1 # SPDX-License-Identifier: GPL-2.0-or-later
3 # SAMA5D2 devices support both JTAG and SWD transports.
5 # The JTAG connection is disabled at reset, and during the ROM Code execution.
6 # It is re-enabled when the ROM code jumps in the boot file copied from an
7 # external Flash memory into the internalSRAM, or when the ROM code launches
8 # the SAM-BA monitor, when no boot file has been found in any external Flash
10 # For more JTAG related information see, :
11 # https://ww1.microchip.com/downloads/en/DeviceDoc/SAMA5D2-Series-Data-sheet-ds60001476G.pdf
14 # - if enabled, boundary Scan mode is activated. JTAG ID Code value is 0x05B3F03F.
15 # - if disabled, ICE mode is activated. Debug Port JTAG IDCODE value is 0x5BA00477
18 source [find target/swj-dp.tcl]
21 if { [info exists CPUTAPID] } {
22 set _CPUTAPID $CPUTAPID
25 set _CPUTAPID 0x5ba00477
27 # SWD IDCODE (single drop, arm)
28 set _CPUTAPID 0x5ba02477
32 if { [info exists CHIPNAME] } {
33 set _CHIPNAME $CHIPNAME
35 set _CHIPNAME at91sama5d2
38 swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
41 set _TARGETNAME $_CHIPNAME.cpu_a5
42 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
44 target create $_TARGETNAME.0 cortex_a -dap $_CHIPNAME.dap