From 8eb7a55797f92dd092f8c3cd90b8aff785bed8ed Mon Sep 17 00:00:00 2001
From: Istvan Csomortani <istvan.csomortani@analog.com>
Date: Wed, 2 Jul 2014 18:09:48 +0300
Subject: [PATCH] prcfg_lib: Fixed the gpio status merge logic

  The previous logic did not passed implementation.
---
 library/prcfg/common/prcfg_top.v | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/library/prcfg/common/prcfg_top.v b/library/prcfg/common/prcfg_top.v
index 161fdad26..82da1bcc8 100644
--- a/library/prcfg/common/prcfg_top.v
+++ b/library/prcfg/common/prcfg_top.v
@@ -101,10 +101,11 @@ module prcfg_top(
   output  [(DBUS_WIDTH - 1):0]      dma_adc_ddata;
   input                             dma_adc_ovf;
 
-  reg     [31:0]                    gpio_output;
+  wire    [31:0]                  gpio_output_s[(NUM_CHANNEL - 1):0];
+  wire    [(NUM_CHANNEL - 1):0]   gpio_output_s_inv[31:0];
 
-  wire    [31:0]                    adc_status_s[(NUM_CHANNEL - 1):0];
-  wire    [31:0]                    dac_status_s[(NUM_CHANNEL - 1):0];
+  wire    [31:0]                  adc_status_s[(NUM_CHANNEL - 1):0];
+  wire    [31:0]                  dac_status_s[(NUM_CHANNEL - 1):0];
 
   genvar l_inst;
 
@@ -176,10 +177,27 @@ module prcfg_top(
           );
         end
       end
-      always @(posedge clk) begin
-        gpio_output <= gpio_output | adc_status_s[l_inst] | dac_status_s[l_inst];
-      end
+      assign gpio_output_s[l_inst] = adc_status_s[l_inst] | dac_status_s[l_inst];
+
     end
   endgenerate
 
+  genvar i;
+  genvar j;
+
+  generate
+  for(i = 0; i < 32; i = i + 1) begin
+    for(j = 0; j < NUM_CHANNEL; j = j + 1) begin
+      assign gpio_output_s_inv[i][j] = gpio_output_s[j][i];
+    end
+  end
+  endgenerate
+
+  // generate gpio_output
+  generate
+  for(i = 0; i < 32; i = i + 1) begin
+    assign gpio_output[i] = |gpio_output_s_inv[i];
+  end
+  endgenerate
+
 endmodule