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/hilscher_netx500.cfg

@@ -0,0 +1,47 @@
+#Hilscher netX 500 CPU
+
+if { [info exists CHIPNAME] } {
+   set _CHIPNAME $CHIPNAME
+} else {
+   set _CHIPNAME netx500
+}
+
+if { [info exists ENDIAN] } {
+   set _ENDIAN $ENDIAN
+} else {
+   set _ENDIAN little
+}
+
+if { [info exists CPUTAPID] } {
+   set _CPUTAPID $CPUTAPID
+} else {
+   set _CPUTAPID 0x07926021
+}
+
+# jtag scan chain
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+
+# that TAP is associated with a target
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME
+
+proc mread32 {addr} {
+  set value(0) 0
+  mem2array value 32 $addr 1
+  return $value(0)
+}
+
+# This function must be called on netX100/500 right after halt
+# If it is called later the needed register cannot be written anymore
+proc sdram_fix { } {
+
+  set accesskey [mread32 0x00100070]
+  mww 0x00100070 [expr $accesskey]
+  mww 0x0010002c 0x00000001
+
+  if {[expr [mread32 0x0010002c] & 0x07] == 0x07} {
+	 puts "SDRAM Fix was not executed. Probably your CPU halted too late and the register is already locked!"
+  } else {
+	 puts "SDRAM Fix succeeded!"
+  }
+}