1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/scsi/amiga7xx.c b/drivers/scsi/amiga7xx.c
new file mode 100644
index 00000000000..5f13546d639
--- /dev/null
+++ b/drivers/scsi/amiga7xx.c
@@ -0,0 +1,141 @@
+/*
+ * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
+ *		Amiga MacroSystemUS WarpEngine SCSI controller.
+ *		Amiga Technologies A4000T 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.
+ */
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/blkdev.h>
+#include <linux/sched.h>
+#include <linux/version.h>
+#include <linux/config.h>
+#include <linux/zorro.h>
+#include <linux/stat.h>
+
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/amigaints.h>
+#include <asm/amigahw.h>
+#include <asm/dma.h>
+#include <asm/irq.h>
+
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+#include "53c7xx.h"
+#include "amiga7xx.h"
+
+
+static int amiga7xx_register_one(Scsi_Host_Template *tpnt,
+				 unsigned long address)
+{
+    long long options;
+    int clock;
+
+    if (!request_mem_region(address, 0x1000, "ncr53c710"))
+	return 0;
+
+    address = (unsigned long)z_ioremap(address, 0x1000);
+    options = OPTION_MEMORY_MAPPED | OPTION_DEBUG_TEST1 | OPTION_INTFLY |
+	      OPTION_SYNCHRONOUS | OPTION_ALWAYS_SYNCHRONOUS |
+	      OPTION_DISCONNECT;
+    clock = 50000000;	/* 50 MHz SCSI Clock */
+    ncr53c7xx_init(tpnt, 0, 710, address, 0, IRQ_AMIGA_PORTS, DMA_NONE,
+		   options, clock);
+    return 1;
+}
+
+
+#ifdef CONFIG_ZORRO
+
+static struct {
+    zorro_id id;
+    unsigned long offset;
+    int absolute;	/* offset is absolute address */
+} amiga7xx_table[] = {
+    { .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, .offset = 0xf40000,
+      .absolute = 1 },
+    { .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, .offset = 0x40000 },
+    { .id = ZORRO_PROD_CBM_A4091_1, .offset = 0x800000 },
+    { .id = ZORRO_PROD_CBM_A4091_2, .offset = 0x800000 },
+    { .id = ZORRO_PROD_GVP_GFORCE_040_060, .offset = 0x40000 },
+    { 0 }
+};
+
+static int __init amiga7xx_zorro_detect(Scsi_Host_Template *tpnt)
+{
+    int num = 0, i;
+    struct zorro_dev *z = NULL;
+    unsigned long address;
+
+    while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
+	for (i = 0; amiga7xx_table[i].id; i++)
+	    if (z->id == amiga7xx_table[i].id)
+		break;
+	if (!amiga7xx_table[i].id)
+	    continue;
+	if (amiga7xx_table[i].absolute)
+	    address = amiga7xx_table[i].offset;
+	else
+	    address = z->resource.start + amiga7xx_table[i].offset;
+	num += amiga7xx_register_one(tpnt, address);
+    }
+    return num;
+}
+
+#endif /* CONFIG_ZORRO */
+
+
+int __init amiga7xx_detect(Scsi_Host_Template *tpnt)
+{
+    static unsigned char called = 0;
+    int num = 0;
+
+    if (called || !MACH_IS_AMIGA)
+	return 0;
+
+    tpnt->proc_name = "Amiga7xx";
+
+    if (AMIGAHW_PRESENT(A4000_SCSI))
+	num += amiga7xx_register_one(tpnt, 0xdd0040);
+
+#ifdef CONFIG_ZORRO
+    num += amiga7xx_zorro_detect(tpnt);
+#endif
+
+    called = 1;
+    return num;
+}
+
+static int amiga7xx_release(struct Scsi_Host *shost)
+{
+	if (shost->irq)
+		free_irq(shost->irq, NULL);
+	if (shost->dma_channel != 0xff)
+		free_dma(shost->dma_channel);
+	if (shost->io_port && shost->n_io_port)
+		release_region(shost->io_port, shost->n_io_port);
+	scsi_unregister(shost);
+	return 0;
+}
+
+static Scsi_Host_Template driver_template = {
+	.name			= "Amiga NCR53c710 SCSI",
+	.detect			= amiga7xx_detect,
+	.release		= amiga7xx_release,
+	.queuecommand		= NCR53c7xx_queue_command,
+	.abort			= NCR53c7xx_abort,
+	.reset			= NCR53c7xx_reset,
+	.can_queue		= 24,
+	.this_id		= 7,
+	.sg_tablesize		= 63,
+	.cmd_per_lun		= 3,
+	.use_clustering		= DISABLE_CLUSTERING
+};
+
+
+#include "scsi_module.c"