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
23int 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
51static 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
63static 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"
79