Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6] / drivers / scsi / mvme16x.c
1 /*
2  * Detection routine for the NCR53c710 based MVME16x SCSI Controllers for Linux.
3  *
4  * Based on work by Alan Hourihane
5  */
6 #include <linux/types.h>
7 #include <linux/mm.h>
8 #include <linux/blkdev.h>
9
10 #include <asm/page.h>
11 #include <asm/pgtable.h>
12 #include <asm/mvme16xhw.h>
13 #include <asm/irq.h>
14
15 #include "scsi.h"
16 #include <scsi/scsi_host.h>
17 #include "53c7xx.h"
18 #include "mvme16x.h"
19
20 #include<linux/stat.h>
21
22
23 int mvme16x_scsi_detect(struct scsi_host_template *tpnt)
24 {
25     static unsigned char called = 0;
26     int clock;
27     long long options;
28
29     if (!MACH_IS_MVME16x)
30                 return 0;
31     if (mvme16x_config & MVME16x_CONFIG_NO_SCSICHIP) {
32         printk ("SCSI detection disabled, SCSI chip not present\n");
33         return 0;
34     }
35     if (called)
36         return 0;
37
38     tpnt->proc_name = "MVME16x";
39
40     options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT;
41
42     clock = 66000000;   /* 66MHz SCSI Clock */
43
44     ncr53c7xx_init(tpnt, 0, 710, (unsigned long)0xfff47000,
45                         0, MVME16x_IRQ_SCSI, DMA_NONE,
46                         options, clock);
47     called = 1;
48     return 1;
49 }
50
51 static int mvme16x_scsi_release(struct Scsi_Host *shost)
52 {
53         if (shost->irq)
54                 free_irq(shost->irq, NULL);
55         if (shost->dma_channel != 0xff)
56                 free_dma(shost->dma_channel);
57         if (shost->io_port && shost->n_io_port)
58                 release_region(shost->io_port, shost->n_io_port);
59         scsi_unregister(shost);
60         return 0;
61 }
62
63 static struct scsi_host_template driver_template = {
64         .name                   = "MVME16x NCR53c710 SCSI",
65         .detect                 = mvme16x_scsi_detect,
66         .release                = mvme16x_scsi_release,
67         .queuecommand           = NCR53c7xx_queue_command,
68         .abort                  = NCR53c7xx_abort,
69         .reset                  = NCR53c7xx_reset,
70         .can_queue              = 24,
71         .this_id                = 7,
72         .sg_tablesize           = 63,
73         .cmd_per_lun            = 3,
74         .use_clustering         = DISABLE_CLUSTERING
75 };
76
77
78 #include "scsi_module.c"