# Script for freescale DSP568013

if { [info exists CHIPNAME] } {
   set _CHIPNAME $CHIPNAME
} else {
   set _CHIPNAME dsp568013
}

if { [info exists ENDIAN] } {
   set _ENDIAN $ENDIAN
} else {
  # this defaults to a big endian
   set _ENDIAN little
}

if { [info exists CPUTAPID] } {
   set _CPUTAPID $CPUTAPID
} else {
   set _CPUTAPID 0x01f2401d
}

#jtag speed
adapter speed 800

reset_config srst_only

#MASTER tap
jtag newtap $_CHIPNAME chp -irlen 8 -ircapture 1 -irmask 0x03 -expected-id $_CPUTAPID

#CORE tap
jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 1 -irmask 0x03 -disable -expected-id 0x02211004

#target configuration - There is only 1 tap at a time, hence only 1 target is defined.
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME dsp5680xx -endian $_ENDIAN -chain-position $_TARGETNAME

# Setup the interesting tap
# 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)
jtag configure $_CHIPNAME.chp -event setup "
     jtag tapenable $_TARGETNAME
     poll off
"

#select CORE tap by modifying the TLM register.
#to be used when MASTER tap is selected.
jtag configure $_TARGETNAME -event tap-enable "
     irscan $_CHIPNAME.chp 0x05;
     drscan $_CHIPNAME.chp 4 0x02;
     jtag tapdisable $_CHIPNAME.chp;
"

#select MASTER tap by modifying the TLM register.
#to be used when CORE tap is selected.
jtag configure $_CHIPNAME.chp -event tap-enable "
     irscan $_TARGETNAME 0x08;
     drscan $_TARGETNAME 4 0x1;
     jtag tapdisable $_TARGETNAME;
"

#disables the master tap
jtag configure $_TARGETNAME -event tap-disable "
"
#TODO FIND SMARTER WAY.

jtag configure $_CHIPNAME.chp -event tap-disable "
"
#TODO FIND SMARTER WAY.


#working area at base of ram
$_TARGETNAME configure -work-area-virt 0

#setup flash
set _FLASHNAME $_CHIPNAME.flash
flash bank $_FLASHNAME dsp5680xx_flash 0 0 2 1 $_TARGETNAME
