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Am335x.cfg - Revision history
2013-05-24T20:13:49Z
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Wmat: target config
2012-05-08T18:19:10Z
<p>target config</p>
<p><b>New page</b></p><div><syntaxhighlight code="tcl"><br />
if { [info exists CHIPNAME] } {<br />
set _CHIPNAME $CHIPNAME<br />
} else {<br />
set _CHIPNAME am335x<br />
}<br />
<br />
# This chip contains an IcePick-D JTAG router. The IcePick-C configuration is almost<br />
# compatible, but it doesn't work. For now, we will just embed the IcePick-D<br />
# routines here.<br />
proc icepick_d_tapenable {jrc port} {<br />
# select router<br />
irscan $jrc 7 -endstate IRPAUSE<br />
drscan $jrc 8 0x89 -endstate DRPAUSE<br />
<br />
# set ip control<br />
irscan $jrc 2 -endstate IRPAUSE<br />
drscan $jrc 32 [expr 0xa0002108 + ($port << 24)] -endstate DRPAUSE<br />
<br />
# for icepick_D<br />
irscan $jrc 2 -endstate IRPAUSE<br />
drscan $jrc 32 0xe0002008 -endstate DRPAUSE<br />
<br />
irscan $jrc 0x3F -endstate RUN/IDLE<br />
runtest 10<br />
}<br />
<br />
#<br />
# M3 DAP<br />
#<br />
if { [info exists M3_DAP_TAPID] } {<br />
set _M3_DAP_TAPID $M3_DAP_TAPID<br />
} else {<br />
set _M3_DAP_TAPID 0x4b6b902f<br />
}<br />
jtag newtap $_CHIPNAME m3_dap -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_M3_DAP_TAPID -disable<br />
jtag configure $_CHIPNAME.m3_dap -event tap-enable "icepick_d_tapenable $_CHIPNAME.jrc 11"<br />
<br />
#<br />
# Main DAP<br />
#<br />
if { [info exists DAP_TAPID ] } {<br />
set _DAP_TAPID $DAP_TAPID<br />
} else {<br />
set _DAP_TAPID 0x4b6b902f<br />
}<br />
jtag newtap $_CHIPNAME dap -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_DAP_TAPID -disable<br />
jtag configure $_CHIPNAME.dap -event tap-enable "icepick_d_tapenable $_CHIPNAME.jrc 12"<br />
<br />
#<br />
# ICEpick-D (JTAG route controller)<br />
#<br />
if { [info exists JRC_TAPID ] } {<br />
set _JRC_TAPID $JRC_TAPID<br />
} else {<br />
set _JRC_TAPID 0x0b94402f<br />
}<br />
jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f -expected-id $_JRC_TAPID<br />
jtag configure $_CHIPNAME.jrc -event setup "jtag tapenable $_CHIPNAME.dap"<br />
# some TCK tycles are required to activate the DEBUG power domain<br />
jtag configure $_CHIPNAME.jrc -event post-reset "runtest 100"<br />
<br />
#<br />
# Cortex A8 target<br />
#<br />
set _TARGETNAME $_CHIPNAME.cpu<br />
target create $_TARGETNAME cortex_a8 -chain-position $_CHIPNAME.dap -dbgbase 0x80001000<br />
<br />
# SRAM: 64K at 0x4030.0000; use the first 16K<br />
$_TARGETNAME configure -work-area-phys 0x40300000 -work-area-size 0x4000<br />
<br />
$_TARGETNAME configure -event gdb-attach {<br />
cortex_a8 dbginit<br />
halt<br />
}<br />
</syntaxhighlight><br />
<br />
[[Category:OpenOCD]]<br />
[[Category:Debugging]]</div>
Wmat