From 7f4e0185b54d347b9c50bf027c44fbc2a973da1c Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@ozlabs.org>
Date: Tue, 27 Jan 2026 15:44:44 +1100
Subject: [PATCH] xilinx_mult: Eliminate a Vivado warning

Since the p1 instance of DSP48 has CREG = 0, we should ground the CEC
input, as mentioned in a Vivado warning.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
 xilinx-mult.vhdl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xilinx-mult.vhdl b/xilinx-mult.vhdl
index 26ba5d7..b78e950 100644
--- a/xilinx-mult.vhdl
+++ b/xilinx-mult.vhdl
@@ -960,7 +960,7 @@ begin
             CEALUMODE => valid_1,
             CEB1 => '0',
             CEB2 => valid_1,
-            CEC => valid_1,
+            CEC => '0',
             CECARRYIN => '0',
             CECTRL => '0',
             CED => '0',