X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=tcl%2Ftarget%2Fti_dm365.cfg;h=e2d29bd5aa463977a7516da4c2b0bc4bb3b934a8;hb=4af724df238eb30569c2845b6160ef4e7f894ad1;hp=4f22ea27dd05b05d672dd7433872e6c15b43cd7e;hpb=42115c0997671214ad2d45aebe59cffea5415b9e;p=openocd.git

diff --git a/tcl/target/ti_dm365.cfg b/tcl/target/ti_dm365.cfg
index 4f22ea27dd..e2d29bd5aa 100644
--- a/tcl/target/ti_dm365.cfg
+++ b/tcl/target/ti_dm365.cfg
@@ -7,16 +7,15 @@ if { [info exists CHIPNAME] } {
    set  _CHIPNAME dm365
 }
 
-#
-# 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.
-#
-# 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).
-#
+# TI boards default to EMU0/EMU1 *high* -- ARM and ETB are *disabled*
+# after JTAG reset until ICEpick is used to route them in.
+set EMU01 "-disable"
+
+# With EMU0/EMU1 jumpered *low* ARM and ETB are *enabled* without
+# needing any ICEpick interaction.
+#set EMU01 "-enable"
+
 source [find target/icepick.cfg]
-set EMU01 "-enable"
-#set EMU01 "-disable"
 
 # Subsidiary TAP: ARM ETB11, with scan chain for 4K of ETM trace buffer
 if { [info exists ETB_TAPID ] } {
@@ -24,8 +23,7 @@ if { [info exists ETB_TAPID ] } {
 } else {
    set _ETB_TAPID 0x2b900f0f
 }
-jtag newtap $_CHIPNAME etb -irlen 4 -ircapture 0x1 -irmask 0xf \
-	-expected-id $_ETB_TAPID $EMU01
+jtag newtap $_CHIPNAME etb -irlen 4 -irmask 0xf -expected-id $_ETB_TAPID $EMU01
 jtag configure $_CHIPNAME.etb -event tap-enable \
 	"icepick_c_tapenable $_CHIPNAME.jrc 1"
 
@@ -35,8 +33,7 @@ if { [info exists CPU_TAPID ] } {
 } else {
    set _CPU_TAPID 0x0792602f
 }
-jtag newtap $_CHIPNAME arm -irlen 4 -ircapture 0x1 -irmask 0xf \
-	-expected-id $_CPU_TAPID $EMU01
+jtag newtap $_CHIPNAME arm -irlen 4 -irmask 0xf -expected-id $_CPU_TAPID $EMU01
 jtag configure $_CHIPNAME.arm -event tap-enable \
 	"icepick_c_tapenable $_CHIPNAME.jrc 0"
 
@@ -46,8 +43,10 @@ if { [info exists JRC_TAPID ] } {
 } else {
    set _JRC_TAPID 0x0b83e02f
 }
-jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f \
-	-expected-id $_JRC_TAPID
+jtag newtap $_CHIPNAME jrc -irlen 6 -irmask 0x3f -expected-id $_JRC_TAPID
+
+jtag configure $_CHIPNAME.jrc -event setup \
+	"jtag tapenable $_CHIPNAME.etb; jtag tapenable $_CHIPNAME.arm"
 
 ################
 
@@ -88,6 +87,12 @@ $_TARGETNAME configure \
 	-work-area-size 0x4000 \
 	-work-area-backup 0
 
+# be absolutely certain the JTAG clock will work with the worst-case
+# CLKIN = 19.2 MHz (best case: 36 MHz) even when no bootloader turns
+# on the PLL and starts using it.  OK to speed up after clock setup.
+jtag_rclk 1500
+$_TARGETNAME configure -event "reset-start" { jtag_rclk 1500 }
+
 arm7_9 fast_memory_access enable
 arm7_9 dcc_downloads enable