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- # Texas Instruments OMAP 2420
- # http://www.ti.com/omap
- # as seen in Nokia N8x0 tablets
-
- if { [info exists CHIPNAME] } {
- set _CHIPNAME $CHIPNAME
- } else {
- set _CHIPNAME omap2420
- }
-
- # NOTE: likes slowish clock on reset (1.5 MBit/s or less) or use RCLK
- reset_config srst_nogate
-
- # Subsidiary TAP: ARM7TDMIr4 plus imaging ... must add via ICEpick (addr 6).
- jtag newtap $_CHIPNAME iva -irlen 4 -disable
-
- # Subsidiary TAP: C55x DSP ... must add via ICEpick (addr 2).
- jtag newtap $_CHIPNAME dsp -irlen 38 -disable
-
- # Subsidiary TAP: ARM ETB11, with scan chain for 4K of ETM trace buffer
- if { [info exists ETB_TAPID] } {
- set _ETB_TAPID $ETB_TAPID
- } else {
- set _ETB_TAPID 0x2b900f0f
- }
- jtag newtap $_CHIPNAME etb -irlen 4 -expected-id $_ETB_TAPID
-
- # Subsidiary TAP: ARM1136jf-s with scan chains for ARM Debug, EmbeddedICE-RT, ETM.
- if { [info exists CPU_TAPID] } {
- set _CPU_TAPID $CPU_TAPID
- } else {
- set _CPU_TAPID 0x07b3602f
- }
- jtag newtap $_CHIPNAME arm -irlen 5 -expected-id $_CPU_TAPID
-
- # Primary TAP: ICEpick-B (JTAG route controller) and boundary scan
- if { [info exists JRC_TAPID] } {
- set _JRC_TAPID $JRC_TAPID
- } else {
- set _JRC_TAPID 0x01ce4801
- }
- jtag newtap $_CHIPNAME jrc -irlen 2 -expected-id $_JRC_TAPID
-
- # GDB target: the ARM.
- set _TARGETNAME $_CHIPNAME.arm
- target create $_TARGETNAME arm11 -chain-position $_TARGETNAME
-
- # scratch: framebuffer, may be initially unavailable in some chips
- $_TARGETNAME configure -work-area-phys 0x40210000
- $_TARGETNAME configure -work-area-size 0x00081000
- $_TARGETNAME configure -work-area-backup 0
-
- # trace setup ... NOTE, "normal full" mode fudges the real ETMv3.1 mode
- etm config $_TARGETNAME 16 normal full etb
- etb config $_TARGETNAME $_CHIPNAME.etb
-
- # RM_RSTCTRL_WKUP.RST.GS - Trigger a global software reset, and
- # give it a chance to finish before we talk to the chip again.
- set RM_RSTCTRL_WKUP 0x48008450
- $_TARGETNAME configure -event reset-assert \
- "halt; $_TARGETNAME mww $RM_RSTCTRL_WKUP 2; sleep 200"
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