Subversion Repositories or1k_old

/*

 * 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);

}