debuggers: import openocd-0.7.0

Initial check-in of openocd-0.7.0 as it can be downloaded from
http://sourceforge.net/projects/openocd/files/openocd/0.7.0/

Any modifications will follow.

Change-Id: I6949beaefd589e046395ea0cb80f4e1ab1654d55

debuggers/openocd/tcl/target/pxa270.cfg

@@ -0,0 +1,50 @@
+#Marvell/Intel PXA270 Script
+
+if { [info exists CHIPNAME] } {
+   set _CHIPNAME $CHIPNAME
+} else {
+   set _CHIPNAME pxa270
+}
+
+if { [info exists ENDIAN] } {
+   set _ENDIAN $ENDIAN
+} else {
+   set _ENDIAN little
+}
+
+#IDs for pxa270. Are there more?
+if { [info exists CPUTAPID] } {
+   set _CPUTAPID $CPUTAPID
+} else {
+  # set useful default
+   set _CPUTAPID 0x49265013
+}
+
+if { [info exists CPUTAPID2] } {
+   set _CPUTAPID2 $CPUTAPID2
+} else {
+  # set useful default
+   set _CPUTAPID2 0x79265013
+}
+
+if { [info exists CPUTAPID3] } {
+   set _CPUTAPID2 $CPUTAPID3
+} else {
+  # set useful default
+   set _CPUTAPID3 0x89265013
+}
+
+# set adapter_nsrst_delay to the delay introduced by your reset circuit
+# the rest of the needed delays are built into the openocd program
+adapter_nsrst_delay 260
+# set the jtag_ntrst_delay to the delay introduced by a reset circuit
+# the rest of the needed delays are built into the openocd program
+jtag_ntrst_delay 250
+
+set _TARGETNAME $_CHIPNAME.cpu
+jtag newtap $_CHIPNAME cpu -irlen 7 -ircapture 0x1 -irmask 0x7f -expected-id $_CPUTAPID -expected-id $_CPUTAPID2 -expected-id $_CPUTAPID3
+
+target create $_TARGETNAME xscale -endian $_ENDIAN -chain-position $_TARGETNAME -variant pxa27x
+# maps to PXA internal RAM. If you are using a PXA255
+# you must initialize SDRAM or leave this option off
+$_TARGETNAME configure -work-area-phys 0x5c000000 -work-area-size 0x10000 -work-area-backup 0