Add openocd config files

Signed-off-by: Randall Spangler <rspangler@chromium.org>

BUG=none
TEST=none

Change-Id: I211d23d61db37d7ed40621276f456e6935462c3d

chip/lm4/openocd/lm4x.cfg

@@ -0,0 +1,31 @@
+# Script for TI/Luminary Stellaris LM4F232H (LM4F232H5BB)
+
+if { [info exists CHIPNAME] } {
+   set  _CHIPNAME $CHIPNAME
+} else {
+   set  _CHIPNAME lm4f232h
+}
+
+if { [info exists CPUTAPID ] } {
+   set _CPUTAPID $CPUTAPID
+} else {
+   set _CPUTAPID 0x4ba00477
+}
+
+#jtag scan chain
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 1 -irmask 0xf -expected-id $_CPUTAPID
+
+# the luminary variant causes a software reset rather than asserting SRST
+# this stops the debug registers from being cleared
+# this will be fixed in later revisions of silicon
+set _TARGETNAME $_CHIPNAME.cpu
+# TODO(rspangler): variant lm4x?
+target create $_TARGETNAME cortex_m3 -chain-position $_CHIPNAME.cpu -variant lm3s
+
+# 8k working area at base of ram, not backed up
+#$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size 0x2000
+# 12k working area at base of ram, not backed up
+$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size 0x3000
+
+#flash configuration
+flash bank stellaris 0 0 0 0 $_TARGETNAME

chip/lm4/openocd/openocd.cfg

@@ -0,0 +1,7 @@
+telnet_port 4444
+gdb_port 3333
+gdb_memory_map enable
+gdb_flash_program enable
+
+source [find interface/luminary-icdi.cfg]
+source [find lm4x.cfg]