src/jtag/rlink/init.m4

   1 m4_divert(`-1')
   2 /***************************************************************************
   3  *   Copyright (C) 2008 Lou Deluxe                                         *
   4  *   lou.openocd012@fixit.nospammail.net                                   *
   5  *                                                                         *
   6  *   This program is free software; you can redistribute it and/or modify  *
   7  *   it under the terms of the GNU General Public License as published by  *
   8  *   the Free Software Foundation; either version 2 of the License, or     *
   9  *   (at your option) any later version.                                   *
  10  *                                                                         *
  11  *   This program is distributed in the hope that it will be useful,       *
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  14  *   GNU General Public License for more details.                          *
  15  *                                                                         *
  16  *   You should have received a copy of the GNU General Public License     *
  17  *   along with this program; if not, write to the                         *
  18  *   Free Software Foundation, Inc.,                                       *
  19  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  20  ***************************************************************************/
  21
  22 m4_undefine(`CTRL_MPEG_L')
  23 m4_undefine(`CTRL_CARD_L')
  24
  25 m4_ifelse(SHIFTER_PRESCALER, 1, `
  26         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x0')')
  27 ')
  28 m4_ifelse(SHIFTER_PRESCALER, 2, `
  29         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x2')')
  30         m4_define(`CTRL_CARD_L', `m4_eval(`0x8 | 0x1')')
  31 ')
  32 m4_ifelse(SHIFTER_PRESCALER, 8, `
  33         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x3')')
  34 ')
  35 m4_ifelse(SHIFTER_PRESCALER, 11, `
  36         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x4')')
  37 ')
  38 m4_ifelse(SHIFTER_PRESCALER, 64, `
  39         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x7')')
  40 ')
  41
  42 m4_ifdef(`CTRL_MPEG_L',,`
  43         m4_errprint(`SHIFTER_PRESCALER was not defined with a supported value
  44 ')      m4_m4exit(`1')
  45 ')
  46
  47 m4_divert(`0')m4_dnl
  48
  49 init:
  50         A.H = 0
  51
  52         A.L = 0
  53
  54         DR_MPEG = A     ; TDI and TCK start out low
  55         DR_CARD = A     ; TMS starts out low
  56
  57         A.L = 0x6
  58
  59         CTRL_FCI = A    ; MPEG and CARD driven by FCI
  60         DDR_MPEG = A    ; TDI and TCK are outputs
  61
  62         A.L = 0x1
  63
  64         X = A           ; X == 1
  65         DDR_CARD = A    ; TMS is output
  66
  67         A.L = CTRL_MPEG_L
  68         CTRL_MPEG = A
  69 m4_ifdef(`CTRL_CARD_L',
  70 `       A.L = 'CTRL_CARD_L`
  71 ')m4_dnl
  72         CTRL_CARD = A
  73
  74         STATUS STOP