From ebea9ad4682fa6b506777b4e778f7f8129130c4e Mon Sep 17 00:00:00 2001
From: bsdevlin <bsdevlin@LAPTOP-AL12KDU7>
Date: Sun, 15 Sep 2019 13:58:44 +0800
Subject: [PATCH] Bug fix for bls12-381 axi bridge writing to reduction RAM
 multiplier

---
 zcash_fpga/src/rtl/bls12_381/bls12_381_axi_bridge.sv | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/zcash_fpga/src/rtl/bls12_381/bls12_381_axi_bridge.sv b/zcash_fpga/src/rtl/bls12_381/bls12_381_axi_bridge.sv
index 2109691..1596c5b 100644
--- a/zcash_fpga/src/rtl/bls12_381/bls12_381_axi_bridge.sv
+++ b/zcash_fpga/src/rtl/bls12_381/bls12_381_axi_bridge.sv
@@ -32,7 +32,7 @@ module bls12_381_axi_bridge (
   output logic        o_new_inst_pt_val,
   output logic        o_reset_inst_ram,
   output logic        o_reset_data_ram,
-  
+
   // Interface to memory used in multiplier
   output logic [31:0] o_ram_d,
   output logic        o_ram_we,
@@ -67,7 +67,7 @@ always_ff @ (posedge i_clk) begin
     o_new_inst_pt <= 0;
     o_reset_inst_ram <= 0;
     o_reset_data_ram <= 0;
-    
+
     o_ram_d <= 0;
     o_ram_we <= 0;
     o_ram_se <= 0;
@@ -88,6 +88,9 @@ always_ff @ (posedge i_clk) begin
     data_ram_if.re <= 1;
     data_ram_if.we <= 0;
 
+    o_ram_we <= 0;
+    o_ram_se <= 0;
+
     axi_lite_if.arready <= data_ram_read == 0 && inst_ram_read == 0 &&
                            wr_active == 0 && i_reset_done == 1;
 
@@ -164,7 +167,7 @@ always_ff @ (posedge i_clk) begin
           32'h1c: begin
             o_ram_we <= axi_lite_if.wdata[0];
             o_ram_se <= axi_lite_if.wdata[1];
-          end          
+          end
         endcase
       end else
       if (wr_addr < DATA_AXIL_START) begin