tcl/target: add config for Atmel SAMV / SAMS / SAME

Change-Id: Ia90a533fe3d07f9a67ce2da815146c612d80dd1b
Signed-off-by: Morgan Quigley <morgan@osrfoundation.org>
Reviewed-on: http://openocd.zylin.com/3091
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>

tcl/target/atsamv.cfg

@@ -0,0 +1,48 @@
+# ATMEL SAMV, SAMS, and SAME chips are Cortex-M7 parts
+# The chips are very similar; the SAMV series just has
+# more peripherals and seems like the "flagship" of the
+# family. This script will work for all of them.
+
+source [find target/swj-dp.tcl]
+
+if { [info exists CHIPNAME] } {
+   set _CHIPNAME $CHIPNAME
+} else {
+   set _CHIPNAME samv
+}
+
+if { [info exists ENDIAN] } {
+   set _ENDIAN $ENDIAN
+} else {
+   set _ENDIAN little
+}
+
+# Work-area is a space in RAM used for flash programming
+# By default use 16kB
+if { [info exists WORKAREASIZE] } {
+   set _WORKAREASIZE $WORKAREASIZE
+} else {
+   set _WORKAREASIZE 0x4000
+}
+
+if { [info exists CPUTAPID] } {
+   set _CPUTAPID $CPUTAPID
+} else {
+   set _CPUTAPID 0x0bd11477
+}
+
+swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME cortex_m -endian $_ENDIAN -chain-position $_TARGETNAME
+
+$_TARGETNAME configure -work-area-phys 0x20400000 -work-area-size $_WORKAREASIZE -work-area-backup 0
+
+adapter_khz 1800
+
+if {![using_hla]} {
+   # if srst is not fitted use SYSRESETREQ to
+   # perform a soft reset
+   cortex_m reset_config sysresetreq
+}
+