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/*
* arch/arm/mach-clps7500/include/mach/irq.h
*
* Copyright (C) 1996 Russell King
* Copyright (C) 1999, 2001 Nexus Electronics Ltd.
*
* Changelog:
* 10-10-1996 RMK Brought up to date with arch-sa110eval
* 22-08-1998 RMK Restructured IRQ routines
* 11-08-1999 PJB Created ARM7500 version, derived from RiscPC code
*/
#include <asm/hardware/iomd.h>
#include <asm/io.h>
static inline int fixup_irq(unsigned int irq)
{
if (irq == IRQ_ISA) {
int isabits = *((volatile unsigned int *)0xe002b700);
if (isabits == 0) {
printk("Spurious ISA IRQ!\n");
return irq;
}
irq = IRQ_ISA_BASE;
while (!(isabits & 1)) {
irq++;
isabits >>= 1;
}
}
return irq;
}
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