forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
139 lines
3.3 KiB
139 lines
3.3 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux. |
|
* |
|
* Based on work by Alan Hourihane and Kars de Jong |
|
* |
|
* Rewritten to use 53c700.c by Richard Hirst <[email protected]> |
|
*/ |
|
|
|
#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/bvme6000hw.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("Richard Hirst <[email protected]>"); |
|
MODULE_DESCRIPTION("BVME6000 NCR53C710 driver"); |
|
MODULE_LICENSE("GPL"); |
|
|
|
static struct scsi_host_template bvme6000_scsi_driver_template = { |
|
.name = "BVME6000 NCR53c710 SCSI", |
|
.proc_name = "BVME6000", |
|
.this_id = 7, |
|
.module = THIS_MODULE, |
|
}; |
|
|
|
static struct platform_device *bvme6000_scsi_device; |
|
|
|
static int |
|
bvme6000_probe(struct platform_device *dev) |
|
{ |
|
struct Scsi_Host *host; |
|
struct NCR_700_Host_Parameters *hostdata; |
|
|
|
if (!MACH_IS_BVME6000) |
|
goto out; |
|
|
|
hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); |
|
if (!hostdata) { |
|
printk(KERN_ERR "bvme6000-scsi: " |
|
"Failed to allocate host data\n"); |
|
goto out; |
|
} |
|
|
|
/* Fill in the required pieces of hostdata */ |
|
hostdata->base = (void __iomem *)BVME_NCR53C710_BASE; |
|
hostdata->clock = 40; /* XXX - depends on the CPU clock! */ |
|
hostdata->chip710 = 1; |
|
hostdata->dmode_extra = DMODE_FC2; |
|
hostdata->dcntl_extra = EA_710; |
|
hostdata->ctest7_extra = CTEST7_TT1; |
|
|
|
/* and register the chip */ |
|
host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata, |
|
&dev->dev); |
|
if (!host) { |
|
printk(KERN_ERR "bvme6000-scsi: No host detected; " |
|
"board configuration problem?\n"); |
|
goto out_free; |
|
} |
|
host->base = BVME_NCR53C710_BASE; |
|
host->this_id = 7; |
|
host->irq = BVME_IRQ_SCSI; |
|
if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", |
|
host)) { |
|
printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); |
|
goto out_put_host; |
|
} |
|
|
|
platform_set_drvdata(dev, host); |
|
scsi_scan_host(host); |
|
|
|
return 0; |
|
|
|
out_put_host: |
|
scsi_host_put(host); |
|
out_free: |
|
kfree(hostdata); |
|
out: |
|
return -ENODEV; |
|
} |
|
|
|
static int |
|
bvme6000_device_remove(struct platform_device *dev) |
|
{ |
|
struct Scsi_Host *host = platform_get_drvdata(dev); |
|
struct NCR_700_Host_Parameters *hostdata = shost_priv(host); |
|
|
|
scsi_remove_host(host); |
|
NCR_700_release(host); |
|
kfree(hostdata); |
|
free_irq(host->irq, host); |
|
|
|
return 0; |
|
} |
|
|
|
static struct platform_driver bvme6000_scsi_driver = { |
|
.driver = { |
|
.name = "bvme6000-scsi", |
|
}, |
|
.probe = bvme6000_probe, |
|
.remove = bvme6000_device_remove, |
|
}; |
|
|
|
static int __init bvme6000_scsi_init(void) |
|
{ |
|
int err; |
|
|
|
err = platform_driver_register(&bvme6000_scsi_driver); |
|
if (err) |
|
return err; |
|
|
|
bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", |
|
-1, NULL, 0); |
|
if (IS_ERR(bvme6000_scsi_device)) { |
|
platform_driver_unregister(&bvme6000_scsi_driver); |
|
return PTR_ERR(bvme6000_scsi_device); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void __exit bvme6000_scsi_exit(void) |
|
{ |
|
platform_device_unregister(bvme6000_scsi_device); |
|
platform_driver_unregister(&bvme6000_scsi_driver); |
|
} |
|
|
|
module_init(bvme6000_scsi_init); |
|
module_exit(bvme6000_scsi_exit);
|
|
|