1/*
2 * linux/arch/sh/boards/se/770x/irq.c
3 *
4 * Copyright (C) 2000  Kazumoto Kojima
5 * Copyright (C) 2006  Nobuhiro Iwamatsu
6 *
7 * Hitachi SolutionEngine Support.
8 *
9 */
10
11#include <linux/init.h>
12#include <linux/interrupt.h>
13#include <linux/irq.h>
14#include <asm/irq.h>
15#include <asm/io.h>
16#include <mach-se/mach/se.h>
17
18static struct ipr_data ipr_irq_table[] = {
19	/*
20	* Super I/O (Just mimic PC):
21	*  1: keyboard
22	*  3: serial 0
23	*  4: serial 1
24	*  5: printer
25	*  6: floppy
26	*  8: rtc
27	* 12: mouse
28	* 14: ide0
29	*/
30#if defined(CONFIG_CPU_SUBTYPE_SH7705)
31	/* This is default value */
32	{ 13, 0, 8,  0x0f-13, },
33	{ 5 , 0, 4,  0x0f- 5, },
34	{ 10, 1, 0,  0x0f-10, },
35	{ 7 , 2, 4,  0x0f- 7, },
36	{ 3 , 2, 0,  0x0f- 3, },
37	{ 1 , 3, 12, 0x0f- 1, },
38	{ 12, 3, 4,  0x0f-12, }, /* LAN */
39	{ 2 , 4, 8,  0x0f- 2, }, /* PCIRQ2 */
40	{ 6 , 4, 4,  0x0f- 6, }, /* PCIRQ1 */
41	{ 14, 4, 0,  0x0f-14, }, /* PCIRQ0 */
42	{ 0 , 5, 12, 0x0f   , },
43	{ 4 , 5, 4,  0x0f- 4, },
44	{ 8 , 6, 12, 0x0f- 8, },
45	{ 9 , 6, 8,  0x0f- 9, },
46	{ 11, 6, 4,  0x0f-11, },
47#else
48	{ 14, 0,  8, 0x0f-14, },
49	{ 12, 0,  4, 0x0f-12, },
50	{  8, 1,  4, 0x0f- 8, },
51	{  6, 2, 12, 0x0f- 6, },
52	{  5, 2,  8, 0x0f- 5, },
53	{  4, 2,  4, 0x0f- 4, },
54	{  3, 2,  0, 0x0f- 3, },
55	{  1, 3, 12, 0x0f- 1, },
56#if defined(CONFIG_STNIC)
57	/* ST NIC */
58	{ 10, 3,  4, 0x0f-10, }, 	/* LAN */
59#endif
60	/* MRSHPC IRQs setting */
61	{  0, 4, 12, 0x0f- 0, },	/* PCIRQ3 */
62	{ 11, 4,  8, 0x0f-11, }, 	/* PCIRQ2 */
63	{  9, 4,  4, 0x0f- 9, }, 	/* PCIRQ1 */
64	{  7, 4,  0, 0x0f- 7, }, 	/* PCIRQ0 */
65	/* #2, #13 are allocated for SLOT IRQ #1 and #2 (for now) */
66	/* NOTE: #2 and #13 are not used on PC */
67	{ 13, 6,  4, 0x0f-13, }, 	/* SLOTIRQ2 */
68	{  2, 6,  0, 0x0f- 2, }, 	/* SLOTIRQ1 */
69#endif
70};
71
72static unsigned long ipr_offsets[] = {
73	BCR_ILCRA,
74	BCR_ILCRB,
75	BCR_ILCRC,
76	BCR_ILCRD,
77	BCR_ILCRE,
78	BCR_ILCRF,
79	BCR_ILCRG,
80};
81
82static struct ipr_desc ipr_irq_desc = {
83	.ipr_offsets	= ipr_offsets,
84	.nr_offsets	= ARRAY_SIZE(ipr_offsets),
85
86	.ipr_data	= ipr_irq_table,
87	.nr_irqs	= ARRAY_SIZE(ipr_irq_table),
88	.chip = {
89		.name	= "IPR-se770x",
90	},
91};
92
93/*
94 * Initialize IRQ setting
95 */
96void __init init_se_IRQ(void)
97{
98	/* Disable all interrupts */
99	__raw_writew(0, BCR_ILCRA);
100	__raw_writew(0, BCR_ILCRB);
101	__raw_writew(0, BCR_ILCRC);
102	__raw_writew(0, BCR_ILCRD);
103	__raw_writew(0, BCR_ILCRE);
104	__raw_writew(0, BCR_ILCRF);
105	__raw_writew(0, BCR_ILCRG);
106
107	register_ipr_controller(&ipr_irq_desc);
108}
109