stm32w: add STM32w108xx generic configuration

Add generic TCL configuration for STM STM108Wxx chips.

Change-Id: I981cdccb78833f442c3be4188c8c023064067e4e
Signed-off-by: Giuseppe Barba <giuseppe.barba@gmail.com>
Reviewed-on: http://openocd.zylin.com/1439
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

tcl/target/stm32w108xx.cfg

@@ -0,0 +1,61 @@
+#
+# Target configuration for the ST STM32W108xx chips
+#
+# Processor: ARM Cortex M3
+# Date:      2013-06-09
+# Author:    Giuseppe Barba <giuseppe.barba@gmail.com>
+
+if { [info exists CHIPNAME] == 0 } {
+   set _CHIPNAME stm32w108
+} else {
+   set _CHIPNAME $CHIPNAME
+}
+
+# Work-area is a space in RAM used for flash programming
+# By default use 8kB
+if { [info exists WORKAREASIZE] } {
+   set _WORKAREASIZE $WORKAREASIZE
+} else {
+   set _WORKAREASIZE 0x2000
+}
+
+if { [info exists CPUTAPID] } {
+   set _CPUTAPID $CPUTAPID
+} else {
+   set _CPUTAPID 0x3ba00477
+}
+
+if { [info exists ENDIAN] } {
+   set _ENDIAN $ENDIAN
+} else {
+   set _ENDIAN little
+}
+
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+
+if { [info exists BSTAPID] } {
+   set _BSTAPID $BSTAPID
+   jtag newtap $_CHIPNAME bs -irlen 4 -ircapture 0xe -irmask 0xf -expected-id 0x269a862b
+} else {
+   set _BSTAPID_1 0x169a862b
+   set _BSTAPID_2 0x269a862b
+   jtag newtap $_CHIPNAME bs -irlen 4 -ircapture 0xe -irmask 0xf \
+		-expected-id $_BSTAPID_1 -expected-id $_BSTAPID_2
+}
+
+#
+# Set Target
+#
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position $_TARGETNAME
+$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
+
+
+# Use the flash driver from the EM357
+set _FLASHNAME $_CHIPNAME.flash
+
+# 64k (0x10000) of flash
+flash bank $_FLASHNAME em357 0x08000000 0x10000 0 0 $_TARGETNAME
+
+cortex_m reset_config sysresetreq
+