1 # SPDX-License-Identifier: GPL-2.0-or-later
4 # NXP (former Freescale) Kinetis Kx series devices
5 # Also used for Cortex-M4 equipped members of KVx and KE1xF series
8 source [find target/swj-dp.tcl]
10 if { [info exists CHIPNAME] } {
11 set _CHIPNAME $CHIPNAME
16 # Work-area is a space in RAM used for flash programming
18 if { [info exists WORKAREASIZE] } {
19 set _WORKAREASIZE $WORKAREASIZE
21 set _WORKAREASIZE 0x1000
24 if { [info exists CPUTAPID] } {
25 set _CPUTAPID $CPUTAPID
28 set _CPUTAPID 0x4ba00477
30 set _CPUTAPID 0x2ba01477
34 swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
35 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
37 set _TARGETNAME $_CHIPNAME.cpu
38 target create $_TARGETNAME cortex_m -dap $_CHIPNAME.dap
40 $_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
42 set _FLASHNAME $_CHIPNAME.pflash
43 flash bank $_FLASHNAME kinetis 0 0 0 0 $_TARGETNAME
48 reset_config srst_nogate
52 echo "!!!!!!!!!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!!!!!!!"
53 echo " Kinetis MCUs have a MDM-AP dedicated mainly to MCU security related functions."
54 echo " A high level adapter (like a ST-Link) you are currently using cannot access"
55 echo " the MDM-AP, so commands like 'mdm mass_erase' are not available in your"
56 echo " configuration. Also security locked state of the device will not be reported."
57 echo " Expect problems connecting to a blank device without boot ROM."
59 echo " Be very careful as you can lock the device though there is no way to unlock"
60 echo " it without mass erase. Don't set write protection on the first block."
61 echo "!!!!!!!!!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!!!!!!!"
64 # Detect secured MCU or boot lock-up in RESET/WDOG loop
65 $_TARGETNAME configure -event examine-fail {
66 kinetis mdm check_security
68 # During RESET/WDOG loop the target is sometimes falsely examined
69 $_TARGETNAME configure -event examine-end {
70 kinetis mdm check_security
73 # if srst is not fitted use SYSRESETREQ to
74 # perform a soft reset
75 cortex_m reset_config sysresetreq
78 # Disable watchdog not to disturb OpenOCD algorithms running on MCU
79 # (e.g. armv7m_checksum_memory() in verify_image)
80 # Flash driver also disables watchdog before FTFA flash programming.
81 $_TARGETNAME configure -event reset-init {