| David Howells | b920de1 | 2008-02-08 04:19:31 -0800 | [diff] [blame^] | 1 | /* MN10300 On-board interrupt controller registers |
| 2 | * |
| 3 | * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. |
| 4 | * Written by David Howells (dhowells@redhat.com) |
| 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 | /* interrupt controller registers */ |
| 19 | #define GxICR(X) __SYSREG(0xd4000000 + (X) * 4, u16) /* group irq ctrl regs */ |
| 20 | |
| 21 | #define IAGR __SYSREG(0xd4000100, u16) /* intr acceptance group reg */ |
| 22 | #define IAGR_GN 0x00fc /* group number register |
| 23 | * (documentation _has_ to be wrong) |
| 24 | */ |
| 25 | |
| 26 | #define EXTMD __SYSREG(0xd4000200, u16) /* external pin intr spec reg */ |
| 27 | #define GET_XIRQ_TRIGGER(X) ((EXTMD >> ((X) * 2)) & 3) |
| 28 | |
| 29 | #define SET_XIRQ_TRIGGER(X,Y) \ |
| 30 | do { \ |
| 31 | u16 x = EXTMD; \ |
| 32 | x &= ~(3 << ((X) * 2)); \ |
| 33 | x |= ((Y) & 3) << ((X) * 2); \ |
| 34 | EXTMD = x; \ |
| 35 | } while (0) |
| 36 | |
| 37 | #define XIRQ_TRIGGER_LOWLEVEL 0 |
| 38 | #define XIRQ_TRIGGER_HILEVEL 1 |
| 39 | #define XIRQ_TRIGGER_NEGEDGE 2 |
| 40 | #define XIRQ_TRIGGER_POSEDGE 3 |
| 41 | |
| 42 | /* non-maskable interrupt control */ |
| 43 | #define NMIIRQ 0 |
| 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 */ |
| 48 | |
| 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 |
| 62 | |
| 63 | #ifndef __ASSEMBLY__ |
| 64 | extern void set_intr_level(int irq, u16 level); |
| 65 | extern void set_intr_postackable(int irq); |
| 66 | #endif |
| 67 | |
| 68 | /* external interrupts */ |
| 69 | #define XIRQxICR(X) GxICR((X)) /* external interrupt control regs */ |
| 70 | |
| 71 | #endif /* __KERNEL__ */ |
| 72 | |
| 73 | #endif /* _ASM_INTCTL_REGS_H */ |