# SPDX-License-Identifier: GPL-2.0-or-later # # The JTAG connection is disabled at reset, and during the ROM Code execution. # It is re-enabled when the ROM code jumps in the boot file copied from an # external Flash memory into the internalSRAM, or when the ROM code launches # the SAM-BA monitor, when no boot file has been found in any external Flash # memory. # For more JTAG related information see, : # https://ww1.microchip.com/downloads/en/DeviceDoc/SAMA5D2-Series-Data-sheet-ds60001476G.pdf # # If JTAGSEL pin: # - if enabled, boundary Scan mode is activated. JTAG ID Code value is 0x05B3F03F. # - if disabled, ICE mode is activated. Debug Port JTAG IDCODE value is 0x5BA00477 # if { [info exists CHIPNAME] } { set _CHIPNAME $CHIPNAME } else { set _CHIPNAME at91sama5d2 } jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x01 -irmask 0x0f \ -expected-id 0x5ba00477 # Cortex-A5 target set _TARGETNAME $_CHIPNAME.cpu_a5 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu target create $_TARGETNAME.0 cortex_a -dap $_CHIPNAME.dap