raspi4.cfg

# SPDX-License-Identifier: GPL-2.0-or-later

# The Broadcom BCM2711 used in Raspberry Pi 4
# No documentation was found on Broadcom website

# Partial information is available in raspberry pi website:
# https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2711/

if { [info exists CHIPNAME] } {
    set  _CHIPNAME $CHIPNAME
} else {
    set  _CHIPNAME bcm2711
}

if { [info exists CHIPCORES] } {
    set _cores $CHIPCORES
} else {
    set _cores 4
}

if { [info exists USE_SMP] } {
    set _USE_SMP $USE_SMP
} else {
    set _USE_SMP 0
}

if { [info exists DAP_TAPID] } {
    set _DAP_TAPID $DAP_TAPID
} else {
    set _DAP_TAPID 0x4ba00477
}

jtag newtap $_CHIPNAME cpu -expected-id $_DAP_TAPID -irlen 4
adapter speed 3000

dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu

# MEM-AP for direct access
target create $_CHIPNAME.ap mem_ap -dap $_CHIPNAME.dap -ap-num 0

# these addresses are obtained from the ROM table via 'dap info 0' command
set _DBGBASE {0x80410000 0x80510000 0x80610000 0x80710000}
set _CTIBASE {0x80420000 0x80520000 0x80620000 0x80720000}

set _smp_command "target smp"

for { set _core 0 } { $_core < $_cores } { incr _core } {
    set _CTINAME $_CHIPNAME.cti$_core
    set _TARGETNAME $_CHIPNAME.cpu$_core

    cti create $_CTINAME -dap $_CHIPNAME.dap -ap-num 0 -baseaddr [lindex $_CTIBASE $_core]
    target create $_TARGETNAME aarch64 -dap $_CHIPNAME.dap -ap-num 0 -dbgbase [lindex $_DBGBASE $_core] -cti $_CTINAME

    set _smp_command "$_smp_command $_TARGETNAME"
}

if {$_USE_SMP} {
    eval $_smp_command
}

# default target is cpu0
targets $_CHIPNAME.cpu0