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- # SPDX-License-Identifier: GPL-2.0-or-later
- if { [info exists CPUTAPID] } {
- set _CPUTAPID $CPUTAPID
- } else {
- set _CPUTAPID 0x38289013
- }
- jtag newtap quark_d20xx quark -irlen 8 -irmask 0xff -expected-id $_CPUTAPID -disable
- jtag newtap quark_d20xx cltap -irlen 8 -irmask 0xff -expected-id 0x0e786013 -enable
- proc quark_d20xx_tapenable {} {
- echo "enabling quark core tap"
- irscan quark_d20xx.cltap 0x11
- drscan quark_d20xx.cltap 12 1
- runtest 10
- }
- proc quark_d20xx_tapdisable {} {
- echo "disabling quark core tap"
- irscan quark_d20xx.cltap 0x11
- drscan quark_d20xx.cltap 12 0
- runtest 10
- }
- proc quark_d20xx_setup {} {
- jtag tapenable quark_d20xx.quark
- }
- jtag configure quark_d20xx.quark -event tap-enable \
- "quark_d20xx_tapenable"
- jtag configure quark_d20xx.quark -event tap-disable \
- "quark_d20xx_tapdisable"
- target create quark_d20xx.quark quark_d20xx -endian little -chain-position quark_d20xx.quark
- quark_d20xx.quark configure -event reset-start {
- # need to halt the target to write to memory
- if {[quark_d20xx.quark curstate] ne "halted"} { halt }
- # set resetbreak via the core tap
- irscan quark_d20xx.quark 0x35 ; drscan quark_d20xx.quark 1 0x1
- # trigger a warm reset
- mww 0xb0800570 0x2
- # clear resetbreak
- irscan quark_d20xx.quark 0x35 ; drscan quark_d20xx.quark 1 0x0
- }
- jtag configure quark_d20xx.quark -event setup \
- "quark_d20xx_setup"
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