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authorKars de Jong <jongk@linux-m68k.org>2007-06-17 08:47:09 -0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-06-17 17:19:14 -0400
commit45804fbb00eea27bdf4d62751681228a9e2844e9 (patch)
tree9725a96532275ea523de463f6955f36257cfa830 /drivers/scsi/zorro7xx.c
parenta16efc1cbf0a9e5ea9f99ae98fb774b60d05c35b (diff)
[SCSI] 53c700: Amiga Zorro NCR53c710 SCSI
New driver for Amiga Zorro bus NCR53c710 SCSI controllers, using the 53c700 SCSI core. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/zorro7xx.c')
-rw-r--r--drivers/scsi/zorro7xx.c181
1 files changed, 181 insertions, 0 deletions
diff --git a/drivers/scsi/zorro7xx.c b/drivers/scsi/zorro7xx.c
new file mode 100644
index 000000000000..93fa8b8d8a8b
--- /dev/null
+++ b/drivers/scsi/zorro7xx.c
@@ -0,0 +1,181 @@
1/*
2 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
3 * Amiga MacroSystemUS WarpEngine SCSI controller.
4 * Amiga Technologies/DKB A4091 SCSI controller.
5 *
6 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
7 * plus modifications of the 53c7xx.c driver to support the Amiga.
8 *
9 * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>
10 */
11
12#include <linux/module.h>
13#include <linux/init.h>
14#include <linux/interrupt.h>
15#include <linux/zorro.h>
16#include <asm/amigaints.h>
17#include <scsi/scsi_host.h>
18#include <scsi/scsi_transport_spi.h>
19
20#include "53c700.h"
21
22MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
23MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver");
24MODULE_LICENSE("GPL");
25
26
27static struct scsi_host_template zorro7xx_scsi_driver_template = {
28 .proc_name = "zorro7xx",
29 .this_id = 7,
30 .module = THIS_MODULE,
31};
32
33static struct zorro_driver_data {
34 const char *name;
35 unsigned long offset;
36 int absolute; /* offset is absolute address */
37} zorro7xx_driver_data[] __devinitdata = {
38 { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 },
39 { .name = "WarpEngine 40xx", .offset = 0x40000 },
40 { .name = "A4091", .offset = 0x800000 },
41 { .name = "GForce 040/060", .offset = 0x40000 },
42 { 0 }
43};
44
45static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = {
46 {
47 .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS,
48 .driver_data = (unsigned long)&zorro7xx_driver_data[0],
49 },
50 {
51 .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx,
52 .driver_data = (unsigned long)&zorro7xx_driver_data[1],
53 },
54 {
55 .id = ZORRO_PROD_CBM_A4091_1,
56 .driver_data = (unsigned long)&zorro7xx_driver_data[2],
57 },
58 {
59 .id = ZORRO_PROD_CBM_A4091_2,
60 .driver_data = (unsigned long)&zorro7xx_driver_data[2],
61 },
62 {
63 .id = ZORRO_PROD_GVP_GFORCE_040_060,
64 .driver_data = (unsigned long)&zorro7xx_driver_data[3],
65 },
66 { 0 }
67};
68MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl);
69
70static int __devinit zorro7xx_init_one(struct zorro_dev *z,
71 const struct zorro_device_id *ent)
72{
73 struct Scsi_Host * host = NULL;
74 struct NCR_700_Host_Parameters *hostdata;
75 struct zorro_driver_data *zdd;
76 unsigned long board, ioaddr;
77
78 board = zorro_resource_start(z);
79 zdd = (struct zorro_driver_data *)ent->driver_data;
80
81 if (zdd->absolute) {
82 ioaddr = zdd->offset;
83 } else {
84 ioaddr = board + zdd->offset;
85 }
86
87 if (!zorro_request_device(z, zdd->name)) {
88 printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n",
89 board);
90 return -EBUSY;
91 }
92
93 hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
94 if (hostdata == NULL) {
95 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n");
96 goto out_release;
97 }
98
99 memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters));
100
101 /* Fill in the required pieces of hostdata */
102 if (ioaddr > 0x01000000)
103 hostdata->base = ioremap(ioaddr, zorro_resource_len(z));
104 else
105 hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr);
106
107 hostdata->clock = 50;
108 hostdata->chip710 = 1;
109
110 /* Settings for at least WarpEngine 40xx */
111 hostdata->ctest7_extra = CTEST7_TT1;
112
113 zorro7xx_scsi_driver_template.name = zdd->name;
114
115 /* and register the chip */
116 host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,
117 &z->dev);
118 if (!host) {
119 printk(KERN_ERR "zorro7xx: No host detected; "
120 "board configuration problem?\n");
121 goto out_free;
122 }
123
124 host->this_id = 7;
125 host->base = ioaddr;
126 host->irq = IRQ_AMIGA_PORTS;
127
128 if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",
129 host)) {
130 printk(KERN_ERR "zorro7xx: request_irq failed\n");
131 goto out_put_host;
132 }
133
134 scsi_scan_host(host);
135
136 return 0;
137
138 out_put_host:
139 scsi_host_put(host);
140 out_free:
141 if (ioaddr > 0x01000000)
142 iounmap(hostdata->base);
143 kfree(hostdata);
144 out_release:
145 zorro_release_device(z);
146
147 return -ENODEV;
148}
149
150static __devexit void zorro7xx_remove_one(struct zorro_dev *z)
151{
152 struct Scsi_Host *host = dev_to_shost(&z->dev);
153 struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
154
155 scsi_remove_host(host);
156
157 NCR_700_release(host);
158 kfree(hostdata);
159 free_irq(host->irq, host);
160 zorro_release_device(z);
161}
162
163static struct zorro_driver zorro7xx_driver = {
164 .name = "zorro7xx-scsi",
165 .id_table = zorro7xx_zorro_tbl,
166 .probe = zorro7xx_init_one,
167 .remove = __devexit_p(zorro7xx_remove_one),
168};
169
170static int __init zorro7xx_scsi_init(void)
171{
172 return zorro_register_driver(&zorro7xx_driver);
173}
174
175static void __exit zorro7xx_scsi_exit(void)
176{
177 zorro_unregister_driver(&zorro7xx_driver);
178}
179
180module_init(zorro7xx_scsi_init);
181module_exit(zorro7xx_scsi_exit);