src/jtag/drivers/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, see <http://www.gnu.org/licenses/>. *
  18  ***************************************************************************/
  19
  20 m4_undefine(`CTRL_MPEG_L')
  21 m4_undefine(`CTRL_CARD_L')
  22
  23 m4_ifelse(SHIFTER_PRESCALER, 1, `
  24         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x0')')
  25 ')
  26 m4_ifelse(SHIFTER_PRESCALER, 2, `
  27         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x2')')
  28         m4_define(`CTRL_CARD_L', `m4_eval(`0x8 | 0x1')')
  29 ')
  30 m4_ifelse(SHIFTER_PRESCALER, 8, `
  31         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x3')')
  32 ')
  33 m4_ifelse(SHIFTER_PRESCALER, 11, `
  34         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x4')')
  35 ')
  36 m4_ifelse(SHIFTER_PRESCALER, 64, `
  37         m4_define(`CTRL_MPEG_L', `m4_eval(`0x8 | 0x7')')
  38 ')
  39
  40 m4_ifdef(`CTRL_MPEG_L',,`
  41         m4_errprint(`SHIFTER_PRESCALER was not defined with a supported value
  42 ')      m4_m4exit(`1')
  43 ')
  44
  45 m4_divert(`0')m4_dnl
  46
  47 init:
  48         A.H = 0
  49
  50         A.L = 0
  51
  52         DR_MPEG = A     ; TDI and TCK start out low
  53         DR_CARD = A     ; TMS starts out low
  54
  55         A.L = 0x6
  56
  57         CTRL_FCI = A    ; MPEG and CARD driven by FCI
  58         DDR_MPEG = A    ; TDI and TCK are outputs
  59
  60         A.L = 0x1
  61
  62         X = A           ; X == 1
  63         DDR_CARD = A    ; TMS is output
  64
  65         A.L = CTRL_MPEG_L
  66         CTRL_MPEG = A
  67 m4_ifdef(`CTRL_CARD_L',
  68 `       A.L = 'CTRL_CARD_L`
  69 ')m4_dnl
  70         CTRL_CARD = A
  71
  72         STATUS STOP