Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
[firefly-linux-kernel-4.4.55.git] / drivers / scsi / zorro7xx.c
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 <linux/slab.h>
17
18 #include <asm/amigahw.h>
19 #include <asm/amigaints.h>
20
21 #include <scsi/scsi_host.h>
22 #include <scsi/scsi_transport_spi.h>
23
24 #include "53c700.h"
25
26 MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
27 MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver");
28 MODULE_LICENSE("GPL");
29
30
31 static struct scsi_host_template zorro7xx_scsi_driver_template = {
32         .proc_name      = "zorro7xx",
33         .this_id        = 7,
34         .module         = THIS_MODULE,
35 };
36
37 static struct zorro_driver_data {
38         const char *name;
39         unsigned long offset;
40         int absolute;   /* offset is absolute address */
41 } zorro7xx_driver_data[] __devinitdata = {
42         { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 },
43         { .name = "WarpEngine 40xx", .offset = 0x40000 },
44         { .name = "A4091", .offset = 0x800000 },
45         { .name = "GForce 040/060", .offset = 0x40000 },
46         { 0 }
47 };
48
49 static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = {
50         {
51                 .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS,
52                 .driver_data = (unsigned long)&zorro7xx_driver_data[0],
53         },
54         {
55                 .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx,
56                 .driver_data = (unsigned long)&zorro7xx_driver_data[1],
57         },
58         {
59                 .id = ZORRO_PROD_CBM_A4091_1,
60                 .driver_data = (unsigned long)&zorro7xx_driver_data[2],
61         },
62         {
63                 .id = ZORRO_PROD_CBM_A4091_2,
64                 .driver_data = (unsigned long)&zorro7xx_driver_data[2],
65         },
66         {
67                 .id = ZORRO_PROD_GVP_GFORCE_040_060,
68                 .driver_data = (unsigned long)&zorro7xx_driver_data[3],
69         },
70         { 0 }
71 };
72 MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl);
73
74 static int __devinit zorro7xx_init_one(struct zorro_dev *z,
75                                        const struct zorro_device_id *ent)
76 {
77         struct Scsi_Host *host;
78         struct NCR_700_Host_Parameters *hostdata;
79         struct zorro_driver_data *zdd;
80         unsigned long board, ioaddr;
81
82         board = zorro_resource_start(z);
83         zdd = (struct zorro_driver_data *)ent->driver_data;
84
85         if (zdd->absolute) {
86                 ioaddr = zdd->offset;
87         } else {
88                 ioaddr = board + zdd->offset;
89         }
90
91         if (!zorro_request_device(z, zdd->name)) {
92                 printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n",
93                        board);
94                 return -EBUSY;
95         }
96
97         hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
98         if (!hostdata) {
99                 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n");
100                 goto out_release;
101         }
102
103         /* Fill in the required pieces of hostdata */
104         if (ioaddr > 0x01000000)
105                 hostdata->base = ioremap(ioaddr, zorro_resource_len(z));
106         else
107                 hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr);
108
109         hostdata->clock = 50;
110         hostdata->chip710 = 1;
111
112         /* Settings for at least WarpEngine 40xx */
113         hostdata->ctest7_extra = CTEST7_TT1;
114
115         zorro7xx_scsi_driver_template.name = zdd->name;
116
117         /* and register the chip */
118         host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,
119                               &z->dev);
120         if (!host) {
121                 printk(KERN_ERR "zorro7xx: No host detected; "
122                                 "board configuration problem?\n");
123                 goto out_free;
124         }
125
126         host->this_id = 7;
127         host->base = ioaddr;
128         host->irq = IRQ_AMIGA_PORTS;
129
130         if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",
131                         host)) {
132                 printk(KERN_ERR "zorro7xx: request_irq failed\n");
133                 goto out_put_host;
134         }
135
136         zorro_set_drvdata(z, host);
137         scsi_scan_host(host);
138
139         return 0;
140
141  out_put_host:
142         scsi_host_put(host);
143  out_free:
144         if (ioaddr > 0x01000000)
145                 iounmap(hostdata->base);
146         kfree(hostdata);
147  out_release:
148         zorro_release_device(z);
149
150         return -ENODEV;
151 }
152
153 static __devexit void zorro7xx_remove_one(struct zorro_dev *z)
154 {
155         struct Scsi_Host *host = zorro_get_drvdata(z);
156         struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
157
158         scsi_remove_host(host);
159
160         NCR_700_release(host);
161         kfree(hostdata);
162         free_irq(host->irq, host);
163         zorro_release_device(z);
164 }
165
166 static struct zorro_driver zorro7xx_driver = {
167         .name     = "zorro7xx-scsi",
168         .id_table = zorro7xx_zorro_tbl,
169         .probe    = zorro7xx_init_one,
170         .remove   = __devexit_p(zorro7xx_remove_one),
171 };
172
173 static int __init zorro7xx_scsi_init(void)
174 {
175         return zorro_register_driver(&zorro7xx_driver);
176 }
177
178 static void __exit zorro7xx_scsi_exit(void)
179 {
180         zorro_unregister_driver(&zorro7xx_driver);
181 }
182
183 module_init(zorro7xx_scsi_init);
184 module_exit(zorro7xx_scsi_exit);