[mirror_ubuntu-zesty-kernel.git] / drivers / ide / arm / ide_arm.c

/*
 * ARM default IDE host driver
 *
 * Copyright (C) 2004 Bartlomiej Zolnierkiewicz
 * Based on code by: Russell King, Ian Molton and Alexander Schulz.
 *
 * May be copied or modified under the terms of the GNU General Public License.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/ide.h>

#include <asm/mach-types.h>
#include <asm/irq.h>

#define DRV_NAME "ide_arm"

#ifdef CONFIG_ARCH_CLPS7500
# include <asm/arch/hardware.h>
#
# define IDE_ARM_IO	(ISASLOT_IO + 0x1f0)
# define IDE_ARM_IRQ	IRQ_ISA_14
#else
# define IDE_ARM_IO	0x1f0
# define IDE_ARM_IRQ	IRQ_HARDDISK
#endif

static int __init ide_arm_init(void)
{
	ide_hwif_t *hwif;
	hw_regs_t hw;
	unsigned long base = IDE_ARM_IO, ctl = IDE_ARM_IO + 0x206;
	u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };

	if (!request_region(base, 8, DRV_NAME)) {
		printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
				DRV_NAME, base, base + 7);
		return -EBUSY;
	}

	if (!request_region(ctl, 1, DRV_NAME)) {
		printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
				DRV_NAME, ctl);
		release_region(base, 8);
		return -EBUSY;
	}

	memset(&hw, 0, sizeof(hw));
	ide_std_init_ports(&hw, base, ctl);
	hw.irq = IDE_ARM_IRQ;

	hwif = ide_find_port();
	if (hwif) {
		ide_init_port_hw(hwif, &hw);
		hwif->mmio = 1;
		idx[0] = hwif->index;

		ide_device_add(idx, NULL);
	}

	return 0;
}

module_init(ide_arm_init);

MODULE_LICENSE("GPL");
Commit	Line	Data
1da177e4	1	/*
99eb8a55	2	* ARM default IDE host driver
1da177e4 LT	3	*
	4	* Copyright (C) 2004 Bartlomiej Zolnierkiewicz
	5	* Based on code by: Russell King, Ian Molton and Alexander Schulz.
	6	*
	7	* May be copied or modified under the terms of the GNU General Public License.
	8	*/
	9
	10	#include <linux/kernel.h>
	11	#include <linux/init.h>
	12	#include <linux/ide.h>
	13
	14	#include <asm/mach-types.h>
	15	#include <asm/irq.h>
	16
2305d943 BZ	17	#define DRV_NAME "ide_arm"
2305d943 BZ	18
1da177e4 LT	19	#ifdef CONFIG_ARCH_CLPS7500
	20	# include <asm/arch/hardware.h>
	21	#
	22	# define IDE_ARM_IO (ISASLOT_IO + 0x1f0)
	23	# define IDE_ARM_IRQ IRQ_ISA_14
	24	#else
	25	# define IDE_ARM_IO 0x1f0
	26	# define IDE_ARM_IRQ IRQ_HARDDISK
	27	#endif
	28
ade2daf9	29	static int __init ide_arm_init(void)
1da177e4	30	{
cbb010c1	31	ide_hwif_t *hwif;
99eb8a55	32	hw_regs_t hw;
2305d943	33	unsigned long base = IDE_ARM_IO, ctl = IDE_ARM_IO + 0x206;
8ac4ce74	34	u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
1da177e4	35
2305d943 BZ	36	if (!request_region(base, 8, DRV_NAME)) {
	37	printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
	38	DRV_NAME, base, base + 7);
	39	return -EBUSY;
	40	}
	41
	42	if (!request_region(ctl, 1, DRV_NAME)) {
	43	printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
	44	DRV_NAME, ctl);
	45	release_region(base, 8);
	46	return -EBUSY;
	47	}
	48
99eb8a55	49	memset(&hw, 0, sizeof(hw));
2305d943	50	ide_std_init_ports(&hw, base, ctl);
99eb8a55	51	hw.irq = IDE_ARM_IRQ;
cbb010c1	52
59bff5ba	53	hwif = ide_find_port();
cbb010c1	54	if (hwif) {
cbb010c1	55	ide_init_port_hw(hwif, &hw);
2305d943	56	hwif->mmio = 1;
8ac4ce74 BZ	57	idx[0] = hwif->index;
8ac4ce74 BZ	58
c413b9b9	59	ide_device_add(idx, NULL);
cbb010c1	60	}
ade2daf9 BZ	61
ade2daf9 BZ	62	return 0;
1da177e4	63	}
ade2daf9 BZ	64
ade2daf9 BZ	65	module_init(ide_arm_init);
57ad3ea0 AB	66
57ad3ea0 AB	67	MODULE_LICENSE("GPL");