1/*
2 *  linux/include/asm-arm/arch-rpc/ide.h
3 *
4 *  Copyright (C) 1997 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 *  Modifications:
11 *   29-07-1998	RMK	Major re-work of IDE architecture specific code
12 */
13#include <asm/irq.h>
14
15/*
16 * Set up a hw structure for a specified data port, control port and IRQ.
17 * This should follow whatever the default interface uses.
18 */
19static __inline__ void
20ide_init_hwif_ports(hw_regs_t *hw, int data_port, int ctrl_port, int *irq)
21{
22	ide_ioreg_t reg = (ide_ioreg_t) data_port;
23	int i;
24
25	memset(hw, 0, sizeof(*hw));
26
27	for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
28		hw->io_ports[i] = reg;
29		reg += 1;
30	}
31	hw->io_ports[IDE_CONTROL_OFFSET] = (ide_ioreg_t) ctrl_port;
32	if (irq)
33		*irq = 0;
34}
35
36/*
37 * This registers the standard ports for this architecture with the IDE
38 * driver.
39 */
40static __inline__ void
41ide_init_default_hwifs(void)
42{
43	hw_regs_t hw;
44
45	ide_init_hwif_ports(&hw, 0x1f0, 0x3f6, NULL);
46	hw.irq = IRQ_HARDDISK;
47	ide_register_hw(&hw, NULL);
48}
49