2 * Atari Falcon IDE Driver
4 * Created 12 Jul 1997 by Geert Uytterhoeven
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive for
11 #include <linux/module.h>
12 #include <linux/types.h>
14 #include <linux/interrupt.h>
15 #include <linux/blkdev.h>
16 #include <linux/hdreg.h>
17 #include <linux/ide.h>
18 #include <linux/init.h>
20 #include <asm/setup.h>
21 #include <asm/atarihw.h>
22 #include <asm/atariints.h>
23 #include <asm/atari_stdma.h>
25 #define DRV_NAME "falconide"
28 * Base of the IDE interface
31 #define ATA_HD_BASE 0xfff00000
34 * Offsets from the above base
37 #define ATA_HD_CONTROL 0x39
40 * falconide_intr_lock is used to obtain access to the IDE interrupt,
41 * which is shared between several drivers.
44 int falconide_intr_lock;
45 EXPORT_SYMBOL(falconide_intr_lock);
47 static void __init falconide_setup_ports(hw_regs_t *hw)
51 memset(hw, 0, sizeof(*hw));
53 hw->io_ports[IDE_DATA_OFFSET] = ATA_HD_BASE;
55 for (i = 1; i < 8; i++)
56 hw->io_ports[i] = ATA_HD_BASE + 1 + i * 4;
58 hw->io_ports[IDE_CONTROL_OFFSET] = ATA_HD_BASE + ATA_HD_CONTROL;
60 hw->irq = IRQ_MFP_IDE;
65 * Probe for a Falcon IDE interface
68 static int __init falconide_init(void)
73 if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE))
76 printk(KERN_INFO "ide: Falcon IDE controller\n");
78 if (!request_mem_region(ATA_HD_BASE, 0x40, DRV_NAME)) {
79 printk(KERN_ERR "%s: resources busy\n", DRV_NAME);
83 falconide_setup_ports(&hw);
85 hwif = ide_find_port();
87 u8 index = hwif->index;
88 u8 idx[4] = { index, 0xff, 0xff, 0xff };
90 ide_init_port_data(hwif, index);
91 ide_init_port_hw(hwif, &hw);
93 ide_get_lock(NULL, NULL);
94 ide_device_add(idx, NULL);
101 module_init(falconide_init);
103 MODULE_LICENSE("GPL");