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Commit a16efc1c authored by Kars de Jong's avatar Kars de Jong Committed by James Bottomley
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[SCSI] 53c700: Amiga 4000T NCR53c710 SCSI 



New driver for the Amiga 4000T built-in 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 506c7bbc

drivers/scsi/Kconfig

+12 −2
Original line number Diff line number Diff line
@@ -1008,7 +1008,7 @@ config SCSI_STEX 


config 53C700_BE_BUS

	bool

	depends on MVME16x_SCSI || BVME6000_SCSI

	depends on SCSI_A4000T || MVME16x_SCSI || BVME6000_SCSI

	default y



config SCSI_SYM53C8XX_2
@@ -1614,13 +1614,23 @@ config FASTLANE_SCSI 
	  If you have the Phase5 Fastlane Z3 SCSI controller, or plan to use

	  one in the near future, say Y to this question. Otherwise, say N.



config SCSI_A4000T

	tristate "A4000T NCR53c710 SCSI support (EXPERIMENTAL)"

	depends on AMIGA && SCSI && EXPERIMENTAL

	select SCSI_SPI_ATTRS

	help

	  If you have an Amiga 4000T and have SCSI devices connected to the

	  built-in SCSI controller, say Y. Otherwise, say N.



	  To compile this driver as a module, choose M here: the

	  module will be called a4000t.



config SCSI_AMIGA7XX

	bool "Amiga NCR53c710 SCSI support (EXPERIMENTAL)"

	depends on AMIGA && SCSI && EXPERIMENTAL && BROKEN

	help

	  Support for various NCR53c710-based SCSI controllers on the Amiga.

	  This includes:

	    - the builtin SCSI controller on the Amiga 4000T,

	    - the Amiga 4091 Zorro III SCSI-2 controller,

	    - the MacroSystem Development's WarpEngine Amiga SCSI-2 controller

	      (info at

drivers/scsi/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ obj-$(CONFIG_SCSI_SAS_LIBSAS) += libsas/ 


obj-$(CONFIG_ISCSI_TCP) 	+= libiscsi.o	iscsi_tcp.o

obj-$(CONFIG_INFINIBAND_ISER) 	+= libiscsi.o

obj-$(CONFIG_SCSI_A4000T)	+= 53c700.o	a4000t.o

obj-$(CONFIG_A3000_SCSI)	+= a3000.o	wd33c93.o

obj-$(CONFIG_A2091_SCSI)	+= a2091.o	wd33c93.o

obj-$(CONFIG_GVP11_SCSI)	+= gvp11.o	wd33c93.o

drivers/scsi/a4000t.c

0 → 100644
+142 −0
Original line number Diff line number Diff line 
/*

 * 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 <asm/amigaints.h>

#include <scsi/scsi_host.h>

#include <scsi/scsi_transport_spi.h>



#include "53c700.h"



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");





static struct scsi_host_template a4000t_scsi_driver_template = {

	.name		= "A4000T builtin SCSI",

	.proc_name	= "A4000t",

	.this_id	= 7,

	.module		= THIS_MODULE,

};



static struct platform_device *a4000t_scsi_device;



#define A4000T_SCSI_ADDR 0xdd0040



static int __devinit a4000t_probe(struct device *dev)

{

	struct Scsi_Host * host = NULL;

	struct NCR_700_Host_Parameters *hostdata;



	if (!(MACH_IS_AMIGA && AMIGAHW_PRESENT(A4000_SCSI)))

		goto out;



	if (!request_mem_region(A4000T_SCSI_ADDR, 0x1000,

				"A4000T builtin SCSI"))

		goto out;



	hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);

	if (hostdata == NULL) {

		printk(KERN_ERR "a4000t-scsi: Failed to allocate host data\n");

		goto out_release;

	}

	memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters));



	/* Fill in the required pieces of hostdata */

	hostdata->base = (void __iomem *)ZTWO_VADDR(A4000T_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, dev);

	if (!host) {

		printk(KERN_ERR "a4000t-scsi: No host detected; "

				"board configuration problem?\n");

		goto out_free;

	}



	host->this_id = 7;

	host->base = A4000T_SCSI_ADDR;

	host->irq = IRQ_AMIGA_PORTS;



	if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi",

			host)) {

		printk(KERN_ERR "a4000t-scsi: request_irq failed\n");

		goto out_put_host;

	}



	scsi_scan_host(host);



	return 0;



 out_put_host:

	scsi_host_put(host);

 out_free:

	kfree(hostdata);

 out_release:

	release_mem_region(A4000T_SCSI_ADDR, 0x1000);

 out:

	return -ENODEV;

}



static __devexit int a4000t_device_remove(struct device *dev)

{

	struct Scsi_Host *host = dev_to_shost(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);

	release_mem_region(A4000T_SCSI_ADDR, 0x1000);



	return 0;

}



static struct device_driver a4000t_scsi_driver = {

	.name	= "a4000t-scsi",

	.bus	= &platform_bus_type,

	.probe	= a4000t_probe,

	.remove	= __devexit_p(a4000t_device_remove),

};



static int __init a4000t_scsi_init(void)

{

	int err;



	err = driver_register(&a4000t_scsi_driver);

	if (err)

		return err;



	a4000t_scsi_device = platform_device_register_simple("a4000t-scsi",

			-1, NULL, 0);

	if (IS_ERR(a4000t_scsi_device)) {

		driver_unregister(&a4000t_scsi_driver);

		return PTR_ERR(a4000t_scsi_device);

	}



	return err;

}



static void __exit a4000t_scsi_exit(void)

{

	platform_device_unregister(a4000t_scsi_device);

	driver_unregister(&a4000t_scsi_driver);

}



module_init(a4000t_scsi_init);

module_exit(a4000t_scsi_exit);