1 # SPDX-License-Identifier: GPL-2.0-or-later
4 # Target configuration for the ST STM32W108xx chips
6 # Processor: ARM Cortex-M3
8 # Author: Giuseppe Barba <giuseppe.barba@gmail.com>
11 # stm32 devices support both JTAG and SWD transports.
13 source [find target/swj-dp.tcl]
15 if { [info exists CHIPNAME] == 0 } {
16 set _CHIPNAME stm32w108
18 set _CHIPNAME $CHIPNAME
21 # Work-area is a space in RAM used for flash programming
23 if { [info exists WORKAREASIZE] } {
24 set _WORKAREASIZE $WORKAREASIZE
26 set _WORKAREASIZE 0x2000
29 if { [info exists CPUTAPID] } {
30 set _CPUTAPID $CPUTAPID
33 set _CPUTAPID 0x3ba00477
35 set _CPUTAPID 0x1ba01477
41 swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
42 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
45 if { [info exists BSTAPID] } {
47 jtag newtap $_CHIPNAME bs -irlen 4 -ircapture 0xe -irmask 0xf -expected-id _BSTAPID
49 set _BSTAPID_1 0x169a862b
50 set _BSTAPID_2 0x269a862b
51 jtag newtap $_CHIPNAME bs -irlen 4 -ircapture 0xe -irmask 0xf \
52 -expected-id $_BSTAPID_1 -expected-id $_BSTAPID_2
58 set _TARGETNAME $_CHIPNAME.cpu
59 target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
60 $_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
63 # Use the flash driver from the EM357
64 set _FLASHNAME $_CHIPNAME.flash
66 # 64k (0x10000) of flash
67 flash bank $_FLASHNAME em357 0x08000000 0x10000 0 0 $_TARGETNAME
69 reset_config srst_nogate
72 cortex_m reset_config sysresetreq