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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __ASM_SH64_IRQ_H
2#define __ASM_SH64_IRQ_H
3
4/*
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 *
9 * include/asm-sh64/irq.h
10 *
11 * Copyright (C) 2000, 2001 Paolo Alberelli
12 *
13 */
14
Linus Torvalds1da177e2005-04-16 15:20:36 -070015
16/*
17 * Encoded IRQs are not considered worth to be supported.
18 * Main reason is that there's no per-encoded-interrupt
19 * enable/disable mechanism (as there was in SH3/4).
20 * An all enabled/all disabled is worth only if there's
21 * a cascaded IC to disable/enable/ack on. Until such
22 * IC is available there's no such support.
23 *
24 * Presumably Encoded IRQs may use extra IRQs beyond 64,
25 * below. Some logic must be added to cope with IRQ_IRL?
26 * in an exclusive way.
27 *
28 * Priorities are set at Platform level, when IRQ_IRL0-3
29 * are set to 0 Encoding is allowed. Otherwise it's not
30 * allowed.
31 */
32
33/* Independent IRQs */
34#define IRQ_IRL0 0
35#define IRQ_IRL1 1
36#define IRQ_IRL2 2
37#define IRQ_IRL3 3
38
39#define IRQ_INTA 4
40#define IRQ_INTB 5
41#define IRQ_INTC 6
42#define IRQ_INTD 7
43
44#define IRQ_SERR 12
45#define IRQ_ERR 13
46#define IRQ_PWR3 14
47#define IRQ_PWR2 15
48#define IRQ_PWR1 16
49#define IRQ_PWR0 17
50
51#define IRQ_DMTE0 18
52#define IRQ_DMTE1 19
53#define IRQ_DMTE2 20
54#define IRQ_DMTE3 21
55#define IRQ_DAERR 22
56
57#define IRQ_TUNI0 32
58#define IRQ_TUNI1 33
59#define IRQ_TUNI2 34
60#define IRQ_TICPI2 35
61
62#define IRQ_ATI 36
63#define IRQ_PRI 37
64#define IRQ_CUI 38
65
66#define IRQ_ERI 39
67#define IRQ_RXI 40
68#define IRQ_BRI 41
69#define IRQ_TXI 42
70
71#define IRQ_ITI 63
72
73#define NR_INTC_IRQS 64
74
75#ifdef CONFIG_SH_CAYMAN
76#define NR_EXT_IRQS 32
77#define START_EXT_IRQS 64
78
79/* PCI bus 2 uses encoded external interrupts on the Cayman board */
80#define IRQ_P2INTA (START_EXT_IRQS + (3*8) + 0)
81#define IRQ_P2INTB (START_EXT_IRQS + (3*8) + 1)
82#define IRQ_P2INTC (START_EXT_IRQS + (3*8) + 2)
83#define IRQ_P2INTD (START_EXT_IRQS + (3*8) + 3)
84
85#define I8042_KBD_IRQ (START_EXT_IRQS + 2)
86#define I8042_AUX_IRQ (START_EXT_IRQS + 6)
87
88#define IRQ_CFCARD (START_EXT_IRQS + 7)
89#define IRQ_PCMCIA (0)
90
91#else
92#define NR_EXT_IRQS 0
93#endif
94
95#define NR_IRQS (NR_INTC_IRQS+NR_EXT_IRQS)
96
97
98/* Default IRQs, fixed */
99#define TIMER_IRQ IRQ_TUNI0
100#define RTC_IRQ IRQ_CUI
101
102/* Default Priorities, Platform may choose differently */
103#define NO_PRIORITY 0 /* Disabled */
104#define TIMER_PRIORITY 2
105#define RTC_PRIORITY TIMER_PRIORITY
106#define SCIF_PRIORITY 3
107#define INTD_PRIORITY 3
108#define IRL3_PRIORITY 4
109#define INTC_PRIORITY 6
110#define IRL2_PRIORITY 7
111#define INTB_PRIORITY 9
112#define IRL1_PRIORITY 10
113#define INTA_PRIORITY 12
114#define IRL0_PRIORITY 13
115#define TOP_PRIORITY 15
116
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117extern int intc_evt_to_irq[(0xE20/0x20)+1];
118int intc_irq_describe(char* p, int irq);
119
120#define irq_canonicalize(irq) (irq)
121
122#ifdef CONFIG_SH_CAYMAN
123int cayman_irq_demux(int evt);
124int cayman_irq_describe(char* p, int irq);
125#define irq_demux(x) cayman_irq_demux(x)
126#define irq_describe(p, x) cayman_irq_describe(p, x)
127#else
128#define irq_demux(x) (intc_evt_to_irq[x])
129#define irq_describe(p, x) intc_irq_describe(p, x)
130#endif
131
132/*
133 * Function for "on chip support modules".
134 */
135
136/*
137 * SH-5 supports Priority based interrupts only.
138 * Interrupt priorities are defined at platform level.
139 */
140#define set_ipr_data(a, b, c, d)
141#define make_ipr_irq(a)
142#define make_imask_irq(a)
143
144#endif /* __ASM_SH64_IRQ_H */