projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 58f189fc | 2 | * Atari Falcon IDE Driver |
| 1da177e4 LT |
3 | * |
| 4 | * Created 12 Jul 1997 by Geert Uytterhoeven | |
| 5 | * | |
| 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 | |
| 8 | * more details. | |
| 9 | */ | |
| 10 | ||
| 88f8bb78 | 11 | #include <linux/module.h> |
| 1da177e4 LT |
12 | #include <linux/types.h> |
| 13 | #include <linux/mm.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> | |
| 19 | ||
| 20 | #include <asm/setup.h> | |
| 21 | #include <asm/atarihw.h> | |
| 22 | #include <asm/atariints.h> | |
| 23 | #include <asm/atari_stdma.h> | |
| 24 | ||
| 25 | ||
| 26 | /* | |
| 27 | * Base of the IDE interface | |
| 28 | */ | |
| 29 | ||
| 30 | #define ATA_HD_BASE 0xfff00000 | |
| 31 | ||
| 32 | /* | |
| 33 | * Offsets from the above base | |
| 34 | */ | |
| 35 | ||
| 1da177e4 LT |
36 | #define ATA_HD_CONTROL 0x39 |
| 37 | ||
| 1da177e4 LT |
38 | /* |
| 39 | * falconide_intr_lock is used to obtain access to the IDE interrupt, | |
| 40 | * which is shared between several drivers. | |
| 41 | */ | |
| 42 | ||
| 43 | int falconide_intr_lock; | |
| 88f8bb78 | 44 | EXPORT_SYMBOL(falconide_intr_lock); |
| 1da177e4 | 45 | |
| 29dd5975 BZ |
46 | static void __init falconide_setup_ports(hw_regs_t *hw) |
| 47 | { | |
| 48 | int i; | |
| 49 | ||
| 50 | memset(hw, 0, sizeof(*hw)); | |
| 51 | ||
| 52 | hw->io_ports[IDE_DATA_OFFSET] = ATA_HD_BASE; | |
| 53 | ||
| 54 | for (i = 1; i < 8; i++) | |
| 55 | hw->io_ports[i] = ATA_HD_BASE + 1 + i * 4; | |
| 56 | ||
| 899e1bc5 | 57 | hw->io_ports[IDE_CONTROL_OFFSET] = ATA_HD_BASE + ATA_HD_CONTROL; |
| 29dd5975 BZ |
58 | |
| 59 | hw->irq = IRQ_MFP_IDE; | |
| 60 | hw->ack_intr = NULL; | |
| 61 | } | |
| 1da177e4 LT |
62 | |
| 63 | /* | |
| 64 | * Probe for a Falcon IDE interface | |
| 65 | */ | |
| 66 | ||
| ade2daf9 | 67 | static int __init falconide_init(void) |
| 1da177e4 | 68 | { |
| 1da177e4 | 69 | hw_regs_t hw; |
| e79f8126 | 70 | ide_hwif_t *hwif; |
| 1da177e4 | 71 | |
| 29dd5975 BZ |
72 | if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE)) |
| 73 | return 0; | |
| 74 | ||
| c99c92c5 BZ |
75 | printk(KERN_INFO "ide: Falcon IDE controller\n"); |
| 76 | ||
| 29dd5975 | 77 | falconide_setup_ports(&hw); |
| 1da177e4 | 78 | |
| cbb010c1 BZ |
79 | hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]); |
| 80 | if (hwif) { | |
| 81 | u8 index = hwif->index; | |
| 8ac4ce74 | 82 | u8 idx[4] = { index, 0xff, 0xff, 0xff }; |
| cbb010c1 BZ |
83 | |
| 84 | ide_init_port_data(hwif, index); | |
| 85 | ide_init_port_hw(hwif, &hw); | |
| 86 | ||
| d684b21f | 87 | ide_get_lock(NULL, NULL); |
| c413b9b9 | 88 | ide_device_add(idx, NULL); |
| d684b21f | 89 | ide_release_lock(); |
| cbb010c1 | 90 | } |
| ade2daf9 | 91 | |
| 29dd5975 | 92 | return 0; |
| 1da177e4 | 93 | } |
| ade2daf9 BZ |
94 | |
| 95 | module_init(falconide_init); |