blob: 7d718c26dc2ef22d1278904f4c6e102bf14e598f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
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"
|
