--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2019-2021 Texas Instruments Incorporated - http://www.ti.com/
+#
+# Texas Instruments K3 devices:
+# * AM654x: https://www.ti.com/lit/pdf/spruid7
+# Has 4 ARMV8 Cores and 2 R5 Cores and an M3
+# * J721E: https://www.ti.com/lit/pdf/spruil1
+# Has 2 ARMV8 Cores and 6 R5 Cores and an M3
+# * J7200: https://www.ti.com/lit/pdf/spruiu1
+# Has 2 ARMV8 Cores and 4 R5 Cores and an M3
+# * AM642: https://www.ti.com/lit/pdf/spruim2
+# Has 2 ARMV8 Cores and 4 R5 Cores, M4F and an M3
+#
+
+if { [info exists SOC] } {
+ set _soc $SOC
+} else {
+ set _soc am654
+}
+
+# set V8_SMP_DEBUG to non 0 value in board if you'd like to use SMP debug
+if { [info exists V8_SMP_DEBUG] } {
+ set _v8_smp_debug $V8_SMP_DEBUG
+} else {
+ set _v8_smp_debug 0
+}
+
+# Common Definitions
+
+# CM3 the very first processor - all current SoCs have it.
+set CM3_CTIBASE {0x3C016000}
+
+# M3 power-ap unlock offsets
+set _m3_ap_unlock_offsets {0xf0 0x44}
+
+# All the ARMV8s are the next processors.
+# CL0,CORE0 CL0,CORE1 CL1,CORE0 CL1,CORE1
+set ARMV8_DBGBASE {0x90410000 0x90510000 0x90810000 0x90910000}
+set ARMV8_CTIBASE {0x90420000 0x90520000 0x90820000 0x90920000}
+
+# And we add up the R5s
+# (0)MCU 0 (1)MCU 1 (2)MAIN_0_0 (3)MAIN_0_1 (4)MAIN_1_0 (5)MAIN_1_1
+set R5_DBGBASE {0x9d010000 0x9d012000 0x9d410000 0x9d412000 0x9d510000 0x9d512000}
+set R5_CTIBASE {0x9d018000 0x9d019000 0x9d418000 0x9d419000 0x9d518000 0x9d519000}
+
+# Finally an M4F
+set CM4_CTIBASE {0x20001000}
+
+# M4 may be present on some very few SoCs
+set _mcu_m4_cores 0
+# M4 power-ap unlock offsets
+set _m4_ap_unlock_offsets {0xf0 0x60}
+
+# Set configuration overrides for each SOC
+switch $_soc {
+ am654 {
+ set _CHIPNAME am654
+ set _K3_DAP_TAPID 0x0bb5a02f
+
+ # AM654 has 2 clusters of 2 A53 cores each.
+ set _armv8_cpu_name a53
+ set _armv8_cores 4
+
+ # AM654 has 1 cluster of 2 R5s cores.
+ set _r5_cores 2
+ set _mcu_r5_cores 2
+ set _mcu_base_core_id 0
+ set _main0_r5_cores 0
+ set _main0_base_core_id 0
+ set _main1_r5_cores 0
+ set _main1_base_core_id 0
+
+ # M3 power-ap unlock offsets
+ set _m3_ap_unlock_offsets {0xf0 0x50}
+ }
+ am642 {
+ set _CHIPNAME am642
+ set _K3_DAP_TAPID 0x0bb3802f
+
+ # AM642 has 1 clusters of 2 A53 cores each.
+ set _armv8_cpu_name a53
+ set _armv8_cores 2
+ set ARMV8_DBGBASE {0x90010000 0x90110000}
+ set ARMV8_CTIBASE {0x90020000 0x90120000}
+
+ # AM642 has 2 cluster of 2 R5s cores.
+ set _r5_cores 4
+ set _mcu_r5_cores 0
+ set _mcu_base_core_id 0
+ set _main0_r5_cores 2
+ set _main0_base_core_id 0
+ set _main1_r5_cores 2
+ set _main1_base_core_id 2
+ set R5_DBGBASE {0x9d410000 0x9d412000 0x9d510000 0x9d512000}
+ set R5_CTIBASE {0x9d418000 0x9d419000 0x9d518000 0x9d519000}
+
+ # M4 processor
+ set _mcu_m4_cores 1
+ }
+ j721e {
+ set _CHIPNAME j721e
+ set _K3_DAP_TAPID 0x0bb6402f
+ # J721E has 1 cluster of 2 A72 cores.
+ set _armv8_cpu_name a72
+ set _armv8_cores 2
+
+ # J721E has 3 clusters of 2 R5 cores each.
+ set _r5_cores 6
+ set _mcu_r5_cores 2
+ set _mcu_base_core_id 0
+ set _main0_r5_cores 2
+ set _main0_base_core_id 2
+ set _main1_r5_cores 2
+ set _main1_base_core_id 4
+ }
+ j7200 {
+ set _CHIPNAME j7200
+ set _K3_DAP_TAPID 0x0bb6d02f
+
+ # J7200 has 1 cluster of 2 A72 cores.
+ set _armv8_cpu_name a72
+ set _armv8_cores 2
+
+ # J7200 has 2 clusters of 2 R5 cores each.
+ set _r5_cores 4
+ set _mcu_r5_cores 2
+ set _mcu_base_core_id 0
+ set _main0_r5_cores 2
+ set _main0_base_core_id 2
+ set _main1_r5_cores 0
+ set _main1_base_core_id 0
+ set R5_DBGBASE {0x9d010000 0x9d012000 0x9d110000 0x9d112000}
+ set R5_CTIBASE {0x9d018000 0x9d019000 0x9d118000 0x9d119000}
+
+ # M3 CTI base
+ set CM3_CTIBASE {0x20001000}
+ }
+ default {
+ echo "'$_soc' is invalid!"
+ }
+}
+
+jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id $_K3_DAP_TAPID -ignore-version
+dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
+
+set _TARGETNAME $_CHIPNAME.cpu
+
+set _CTINAME $_CHIPNAME.cti
+
+# M3 is always present
+cti create $_CTINAME.m3 -dap $_CHIPNAME.dap -ap-num 7 -baseaddr [lindex $CM3_CTIBASE 0]
+target create $_TARGETNAME.m3 cortex_m -dap $_CHIPNAME.dap -ap-num 7 -defer-examine
+$_TARGETNAME.m3 configure -event reset-assert { }
+
+proc m3_up { args } {
+ # To access M3, we need to enable the JTAG access for the same.
+ # Ensure Power-AP unlocked
+ $::_CHIPNAME.dap apreg 3 [lindex $::_m3_ap_unlock_offsets 0] 0x00190000
+ $::_CHIPNAME.dap apreg 3 [lindex $::_m3_ap_unlock_offsets 1] 0x00102098
+
+ $::_TARGETNAME.m3 arp_examine
+}
+
+set _v8_smp_targets ""
+
+for { set _core 0 } { $_core < $_armv8_cores } { incr _core } {
+
+ cti create $_CTINAME.$_armv8_cpu_name.$_core -dap $_CHIPNAME.dap -ap-num 1 \
+ -baseaddr [lindex $ARMV8_CTIBASE $_core]
+
+ target create $_TARGETNAME.$_armv8_cpu_name.$_core aarch64 -dap $_CHIPNAME.dap \
+ -dbgbase [lindex $ARMV8_DBGBASE $_core] -cti $_CTINAME.$_armv8_cpu_name.$_core -defer-examine
+
+ set _v8_smp_targets "$_v8_smp_targets $_TARGETNAME.$_armv8_cpu_name.$_core"
+}
+
+# Setup ARMV8 proc commands based on CPU to prevent people confusing SoCs
+set _armv8_up_cmd "$_armv8_cpu_name"_up
+# Available if V8_SMP_DEBUG is set to non-zero value
+set _armv8_smp_cmd "$_armv8_cpu_name"_smp
+
+if { $_v8_smp_debug == 0 } {
+ proc $_armv8_up_cmd { args } {
+ foreach { _core } [set args] {
+ $::_TARGETNAME.$::_armv8_cpu_name.$_core arp_examine
+ $::_TARGETNAME.$::_armv8_cpu_name.$_core aarch64 dbginit
+ }
+ }
+} else {
+ proc $_armv8_smp_cmd { args } {
+ for { set _core 0 } { $_core < $::_armv8_cores } { incr _core } {
+ $::_TARGETNAME.$::_armv8_cpu_name.$_core arp_examine
+ $::_TARGETNAME.$::_armv8_cpu_name.$_core aarch64 dbginit
+ $::_TARGETNAME.$::_armv8_cpu_name.$_core aarch64 smp on
+ }
+ # Set Default target are core 0
+ targets $::_TARGETNAME.$::_armv8_cpu_name.0
+ }
+
+ # Declare SMP
+ target smp $:::_v8_smp_targets
+}
+
+for { set _core 0 } { $_core < $_r5_cores } { incr _core } {
+ cti create $_CTINAME.r5.$_core -dap $_CHIPNAME.dap -ap-num 1 \
+ -baseaddr [lindex $R5_CTIBASE $_core]
+
+ # inactive core examination will fail - wait till startup of additional core
+ target create $_TARGETNAME.r5.$_core cortex_r4 -dap $_CHIPNAME.dap \
+ -dbgbase [lindex $R5_DBGBASE $_core] -ap-num 1 -defer-examine
+}
+
+if { $_mcu_r5_cores != 0 } {
+ proc mcu_r5_up { args } {
+ foreach { _core } [set args] {
+ set _core [expr {$_core + $::_mcu_base_core_id}]
+ $::_TARGETNAME.r5.$_core arp_examine
+ $::_TARGETNAME.r5.$_core cortex_r4 dbginit
+ }
+ }
+}
+
+if { $_main0_r5_cores != 0 } {
+ proc main0_r5_up { args } {
+ foreach { _core } [set args] {
+ set _core [expr {$_core + $::_main0_base_core_id}]
+ $::_TARGETNAME.r5.$_core arp_examine
+ $::_TARGETNAME.r5.$_core cortex_r4 dbginit
+ }
+ }
+}
+
+if { $_main1_r5_cores != 0 } {
+ proc main1_r5_up { args } {
+ foreach { _core } [set args] {
+ set _core [expr {$_core + $::_main1_base_core_id}]
+ $::_TARGETNAME.r5.$_core arp_examine
+ $::_TARGETNAME.r5.$_core cortex_r4 dbginit
+ }
+ }
+}
+
+if { $_mcu_m4_cores != 0 } {
+ cti create $_CTINAME.m4 -dap $_CHIPNAME.dap -ap-num 8 -baseaddr [lindex $CM4_CTIBASE 0]
+ target create $_TARGETNAME.m4 cortex_m -dap $_CHIPNAME.dap -ap-num 8 -defer-examine
+ $_TARGETNAME.m4 configure -event reset-assert { }
+
+ proc m4_up { args } {
+ # To access M4, we need to enable the JTAG access for the same.
+ # Ensure Power-AP unlocked
+ $::_CHIPNAME.dap apreg 3 [lindex $::_m4_ap_unlock_offsets 0] 0x00190000
+ $::_CHIPNAME.dap apreg 3 [lindex $::_m4_ap_unlock_offsets 1] 0x00102098
+
+ $::_TARGETNAME.m4 arp_examine
+ }
+}
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