3 if { [info exists CHIPNAME] } {
4 set _CHIPNAME $CHIPNAME
9 # CoreSight Debug Access Port
10 if { [info exists DAP_TAPID] } {
11 set _DAP_TAPID $DAP_TAPID
13 set _DAP_TAPID 0x1ba00477
16 jtag newtap $_CHIPNAME DAP -irlen 4 -ircapture 0x1 -irmask 0xf \
17 -expected-id $_DAP_TAPID
20 jtag newtap $_CHIPNAME SDMA -irlen 4 -ircapture 0x0 -irmask 0xf
23 if { [info exists SJC_TAPID] } {
24 set _SJC_TAPID SJC_TAPID
26 set _SJC_TAPID 0x0190c01d
29 jtag newtap $_CHIPNAME SJC -irlen 5 -ircapture 0x1 -irmask 0x1f \
30 -expected-id $_SJC_TAPID -ignore-version
32 # GDB target: Cortex-A8, using DAP
33 set _TARGETNAME $_CHIPNAME.cpu
34 target create $_TARGETNAME cortex_a8 -chain-position $_CHIPNAME.DAP
36 # some TCK tycles are required to activate the DEBUG power domain
37 jtag configure $_CHIPNAME.SJC -event post-reset "runtest 100"
39 # have the DAP "always" be active
40 jtag configure $_CHIPNAME.SJC -event setup "jtag tapenable $_CHIPNAME.DAP"
42 proc imx51_dbginit {target} {
43 # General Cortex A8 debug initialisation
47 # Slow speed to be sure it will work
49 $_TARGETNAME configure -event "reset-start" { jtag_rclk 1000 }
51 $_TARGETNAME configure -event reset-assert-post "imx51_dbginit $_TARGETNAME"