tcl/target/xtensa.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2 # Target Support for Xtensa Processors
   3 #
   4
   5 set xtensa_ids { 0x120034e5 0x120134e5
   6                                  0x209034e5 0x209134e5 0x209234e5 0x209334e5 0x209434e5 0x209534e5 0x209634e5 0x209734e5
   7                                  0x20a034e5 0x20a134e5 0x20a234e5 0x20a334e5 0x20a434e5 0x20a534e5 0x20a634e5 0x20a734e5 0x20a834e5
   8                                  0x20b034e5 0x20b33ac5 0x20b33ac7 }
   9 set expected_xtensa_ids {}
  10 foreach i $xtensa_ids {
  11         lappend expected_xtensa_ids -expected-id $i
  12 }
  13
  14 if { [info exists CHIPNAME] } {
  15         set _CHIPNAME $CHIPNAME
  16 } else {
  17         set _CHIPNAME xtensa
  18 }
  19
  20 if { [info exists CPUTAPID] } {
  21         set _CPUTAPARGLIST "-expected-id $CPUTAPID"
  22 } else {
  23         set _CPUTAPARGLIST [join $expected_xtensa_ids]
  24 }
  25
  26 if { [info exists XTENSA_NUM_CORES] } {
  27         set _XTENSA_NUM_CORES $XTENSA_NUM_CORES
  28 } else {
  29         set _XTENSA_NUM_CORES 1
  30 }
  31
  32 set _TARGETNAME $_CHIPNAME
  33 set _CPU0NAME cpu
  34 set _TAPNAME $_CHIPNAME.$_CPU0NAME
  35
  36 if { [info exists XTENSA_DAP] } {
  37         source [find target/swj-dp.tcl]
  38         # SWD mode ignores the -irlen parameter
  39         eval swj_newdap $_CHIPNAME cpu -irlen 4 $_CPUTAPARGLIST
  40         dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
  41
  42         set _TARGETNAME $_CHIPNAME.cpu
  43         if { [info exists XTENSA_DAP_BASE] } {
  44                 # Specify fixed offset for accessing XDM via APB behind a DAP interface
  45                 target create $_TARGETNAME xtensa -dap $_CHIPNAME.dap -dbgbase $XTENSA_DAP_BASE
  46         } else {
  47                 target create $_TARGETNAME xtensa -dap $_CHIPNAME.dap
  48         }
  49 } elseif { $_XTENSA_NUM_CORES > 1 } {
  50         # JTAG direct (without DAP)
  51         for {set i 0} {$i < $_XTENSA_NUM_CORES} {incr i} {
  52                 set _LCPUNAME $_CPU0NAME$i
  53                 set _LTAPNAME $_CHIPNAME.$_LCPUNAME
  54                 eval jtag newtap $_CHIPNAME $_LCPUNAME -irlen 5 $_CPUTAPARGLIST
  55                 target create $_LTAPNAME xtensa -chain-position $_LTAPNAME -coreid $i
  56
  57                 $_LTAPNAME configure -event reset-assert-post { soft_reset_halt }
  58         }
  59 } else {
  60         # JTAG direct (without DAP) - for legacy xtensa-config-XXX.cfg format
  61         eval jtag newtap $_CHIPNAME $_CPU0NAME -irlen 5 $_CPUTAPARGLIST
  62         target create $_TARGETNAME xtensa -chain-position $_TAPNAME
  63 }
  64
  65 if { $_XTENSA_NUM_CORES == 1 } {
  66         # DAP and single-core legacy JTAG
  67         $_TARGETNAME configure -event reset-assert-post { soft_reset_halt }
  68 }
  69
  70 gdb_report_register_access_error enable