# 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 } {
# 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.
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} {