2019-03-09 16:51:33 +00:00
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# Script from
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# https://www.suse.com/c/debugging-raspberry-pi-3-with-jtag/
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2019-03-10 12:40:28 +00:00
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# with minor adaptions.
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2019-03-09 16:51:33 +00:00
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transport select jtag
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# we need to enable srst even though we don't connect it
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reset_config trst_and_srst
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adapter_khz 1000
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jtag_ntrst_delay 500
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if { [info exists CHIPNAME] } {
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set _CHIPNAME $CHIPNAME
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} else {
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set _CHIPNAME rpi3
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}
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#
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# Main DAP
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#
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if { [info exists DAP_TAPID] } {
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set _DAP_TAPID $DAP_TAPID
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} else {
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set _DAP_TAPID 0x4ba00477
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}
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jtag newtap $_CHIPNAME tap -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_DAP_TAPID -enable
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dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.tap
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set _TARGETNAME $_CHIPNAME.core
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set _CTINAME $_CHIPNAME.cti
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set DBGBASE {0x80010000 0x80012000 0x80014000 0x80016000}
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set CTIBASE {0x80018000 0x80019000 0x8001a000 0x8001b000}
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set _cores 4
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for { set _core 0 } { $_core < $_cores } { incr _core } {
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cti create $_CTINAME.$_core -dap $_CHIPNAME.dap -ap-num 0 \
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-ctibase [lindex $CTIBASE $_core]
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target create $_TARGETNAME$_core aarch64 \
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-dap $_CHIPNAME.dap -coreid $_core \
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-dbgbase [lindex $DBGBASE $_core] -cti $_CTINAME.$_core
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$_TARGETNAME$_core configure -event reset-assert-post "aarch64 dbginit"
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$_TARGETNAME$_core configure -event gdb-attach { halt }
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}
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