From bce8233019cec3b7f778befd9457c9c637b05c6c Mon Sep 17 00:00:00 2001
From: tangxifan <tangxifan@gmail.com>
Date: Wed, 4 Nov 2020 20:58:58 -0700
Subject: [PATCH] [Arch] Bug fix in caravel arch

---
 ...egister_scan_chain_nonLR_caravel_io_skywater130nm.xml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/openfpga_flow/vpr_arch/k4_frac_N8_tileable_register_scan_chain_nonLR_caravel_io_skywater130nm.xml b/openfpga_flow/vpr_arch/k4_frac_N8_tileable_register_scan_chain_nonLR_caravel_io_skywater130nm.xml
index f13150cf6..8885db564 100644
--- a/openfpga_flow/vpr_arch/k4_frac_N8_tileable_register_scan_chain_nonLR_caravel_io_skywater130nm.xml
+++ b/openfpga_flow/vpr_arch/k4_frac_N8_tileable_register_scan_chain_nonLR_caravel_io_skywater130nm.xml
@@ -25,6 +25,15 @@
   -->
   <models>
     <!-- A virtual model for I/O to be used in the physical mode of io block -->
+    <model name="io">
+      <input_ports>
+        <port name="outpad"/>
+      </input_ports>
+      <output_ports>
+        <port name="inpad"/>
+      </output_ports>
+    </model>
+
     <model name="frac_lut4">
       <input_ports>
         <port name="in"/>