tcl/cpu/arc/em.tcl

   1 #  Copyright (C) 2015, 2020 Synopsys, Inc.
   2 #  Anton Kolesov <anton.kolesov@synopsys.com>
   3 #  Didin Evgeniy <didin@synopsys.com>
   4 #
   5 # SPDX-License-Identifier: GPL-2.0-or-later
   6
   7 source [find cpu/arc/v2.tcl]
   8
   9 proc arc_em_examine_target { {target ""} } {
  10         # Will set current target
  11         arc_v2_examine_target $target
  12 }
  13
  14 proc arc_em_init_regs { } {
  15         arc_v2_init_regs
  16
  17         [target current] configure \
  18                 -event examine-end "arc_em_examine_target [target current]"
  19 }
  20
  21 # Scripts in "target" folder should call this function instead of direct
  22 # invocation of arc_common_reset.
  23 proc arc_em_reset { {target ""} } {
  24         arc_v2_reset $target
  25
  26         # Set DEBUG.ED bit to enable clock in actionpoint module.
  27         # This is specific to ARC EM.
  28         set debug [arc jtag get-aux-reg 5]
  29         if { !($debug & (1 << 20)) } {
  30                 arc jtag set-aux-reg 5 [expr $debug | (1 << 20)]
  31         }
  32 }