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-rw-r--r--tcl/target/ti_dm6446.cfg49
1 files changed, 31 insertions, 18 deletions
diff --git a/tcl/target/ti_dm6446.cfg b/tcl/target/ti_dm6446.cfg
index 68a7c207..4ab342a0 100644
--- a/tcl/target/ti_dm6446.cfg
+++ b/tcl/target/ti_dm6446.cfg
@@ -6,19 +6,28 @@ if { [info exists CHIPNAME] } {
} else {
set _CHIPNAME dm6446
}
-if { [info exists ENDIAN] } {
- set _ENDIAN $ENDIAN
-} else {
- set _ENDIAN little
-}
#
# For now, expect EMU0/EMU1 jumpered LOW (not TI's default) so ARM and ETB
# are enabled without making ICEpick route ARM and ETB into the JTAG chain.
+# Override by setting EMU01 to "-disable".
#
# Also note: when running without RTCK before the PLLs are set up, you
# may need to slow the JTAG clock down quite a lot (under 2 MHz).
#
+source [find target/icepick.cfg]
+set EMU01 ""
+#set EMU01 "-disable"
+
+# Subsidiary TAP: unknown ... must enable via ICEpick
+jtag newtap $_CHIPNAME unknown -irlen 8 -ircapture 0xff -irmask 0xff -disable
+jtag configure $_CHIPNAME.unknown -event tap-enable \
+ "icepick_c_tapenable $_CHIPNAME.jrc 3"
+
+# Subsidiary TAP: C64x+ DSP ... must enable via ICEpick
+jtag newtap $_CHIPNAME dsp -irlen 38 -ircapture 0x25 -irmask 0x3f -disable
+jtag configure $_CHIPNAME.dsp -event tap-enable \
+ "icepick_c_tapenable $_CHIPNAME.jrc 2"
# Subsidiary TAP: ARM ETB11, with scan chain for 4K of ETM trace buffer
if { [info exists ETB_TAPID ] } {
@@ -26,7 +35,10 @@ if { [info exists ETB_TAPID ] } {
} else {
set _ETB_TAPID 0x2b900f0f
}
-jtag newtap $_CHIPNAME etb -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_ETB_TAPID
+jtag newtap $_CHIPNAME etb -irlen 4 -ircapture 0x1 -irmask 0xf \
+ -expected-id $_ETB_TAPID $EMU01
+jtag configure $_CHIPNAME.etb -event tap-enable \
+ "icepick_c_tapenable $_CHIPNAME.jrc 1"
# Subsidiary TAP: ARM926ejs with scan chains for ARM Debug, EmbeddedICE-RT, ETM.
if { [info exists CPU_TAPID ] } {
@@ -34,33 +46,34 @@ if { [info exists CPU_TAPID ] } {
} else {
set _CPU_TAPID 0x07926001
}
-jtag newtap $_CHIPNAME arm -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPU_TAPID
-
-# Subsidiary TAP: C64x+ DSP ... NOT CURRENTLY INCLUDED, must add via ICEpick.
-# Documentation for DSP JTAG interfaces evidently needs NDAs.
+jtag newtap $_CHIPNAME arm -irlen 4 -ircapture 0x1 -irmask 0xf \
+ -expected-id $_CPU_TAPID $EMU01
+jtag configure $_CHIPNAME.arm -event tap-enable \
+ "icepick_c_tapenable $_CHIPNAME.jrc 0"
-# Primary TAP: ICEpick (JTAG route controller) and boundary scan
+# Primary TAP: ICEpick-C (JTAG route controller) and boundary scan
if { [info exists JRC_TAPID ] } {
set _JRC_TAPID $JRC_TAPID
} else {
set _JRC_TAPID 0x0b70002f
}
-jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f -expected-id $_JRC_TAPID
+jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f \
+ -expected-id $_JRC_TAPID
# GDB target: the ARM, using SRAM1 for scratch. SRAM0 (also 8K)
# and the ETB memory (4K) are other options, while trace is unused.
+# Little-endian; use the OpenOCD default.
set _TARGETNAME $_CHIPNAME.arm
-target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position $_TARGETNAME
-$_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x0000a000 -work-area-size 0x2000 -work-area-backup 0
+target create $_TARGETNAME arm926ejs -chain-position $_TARGETNAME
+$_TARGETNAME configure -work-area-phys 0x0000a000 -work-area-size 0x2000
arm7_9 dbgrq enable
arm7_9 fast_memory_access enable
arm7_9 dcc_downloads enable
# trace setup
-# FIXME we ought to be able to say "... config $_TARGETNAME ..."
-# (not "config 0") facilitating additional targets (e.g. other chips)
-etm config 0 16 normal full etb
-etb config 0 $_CHIPNAME.etb
+etm config $_TARGETNAME 16 normal full etb
+etb config $_TARGETNAME $_CHIPNAME.etb
+# vim:syntax tcl