From: chmousset <ch.mousset@gmail.com>
Date: Wed, 14 Aug 2019 09:30:39 +0000 (+0200)
Subject: [fix] prevent Vivado from inferring DSP48 in AXIBurst2Beat
X-Git-Tag: 24jan2021_ls180~1050^2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=db4c609a33f5d75d72fa1dc687c1fb8a6e2d6e1d;p=litex.git

[fix] prevent Vivado from inferring DSP48 in AXIBurst2Beat
---

diff --git a/litex/soc/interconnect/axi.py b/litex/soc/interconnect/axi.py
index 9089c275..2ccf19d9 100644
--- a/litex/soc/interconnect/axi.py
+++ b/litex/soc/interconnect/axi.py
@@ -113,7 +113,7 @@ class AXIBurst2Beat(Module):
 
         # compute parameters
         self.comb += beat_size.eq(1 << ax_burst.size)
-        self.comb += beat_wrap.eq(ax_burst.len*beat_size)
+        self.comb += beat_wrap.eq(ax_burst.len << ax_burst.size)
 
         # combinatorial logic
         self.comb += [