include/405_mal.h

   1 /* include/mal.h, openbios_walnut, walnut_bios 8/6/99 08:48:40 */
   2 /*----------------------------------------------------------------------------+
   3 |   This source code is dual-licensed.  You may use it under the terms of the
   4 |   GNU General Public License version 2, or under the license below.
   5 |
   6 |       This source code has been made available to you by IBM on an AS-IS
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   8 |       copyrights to use it in any way he or she deems fit, including
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  10 |       with or without modifications.  No license under IBM patents or
  11 |       patent applications is to be implied by the copyright license.
  12 |
  13 |       Any user of this software should understand that IBM cannot provide
  14 |       technical support for this software and will not be responsible for
  15 |       any consequences resulting from the use of this software.
  16 |
  17 |       Any person who transfers this source code or any derivative work
  18 |       must include the IBM copyright notice, this paragraph, and the
  19 |       preceding two paragraphs in the transferred software.
  20 |
  21 |       COPYRIGHT   I B M   CORPORATION 1999
  22 |       LICENSED MATERIAL  -  PROGRAM PROPERTY OF I B M
  23 +----------------------------------------------------------------------------*/
  24 /*----------------------------------------------------------------------------+
  25 |
  26 |  File Name:   mal.h
  27 |
  28 |  Function:    Header file for the MAL (MADMAL) macro on the 405GP.
  29 |
  30 |  Author:      Mark Wisner
  31 |
  32 |  Change Activity-
  33 |
  34 |  Date        Description of Change                                       BY
  35 |  ---------   ---------------------                                       ---
  36 |  29-Apr-99   Created                                                     MKW
  37 |
  38 +----------------------------------------------------------------------------*/
  39 /*----------------------------------------------------------------------------+
  40 |  17-Nov-03  Travis B. Sawyer, Sandburst Corporation, tsawyer@sandburst.com
  41 |             Added register bit definitions to support multiple channels
  42 +----------------------------------------------------------------------------*/
  43 #ifndef _mal_h_
  44 #define _mal_h_
  45 /* MADMAL transmit and receive status/control bits  */
  46 /* for COMMAC bits, refer to the COMMAC header file */
  47
  48 #define MAL_TX_CTRL_READY 0x8000
  49 #define MAL_TX_CTRL_WRAP  0x4000
  50 #define MAL_TX_CTRL_CM    0x2000
  51 #define MAL_TX_CTRL_LAST  0x1000
  52 #define MAL_TX_CTRL_INTR  0x0400
  53
  54 #define MAL_RX_CTRL_EMPTY 0x8000
  55 #define MAL_RX_CTRL_WRAP  0x4000
  56 #define MAL_RX_CTRL_CM    0x2000
  57 #define MAL_RX_CTRL_LAST  0x1000
  58 #define MAL_RX_CTRL_FIRST 0x0800
  59 #define MAL_RX_CTRL_INTR  0x0400
  60
  61       /* Configuration Reg  */
  62 #define MAL_CR_MMSR       0x80000000
  63 #define MAL_CR_PLBP_1     0x00400000   /* lowsest is 00 */
  64 #define MAL_CR_PLBP_2     0x00800000
  65 #define MAL_CR_PLBP_3     0x00C00000   /* highest       */
  66 #define MAL_CR_GA         0x00200000
  67 #define MAL_CR_OA         0x00100000
  68 #define MAL_CR_PLBLE      0x00080000
  69 #define MAL_CR_PLBLT_1  0x00040000
  70 #define MAL_CR_PLBLT_2  0x00020000
  71 #define MAL_CR_PLBLT_3  0x00010000
  72 #define MAL_CR_PLBLT_4  0x00008000
  73 #define MAL_CR_PLBLT_DEFAULT 0x00078000 /* ????? */
  74 #define MAL_CR_PLBB       0x00004000
  75 #define MAL_CR_OPBBL      0x00000080
  76 #define MAL_CR_EOPIE      0x00000004
  77 #define MAL_CR_LEA        0x00000002
  78 #define MAL_CR_MSD        0x00000001
  79
  80     /* Error Status Reg    */
  81 #define MAL_ESR_EVB       0x80000000
  82 #define MAL_ESR_CID       0x40000000
  83 #define MAL_ESR_DE        0x00100000
  84 #define MAL_ESR_ONE       0x00080000
  85 #define MAL_ESR_OTE       0x00040000
  86 #define MAL_ESR_OSE       0x00020000
  87 #define MAL_ESR_PEIN      0x00010000
  88       /* same bit position as the IER */
  89       /* VV                      VV   */
  90 #define MAL_ESR_DEI       0x00000010
  91 #define MAL_ESR_ONEI      0x00000008
  92 #define MAL_ESR_OTEI      0x00000004
  93 #define MAL_ESR_OSEI      0x00000002
  94 #define MAL_ESR_PBEI      0x00000001
  95       /* ^^                      ^^   */
  96       /* Mal IER                      */
  97 #if defined(CONFIG_440SPE) || \
  98     defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
  99     defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
 100     defined(CONFIG_405EX)
 101 #define MAL_IER_PT        0x00000080
 102 #define MAL_IER_PRE       0x00000040
 103 #define MAL_IER_PWE       0x00000020
 104 #define MAL_IER_DE        0x00000010
 105 #define MAL_IER_OTE       0x00000004
 106 #define MAL_IER_OE        0x00000002
 107 #define MAL_IER_PE        0x00000001
 108 #else
 109 #define MAL_IER_DE        0x00000010
 110 #define MAL_IER_NE        0x00000008
 111 #define MAL_IER_TE        0x00000004
 112 #define MAL_IER_OPBE      0x00000002
 113 #define MAL_IER_PLBE      0x00000001
 114 #endif
 115
 116 /* MAL Channel Active Set and Reset Registers */
 117 #define MAL_TXRX_CASR   (0x80000000)
 118
 119 #define MAL_TXRX_CASR_V(__x)  (__x)  /* Channel 0 shifts 0, channel 1 shifts 1, etc */
 120
 121
 122 /* MAL Buffer Descriptor structure */
 123 typedef struct {
 124   short  ctrl;              /* MAL / Commac status control bits */
 125   short  data_len;          /* Max length is 4K-1 (12 bits)     */
 126   char  *data_ptr;          /* pointer to actual data buffer    */
 127 } mal_desc_t;
 128
 129 #endif