2 # Texas Instruments DaVinci family: OMAPL138
4 if { [info exists CHIPNAME] } {
5 set _CHIPNAME $CHIPNAME
10 source [find target/icepick.cfg]
12 # Subsidiary TAP: ARM ETB11, with scan chain for 4K of ETM trace buffer
13 if { [info exists ETB_TAPID ] } {
14 set _ETB_TAPID $ETB_TAPID
16 set _ETB_TAPID 0x2b900f0f
18 jtag newtap $_CHIPNAME etb -irlen 4 -irmask 0xf -expected-id $_ETB_TAPID -disable
19 jtag configure $_CHIPNAME.etb -event tap-enable \
20 "icepick_c_tapenable $_CHIPNAME.jrc 3"
22 # Subsidiary TAP: ARM926ejs with scan chains for ARM Debug, EmbeddedICE-RT, ETM.
23 if { [info exists CPU_TAPID ] } {
24 set _CPU_TAPID $CPU_TAPID
26 set _CPU_TAPID 0x07926001
28 jtag newtap $_CHIPNAME arm -irlen 4 -irmask 0xf -expected-id $_CPU_TAPID -disable
29 jtag configure $_CHIPNAME.arm -event tap-enable \
30 "icepick_c_tapenable $_CHIPNAME.jrc 2"
32 # Primary TAP: ICEpick-C (JTAG route controller) and boundary scan
33 if { [info exists JRC_TAPID ] } {
34 set _JRC_TAPID $JRC_TAPID
36 set _JRC_TAPID 0x0b7d102f
38 jtag newtap $_CHIPNAME jrc -irlen 6 -irmask 0x3f -expected-id $_JRC_TAPID
40 jtag configure $_CHIPNAME.jrc -event setup \
41 "jtag tapenable $_CHIPNAME.etb; jtag tapenable $_CHIPNAME.arm"
44 # GDB target: the ARM, using SRAM1 for scratch. SRAM0 (also 8K)
45 # and the ETB memory (4K) are other options, while trace is unused.
46 # Little-endian; use the OpenOCD default.
47 set _TARGETNAME $_CHIPNAME.arm
49 target create $_TARGETNAME arm926ejs -chain-position $_TARGETNAME
50 $_TARGETNAME configure -work-area-phys 0x80000000 -work-area-size 0x2000
52 # be absolutely certain the JTAG clock will work with the worst-case
53 # CLKIN = 20 MHz (best case: 30 MHz) even when no bootloader turns
54 # on the PLL and starts using it. OK to speed up after clock setup.
56 $_TARGETNAME configure -event "reset-start" { jtag_rclk 1500 }
58 arm7_9 fast_memory_access enable
59 arm7_9 dcc_downloads enable
62 etm config $_TARGETNAME 16 normal full etb
63 etb config $_TARGETNAME $_CHIPNAME.etb
65 gdb_breakpoint_override hard