Commit 506c7bbc authored by Kars de Jong's avatar Kars de Jong Committed by James Bottomley

[SCSI] 53c700: m68k MVME16x NCR53C710 SCSI

New driver for the MVME16x NCR53C710 SCSI controller, using the 53c700 SCSI
core.
Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 8276b58a
......@@ -1008,7 +1008,7 @@ config SCSI_STEX
config 53C700_BE_BUS
bool
depends on BVME6000_SCSI
depends on MVME16x_SCSI || BVME6000_SCSI
default y
config SCSI_SYM53C8XX_2
......@@ -1715,8 +1715,8 @@ config MVME147_SCSI
single-board computer.
config MVME16x_SCSI
bool "NCR53C710 SCSI driver for MVME16x"
depends on MVME16x && SCSI && BROKEN
tristate "NCR53C710 SCSI driver for MVME16x"
depends on MVME16x && SCSI
select SCSI_SPI_ATTRS
help
The Motorola MVME162, 166, 167, 172 and 177 boards use the NCR53C710
......
......@@ -52,6 +52,7 @@ obj-$(CONFIG_ATARI_SCSI) += atari_scsi.o
obj-$(CONFIG_MAC_SCSI) += mac_scsi.o
obj-$(CONFIG_SCSI_MAC_ESP) += mac_esp.o NCR53C9x.o
obj-$(CONFIG_SUN3_SCSI) += sun3_scsi.o sun3_scsi_vme.o
obj-$(CONFIG_MVME16x_SCSI) += 53c700.o mvme16x_scsi.o
obj-$(CONFIG_BVME6000_SCSI) += 53c700.o bvme6000_scsi.o
obj-$(CONFIG_SCSI_SIM710) += 53c700.o sim710.o
obj-$(CONFIG_SCSI_ADVANSYS) += advansys.o
......
/*
* 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 <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 __devinit int
mvme16x_probe(struct 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 = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
if (hostdata == NULL) {
printk(KERN_ERR "mvme16x-scsi: "
"Failed to allocate host data\n");
goto out;
}
memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters));
/* 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;
hostdata->ctest7_extra = CTEST7_TT1;
/* and register the chip */
host = NCR_700_detect(&mvme16x_scsi_driver_template, hostdata, dev);
if (!host) {
printk(KERN_ERR "mvme16x-scsi: No host detected; "
"board configuration problem?\n");
goto out_free;
}
host->this_id = 7;
host->base = 0xfff47000UL;
host->irq = MVME16x_IRQ_SCSI;
if (request_irq(host->irq, NCR_700_intr, 0, "mvme16x-scsi", host)) {
printk(KERN_ERR "mvme16x-scsi: request_irq failed\n");
goto out_put_host;
}
/* Enable scsi chip ints */
{
volatile unsigned long v;
/* Enable scsi interrupts at level 4 in PCCchip2 */
v = in_be32(0xfff4202c);
v = (v & ~0xff) | 0x10 | 4;
out_be32(0xfff4202c, v);
}
scsi_scan_host(host);
return 0;
out_put_host:
scsi_host_put(host);
out_free:
kfree(hostdata);
out:
return -ENODEV;
}
static __devexit int
mvme16x_device_remove(struct device *dev)
{
struct Scsi_Host *host = dev_to_shost(dev);
struct NCR_700_Host_Parameters *hostdata = shost_priv(host);
/* Disable scsi chip ints */
{
volatile unsigned long v;
v = in_be32(0xfff4202c);
v &= ~0x10;
out_be32(0xfff4202c, v);
}
scsi_remove_host(host);
NCR_700_release(host);
kfree(hostdata);
free_irq(host->irq, host);
return 0;
}
static struct device_driver mvme16x_scsi_driver = {
.name = "mvme16x-scsi",
.bus = &platform_bus_type,
.probe = mvme16x_probe,
.remove = __devexit_p(mvme16x_device_remove),
};
static int __init mvme16x_scsi_init(void)
{
int err;
err = driver_register(&mvme16x_scsi_driver);
if (err)
return err;
mvme16x_scsi_device = platform_device_register_simple("mvme16x-scsi",
-1, NULL, 0);
if (IS_ERR(mvme16x_scsi_device)) {
driver_unregister(&mvme16x_scsi_driver);
return PTR_ERR(mvme16x_scsi_device);
}
return 0;
}
static void __exit mvme16x_scsi_exit(void)
{
platform_device_unregister(mvme16x_scsi_device);
driver_unregister(&mvme16x_scsi_driver);
}
module_init(mvme16x_scsi_init);
module_exit(mvme16x_scsi_exit);
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