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

drivers/scsi/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -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

drivers/scsi/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/scsi/sni_53c710.c

0 → 100644
+159 −0
Original line number Diff line number Diff line 
/* -*- 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);