sys/dev/pci/pciide_geode_reg.h

   1 /*      $NetBSD: pciide_geode_reg.h,v 1.5 2007/12/25 18:33:41 perry Exp $       */
   2
   3 /*
   4  * Copyright (c) 2004 Manuel Bouyer.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  *
  26  */
  27
  28 #define CS5530_PIO_REG(chan, drv)       (0x20 + (chan) * 0x10 + (drv) * 0x8)
  29 #define CS5530_DMA_REG(chan, drv)       (0x24 + (chan) * 0x10 + (drv) * 0x8)
  30 #define CS5530_DMA_REG_PIO_FORMAT       0x80000000 /* select PIO format 1 */
  31 #define CS5530_DMA_REG_UDMA             0x00100000 /* enable Ultra-DMA */
  32
  33 /*
  34  * Recommended values from the cs5530 data sheet.
  35  * Note that the udma values include CS5530_DMA_REG_UDMA.
  36  * However, from the datasheet bits 30-21 should be reserved, yet
  37  * geode_udma sets bit 23 to 1. I don't know if it's the definition of
  38  * DMA_REG_UDMA which is wrong (bit 23 instead of 20) or these values.
  39  */
  40 static const int32_t geode_cs5530_pio[] __unused =
  41     {0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010};
  42 static const int32_t geode_cs5530_dma[] __unused =
  43     {0x00077771, 0x00012121, 0x00002020};
  44 static const int32_t geode_cs5530_udma[] __unused =
  45     {0x00921250, 0x00911140, 0x00911030};
  46
  47 #define SC1100_PIO_REG(chan, drv)       (0x40 + (chan) * 0x10 + (drv) * 0x8)
  48 #define SC1100_DMA_REG(chan, drv)       (0x44 + (chan) * 0x10 + (drv) * 0x8)
  49
  50 /* Timings from FreeBSD */
  51 static const int32_t geode_sc1100_pio[] __unused =
  52     {0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010, 0x00803020,
  53      0x20102010, 0x00100010, 0x00100010, 0x00100010, 0x00100010};
  54 static const int32_t geode_sc1100_dma[] __unused =
  55     {0x80077771, 0x80012121, 0x80002020};
  56 static const int32_t geode_sc1100_udma[] __unused =
  57     {0x80921250, 0x80911140, 0x80911030};