From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Fri, 12 Jun 2020 11:47:06 +0000 (+1000)
Subject: bram: Remove combinational loop on stall
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6c3a8bf4171173c87d694d6721464c8e2f6423a6;p=microwatt.git

bram: Remove combinational loop on stall

It hurts timing and is pointless

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

diff --git a/soc.vhdl b/soc.vhdl
index 23d3885..7c8e825 100644
--- a/soc.vhdl
+++ b/soc.vhdl
@@ -609,7 +609,7 @@ begin
     no_bram: if MEMORY_SIZE = 0 generate
         wb_bram_out.ack <= wb_bram_in.cyc and wb_bram_in.stb;
         wb_bram_out.dat <= x"FFFFFFFFFFFFFFFF";
-        wb_bram_out.stall <= wb_bram_in.cyc and not wb_bram_out.ack;
+        wb_bram_out.stall <= not wb_bram_out.ack;
     end generate;
 
     -- DMI(debug bus) <-> JTAG bridge