[SCSI] 53c700: Amiga Zorro NCR53c710 SCSI

New driver for Amiga Zorro bus NCR53c710 SCSI controllers, using the 53c700
SCSI core.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

3 files changed, 189 insertions, 9 deletions

diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 8e53586a3f12..874cfee29358 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1008,7 +1008,7 @@ config SCSI_STEX
 
 config 53C700_BE_BUS
         bool
-        depends on SCSI_A4000T || MVME16x_SCSI || BVME6000_SCSI
+        depends on SCSI_A4000T || SCSI_ZORRO7XX || MVME16x_SCSI || BVME6000_SCSI
         default y
 
 config SCSI_SYM53C8XX_2
@@ -1625,11 +1625,13 @@ config SCSI_A4000T
           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
+config SCSI_ZORRO7XX
+        tristate "Zorro NCR53c710 SCSI support (EXPERIMENTAL)"
+        depends on ZORRO && SCSI && EXPERIMENTAL
+        select SCSI_SPI_ATTRS
         help
-          Support for various NCR53c710-based SCSI controllers on the Amiga.
+          Support for various NCR53c710-based SCSI controllers on Zorro
+          expansion boards for the Amiga.
           This includes:
             - the Amiga 4091 Zorro III SCSI-2 controller,
             - the MacroSystem Development's WarpEngine Amiga SCSI-2 controller
@@ -1638,10 +1640,6 @@ config SCSI_AMIGA7XX
             - the SCSI controller on the Phase5 Blizzard PowerUP 603e+
               accelerator card for the Amiga 1200,
             - the SCSI controller on the GVP Turbo 040/060 accelerator.
-          Note that all of the above SCSI controllers, except for the builtin
-          SCSI controller on the Amiga 4000T, reside on the Zorro expansion
-          bus, so you also have to enable Zorro bus support if you want to use
-          them.
 
 config OKTAGON_SCSI
         tristate "BSC Oktagon SCSI support (EXPERIMENTAL)"
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 1fd7fbc56ba3..3027b5330d7e 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -38,6 +38,7 @@ 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-$(CONFIG_SCSI_ZORRO7XX)     += 53c700.o     zorro7xx.o
 obj-$(CONFIG_A3000_SCSI)        += a3000.o      wd33c93.o
 obj-$(CONFIG_A2091_SCSI)        += a2091.o      wd33c93.o
 obj-$(CONFIG_GVP11_SCSI)        += gvp11.o      wd33c93.o
diff --git a/drivers/scsi/zorro7xx.c b/drivers/scsi/zorro7xx.c
new file mode 100644
index 000000000000..93fa8b8d8a8b
--- /dev/null
+++ b/drivers/scsi/zorro7xx.c
@@ -0,0 +1,181 @@
+/*
+ * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
+ *              Amiga MacroSystemUS WarpEngine SCSI controller.
+ *              Amiga Technologies/DKB A4091 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/init.h>
+#include <linux/interrupt.h>
+#include <linux/zorro.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 Zorro NCR53C710 driver");
+MODULE_LICENSE("GPL");
+
+
+static struct scsi_host_template zorro7xx_scsi_driver_template = {
+        .proc_name      = "zorro7xx",
+        .this_id        = 7,
+        .module         = THIS_MODULE,
+};
+
+static struct zorro_driver_data {
+        const char *name;
+        unsigned long offset;
+        int absolute;   /* offset is absolute address */
+} zorro7xx_driver_data[] __devinitdata = {
+        { .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 },
+        { .name = "WarpEngine 40xx", .offset = 0x40000 },
+        { .name = "A4091", .offset = 0x800000 },
+        { .name = "GForce 040/060", .offset = 0x40000 },
+        { 0 }
+};
+
+static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = {
+        {
+                .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS,
+                .driver_data = (unsigned long)&zorro7xx_driver_data[0],
+        },
+        {
+                .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx,
+                .driver_data = (unsigned long)&zorro7xx_driver_data[1],
+        },
+        {
+                .id = ZORRO_PROD_CBM_A4091_1,
+                .driver_data = (unsigned long)&zorro7xx_driver_data[2],
+        },
+        {
+                .id = ZORRO_PROD_CBM_A4091_2,
+                .driver_data = (unsigned long)&zorro7xx_driver_data[2],
+        },
+        {
+                .id = ZORRO_PROD_GVP_GFORCE_040_060,
+                .driver_data = (unsigned long)&zorro7xx_driver_data[3],
+        },
+        { 0 }
+};
+MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl);
+
+static int __devinit zorro7xx_init_one(struct zorro_dev *z,
+                                       const struct zorro_device_id *ent)
+{
+        struct Scsi_Host * host = NULL;
+        struct NCR_700_Host_Parameters *hostdata;
+        struct zorro_driver_data *zdd;
+        unsigned long board, ioaddr;
+
+        board = zorro_resource_start(z);
+        zdd = (struct zorro_driver_data *)ent->driver_data;
+
+        if (zdd->absolute) {
+                ioaddr = zdd->offset;
+        } else {
+                ioaddr = board + zdd->offset;
+        }
+
+        if (!zorro_request_device(z, zdd->name)) {
+                printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n",
+                       board);
+                return -EBUSY;
+        }
+
+        hostdata = kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
+        if (hostdata == NULL) {
+                printk(KERN_ERR "zorro7xx: 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 */
+        if (ioaddr > 0x01000000)
+                hostdata->base = ioremap(ioaddr, zorro_resource_len(z));
+        else
+                hostdata->base = (void __iomem *)ZTWO_VADDR(ioaddr);
+
+        hostdata->clock = 50;
+        hostdata->chip710 = 1;
+
+        /* Settings for at least WarpEngine 40xx */
+        hostdata->ctest7_extra = CTEST7_TT1;
+
+        zorro7xx_scsi_driver_template.name = zdd->name;
+
+        /* and register the chip */
+        host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata,
+                              &z->dev);
+        if (!host) {
+                printk(KERN_ERR "zorro7xx: No host detected; "
+                                "board configuration problem?\n");
+                goto out_free;
+        }
+
+        host->this_id = 7;
+        host->base = ioaddr;
+        host->irq = IRQ_AMIGA_PORTS;
+
+        if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi",
+                        host)) {
+                printk(KERN_ERR "zorro7xx: request_irq failed\n");
+                goto out_put_host;
+        }
+
+        scsi_scan_host(host);
+
+        return 0;
+
+ out_put_host:
+        scsi_host_put(host);
+ out_free:
+        if (ioaddr > 0x01000000)
+                iounmap(hostdata->base);
+        kfree(hostdata);
+ out_release:
+        zorro_release_device(z);
+
+        return -ENODEV;
+}
+
+static __devexit void zorro7xx_remove_one(struct zorro_dev *z)
+{
+        struct Scsi_Host *host = dev_to_shost(&z->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);
+        zorro_release_device(z);
+}
+
+static struct zorro_driver zorro7xx_driver = {
+        .name     = "zorro7xx-scsi",
+        .id_table = zorro7xx_zorro_tbl,
+        .probe    = zorro7xx_init_one,
+        .remove   = __devexit_p(zorro7xx_remove_one),
+};
+
+static int __init zorro7xx_scsi_init(void)
+{
+        return zorro_register_driver(&zorro7xx_driver);
+}
+
+static void __exit zorro7xx_scsi_exit(void)
+{
+        zorro_unregister_driver(&zorro7xx_driver);
+}
+
+module_init(zorro7xx_scsi_init);
+module_exit(zorro7xx_scsi_exit);