[SCSI] SNI RM 53c710 driver
This patch adds a SCSI driver for the onboard 53c710 chip of some
SNI RM machines.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 60f5827..0133f3a 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -973,6 +973,15 @@
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
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index bd7c988..79ecf4e 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -124,6 +124,7 @@
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
diff --git a/drivers/scsi/sni_53c710.c b/drivers/scsi/sni_53c710.c
new file mode 100644
index 0000000..6bc5051
--- /dev/null
+++ b/drivers/scsi/sni_53c710.c
@@ -0,0 +1,159 @@
+/* -*- 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 Bogendörfer");
+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);