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intctl-regs.h
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1 /* MN10300 On-board interrupt controller registers
2  *
3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4  * Written by David Howells ([email protected])
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public Licence
8  * as published by the Free Software Foundation; either version
9  * 2 of the Licence, or (at your option) any later version.
10  */
11 #ifndef _ASM_INTCTL_REGS_H
12 #define _ASM_INTCTL_REGS_H
13 
14 #include <asm/cpu-regs.h>
15 
16 #ifdef __KERNEL__
17 
18 /*
19  * Interrupt controller registers
20  * - Registers 64-191 are at addresses offset from the main array
21  */
22 #define GxICR(X) \
23  __SYSREG(0xd4000000 + (X) * 4 + \
24  (((X) >= 64) && ((X) < 192)) * 0xf00, u16)
25 
26 #define GxICR_u8(X) \
27  __SYSREG(0xd4000000 + (X) * 4 + \
28  (((X) >= 64) && ((X) < 192)) * 0xf00, u8)
29 
30 #include <proc/intctl-regs.h>
31 
32 #define XIRQ_TRIGGER_LOWLEVEL 0
33 #define XIRQ_TRIGGER_HILEVEL 1
34 #define XIRQ_TRIGGER_NEGEDGE 2
35 #define XIRQ_TRIGGER_POSEDGE 3
36 
37 /* non-maskable interrupt control */
38 #define NMIIRQ 0
39 #define NMICR GxICR(NMIIRQ) /* NMI control register */
40 #define NMICR_NMIF 0x0001 /* NMI pin interrupt flag */
41 #define NMICR_WDIF 0x0002 /* watchdog timer overflow flag */
42 #define NMICR_ABUSERR 0x0008 /* async bus error flag */
43 
44 /* maskable interrupt control */
45 #define GxICR_DETECT 0x0001 /* interrupt detect flag */
46 #define GxICR_REQUEST 0x0010 /* interrupt request flag */
47 #define GxICR_ENABLE 0x0100 /* interrupt enable flag */
48 #define GxICR_LEVEL 0x7000 /* interrupt priority level */
49 #define GxICR_LEVEL_0 0x0000 /* - level 0 */
50 #define GxICR_LEVEL_1 0x1000 /* - level 1 */
51 #define GxICR_LEVEL_2 0x2000 /* - level 2 */
52 #define GxICR_LEVEL_3 0x3000 /* - level 3 */
53 #define GxICR_LEVEL_4 0x4000 /* - level 4 */
54 #define GxICR_LEVEL_5 0x5000 /* - level 5 */
55 #define GxICR_LEVEL_6 0x6000 /* - level 6 */
56 #define GxICR_LEVEL_SHIFT 12
57 #define GxICR_NMI 0x8000 /* nmi request flag */
58 
59 #define NUM2GxICR_LEVEL(num) ((num) << GxICR_LEVEL_SHIFT)
60 
61 #ifndef __ASSEMBLY__
62 extern void set_intr_level(int irq, u16 level);
63 extern void mn10300_set_lateack_irq_type(int irq);
64 #endif
65 
66 /* external interrupts */
67 #define XIRQxICR(X) GxICR((X)) /* external interrupt control regs */
68 
69 #endif /* __KERNEL__ */
70 
71 #endif /* _ASM_INTCTL_REGS_H */