2 if { [info exists CHIPNAME] } {
3 set _CHIPNAME $CHIPNAME
8 # This chip contains an IcePick-D JTAG router. The IcePick-C configuration is almost
9 # compatible, but it doesn't work. For now, we will just embed the IcePick-D
11 proc icepick_d_tapenable {jrc port} {
13 irscan $jrc 7 -endstate IRPAUSE
14 drscan $jrc 8 0x89 -endstate DRPAUSE
17 irscan $jrc 2 -endstate IRPAUSE
18 drscan $jrc 32 [expr 0xa0002108 + ($port << 24)] -endstate DRPAUSE
21 irscan $jrc 2 -endstate IRPAUSE
22 drscan $jrc 32 0xe0002008 -endstate DRPAUSE
24 irscan $jrc 0x3F -endstate RUN/IDLE
31 if { [info exists M3_DAP_TAPID] } {
32 set _M3_DAP_TAPID $M3_DAP_TAPID
34 set _M3_DAP_TAPID 0x4b6b902f
36 jtag newtap $_CHIPNAME m3_dap -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_M3_DAP_TAPID -disable
37 jtag configure $_CHIPNAME.m3_dap -event tap-enable "icepick_d_tapenable $_CHIPNAME.jrc 11"
42 if { [info exists DAP_TAPID ] } {
43 set _DAP_TAPID $DAP_TAPID
45 set _DAP_TAPID 0x4b6b902f
47 jtag newtap $_CHIPNAME dap -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_DAP_TAPID -disable
48 jtag configure $_CHIPNAME.dap -event tap-enable "icepick_d_tapenable $_CHIPNAME.jrc 12"
51 # ICEpick-D (JTAG route controller)
53 if { [info exists JRC_TAPID ] } {
54 set _JRC_TAPID $JRC_TAPID
56 set _JRC_TAPID 0x0b94402f
58 jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f -expected-id $_JRC_TAPID
59 jtag configure $_CHIPNAME.jrc -event setup "jtag tapenable $_CHIPNAME.dap"
60 # some TCK tycles are required to activate the DEBUG power domain
61 jtag configure $_CHIPNAME.jrc -event post-reset "runtest 100"
66 set _TARGETNAME $_CHIPNAME.cpu
67 target create $_TARGETNAME cortex_a8 -chain-position $_CHIPNAME.dap -dbgbase 0x80001000
69 # SRAM: 64K at 0x4030.0000; use the first 16K
70 $_TARGETNAME configure -work-area-phys 0x40300000 -work-area-size 0x4000
72 $_TARGETNAME configure -event gdb-attach {