tcl: target: icepick: add icepick_d_tapenable procedure

[openocd] / tcl / target / icepick.cfg

diff --git a/tcl/target/icepick.cfg b/tcl/target/icepick.cfg
index ff73138ccaa2ceec9cac817576f23fbfdc90be06..13a6a5106b8a68930ef1a7c4dad73670c912e3b8 100644 (file)
--- a/tcl/target/icepick.cfg
+++ b/tcl/target/icepick.cfg
@@ -3,8 +3,9 @@
 # Copyright (C)   2009        by David Brownell
 #
 
-# Utilities for TI ICEpick-C ... used in DaVinci, OMAP3, and more.
-# Details about the ICEPickC are available in the AM/DM37x document SPRUGN4M
+# Utilities for TI ICEpick-C/D used in most TI SoCs
+# Details about the ICEPick are available in the the TRM for each SoC
+# and http://processors.wiki.ti.com/index.php/ICEPICK
 
 # create "constants"
 proc CONST { key } {
@@ -83,7 +84,7 @@ proc icepick_c_tapenable {jrc port} {
 #      echo "Configuring the ICEpick"
        icepick_c_setup $jrc
 
-       # NOTE:  it's important not to enter RUN/IDLE state until
+       # NOTE: it's important not to enter RUN/IDLE state until
        # done sending these instructions and data to the ICEpick.
        # And never to enter RESET, which will disable the TAPs.
 
@@ -106,6 +107,27 @@ proc icepick_c_tapenable {jrc port} {
        runtest 10
 }
 
+# jrc  == TAP name for the ICEpick
+# port == a port number, 0..15
+# Follow the sequence described in
+# http://processors.wiki.ti.com/images/f/f6/Router_Scan_Sequence-ICEpick-D.pdf
+proc icepick_d_tapenable {jrc port} {
+       # First CONNECT to the ICEPick
+       icepick_c_connect $jrc
+
+       # Select the port
+       irscan $jrc [CONST IR_ROUTER] -endstate IRPAUSE
+       drscan $jrc 32 [expr 0xa0002108 + ($port << 24)] -endstate DRPAUSE
+
+       # Set 4 bit core ID to the Cortex-A
+       irscan $jrc [CONST IR_ROUTER] -endstate IRPAUSE
+       drscan $jrc 32 0xe0002008 -endstate DRPAUSE
+
+       # Enter the bypass state
+       irscan $jrc [CONST IF_BYPASS] -endstate RUN/IDLE
+       runtest 10
+}
+
 # This function uses the ICEPick to send a warm system reset
 proc icepick_c_wreset {jrc} {