linux-imx

/*

 * Detection routine for the NCR53c710 based MVME16x SCSI Controllers for Linux.

 *

 * Based on work by Alan Hourihane

 *

 * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org>

 */

​

#include <linux/module.h>

#include <linux/blkdev.h>

#include <linux/device.h>

#include <linux/platform_device.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/slab.h>

#include <asm/mvme16xhw.h>

#include <scsi/scsi_host.h>

#include <scsi/scsi_device.h>

#include <scsi/scsi_transport.h>

#include <scsi/scsi_transport_spi.h>

​

#include "53c700.h"

​

MODULE_AUTHOR("Kars de Jong <jongk@linux-m68k.org>");

MODULE_DESCRIPTION("MVME16x NCR53C710 driver");

MODULE_LICENSE("GPL");

​

static struct scsi_host_template mvme16x_scsi_driver_template = {

    .name           = "MVME16x NCR53c710 SCSI",

    .proc_name      = "MVME16x",

    .this_id        = 7,

    .module         = THIS_MODULE,

};

​

static struct platform_device *mvme16x_scsi_device;

​

static int mvme16x_probe(struct platform_device *dev)

{

    struct Scsi_Host * host = NULL;

    struct NCR_700_Host_Parameters *hostdata;

​

    if (!MACH_IS_MVME16x)

        goto out;

​

    if (mvme16x_config & MVME16x_CONFIG_NO_SCSICHIP) {

        printk(KERN_INFO "mvme16x-scsi: detection disabled, "

                 "SCSI chip not present\n");

        goto out;

    }

​

    hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);

    if (hostdata == NULL) {

        printk(KERN_ERR "mvme16x-scsi: "

                "Failed to allocate host data\n");

        goto out;

    }

​

    /* Fill in the required pieces of hostdata */

    hostdata->base = (void __iomem *)0xfff47000UL;

    hostdata->clock = 50;   /* XXX - depends on the CPU clock! */

    hostdata->chip710 = 1;

    hostdata->dmode_extra = DMODE_FC2;

    hostdata->dcntl_extra = EA_710;