a24a6b2225
Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/*
|
|
* 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 = (void __iomem *)ZTWO_VADDR(scsi_addr);
|
|
hostdata->clock = 50;
|
|
hostdata->chip710 = 1;
|
|
hostdata->dmode_extra = DMODE_FC2;
|
|
hostdata->dcntl_extra = EA_710;
|
|
|
|
/* and register the chip */
|
|
host = NCR_700_detect(&a4000t_scsi_driver_template, hostdata,
|
|
&pdev->dev);
|
|
if (!host) {
|
|
dev_err(&pdev->dev,
|
|
"No host detected; board configuration problem?\n");
|
|
goto out_free;
|
|
}
|
|
|
|
host->this_id = 7;
|
|
host->base = scsi_addr;
|
|
host->irq = IRQ_AMIGA_PORTS;
|
|
|
|
if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi",
|
|
host)) {
|
|
dev_err(&pdev->dev, "request_irq failed\n");
|
|
goto out_put_host;
|
|
}
|
|
|
|
platform_set_drvdata(pdev, host);
|
|
scsi_scan_host(host);
|
|
return 0;
|
|
|
|
out_put_host:
|
|
scsi_host_put(host);
|
|
out_free:
|
|
kfree(hostdata);
|
|
out_release:
|
|
release_mem_region(res->start, resource_size(res));
|
|
return -ENODEV;
|
|
}
|
|
|
|
static int __exit amiga_a4000t_scsi_remove(struct platform_device *pdev)
|
|
{
|
|
struct Scsi_Host *host = platform_get_drvdata(pdev);
|
|
struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
|
|
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
|
|
scsi_remove_host(host);
|
|
NCR_700_release(host);
|
|
kfree(hostdata);
|
|
free_irq(host->irq, host);
|
|
release_mem_region(res->start, resource_size(res));
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver amiga_a4000t_scsi_driver = {
|
|
.remove = __exit_p(amiga_a4000t_scsi_remove),
|
|
.driver = {
|
|
.name = "amiga-a4000t-scsi",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
static int __init amiga_a4000t_scsi_init(void)
|
|
{
|
|
return platform_driver_probe(&amiga_a4000t_scsi_driver,
|
|
amiga_a4000t_scsi_probe);
|
|
}
|
|
|
|
module_init(amiga_a4000t_scsi_init);
|
|
|
|
static void __exit amiga_a4000t_scsi_exit(void)
|
|
{
|
|
platform_driver_unregister(&amiga_a4000t_scsi_driver);
|
|
}
|
|
|
|
module_exit(amiga_a4000t_scsi_exit);
|
|
|
|
MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / "
|
|
"Kars de Jong <jongk@linux-m68k.org>");
|
|
MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:amiga-a4000t-scsi");
|