diff --git a/tcl/target/ti_k3.cfg b/tcl/target/ti_k3.cfg
index 325ee0004..8fb71482c 100644
--- a/tcl/target/ti_k3.cfg
+++ b/tcl/target/ti_k3.cfg
@@ -161,6 +161,12 @@ proc m3_up {} {
 	$::_TARGETNAME.m3 arp_examine
 }
 
+$_TARGETNAME.m3 configure -event gdb-attach {
+	m3_up
+	# gdb-attach default rule
+	halt 1000
+}
+
 set _v8_smp_targets ""
 
 for { set _core 0 } { $_core < $_armv8_cores } { incr _core } {
@@ -253,4 +259,10 @@ if { $_mcu_m4_cores != 0 } {
 
 		$::_TARGETNAME.m4 arp_examine
 	}
+
+	$_TARGETNAME.m4 configure -event gdb-attach {
+		m4_up
+		# gdb-attach default rule
+		halt 1000
+	}
 }