xtal-4.fpd:

1. duplicated from ben-wpan/modules/xtal-4.fpd and added new variant xtal4-6mmx3.6mm
2. added pin1 marker

modules/INFO

@@ -8,6 +8,11 @@
 # Printed 8:10 card contacs
 F: 8_10-card
 
+# Open clip for AA batteries, through-hole
+# http://www.memoryprotectiondevices.com/datasheets/BK-92-datasheet.pdf
+# Note: should generalize this for AAA and maybe also larger sizes
+F: bat-clip-aa-th
+
 # BGA
 F: bga
 # - 484-Pin FineLine BGA(FBGA), from Altera
@@ -301,7 +306,15 @@ F: usb_a_plug_smt
 # USB 2.0 from usb_20_040908, page 99
 F: usb-a-pcb
 
-# Open clip for AA batteries, through-hole
-# http://www.memoryprotectiondevices.com/datasheets/BK-92-datasheet.pdf
-# Note: should generalize this for AAA and maybe also larger sizes
-F: bat-clip-aa-th
+# 4-pins rectangular smd xtal
+F: xtal-4
+#
+# - xtal4-3.2mm*2.5mm package drawing, land pattern
+#   for example NX3225SA
+#   http://www.ndk.com/images/products/catalog/c_NX3225SA-STD-CSQ-1_e.pdf
+#
+# - xtal4-6mm*3.6mm package drawing, land pattern
+#   for example ABMM2-24.576MHZ-E2-T
+#   http://www.abracon.com/Resonators/ABMM2.pdf
+#
+