tcl/target/lsch3_common.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2 # This contains common configuration for NXP Layerscape chassis generation 3
   3
   4 if { ![info exists _CPUS] } {
   5         error "_CPUS must be set to the number of cores"
   6 }
   7
   8 jtag newtap $_CHIPNAME dap -irlen 4 -expected-id $_DAP_TAPID
   9 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.dap
  10
  11 target create $_CHIPNAME.axi mem_ap -dap $_CHIPNAME.dap -ap-num 1
  12
  13 set _CPU_BASE 0x81000000
  14 set _CPU_STRIDE 0x100000
  15 set _CPU_DBGOFF 0x10000
  16 set _CPU_CTIOFF 0x20000
  17
  18 set _TARGETS {}
  19 for {set i 0} {$i < $_CPUS} {incr i} {
  20         set _BASE [expr {$_CPU_BASE + $_CPU_STRIDE * $i}]
  21         cti create $_CHIPNAME.cti$i -dap $_CHIPNAME.dap -ap-num 0 \
  22                 -baseaddr [expr {$_BASE + $_CPU_CTIOFF}]
  23         target create $_CHIPNAME.cpu$i aarch64 -dap $_CHIPNAME.dap \
  24                 -cti $_CHIPNAME.cti$i -dbgbase [expr {$_BASE + $_CPU_DBGOFF}] \
  25                 {*}[expr {$i ? "-coreid $i" : "-rtos hwthread" }]
  26         lappend _TARGETS $_CHIPNAME.cpu$i
  27 }
  28
  29 target smp {*}$_TARGETS
  30
  31 # Service processor
  32 target create $_CHIPNAME.sp cortex_a -dap $_CHIPNAME.dap -ap-num 0 -dbgbase 0x80138000
  33
  34 # Normally you will not need to call this, but if you are using the hard-coded
  35 # Reset Configuration Word (RCW) you will need to call this manually. The CPU's
  36 # reset vector is 0, and the boot ROM at that location contains ARMv7-A 32-bit
  37 # instructions. This will cause the CPU to almost immediately execute an
  38 # illegal instruction.
  39 #
  40 # This code is idempotent; releasing a released CPU has no effect, although it
  41 # will halt/resume the service processor.
  42 add_help_text release_cpu "Release a cpu which is held off"
  43 proc release_cpu {cpu} {
  44         set RST_BRRL 0x1e60060
  45
  46         set old [target current]
  47         targets $::_CHIPNAME.sp
  48         set not_halted [string compare halted [$::_CHIPNAME.sp curstate]]
  49         if {$not_halted} {
  50                 halt
  51         }
  52
  53         # Release the cpu; it will start executing something bogus
  54         mem2array regs 32 $RST_BRRL 1
  55         mww $RST_BRRL [expr {$regs(0) | 1 << $cpu}]
  56
  57         if {$not_halted} {
  58                 resume
  59         }
  60         targets $old
  61 }
  62
  63 targets $_CHIPNAME.cpu0