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tcl: target: icepick: add icepick_d_tapenable procedure 

instead of replicating icepick_d_tapenable in many of TI's newer
platforms, we can move to icepick.cfg and just call it from board TCL
configuration file.  This is similar to the C but has a few changes we
need to make.

Change-Id: I0ab48005ccd66cd5b67b919fb5e3b462288f211d
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tom Rini <trini@ti.com>
Reviewed-on: http://openocd.zylin.com/2030
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
__archive__
Felipe Balbi 2014-02-28 18:22:35 -06:00 committed by Spencer Oliver
parent 8d89373596
commit 3201a104fe
2 changed files with 25 additions and 22 deletions
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21
tcl/target/am335x.cfg
View File

@ -1,3 +1,4 @@
source [find target/icepick.cfg]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
@ -5,26 +6,6 @@ if { [info exists CHIPNAME] } {
set _CHIPNAME am335x
}
# This chip contains an IcePick-D JTAG router. The IcePick-C configuration is almost
# compatible, but it doesn't work. For now, we will just embed the IcePick-D
# routines here.
proc icepick_d_tapenable {jrc port} {
# select router
irscan $jrc 7 -endstate IRPAUSE
drscan $jrc 8 0x89 -endstate DRPAUSE
# set ip control
irscan $jrc 2 -endstate IRPAUSE
drscan $jrc 32 [expr 0xa0002108 + ($port << 24)] -endstate DRPAUSE
# for icepick_D
irscan $jrc 2 -endstate IRPAUSE
drscan $jrc 32 0xe0002008 -endstate DRPAUSE
irscan $jrc 0x3F -endstate RUN/IDLE
runtest 10
}
#
# M3 DAP
#

26
tcl/target/icepick.cfg
View File

@ -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 } {
@ -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} {