tcl/target/dsp568013.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 # Script for freescale DSP568013
   4
   5 if { [info exists CHIPNAME] } {
   6    set _CHIPNAME $CHIPNAME
   7 } else {
   8    set _CHIPNAME dsp568013
   9 }
  10
  11 if { [info exists ENDIAN] } {
  12    set _ENDIAN $ENDIAN
  13 } else {
  14   # this defaults to a big endian
  15    set _ENDIAN little
  16 }
  17
  18 if { [info exists CPUTAPID] } {
  19    set _CPUTAPID $CPUTAPID
  20 } else {
  21    set _CPUTAPID 0x01f2401d
  22 }
  23
  24 #jtag speed
  25 adapter speed 800
  26
  27 reset_config srst_only
  28
  29 #MASTER tap
  30 jtag newtap $_CHIPNAME chp -irlen 8 -ircapture 1 -irmask 0x03 -expected-id $_CPUTAPID
  31
  32 #CORE tap
  33 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 1 -irmask 0x03 -disable -expected-id 0x02211004
  34
  35 #target configuration - There is only 1 tap at a time, hence only 1 target is defined.
  36 set _TARGETNAME $_CHIPNAME.cpu
  37 target create $_TARGETNAME dsp5680xx -endian $_ENDIAN -chain-position $_TARGETNAME
  38
  39 # Setup the interesting tap
  40 # Disable polling to be able to get idcode from core tap. If re enabled, can be re enabled, but it should be disabled to correctly unlock flash (operations require certain instruction to be in the IR register during reset, and polling would change this)
  41 jtag configure $_CHIPNAME.chp -event setup "
  42      jtag tapenable $_TARGETNAME
  43      poll off
  44 "
  45
  46 #select CORE tap by modifying the TLM register.
  47 #to be used when MASTER tap is selected.
  48 jtag configure $_TARGETNAME -event tap-enable "
  49      irscan $_CHIPNAME.chp 0x05;
  50      drscan $_CHIPNAME.chp 4 0x02;
  51      jtag tapdisable $_CHIPNAME.chp;
  52 "
  53
  54 #select MASTER tap by modifying the TLM register.
  55 #to be used when CORE tap is selected.
  56 jtag configure $_CHIPNAME.chp -event tap-enable "
  57      irscan $_TARGETNAME 0x08;
  58      drscan $_TARGETNAME 4 0x1;
  59      jtag tapdisable $_TARGETNAME;
  60 "
  61
  62 #disables the master tap
  63 jtag configure $_TARGETNAME -event tap-disable "
  64 "
  65 #TODO FIND SMARTER WAY.
  66
  67 jtag configure $_CHIPNAME.chp -event tap-disable "
  68 "
  69 #TODO FIND SMARTER WAY.
  70
  71
  72 #working area at base of ram
  73 $_TARGETNAME configure -work-area-virt 0
  74
  75 #setup flash
  76 set _FLASHNAME $_CHIPNAME.flash
  77 flash bank $_FLASHNAME dsp5680xx_flash 0 0 2 1 $_TARGETNAME