sys/dev/pci/pciide_piccolo_reg.h

   1 /*      $NetBSD: pciide_piccolo.h_reg.h,v 1.0 2008/04/28 00:00:00 djb   */
   2
   3 /*
   4  * Copyright (c) 2009 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /*
  30  * Register definitions for the Toshiba PICCOLO, by SWAG!
  31  */
  32
  33 #define PICCOLO_PIO_TIMING 0x50
  34 #define PICCOLO_DMA_TIMING 0x5c
  35
  36 #define PICCOLO_PIO_MASK 0xffffe088
  37 #define PICCOLO_DMA_MASK 0xffffe088
  38 #define PICCOLO_UDMA_MASK 0x78ffe088
  39
  40 /* TIMING SWAG!!! */
  41
  42 /*
  43  * first digit is command active, next two are front porch and back porch
  44  * command active >= minimum for mode
  45  * front porch + back porch + command active >= cycle time for mode
  46  * values below may need adjustment
  47  */
  48 static const u_int32_t piccolo_pio_times[]
  49     __unused = {
  50 /*        programmed               actual       */
  51         0x0566,
  52         0x0433,
  53         0x0311,
  54         0x0201,
  55         0x0200,         /* PIO 4, 150ns cycle (120ns is spec), 90ns command active (70ns is spec), 30ns setup and hold */
  56         0x0100
  57
  58 };
  59
  60 static const u_int32_t piccolo_sw_dma_times[]
  61     __unused = {
  62 /*        programmed               actual       */
  63         0x0f77
  64 };
  65
  66 static const u_int32_t piccolo_mw_dma_times[]
  67      __unused = {
  68 /*        programmed               actual       */
  69         0x0655,
  70         0x0200,
  71         0x0200,
  72         0x0100
  73 };
  74
  75 /* XXX Is MSB UDMA enable? Can't set it. Seems to work without being set. */
  76 static const u_int32_t piccolo_udma_times[]
  77     __unused = {
  78 /*        programmed               actual       */
  79         0x84000222,
  80         0x83000111,
  81         0x82000000      /* UDMA 2, 120ns cycle (117ns is spec), 60ns command active (55ns is spec), 30ns setup and hold */
  82 };