1 # SPDX-License-Identifier: GPL-2.0-or-later
3 # Script for freescale DSP568013
5 if { [info exists CHIPNAME] } {
6 set _CHIPNAME $CHIPNAME
8 set _CHIPNAME dsp568013
11 if { [info exists ENDIAN] } {
14 # this defaults to a big endian
18 if { [info exists CPUTAPID] } {
19 set _CPUTAPID $CPUTAPID
21 set _CPUTAPID 0x01f2401d
27 reset_config srst_only
30 jtag newtap $_CHIPNAME chp -irlen 8 -ircapture 1 -irmask 0x03 -expected-id $_CPUTAPID
33 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 1 -irmask 0x03 -disable -expected-id 0x02211004
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
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
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;
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;
62 #disables the master tap
63 jtag configure $_TARGETNAME -event tap-disable "
65 #TODO FIND SMARTER WAY.
67 jtag configure $_CHIPNAME.chp -event tap-disable "
69 #TODO FIND SMARTER WAY.
72 #working area at base of ram
73 $_TARGETNAME configure -work-area-virt 0
76 set _FLASHNAME $_CHIPNAME.flash
77 flash bank $_FLASHNAME dsp5680xx_flash 0 0 2 1 $_TARGETNAME