{ 68, 67, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
37};
38
39int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
40{
41       return se7780_irq_tab[pin-1][slot];
42}
43
44static struct resource se7780_io_resource = {
45	.name	= "SH7780_IO",
46	.start	= 0x2000,
47	.end	= 0x2000 + SH7780_PCI_IO_SIZE - 1,
48	.flags	= IORESOURCE_IO
49};
50
51static struct resource se7780_mem_resource = {
52	.name	= "SH7780_mem",
53	.start	= SH7780_PCI_MEMORY_BASE,
54	.end	= SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
55	.flags	= IORESOURCE_MEM
56};
57
58extern struct pci_ops se7780_pci_ops;
59
60struct pci_channel board_pci_channels[] = {
61	{ &sh4_pci_ops, &se7780_io_resource, &se7780_mem_resource, 0, 0xff },
62	{ NULL, NULL, NULL, 0, 0 },
63};
64EXPORT_SYMBOL(board_pci_channels);
65
66static struct sh4_pci_address_map se7780_pci_map = {
67	.window0	= {
68		.base	= SH7780_CS2_BASE_ADDR,
69		.size	= 0x04000000,
70	},
71	.flags  = SH4_PCIC_NO_RESET,
72};
73
74int __init pcibios_init_platform(void)
75{
76	printk("SH7780 PCI: Finished initialization of the PCI controller\n");
77
78	/*
79	 * FPGA PCISEL register initialize
80	 *
81	 *  CPU  || SLOT1 | SLOT2 | S-ATA | USB
82	 *  -------------------------------------
83	 *  INTA || INTA  | INTD  |  --   | INTB
84	 *  -------------------------------------
85	 *  INTB || INTB  | INTA  |  --   | INTC
86	 *  -------------------------------------
87	 *  INTC || INTC  | INTB  | INTA  |  --
88	 *  -------------------------------------
89	 *  INTD || INTD  | INTC  |  --   | INTA
90	 *  -------------------------------------
91	 */
92	ctrl_outw(0x0013, FPGA_PCI_INTSEL1);
93	ctrl_outw(0xE402, FPGA_PCI_INTSEL2);
94
95	return sh7780_pcic_init(&se7780_pci_map);
96}
97