1 /* MN10300 On-board interrupt controller registers
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
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.
11 #ifndef _ASM_INTCTL_REGS_H
12 #define _ASM_INTCTL_REGS_H
14 #include <asm/cpu-regs.h>
18 /* interrupt controller registers */
19 #define GxICR(X) __SYSREG(0xd4000000 + (X) * 4, u16) /* group irq ctrl regs */
21 #define IAGR __SYSREG(0xd4000100, u16) /* intr acceptance group reg */
22 #define IAGR_GN 0x00fc /* group number register
23 * (documentation _has_ to be wrong)
26 #define EXTMD __SYSREG(0xd4000200, u16) /* external pin intr spec reg */
27 #define GET_XIRQ_TRIGGER(X) ((EXTMD >> ((X) * 2)) & 3)
29 #define SET_XIRQ_TRIGGER(X,Y) \
32 x &= ~(3 << ((X) * 2)); \
33 x |= ((Y) & 3) << ((X) * 2); \
37 #define XIRQ_TRIGGER_LOWLEVEL 0
38 #define XIRQ_TRIGGER_HILEVEL 1
39 #define XIRQ_TRIGGER_NEGEDGE 2
40 #define XIRQ_TRIGGER_POSEDGE 3
42 /* non-maskable interrupt control */
44 #define NMICR GxICR(NMIIRQ) /* NMI control register */
45 #define NMICR_NMIF 0x0001 /* NMI pin interrupt flag */
46 #define NMICR_WDIF 0x0002 /* watchdog timer overflow flag */
47 #define NMICR_ABUSERR 0x0008 /* async bus error flag */
49 /* maskable interrupt control */
50 #define GxICR_DETECT 0x0001 /* interrupt detect flag */
51 #define GxICR_REQUEST 0x0010 /* interrupt request flag */
52 #define GxICR_ENABLE 0x0100 /* interrupt enable flag */
53 #define GxICR_LEVEL 0x7000 /* interrupt priority level */
54 #define GxICR_LEVEL_0 0x0000 /* - level 0 */
55 #define GxICR_LEVEL_1 0x1000 /* - level 1 */
56 #define GxICR_LEVEL_2 0x2000 /* - level 2 */
57 #define GxICR_LEVEL_3 0x3000 /* - level 3 */
58 #define GxICR_LEVEL_4 0x4000 /* - level 4 */
59 #define GxICR_LEVEL_5 0x5000 /* - level 5 */
60 #define GxICR_LEVEL_6 0x6000 /* - level 6 */
61 #define GxICR_LEVEL_SHIFT 12
64 extern void set_intr_level(int irq, u16 level);
65 extern void set_intr_postackable(int irq);
68 /* external interrupts */
69 #define XIRQxICR(X) GxICR((X)) /* external interrupt control regs */
71 #endif /* __KERNEL__ */
73 #endif /* _ASM_INTCTL_REGS_H */