1 # SPDX-License-Identifier: GPL-2.0-or-later
5 if { [info exists CHIPNAME] } {
6 set _CHIPNAME $CHIPNAME
12 # Although the OMAP4430 supposedly has an ICEpick-D, only the
13 # ICEpick-C router commands seem to work.
14 # See http://processors.wiki.ti.com/index.php/ICEPICK
15 source [find target/icepick.cfg]
21 if { [info exists DAP_TAPID] } {
22 set _DAP_TAPID $DAP_TAPID
24 set _DAP_TAPID 0x3BA00477
27 jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf \
28 -expected-id $_DAP_TAPID -disable
29 jtag configure $_CHIPNAME.cpu -event tap-enable \
30 "icepick_c_tapenable $_CHIPNAME.jrc 9"
34 # M3 DAPs, one per core
36 if { [info exists M3_DAP_TAPID] } {
37 set _M3_DAP_TAPID $M3_DAP_TAPID
39 set _M3_DAP_TAPID 0x4BA00477
42 jtag newtap $_CHIPNAME m31 -irlen 4 -ircapture 0x1 -irmask 0xf \
43 -expected-id $_M3_DAP_TAPID -disable
44 jtag configure $_CHIPNAME.m31 -event tap-enable \
45 "icepick_c_tapenable $_CHIPNAME.jrc 5"
47 jtag newtap $_CHIPNAME m30 -irlen 4 -ircapture 0x1 -irmask 0xf \
48 -expected-id $_M3_DAP_TAPID -disable
49 jtag configure $_CHIPNAME.m30 -event tap-enable \
50 "icepick_c_tapenable $_CHIPNAME.jrc 4"
54 # ICEpick-D JRC (JTAG route controller)
56 if { [info exists JRC_TAPID] } {
57 set _JRC_TAPID $JRC_TAPID
59 set _JRC_TAPID 0x3b95c02f
60 set _JRC_TAPID2 0x1b85202f
63 # PandaBoard REV EA1 (PEAP platforms)
64 if { [info exists JRC_TAPID2] } {
65 set _JRC_TAPID2 $JRC_TAPID2
67 set _JRC_TAPID2 0x1b85202f
72 jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f \
73 -expected-id $_JRC_TAPID -expected-id $_JRC_TAPID2
75 # Required by ICEpick to power-up the debug domain
76 jtag configure $_CHIPNAME.jrc -event post-reset "runtest 200"
80 # GDB target: Cortex-A9, using DAP
82 # The debugger can connect to either core of the A9, but currently
83 # not both simultaneously. Change -coreid to 1 to connect to the
86 set _TARGETNAME $_CHIPNAME.cpu
88 # APB DBGBASE reads 0x80040000, but this points to an empty ROM table.
89 # 0x80000000 is cpu0 coresight region
92 # CORTEX_A8_PADDRDBG_CPU_SHIFT 13
93 # 0x80000000 | (coreid << CORTEX_A8_PADDRDBG_CPU_SHIFT)
96 set _dbgbase [expr {0x80000000 | ($_coreid << 13)}]
97 echo "Using dbgbase = [format 0x%x $_dbgbase]"
99 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
100 target create $_TARGETNAME cortex_a -dap $_CHIPNAME.dap \
101 -coreid 0 -dbgbase $_dbgbase
103 # SRAM: 56KiB at 0x4030.0000
104 $_TARGETNAME configure -work-area-phys 0x40300000 -work-area-size 0x1000
108 # M3 targets, separate TAP/DAP for each core
110 dap create $_CHIPNAME.m30_dap -chain-position $_CHIPNAME.m30
111 dap create $_CHIPNAME.m31_dap -chain-position $_CHIPNAME.m31
112 target create $_CHIPNAME.m30 cortex_m -dap $_CHIPNAME.m30_dap
113 target create $_CHIPNAME.m31 cortex_m -dap $_CHIPNAME.m31_dap
116 # Once the JRC is up, enable our TAPs
117 jtag configure $_CHIPNAME.jrc -event setup "
118 jtag tapenable $_CHIPNAME.cpu
119 jtag tapenable $_CHIPNAME.m30
120 jtag tapenable $_CHIPNAME.m31
123 # Assume SRST is unavailable (e.g. TI-14 JTAG), so we must assert reset
124 # ourselves using PRM_RSTCTRL. 1 is a warm reset, 2 a cold reset.
125 set PRM_RSTCTRL 0x4A307B00
126 $_TARGETNAME configure -event reset-assert "$_TARGETNAME mww phys $PRM_RSTCTRL 0x1"
127 $_CHIPNAME.m30 configure -event reset-assert { }
128 $_CHIPNAME.m31 configure -event reset-assert { }
130 # Soft breakpoints don't currently work due to broken cache handling
131 gdb_breakpoint_override hard