Allow login on ttyS4
diff --git a/common/recipes-extended/shadow/shadow-securetty/securetty.patch b/common/recipes-extended/shadow/shadow-securetty/securetty.patch
new file mode 100644
index 0000000..6533e4a
--- /dev/null
+++ b/common/recipes-extended/shadow/shadow-securetty/securetty.patch
@@ -0,0 +1,10 @@
+--- a/securetty
++++ b/securetty
+@@ -7,6 +7,7 @@ ttyS0
+ ttyS1
+ ttyS2
+ ttyS3
++ttyS4
+
+ # ARM AMBA SoCs
+ ttyAM0
diff --git a/common/recipes-extended/shadow/shadow-securetty_%.bbappend b/common/recipes-extended/shadow/shadow-securetty_%.bbappend
new file mode 100644
index 0000000..70ab435
--- /dev/null
+++ b/common/recipes-extended/shadow/shadow-securetty_%.bbappend
@@ -0,0 +1,4 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+SRC_URI += "file://securetty.patch"
+