tcl/target/omap2420.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 # Texas Instruments OMAP 2420
   4 #       http://www.ti.com/omap
   5 # as seen in Nokia N8x0 tablets
   6
   7 if { [info exists CHIPNAME] } {
   8    set _CHIPNAME $CHIPNAME
   9 } else {
  10    set _CHIPNAME omap2420
  11 }
  12
  13 # NOTE: likes slowish clock on reset (1.5 MBit/s or less) or use RCLK
  14 reset_config srst_nogate
  15
  16 # Subsidiary TAP: ARM7TDMIr4 plus imaging ... must add via ICEpick (addr 6).
  17 jtag newtap $_CHIPNAME iva -irlen 4 -disable
  18
  19 # Subsidiary TAP: C55x DSP ... must add via ICEpick (addr 2).
  20 jtag newtap $_CHIPNAME dsp -irlen 38 -disable
  21
  22 # Subsidiary TAP: ARM ETB11, with scan chain for 4K of ETM trace buffer
  23 if { [info exists ETB_TAPID] } {
  24    set _ETB_TAPID $ETB_TAPID
  25 } else {
  26    set _ETB_TAPID 0x2b900f0f
  27 }
  28 jtag newtap $_CHIPNAME etb -irlen 4 -expected-id $_ETB_TAPID
  29
  30 # Subsidiary TAP: ARM1136jf-s with scan chains for ARM Debug, EmbeddedICE-RT, ETM.
  31 if { [info exists CPU_TAPID] } {
  32    set _CPU_TAPID $CPU_TAPID
  33 } else {
  34    set _CPU_TAPID 0x07b3602f
  35 }
  36 jtag newtap $_CHIPNAME arm -irlen 5 -expected-id $_CPU_TAPID
  37
  38 # Primary TAP: ICEpick-B (JTAG route controller) and boundary scan
  39 if { [info exists JRC_TAPID] } {
  40    set _JRC_TAPID $JRC_TAPID
  41 } else {
  42    set _JRC_TAPID 0x01ce4801
  43 }
  44 jtag newtap $_CHIPNAME jrc -irlen 2 -expected-id $_JRC_TAPID
  45
  46 # GDB target: the ARM.
  47 set _TARGETNAME $_CHIPNAME.arm
  48 target create $_TARGETNAME arm11 -chain-position $_TARGETNAME
  49
  50 # scratch: framebuffer, may be initially unavailable in some chips
  51 $_TARGETNAME configure -work-area-phys 0x40210000
  52 $_TARGETNAME configure -work-area-size 0x00081000
  53 $_TARGETNAME configure -work-area-backup 0
  54
  55 # trace setup ... NOTE, "normal full" mode fudges the real ETMv3.1 mode
  56 etm config $_TARGETNAME 16 normal full etb
  57 etb config $_TARGETNAME $_CHIPNAME.etb
  58
  59 # RM_RSTCTRL_WKUP.RST.GS - Trigger a global software reset, and
  60 # give it a chance to finish before we talk to the chip again.
  61 set RM_RSTCTRL_WKUP 0x48008450
  62 $_TARGETNAME configure -event reset-assert \
  63         "halt; $_TARGETNAME mww $RM_RSTCTRL_WKUP 2; sleep 200"