# 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 } {
irscan $jrc [CONST IR_ROUTER] -endstate IRPAUSE
# ROUTER instructions are 32 bits wide
- set old_dr_value [drscan $jrc 32 $new_dr_value -endstate DRPAUSE]
+ set old_dr_value 0x[drscan $jrc 32 $new_dr_value -endstate DRPAUSE]
+# echo "\tOld router value:\t0x[format %x $old_dr_value]"
}
# Configure the icepick control register
# 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.
# first enable power and clock for TAP
- icepick_c_router $jrc 1 0x2 $port 0x100048
+ icepick_c_router $jrc 1 0x2 $port 0x110048
# TRM states that the register should be read back here, skipped for now
# enable debug "default" mode
- icepick_c_router $jrc 1 0x2 $port 0x102048
+ icepick_c_router $jrc 1 0x2 $port 0x112048
# TRM states that debug enable and debug mode should be read back and
# confirmed - skipped for now
# Finally select the tap
- icepick_c_router $jrc 1 0x2 $port 0x102148
+ icepick_c_router $jrc 1 0x2 $port 0x112148
# Enter the bypass state
irscan $jrc [CONST IR_BYPASS] -endstate RUN/IDLE
runtest 10
}
+# jrc == TAP name for the ICEpick
+# coreid== core id number 0..15 (not same as port number!)
+proc icepick_d_set_core_control {jrc coreid value } {
+ icepick_c_router $jrc 1 0x6 $coreid $value
+}
+
+# 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 coreid { value 0x2008 } } {
+ # First CONNECT to the ICEPick
+ icepick_c_connect $jrc
+ icepick_c_setup $jrc
+
+ # Select the port
+ icepick_c_router $jrc 1 0x2 $port 0x2108
+
+ # Set icepick core control for $coreid
+ icepick_d_set_core_control $jrc $coreid $value
+
+ # 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} {