linux-imx

/*

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

 *      Amiga Technologies A4000T SCSI controller.

 *

 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>

 * plus modifications of the 53c7xx.c driver to support the Amiga.

 *

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

 */

​

#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/slab.h>

#include <asm/amigahw.h>

#include <asm/amigaints.h>

#include <scsi/scsi_host.h>

#include <scsi/scsi_transport_spi.h>

​

#include "53c700.h"

​

​

static struct scsi_host_template a4000t_scsi_driver_template = {

    .name       = "A4000T builtin SCSI",

    .proc_name  = "A4000t",

    .this_id    = 7,

    .module     = THIS_MODULE,

};

​

​

#define A4000T_SCSI_OFFSET  0x40

​

static int __init amiga_a4000t_scsi_probe(struct platform_device *pdev)

{

    struct resource *res;

    phys_addr_t scsi_addr;

    struct NCR_700_Host_Parameters *hostdata;

    struct Scsi_Host *host;

​

    res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

    if (!res)

        return -ENODEV;

​

    if (!request_mem_region(res->start, resource_size(res),

                "A4000T builtin SCSI"))

        return -EBUSY;

​

    hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters),

               GFP_KERNEL);

    if (!hostdata) {

        dev_err(&pdev->dev, "Failed to allocate host data\n");

        goto out_release;

    }

​

    scsi_addr = res->start + A4000T_SCSI_OFFSET;

​

    /* Fill in the required pieces of hostdata */

    hostdata->base = ZTWO_VADDR(scsi_addr);

    hostdata->clock = 50;

    hostdata->chip710 = 1;

    hostdata->dmode_extra = DMODE_FC2;

    hostdata->dcntl_extra = EA_710;