/* * 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/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"