Merge tag 'iomap-5.13-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
[linux-2.6-microblaze.git] / drivers / scsi / zorro7xx.c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
4  *              Amiga MacroSystemUS WarpEngine SCSI controller.
5  *              Amiga Technologies/DKB A4091 SCSI controller.
6  *
7  * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
8  * plus modifications of the 53c7xx.c driver to support the Amiga.
9  *
10  * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>
11  */
12
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/interrupt.h>
16 #include <linux/zorro.h>
17 #include <linux/slab.h>
18
19 #include <asm/amigahw.h>
20 #include <asm/amigaints.h>
21
22 #include <scsi/scsi_host.h>
23 #include <scsi/scsi_transport_spi.h>
24
25 #include "53c700.h"
26
27 MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>");
28 MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver");
29 MODULE_LICENSE("GPL");
30
31
32 static struct scsi_host_template zorro7xx_scsi_driver_template = {
33         .proc_name      = "zorro7xx",
34         .this_id        = 7,
35         .module         = THIS_MODULE,
36 };
37
38 static struct zorro_driver_data {
39         const char *name;
40         unsigned long offset;
41         int absolute;   /* offset is absolute address */
42 } zorro7xx_driver_data[] = {
43         { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 },
44         { .name = "WarpEngine 40xx", .offset = 0x40000 },
45         { .name = "A4091", .offset = 0x800000 },
46         { .name = "GForce 040/060", .offset = 0x40000 },
47         { 0 }
48 };
49
50 static struct zorro_device_id zorro7xx_zorro_tbl[] = {
51         {
52                 .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS,
53                 .driver_data = (unsigned long)&zorro7xx_driver_data[0],
54         },
55         {
56                 .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx,
57                 .driver_data = (unsigned long)&zorro7xx_driver_data[1],
58         },
59         {
60                 .id = ZORRO_PROD_CBM_A4091_1,
61                 .driver_data = (unsigned long)&zorro7xx_driver_data[2],
62         },
63         {
64                 .id = ZORRO_PROD_CBM_A4091_2,
65                 .driver_data = (unsigned long)&zorro7xx_driver_data[2],
66         },
67         {
68                 .id = ZORRO_PROD_GVP_GFORCE_040_060,
69                 .driver_data = (unsigned long)&zorro7xx_driver_data[3],
70         },
71         { 0 }
72 };
73 MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl);
74
75 static int zorro7xx_init_one(struct zorro_dev *z,
76                              const struct zorro_device_id *ent)
77 {
78         struct Scsi_Host *host;
79         struct NCR_700_Host_Parameters *hostdata;
80         struct zorro_driver_data *zdd;
81         unsigned long board, ioaddr;
82
83         board = zorro_resource_start(z);
84         zdd = (struct zorro_driver_data *)ent->driver_data;
85
86         if (zdd->absolute) {
87                 ioaddr = zdd->offset;
88         } else {
89                 ioaddr = board + zdd->offset;
90         }
91
92         if (!zorro_request_device(z, zdd->name)) {
93                 printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n",
94                        board);
95                 return -EBUSY;
96         }
97
98         hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
99         if (!hostdata) {
100                 printk(KERN_ERR "zorro7xx: Failed to allocate host data\n");
101                 goto out_release;
102         }
103
104         /* Fill in the required pieces of hostdata */
105         if (ioaddr > 0x01000000)
106                 hostdata->base = ioremap(ioaddr, zorro_resource_len(z));
107         else
108                 hostdata->base = ZTWO_VADDR(ioaddr);
109
110         hostdata->clock = 50;
111         hostdata->chip710 = 1;
112
113         /* Settings for at least WarpEngine 40xx */
114         hostdata->ctest7_extra = CTEST7_TT1;
115
116         zorro7xx_scsi_driver_template.name = zdd->name;
117
118         /* and register the chip */
119         host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,
120                               &z->dev);
121         if (!host) {
122                 printk(KERN_ERR "zorro7xx: No host detected; "
123                                 "board configuration problem?\n");
124                 goto out_free;
125         }
126
127         host->this_id = 7;
128         host->base = ioaddr;
129         host->irq = IRQ_AMIGA_PORTS;
130
131         if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",
132                         host)) {
133                 printk(KERN_ERR "zorro7xx: request_irq failed\n");
134                 goto out_put_host;
135         }
136
137         zorro_set_drvdata(z, host);
138         scsi_scan_host(host);
139
140         return 0;
141
142  out_put_host:
143         scsi_host_put(host);
144  out_free:
145         if (ioaddr > 0x01000000)
146                 iounmap(hostdata->base);
147         kfree(hostdata);
148  out_release:
149         zorro_release_device(z);
150
151         return -ENODEV;
152 }
153
154 static void zorro7xx_remove_one(struct zorro_dev *z)
155 {
156         struct Scsi_Host *host = zorro_get_drvdata(z);
157         struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
158
159         scsi_remove_host(host);
160
161         NCR_700_release(host);
162         kfree(hostdata);
163         free_irq(host->irq, host);
164         zorro_release_device(z);
165 }
166
167 static struct zorro_driver zorro7xx_driver = {
168         .name     = "zorro7xx-scsi",
169         .id_table = zorro7xx_zorro_tbl,
170         .probe    = zorro7xx_init_one,
171         .remove   = zorro7xx_remove_one,
172 };
173
174 static int __init zorro7xx_scsi_init(void)
175 {
176         return zorro_register_driver(&zorro7xx_driver);
177 }
178
179 static void __exit zorro7xx_scsi_exit(void)
180 {
181         zorro_unregister_driver(&zorro7xx_driver);
182 }
183
184 module_init(zorro7xx_scsi_init);
185 module_exit(zorro7xx_scsi_exit);