1/* 2 * Detection routine for the NCR53c710 based MVME16x SCSI Controllers for Linux. 3 * 4 * Based on work by Alan Hourihane 5 */ 6#include <linux/types.h> 7#include <linux/mm.h> 8#include <linux/blkdev.h> 9 10#include <asm/page.h> 11#include <asm/pgtable.h> 12#include <asm/mvme16xhw.h> 13#include <asm/irq.h> 14 15#include "scsi.h" 16#include <scsi/scsi_host.h> 17#include "53c7xx.h" 18#include "mvme16x.h" 19 20#include<linux/stat.h> 21 22 23int mvme16x_scsi_detect(struct scsi_host_template *tpnt) 24{ 25 static unsigned char called = 0; 26 int clock; 27 long long options; 28 29 if (!MACH_IS_MVME16x) 30 return 0; 31 if (mvme16x_config & MVME16x_CONFIG_NO_SCSICHIP) { 32 printk ("SCSI detection disabled, SCSI chip not present\n"); 33 return 0; 34 } 35 if (called) 36 return 0; 37 38 tpnt->proc_name = "MVME16x"; 39 40 options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT; 41 42 clock = 66000000; /* 66MHz SCSI Clock */ 43 44 ncr53c7xx_init(tpnt, 0, 710, (unsigned long)0xfff47000, 45 0, MVME16x_IRQ_SCSI, DMA_NONE, 46 options, clock); 47 called = 1; 48 return 1; 49} 50 51static int mvme16x_scsi_release(struct Scsi_Host *shost) 52{ 53 if (shost->irq) 54 free_irq(shost->irq, NULL); 55 if (shost->dma_channel != 0xff) 56 free_dma(shost->dma_channel); 57 if (shost->io_port && shost->n_io_port) 58 release_region(shost->io_port, shost->n_io_port); 59 scsi_unregister(shost); 60 return 0; 61} 62 63static struct scsi_host_template driver_template = { 64 .name = "MVME16x NCR53c710 SCSI", 65 .detect = mvme16x_scsi_detect, 66 .release = mvme16x_scsi_release, 67 .queuecommand = NCR53c7xx_queue_command, 68 .abort = NCR53c7xx_abort, 69 .reset = NCR53c7xx_reset, 70 .can_queue = 24, 71 .this_id = 7, 72 .sg_tablesize = 63, 73 .cmd_per_lun = 3, 74 .use_clustering = DISABLE_CLUSTERING 75}; 76 77 78#include "scsi_module.c" 79