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/*
* include/asm-arm/arch-ebsa110/irq.h
*
* Copyright (C) 1996,1997,1998 Russell King
*/
#define IRQ_MCLR ((volatile unsigned char *)0xf3000000)
#define IRQ_MSET ((volatile unsigned char *)0xf2c00000)
#define IRQ_MASK ((volatile unsigned char *)0xf2c00000)
static __inline__ void mask_and_ack_irq(unsigned int irq)
{
if (irq < 8)
*IRQ_MCLR = 1 << irq;
}
static __inline__ void mask_irq(unsigned int irq)
{
if (irq < 8)
*IRQ_MCLR = 1 << irq;
}
static __inline__ void unmask_irq(unsigned int irq)
{
if (irq < 8)
*IRQ_MSET = 1 << irq;
}
static __inline__ unsigned long get_enabled_irqs(void)
{
return 0;
}
static __inline__ void irq_init_irq(void)
{
unsigned long flags;
save_flags_cli (flags);
*IRQ_MCLR = 0xff;
*IRQ_MSET = 0x55;
*IRQ_MSET = 0x00;
if (*IRQ_MASK != 0x55)
while (1);
*IRQ_MCLR = 0xff; /* clear all interrupt enables */
restore_flags (flags);
}
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