linux/arch/mn10300/include/asm/irq.h
David Howells 6044cf1d94 MN10300: ASB2364: Handle the IRQ multiplexer in the FPGA
Handle the IRQ multiplexer in the FPGA by implementing a cascade interrupt
driver for it.

Signed-off-by: David Howells <dhowells@redhat.com>
2010-10-27 17:28:58 +01:00

41 lines
1.1 KiB
C

/* MN10300 Hardware interrupt definitions
*
* Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Modified by David Howells (dhowells@redhat.com)
* - Derived from include/asm-i386/irq.h:
* - (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#ifndef _ASM_IRQ_H
#define _ASM_IRQ_H
#include <asm/intctl-regs.h>
#include <asm/reset-regs.h>
#include <proc/irq.h>
/* this number is used when no interrupt has been assigned */
#define NO_IRQ INT_MAX
/*
* hardware irq numbers
* - the ASB2364 has an FPGA with an IRQ multiplexer on it
*/
#ifdef CONFIG_MN10300_UNIT_ASB2364
#include <unit/irq.h>
#else
#define NR_CPU_IRQS GxICR_NUM_IRQS
#define NR_IRQS NR_CPU_IRQS
#endif
/* external hardware irq numbers */
#define NR_XIRQS GxICR_NUM_XIRQS
#define irq_canonicalize(IRQ) (IRQ)
#endif /* _ASM_IRQ_H */