Commit c27d85f3 authored by Thomas Bogendoerfer's avatar Thomas Bogendoerfer Committed by James Bottomley
Browse files

[SCSI] SNI RM 53c710 driver



This patch adds a SCSI driver for the onboard 53c710 chip of some
SNI RM machines.
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 3b1ca5a1
......@@ -973,6 +973,15 @@ config SCSI_LASI700
many PA-RISC workstations & servers. If you do not know whether you
have a Lasi chip, it is safe to say "Y" here.
config SCSI_SNI_53C710
tristate "SNI RM SCSI support for 53c710"
depends on SNI_RM && SCSI
select SCSI_SPI_ATTRS
select 53C700_LE_ON_BE
help
This is a driver for the onboard SCSI controller found in older
SNI RM workstations & servers.
config 53C700_LE_ON_BE
bool
depends on SCSI_LASI700
......
......@@ -124,6 +124,7 @@ obj-$(CONFIG_JAZZ_ESP) += NCR53C9x.o jazz_esp.o
obj-$(CONFIG_SUN3X_ESP) += NCR53C9x.o sun3x_esp.o
obj-$(CONFIG_SCSI_FCAL) += fcal.o
obj-$(CONFIG_SCSI_LASI700) += 53c700.o lasi700.o
obj-$(CONFIG_SCSI_SNI_53C710) += 53c700.o sni_53c710.o
obj-$(CONFIG_SCSI_NSP32) += nsp32.o
obj-$(CONFIG_SCSI_IPR) += ipr.o
obj-$(CONFIG_SCSI_SRP) += libsrp.o
......
/* -*- mode: c; c-basic-offset: 8 -*- */
/* SNI RM driver
*
* Copyright (C) 2001 by James.Bottomley@HansenPartnership.com
**-----------------------------------------------------------------------------
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**-----------------------------------------------------------------------------
*/
/*
* Based on lasi700.c
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/stat.h>
#include <linux/mm.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
#include <linux/ioport.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/irq.h>
#include <asm/delay.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("Thomas Bogendrfer");
MODULE_DESCRIPTION("SNI RM 53c710 SCSI Driver");
MODULE_LICENSE("GPL");
#define SNIRM710_CLOCK 32
static struct scsi_host_template snirm710_template = {
.name = "SNI RM SCSI 53c710",
.proc_name = "snirm_53c710",
.this_id = 7,
.module = THIS_MODULE,
};
static int __init snirm710_probe(struct platform_device *dev)
{
unsigned long base;
struct NCR_700_Host_Parameters *hostdata;
struct Scsi_Host *host;
struct resource *res;
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!res)
return -ENODEV;
base = res->start;
hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
if (!hostdata) {
printk(KERN_ERR "%s: Failed to allocate host data\n",
dev->dev.bus_id);
return -ENOMEM;
}
hostdata->dev = &dev->dev;
dma_set_mask(&dev->dev, DMA_32BIT_MASK);
hostdata->base = ioremap_nocache(CPHYSADDR(base), 0x100);
hostdata->differential = 0;
hostdata->clock = SNIRM710_CLOCK;
hostdata->force_le_on_be = 1;
hostdata->chip710 = 1;
hostdata->burst_length = 4;
host = NCR_700_detect(&snirm710_template, hostdata, &dev->dev);
if (!host)
goto out_kfree;
host->this_id = 7;
host->base = base;
host->irq = platform_get_irq(dev, 0);
if(request_irq(host->irq, NCR_700_intr, SA_SHIRQ, "snirm710", host)) {
printk(KERN_ERR "snirm710: request_irq failed!\n");
goto out_put_host;
}
dev_set_drvdata(&dev->dev, host);
scsi_scan_host(host);
return 0;
out_put_host:
scsi_host_put(host);
out_kfree:
iounmap(hostdata->base);
kfree(hostdata);
return -ENODEV;
}
static int __exit snirm710_driver_remove(struct platform_device *dev)
{
struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)host->hostdata[0];
scsi_remove_host(host);
NCR_700_release(host);
free_irq(host->irq, host);
iounmap(hostdata->base);
kfree(hostdata);
return 0;
}
static struct platform_driver snirm710_driver = {
.probe = snirm710_probe,
.remove = __devexit_p(snirm710_driver_remove),
.driver = {
.name = "snirm_53c710",
},
};
static int __init snirm710_init(void)
{
int err;
if ((err = platform_driver_register(&snirm710_driver))) {
printk(KERN_ERR "Driver registration failed\n");
return err;
}
return 0;
}
static void __exit snirm710_exit(void)
{
platform_driver_unregister(&snirm710_driver);
}
module_init(snirm710_init);
module_exit(snirm710_exit);
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