1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/*
* Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
* Amiga MacroSystemUS WarpEngine SCSI controller.
* Amiga Technologies A4000T SCSI controller.
* Amiga Technologies/DKB A4091 SCSI controller.
*
* Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
* plus modifications of the 53c7xx.c driver to support the Amiga.
*/
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/zorro.h>
#include <linux/stat.h>
#include <asm/setup.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/amigaints.h>
#include <asm/amigahw.h>
#include <asm/dma.h>
#include <asm/irq.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include "53c7xx.h"
#include "amiga7xx.h"
static int amiga7xx_register_one(struct scsi_host_template *tpnt,
unsigned long address)
{
long long options;
int clock;
if (!request_mem_region(address, 0x1000, "ncr53c710"))
return 0;
address = (unsigned long)z_ioremap(address, 0x1000);
options = OPTION_MEMORY_MAPPED | OPTION_DEBUG_TEST1 | OPTION_INTFLY |
OPTION_SYNCHRONOUS | OPTION_ALWAYS_SYNCHRONOUS |
OPTION_DISCONNECT;
clock = 50000000; /* 50 MHz SCSI Clock */
ncr53c7xx_init(tpnt, 0, 710, address, 0, IRQ_AMIGA_PORTS, DMA_NONE,
options, clock);
return 1;
}
#ifdef CONFIG_ZORRO
static struct {
zorro_id id;
unsigned long offset;
int absolute; /* offset is absolute address */
} amiga7xx_table[] = {
{ .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, .offset = 0xf40000,
.absolute = 1 },
{ .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, .offset = 0x40000 },
{ .id = ZORRO_PROD_CBM_A4091_1, .offset = 0x800000 },
{ .id = ZORRO_PROD_CBM_A4091_2, .offset = 0x800000 },
{ .id = ZORRO_PROD_GVP_GFORCE_040_060, .offset = 0x40000 },
{ 0 }
};
static int __init amiga7xx_zorro_detect(struct scsi_host_template *tpnt)
{
int num = 0, i;
struct zorro_dev *z = NULL;
unsigned long address;
while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
for (i = 0; amiga7xx_table[i].id; i++)
if (z->id == amiga7xx_table[i].id)
break;
if (!amiga7xx_table[i].id)
continue;
if (amiga7xx_table[i].absolute)
address = amiga7xx_table[i].offset;
else
address = z->resource.start + amiga7xx_table[i].offset;
num += amiga7xx_register_one(tpnt, address);
}
return num;
}
#endif /* CONFIG_ZORRO */
int __init amiga7xx_detect(struct scsi_host_template *tpnt)
{
static unsigned char called = 0;
int num = 0;
if (called || !MACH_IS_AMIGA)
return 0;
tpnt->proc_name = "Amiga7xx";
if (AMIGAHW_PRESENT(A4000_SCSI))
num += amiga7xx_register_one(tpnt, 0xdd0040);
#ifdef CONFIG_ZORRO
num += amiga7xx_zorro_detect(tpnt);
#endif
called = 1;
return num;
}
static int amiga7xx_release(struct Scsi_Host *shost)
{
if (shost->irq)
free_irq(shost->irq, NULL);
if (shost->dma_channel != 0xff)
free_dma(shost->dma_channel);
if (shost->io_port && shost->n_io_port)
release_region(shost->io_port, shost->n_io_port);
scsi_unregister(shost);
return 0;
}
static struct scsi_host_template driver_template = {
.name = "Amiga NCR53c710 SCSI",
.detect = amiga7xx_detect,
.release = amiga7xx_release,
.queuecommand = NCR53c7xx_queue_command,
.abort = NCR53c7xx_abort,
.reset = NCR53c7xx_reset,
.can_queue = 24,
.this_id = 7,
.sg_tablesize = 63,
.cmd_per_lun = 3,
.use_clustering = DISABLE_CLUSTERING
};
#include "scsi_module.c"
|
