drivers/scsi/bvme6000.c

   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/blk.h>
   9 #include <linux/sched.h>
  10 #include <linux/version.h>
  11 #include <linux/zorro.h>
  12
  13 #include <asm/setup.h>
  14 #include <asm/page.h>
  15 #include <asm/pgtable.h>
  16 #include <asm/bvme6000hw.h>
  17 #include <asm/irq.h>
  18
  19 #include "scsi.h"
  20 #include "hosts.h"
  21 #include "53c7xx.h"
  22 #include "bvme6000.h"
  23
  24 #include<linux/stat.h>
  25
  26 struct proc_dir_entry proc_scsi_bvme6000 = {
  27     PROC_SCSI_BVME6000, 8, "BVME6000",
  28     S_IFDIR | S_IRUGO | S_IXUGO, 2
  29 };
  30
  31 extern ncr53c7xx_init (Scsi_Host_Template *tpnt, int board, int chip,
  32                         u32 base, int io_port, int irq, int dma,
  33                         long long options, int clock);
  34
  35 int bvme6000_scsi_detect(Scsi_Host_Template *tpnt)
  36 {
  37     static unsigned char called = 0;
  38     int clock;
  39     long long options;
  40
  41     if (called)
  42         return 0;
  43     if (!MACH_IS_BVME6000)
  44         return 0;
  45
  46     tpnt->proc_dir = &proc_scsi_bvme6000;
  47
  48     options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT;
  49
  50     clock = 40000000;   /* 66MHz SCSI Clock */
  51
  52     ncr53c7xx_init(tpnt, 0, 710, (u32)BVME_NCR53C710_BASE,
  53                         0, BVME_IRQ_SCSI, DMA_NONE,
  54                         options, clock);
  55     called = 1;
  56     return 1;
  57 }