diff --git a/targets/atsamd21e18a.json b/targets/atsamd21e18a.json
index eab5e788..ea84dfc7 100644
--- a/targets/atsamd21e18a.json
+++ b/targets/atsamd21e18a.json
@@ -9,5 +9,7 @@
 	"linkerscript": "targets/atsamd21.ld",
 	"extra-files": [
 		"src/device/sam/atsamd21e18a.s"
-	]
+	],
+	"openocd-transport": "swd",
+	"openocd-target": "at91samdXX"
 }
diff --git a/targets/atsamd21g18a.json b/targets/atsamd21g18a.json
index 31c91ce9..fdba2e4e 100644
--- a/targets/atsamd21g18a.json
+++ b/targets/atsamd21g18a.json
@@ -9,5 +9,7 @@
 	"linkerscript": "targets/atsamd21.ld",
 	"extra-files": [
 		"src/device/sam/atsamd21g18a.s"
-	]
+	],
+	"openocd-transport": "swd",
+	"openocd-target": "at91samdXX"
 }
diff --git a/targets/atsamd51g19a.json b/targets/atsamd51g19a.json
index c3ac8160..232e42d1 100644
--- a/targets/atsamd51g19a.json
+++ b/targets/atsamd51g19a.json
@@ -7,5 +7,7 @@
 	"linkerscript": "targets/atsamd51.ld",
 	"extra-files": [
 		"src/device/sam/atsamd51g19a.s"
-	]
+	],
+	"openocd-transport": "swd",
+	"openocd-target": "atsame5x"
 }
diff --git a/targets/atsamd51j19a.json b/targets/atsamd51j19a.json
index 1bd42a0a..3f69b9b4 100644
--- a/targets/atsamd51j19a.json
+++ b/targets/atsamd51j19a.json
@@ -7,5 +7,7 @@
 	"linkerscript": "targets/atsamd51.ld",
 	"extra-files": [
 		"src/device/sam/atsamd51j19a.s"
-	]
+	],
+	"openocd-transport": "swd",
+	"openocd-target": "atsame5x"
 }
diff --git a/targets/atsamd51j20a.json b/targets/atsamd51j20a.json
index 2089b5d6..40893bc9 100644
--- a/targets/atsamd51j20a.json
+++ b/targets/atsamd51j20a.json
@@ -7,5 +7,7 @@
 	"linkerscript": "targets/atsamd51j20a.ld",
 	"extra-files": [
 		"src/device/sam/atsamd51j20a.s"
-	]
+	],
+	"openocd-transport": "swd",
+	"openocd-target": "atsame5x"
 }
diff --git a/targets/atsamd51p19a.json b/targets/atsamd51p19a.json
index 23c1777c..bbf40cac 100644
--- a/targets/atsamd51p19a.json
+++ b/targets/atsamd51p19a.json
@@ -7,5 +7,7 @@
 	"linkerscript": "targets/atsamd51.ld",
 	"extra-files": [
 		"src/device/sam/atsamd51p19a.s"
-	]
+	],
+	"openocd-transport": "swd",
+	"openocd-target": "atsame5x"
 }