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>
27 * Base of the IDE interface
30 #define ATA_HD_BASE 0xfff00000
33 * Offsets from the above base
36 #define ATA_HD_CONTROL 0x39
39 * falconide_intr_lock is used to obtain access to the IDE interrupt,
40 * which is shared between several drivers.
43 int falconide_intr_lock;
44 EXPORT_SYMBOL(falconide_intr_lock);
46 static void __init falconide_setup_ports(hw_regs_t *hw)
50 memset(hw, 0, sizeof(*hw));
52 hw->io_ports[IDE_DATA_OFFSET] = ATA_HD_BASE;
54 for (i = 1; i < 8; i++)
55 hw->io_ports[i] = ATA_HD_BASE + 1 + i * 4;
57 hw->io_ports[IDE_CONTROL_OFFSET] = ATA_HD_CONTROL;
59 hw->irq = IRQ_MFP_IDE;
64 * Probe for a Falcon IDE interface
67 static int __init falconide_init(void)
72 if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE))
75 printk(KERN_INFO "ide: Falcon IDE controller\n");
77 falconide_setup_ports(&hw);
79 hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]);
81 u8 index = hwif->index;
82 u8 idx[4] = { index, 0xff, 0xff, 0xff };
84 ide_init_port_data(hwif, index);
85 ide_init_port_hw(hwif, &hw);
87 ide_device_add(idx, NULL);
93 module_init(falconide_init);