--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Renesas RZ/G2 SOCs
+# - There are a combination of Cortex-A57s, Cortex-A53s, Cortex-A55, Cortex-R7
+# and Cortex-M33 for each SOC
+# - Each SOC can boot through the Cortex-A5x cores
+
+# Supported RZ/G2 SOCs and their cores:
+# RZ/G2H: Cortex-A57 x4, Cortex-A53 x4, Cortex-R7
+# RZ/G2M: Cortex-A57 x2, Cortex-A53 x4, Cortex-R7
+# RZ/G2N: Cortex-A57 x2, Cortex-R7
+# RZ/G2E: Cortex-A53 x2, Cortex-R7
+# RZ/G2L: Cortex-A55 x2, Cortex-M33
+
+# Usage:
+# There are 2 configuration options:
+# SOC: Selects the supported SOC. (Default 'G2L')
+# BOOT_CORE: Selects the booting core. 'CA57', 'CA53' or 'CA55'
+
+transport select jtag
+reset_config trst_and_srst srst_gates_jtag
+adapter speed 4000
+adapter srst delay 500
+
+if { [info exists SOC] } {
+ set _soc $SOC
+} else {
+ set _soc G2L
+}
+
+set _num_ca57 0
+set _num_ca55 0
+set _num_ca53 0
+set _num_cr7 0
+set _num_cm33 0
+
+# Set configuration for each SOC and the default 'BOOT_CORE'
+switch $_soc {
+ G2H {
+ set _CHIPNAME r8a774ex
+ set _num_ca57 4
+ set _num_ca53 4
+ set _num_cr7 1
+ set _boot_core CA57
+ set _ap_num 1
+ }
+ G2M {
+ set _CHIPNAME r8a774ax
+ set _num_ca57 2
+ set _num_ca53 4
+ set _num_cr7 1
+ set _boot_core CA57
+ set _ap_num 1
+ }
+ G2N {
+ set _CHIPNAME r8a774bx
+ set _num_ca57 2
+ set _num_ca53 0
+ set _num_cr7 1
+ set _boot_core CA57
+ set _ap_num 1
+ }
+ G2E {
+ set _CHIPNAME r8a774c0
+ set _num_ca57 0
+ set _num_ca53 2
+ set _num_cr7 1
+ set _boot_core CA53
+ set _ap_num 1
+ }
+ G2L {
+ set _CHIPNAME r9a07g044l
+ set _num_ca55 2
+ set _num_cm33 1
+ set _boot_core CA55
+ set _ap_num 0
+ }
+ default {
+ error "'$_soc' is invalid!"
+ }
+}
+
+# If configured, override the default 'CHIPNAME'
+if { [info exists CHIPNAME] } {
+ set _CHIPNAME $CHIPNAME
+}
+
+# If configured, override the default 'BOOT_CORE'
+if { [info exists BOOT_CORE] } {
+ set _boot_core $BOOT_CORE
+}
+
+if { [info exists DAP_TAPID] } {
+ set _DAP_TAPID $DAP_TAPID
+} else {
+ set _DAP_TAPID 0x6ba00477
+}
+
+echo "\t$_soc - $_num_ca57 CA57(s), $_num_ca55 CA55(s), $_num_ca53 CA53(s), $_num_cr7 CR7(s), \
+ $_num_cm33 CM33(s)"
+echo "\tBoot Core - $_boot_core\n"
+
+set _DAPNAME $_CHIPNAME.dap
+
+
+# TAP and DAP
+jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_DAP_TAPID \
+ -ignore-version
+dap create $_DAPNAME -chain-position $_CHIPNAME.cpu
+echo "$_CHIPNAME.cpu"
+
+set CA57_DBGBASE {0x80410000 0x80510000 0x80610000 0x80710000}
+set CA57_CTIBASE {0x80420000 0x80520000 0x80620000 0x80720000}
+set CA55_DBGBASE {0x10E10000 0x10F10000}
+set CA55_CTIBASE {0x10E20000 0x10F20000}
+set CA53_DBGBASE {0x80C10000 0x80D10000 0x80E10000 0x80F10000}
+set CA53_CTIBASE {0x80C20000 0x80D20000 0x80E20000 0x80F20000}
+set CR7_DBGBASE 0x80910000
+set CR7_CTIBASE 0x80918000
+set CM33_DBGBASE 0xE000E000
+set CM33_CTIBASE 0xE0042000
+
+set smp_targets ""
+
+proc setup_a5x {core_name dbgbase ctibase num boot} {
+ for { set _core 0 } { $_core < $num } { incr _core } {
+ set _TARGETNAME $::_CHIPNAME.$core_name.$_core
+ set _CTINAME $_TARGETNAME.cti
+ cti create $_CTINAME -dap $::_DAPNAME -ap-num $::_ap_num \
+ -baseaddr [lindex $ctibase $_core]
+ target create $_TARGETNAME aarch64 -dap $::_DAPNAME \
+ -ap-num $::_ap_num -dbgbase [lindex $dbgbase $_core] -cti $_CTINAME
+ if { $_core > 0 || $boot == 0 } {
+ $_TARGETNAME configure -defer-examine
+ }
+ set ::smp_targets "$::smp_targets $_TARGETNAME"
+ }
+}
+
+proc setup_cr7 {dbgbase ctibase} {
+ set _TARGETNAME $::_CHIPNAME.r7
+ set _CTINAME $_TARGETNAME.cti
+ cti create $_CTINAME -dap $::_DAPNAME -ap-num 1 -baseaddr $ctibase
+ target create $_TARGETNAME cortex_r4 -dap $::_DAPNAME \
+ -ap-num 1 -dbgbase $dbgbase -defer-examine
+}
+
+proc setup_cm33 {dbgbase ctibase} {
+ set _TARGETNAME $::_CHIPNAME.m33
+ set _CTINAME $_TARGETNAME.cti
+ cti create $_CTINAME -dap $::_DAPNAME -ap-num 2 -baseaddr $ctibase
+ target create $_TARGETNAME cortex_m -dap $::_DAPNAME \
+ -ap-num 2 -dbgbase $dbgbase -defer-examine
+}
+
+# Organize target list based on the boot core
+if { $_boot_core == "CA57" } {
+ setup_a5x a57 $CA57_DBGBASE $CA57_CTIBASE $_num_ca57 1
+ setup_a5x a53 $CA53_DBGBASE $CA53_CTIBASE $_num_ca53 0
+ setup_cr7 $CR7_DBGBASE $CR7_CTIBASE
+} elseif { $_boot_core == "CA53" } {
+ setup_a5x a53 $CA53_DBGBASE $CA53_CTIBASE $_num_ca53 1
+ setup_a5x a57 $CA57_DBGBASE $CA57_CTIBASE $_num_ca57 0
+ setup_cr7 $CR7_DBGBASE $CR7_CTIBASE
+} elseif { $_boot_core == "CA55" } {
+ setup_a5x a55 $CA55_DBGBASE $CA55_CTIBASE $_num_ca55 1
+ setup_cm33 $CM33_DBGBASE $CM33_CTIBASE
+}
+echo "SMP targets:$smp_targets"
+eval "target smp $smp_targets"
+
+if { $_soc == "G2L"} {
+ target create $_CHIPNAME.axi_ap mem_ap -dap $_DAPNAME -ap-num 1
+}
+
+proc init_reset {mode} {
+ # Assert both resets: equivalent to a power-on reset
+ adapter assert trst assert srst
+
+ # Deassert TRST to begin TAP communication
+ adapter deassert trst assert srst
+
+ # TAP should now be responsive, validate the scan-chain
+ jtag arp_init
+}
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