X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=tcl%2Ftarget%2Fti_dm365.cfg;h=f71a77aa8b3e21b1a119452875d5cb4e49f0655a;hb=2b17a128841c9431f17aaad844f416eccd24f63f;hp=d357c6e1579cdece5b74b4c20d7fd1e0a52fb117;hpb=974d5f8391f246815fe96f3ca3e4aad1dc6f564e;p=fw%2Fopenocd

diff --git a/tcl/target/ti_dm365.cfg b/tcl/target/ti_dm365.cfg
index d357c6e15..f71a77aa8 100644
--- a/tcl/target/ti_dm365.cfg
+++ b/tcl/target/ti_dm365.cfg
@@ -1,53 +1,52 @@
 #
-# Texas Instruments DaVinci family:  TMS320DM365
+# Texas Instruments DaVinci family: TMS320DM365
 #
 if { [info exists CHIPNAME] } {
-   set  _CHIPNAME $CHIPNAME
+   set _CHIPNAME $CHIPNAME
 } else {
-   set  _CHIPNAME dm365
+   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 ] } {
+if { [info exists ETB_TAPID] } {
    set _ETB_TAPID $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"
 
 # Subsidiary TAP: ARM926ejs with scan chains for ARM Debug, EmbeddedICE-RT, ETM.
-if { [info exists CPU_TAPID ] } {
+if { [info exists CPU_TAPID] } {
    set _CPU_TAPID $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"
 
 # Primary TAP: ICEpick (JTAG route controller) and boundary scan
-if { [info exists JRC_TAPID ] } {
+if { [info exists JRC_TAPID] } {
    set _JRC_TAPID $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"
 
 ################
 
@@ -74,7 +73,7 @@ dict set dm365 ddr		0x80000000
 source [find target/davinci.cfg]
 
 ################
-# GDB target:  the ARM, using SRAM1 for scratch.  SRAM0 (also 16K)
+# GDB target: the ARM, using SRAM1 for scratch.  SRAM0 (also 16K)
 # and the ETB memory (4K) are other options, while trace is unused.
 set _TARGETNAME $_CHIPNAME.arm
 
@@ -83,12 +82,17 @@ target create $_TARGETNAME arm926ejs -chain-position $_TARGETNAME
 # NOTE that work-area-virt presumes a Linux 2.6.30-rc2+ kernel,
 # and that the work area is used only with a kernel mmu context ...
 $_TARGETNAME configure \
-	-work-area-virt [expr 0xfffe0000 + 0x4000] \
+	-work-area-virt [expr {0xfffe0000 + 0x4000}] \
 	-work-area-phys [dict get $dm365 sram1] \
 	-work-area-size 0x4000 \
 	-work-area-backup 0
 
-arm7_9 dbgrq enable
+# 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.
+adapter speed 1500
+$_TARGETNAME configure -event "reset-start" { adapter speed 1500 }
+
 arm7_9 fast_memory_access enable
 arm7_9 dcc_downloads enable