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/*

 *  linux/include/asm-arm/arch-arc/ide.h

 *

 *  Copyright (C) 1997,1998 Russell King

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 *  IDE definitions for the Acorn Archimedes/A5000

 *  architecture

 *

 *  Modifications:

 *   04-04-1998 PJB     Merged `arc' and `a5k' versions

 *   01-07-1998 RMK     Added new ide_ioregspec_t

 *   29-07-1998 RMK     Major re-work of IDE architecture specific code

 */

#include <asm/irq.h>

#include <asm/mach-types.h>

/*

 * Set up a hw structure for a specified data port, control port and IRQ.

 * This should follow whatever the default interface uses.

 */

static __inline__ void

ide_init_hwif_ports(hw_regs_t *hw, int data_port, int ctrl_port, int *irq)

{

        ide_ioreg_t reg = (ide_ioreg_t) data_port;

        int i;

        for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {

                hw->io_ports[i] = reg;

                reg += 1;

        }

        hw->io_ports[IDE_CONTROL_OFFSET] = (ide_ioreg_t) ctrl_port;

        if (irq)

                *irq = 0;

}

/*

 * This registers the standard ports for this architecture with the IDE

 * driver.

 */

static __inline__ void ide_init_default_hwifs(void)

{

        if (machine_is_a5k()) {

                hw_regs_t hw;

                memset(&hw, 0, sizeof(hw));

                ide_init_hwif_ports(&hw, 0x1f0, 0x3f6, NULL);

                hw.irq = IRQ_HARDDISK;

                ide_register_hw(&hw, NULL);

        }

}