From 7f05e0c121daa5966144e7435d1b8da3816ebd4a Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Wed, 11 Jul 2018 19:00:16 +0800
Subject: [PATCH] sayma_rtm: remove UART loopback

RTM power supply issues are fixed now, plus this will get in the way of satman support.
---
 artiq/gateware/targets/sayma_rtm.py | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/artiq/gateware/targets/sayma_rtm.py b/artiq/gateware/targets/sayma_rtm.py
index 1872529fa..7f4cc476d 100755
--- a/artiq/gateware/targets/sayma_rtm.py
+++ b/artiq/gateware/targets/sayma_rtm.py
@@ -129,10 +129,6 @@ class SaymaRTM(Module):
             reset_out=0b0111)
         csr_devices.append("clock_mux")
 
-        # UART loopback
-        serial = platform.request("serial")
-        self.comb += serial.tx.eq(serial.rx)
-
         # Allaki: enable RF output, GPIO access to attenuator
         self.comb += [
             platform.request("allaki0_rfsw0").eq(1),