2 * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux.
3 * Amiga MacroSystemUS WarpEngine SCSI controller.
4 * Amiga Technologies A4000T SCSI controller.
5 * Amiga Technologies/DKB A4091 SCSI controller.
7 * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk>
8 * plus modifications of the 53c7xx.c driver to support the Amiga.
10 #include <linux/types.h>
12 #include <linux/blkdev.h>
13 #include <linux/sched.h>
14 #include <linux/version.h>
15 #include <linux/config.h>
16 #include <linux/zorro.h>
17 #include <linux/stat.h>
19 #include <asm/setup.h>
21 #include <asm/pgtable.h>
22 #include <asm/amigaints.h>
23 #include <asm/amigahw.h>
28 #include <scsi/scsi_host.h>
33 static int amiga7xx_register_one(Scsi_Host_Template *tpnt,
34 unsigned long address)
39 if (!request_mem_region(address, 0x1000, "ncr53c710"))
42 address = (unsigned long)z_ioremap(address, 0x1000);
43 options = OPTION_MEMORY_MAPPED | OPTION_DEBUG_TEST1 | OPTION_INTFLY |
44 OPTION_SYNCHRONOUS | OPTION_ALWAYS_SYNCHRONOUS |
46 clock = 50000000; /* 50 MHz SCSI Clock */
47 ncr53c7xx_init(tpnt, 0, 710, address, 0, IRQ_AMIGA_PORTS, DMA_NONE,
58 int absolute; /* offset is absolute address */
59 } amiga7xx_table[] = {
60 { .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, .offset = 0xf40000,
62 { .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, .offset = 0x40000 },
63 { .id = ZORRO_PROD_CBM_A4091_1, .offset = 0x800000 },
64 { .id = ZORRO_PROD_CBM_A4091_2, .offset = 0x800000 },
65 { .id = ZORRO_PROD_GVP_GFORCE_040_060, .offset = 0x40000 },
69 static int __init amiga7xx_zorro_detect(Scsi_Host_Template *tpnt)
72 struct zorro_dev *z = NULL;
73 unsigned long address;
75 while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
76 for (i = 0; amiga7xx_table[i].id; i++)
77 if (z->id == amiga7xx_table[i].id)
79 if (!amiga7xx_table[i].id)
81 if (amiga7xx_table[i].absolute)
82 address = amiga7xx_table[i].offset;
84 address = z->resource.start + amiga7xx_table[i].offset;
85 num += amiga7xx_register_one(tpnt, address);
90 #endif /* CONFIG_ZORRO */
93 int __init amiga7xx_detect(Scsi_Host_Template *tpnt)
95 static unsigned char called = 0;
98 if (called || !MACH_IS_AMIGA)
101 tpnt->proc_name = "Amiga7xx";
103 if (AMIGAHW_PRESENT(A4000_SCSI))
104 num += amiga7xx_register_one(tpnt, 0xdd0040);
107 num += amiga7xx_zorro_detect(tpnt);
114 static int amiga7xx_release(struct Scsi_Host *shost)
117 free_irq(shost->irq, NULL);
118 if (shost->dma_channel != 0xff)
119 free_dma(shost->dma_channel);
120 if (shost->io_port && shost->n_io_port)
121 release_region(shost->io_port, shost->n_io_port);
122 scsi_unregister(shost);
126 static Scsi_Host_Template driver_template = {
127 .name = "Amiga NCR53c710 SCSI",
128 .detect = amiga7xx_detect,
129 .release = amiga7xx_release,
130 .queuecommand = NCR53c7xx_queue_command,
131 .abort = NCR53c7xx_abort,
132 .reset = NCR53c7xx_reset,
137 .use_clustering = DISABLE_CLUSTERING
141 #include "scsi_module.c"