| /* |
| * 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/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(struct 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(struct 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(struct 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 struct 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" |