tcl/target/atsamv.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 # ATMEL SAMV, SAMS, and SAME chips are Cortex-M7 parts
   4 # The chips are very similar; the SAMV series just has
   5 # more peripherals and seems like the "flagship" of the
   6 # family. This script will work for all of them.
   7
   8 source [find target/swj-dp.tcl]
   9
  10 if { [info exists CHIPNAME] } {
  11    set _CHIPNAME $CHIPNAME
  12 } else {
  13    set _CHIPNAME samv
  14 }
  15
  16 if { [info exists ENDIAN] } {
  17    set _ENDIAN $ENDIAN
  18 } else {
  19    set _ENDIAN little
  20 }
  21
  22 # Work-area is a space in RAM used for flash programming
  23 # By default use 16kB
  24 if { [info exists WORKAREASIZE] } {
  25    set _WORKAREASIZE $WORKAREASIZE
  26 } else {
  27    set _WORKAREASIZE 0x4000
  28 }
  29
  30 if { [info exists CPUTAPID] } {
  31    set _CPUTAPID $CPUTAPID
  32 } else {
  33    set _CPUTAPID 0x0bd11477
  34 }
  35
  36 swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
  37 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
  38
  39 set _TARGETNAME $_CHIPNAME.cpu
  40 target create $_TARGETNAME cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap
  41
  42 $_TARGETNAME configure -work-area-phys 0x20400000 -work-area-size $_WORKAREASIZE -work-area-backup 0
  43
  44 adapter speed 1800
  45
  46 if {![using_hla]} {
  47    # if srst is not fitted use SYSRESETREQ to
  48    # perform a soft reset
  49    cortex_m reset_config sysresetreq
  50
  51    # Set CSW[27], which according to ARM ADI v5 appendix E1.4 maps to AHB signal
  52    # HPROT[3], which according to AMBA AHB/ASB/APB specification chapter 3.7.3
  53    # makes the data access cacheable. This allows reading and writing data in the
  54    # CPU cache from the debugger, which is far more useful than going straight to
  55    # RAM when operating on typical variables, and is generally no worse when
  56    # operating on special memory locations.
  57    $_CHIPNAME.dap apcsw 0x08000000 0x08000000
  58 }
  59
  60 set _FLASHNAME $_CHIPNAME.flash
  61 flash bank $_FLASHNAME atsamv 0x00400000 0 0 0 $_TARGETNAME