# The ESP32-S2 only supports JTAG.
transport select jtag
+set CPU_MAX_ADDRESS 0xFFFFFFFF
+source [find bitsbytes.tcl]
+source [find memory.tcl]
+source [find mmr_helpers.tcl]
+
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
jtag newtap $_CHIPNAME $_CPUNAME -irlen 5 -expected-id $_CPUTAPID
+proc esp32s2_memprot_is_enabled { } {
+ # IRAM0, DPORT_PMS_PRO_IRAM0_0_REG
+ if { [get_mmr_bit 0x3f4c1010 0] != 0 } {
+ return 1
+ }
+ # DRAM0, DPORT_PMS_PRO_DRAM0_0_REG
+ if { [get_mmr_bit 0x3f4c1028 0] != 0 } {
+ return 1
+ }
+ # PERI1, DPORT_PMS_PRO_DPORT_0_REG
+ if { [get_mmr_bit 0x3f4c103c 0] != 0 } {
+ return 1
+ }
+ # PERI2, DPORT_PMS_PRO_AHB_0_REG
+ if { [get_mmr_bit 0x3f4c105c 0] != 0 } {
+ return 1
+ }
+ return 0
+}
+
target create $_TARGETNAME esp32s2 -endian little -chain-position $_TAPNAME
+$_TARGETNAME configure -event gdb-attach {
+ # necessary to auto-probe flash bank when GDB is connected and generate proper memory map
+ halt 1000
+ if { [esp32s2_memprot_is_enabled] } {
+ # 'reset halt' to disable memory protection and allow flasher to work correctly
+ echo "Memory protection is enabled. Reset target to disable it..."
+ reset halt
+ }
+}
+
xtensa maskisr on
$_TARGETNAME configure -event reset-assert-post { soft_reset_halt }