1 files changed, 103 insertions, 0 deletions
diff --git a/tcl/target/stm32g4x.cfg b/tcl/target/stm32g4x.cfg
new file mode 100644
index 0000000..9f144a0
--- /dev/null
+++ b/tcl/target/stm32g4x.cfg
@@ -0,0 +1,103 @@
+# script for stm32g4x family
+
+#
+# stm32g4 devices support both JTAG and SWD transports.
+#
+source [find target/swj-dp.tcl]
+source [find mem_helper.tcl]
+
+if { [info exists CHIPNAME] } {
+	set _CHIPNAME $CHIPNAME
+} else {
+	set _CHIPNAME stm32g4x
+}
+
+set _ENDIAN little
+
+# Work-area is a space in RAM used for flash programming
+# Smallest current target has 32kB ram, use 16kB by default to avoid surprises
+if { [info exists WORKAREASIZE] } {
+	set _WORKAREASIZE $WORKAREASIZE
+} else {
+	set _WORKAREASIZE 0x4000
+}
+
+#jtag scan chain
+if { [info exists CPUTAPID] } {
+	set _CPUTAPID $CPUTAPID
+} else {
+	if { [using_jtag] } {
+		# See STM Document RM0440
+		# Section 46.6.3 - corresponds to Cortex-M4 r0p1
+		set _CPUTAPID 0x4ba00477
+	} {
+		set _CPUTAPID 0x2ba01477
+	}
+}
+
+swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
+
+if {[using_jtag]} {
+	jtag newtap $_CHIPNAME bs -irlen 5
+}
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
+
+$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
+
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME stm32l4x 0 0 0 0 $_TARGETNAME
+
+if { [info exists QUADSPI] && $QUADSPI } {
+	set a [llength [flash list]]
+	set _QSPINAME $_CHIPNAME.qspi
+	flash bank $_QSPINAME stmqspi 0x90000000 0 0 0 $_TARGETNAME 0xA0001000
+}
+
+# reasonable default
+adapter speed 2000
+
+adapter srst delay 100
+if {[using_jtag]} {
+	jtag_ntrst_delay 100
+}
+
+reset_config srst_nogate
+
+if {![using_hla]} {
+	# if srst is not fitted use SYSRESETREQ to
+	# perform a soft reset
+	cortex_m reset_config sysresetreq
+}
+
+$_TARGETNAME configure -event reset-init {
+	# CPU comes out of reset with HSION | HSIRDY.
+	# Use HSI 16 MHz clock, compliant even with VOS == 2.
+	# 1 WS compliant with VOS == 2 and 16 MHz.
+	mmw 0x40022000 0x00000001 0x0000000E	;# FLASH_ACR: Latency = 1
+	mmw 0x40021000 0x00000100 0x00000000	;# RCC_CR |= HSION
+	mmw 0x40021008 0x00000001 0x00000002	;# RCC_CFGR: SW=HSI16
+}
+
+$_TARGETNAME configure -event reset-start {
+	# Reset clock is HSI (16 MHz)
+	adapter speed 2000
+}
+
+$_TARGETNAME configure -event examine-end {
+	# DBGMCU_CR |= DBG_STANDBY | DBG_STOP | DBG_SLEEP
+	mmw 0xE0042004 0x00000007 0
+
+	# Stop watchdog counters during halt
+	# DBGMCU_APB1_FZR1 |= DBG_IWDG_STOP | DBG_WWDG_STOP
+	mmw 0xE0042008 0x00001800 0
+}
+
+$_TARGETNAME configure -event trace-config {
+	# Set TRACE_IOEN; TRACE_MODE is set to async; when using sync
+	# change this value accordingly to configure trace pins
+	# assignment
+	mmw 0xE0042004 0x00000020 0
+}