From a3c7446a2b77d6c92e78bce3c6ca62b2e61fe01e Mon Sep 17 00:00:00 2001
From: Martin Troiber <34752929+developandplay@users.noreply.github.com>
Date: Sat, 16 Oct 2021 04:34:45 +0200
Subject: [PATCH] Fix tang nano loopback and button

---
 litex_boards/platforms/sipeed_tang_nano.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/litex_boards/platforms/sipeed_tang_nano.py b/litex_boards/platforms/sipeed_tang_nano.py
index 13e9602..364fe45 100644
--- a/litex_boards/platforms/sipeed_tang_nano.py
+++ b/litex_boards/platforms/sipeed_tang_nano.py
@@ -27,7 +27,7 @@ _io = [
 
     # Buttons.
     ("user_btn", 0, Pins("15"),  IOStandard("LVCMOS33")),
-    ("user_btn", 0, Pins("14"),  IOStandard("LVCMOS33")),
+    ("user_btn", 1, Pins("14"),  IOStandard("LVCMOS33")),
 
     # Serial
     ("serial", 0,
@@ -50,6 +50,7 @@ class Platform(GowinPlatform):
     def __init__(self):
         GowinPlatform.__init__(self, "GW1N-LV1QN48C6/I5", _io, _connectors, toolchain="gowin", devicename="GW1N-1")
         self.toolchain.options["use_done_as_gpio"] = 1
+        self.toolchain.options["use_reconfign_as_gpio"] = 1
 
     def create_programmer(self):
         return OpenFPGALoader("tangnano")