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Diffstat (limited to 'drivers/ide/arm/bast-ide.c')
-rw-r--r--drivers/ide/arm/bast-ide.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/ide/arm/bast-ide.c b/drivers/ide/arm/bast-ide.c
new file mode 100644
index 000000000000..8e8c28104b45
--- /dev/null
+++ b/drivers/ide/arm/bast-ide.c
@@ -0,0 +1,90 @@
1/*
2 * Copyright (c) 2003-2004 Simtec Electronics
3 * Ben Dooks <ben@simtec.co.uk>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9*/
10
11#include <linux/module.h>
12#include <linux/errno.h>
13#include <linux/ide.h>
14#include <linux/init.h>
15
16#include <asm/mach-types.h>
17
18#include <asm/io.h>
19#include <asm/irq.h>
20#include <asm/arch/map.h>
21#include <asm/arch/bast-map.h>
22#include <asm/arch/bast-irq.h>
23
24#define DRV_NAME "bast-ide"
25
26static int __init bastide_register(unsigned int base, unsigned int aux, int irq)
27{
28 ide_hwif_t *hwif;
29 hw_regs_t hw;
30 int i;
31 u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
32
33 memset(&hw, 0, sizeof(hw));
34
35 base += BAST_IDE_CS;
36 aux += BAST_IDE_CS;
37
38 for (i = 0; i <= 7; i++) {
39 hw.io_ports_array[i] = (unsigned long)base;
40 base += 0x20;
41 }
42
43 hw.io_ports.ctl_addr = aux + (6 * 0x20);
44 hw.irq = irq;
45 hw.chipset = ide_generic;
46
47 hwif = ide_find_port();
48 if (hwif == NULL)
49 goto out;
50
51 i = hwif->index;
52
53 ide_init_port_data(hwif, i);
54 ide_init_port_hw(hwif, &hw);
55 hwif->port_ops = NULL;
56
57 idx[0] = i;
58
59 ide_device_add(idx, NULL);
60out:
61 return 0;
62}
63
64static int __init bastide_init(void)
65{
66 unsigned long base = BAST_VA_IDEPRI + BAST_IDE_CS;
67
68 /* we can treat the VR1000 and the BAST the same */
69
70 if (!(machine_is_bast() || machine_is_vr1000()))
71 return 0;
72
73 printk("BAST: IDE driver, (c) 2003-2004 Simtec Electronics\n");
74
75 if (!request_mem_region(base, 0x400000, DRV_NAME)) {
76 printk(KERN_ERR "%s: resources busy\n", DRV_NAME);
77 return -EBUSY;
78 }
79
80 bastide_register(BAST_VA_IDEPRI, BAST_VA_IDEPRIAUX, IRQ_IDE0);
81 bastide_register(BAST_VA_IDESEC, BAST_VA_IDESECAUX, IRQ_IDE1);
82
83 return 0;
84}
85
86module_init(bastide_init);
87
88MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
89MODULE_LICENSE("GPL");
90MODULE_DESCRIPTION("Simtec BAST / Thorcom VR1000 IDE driver");