From 05789e8978f93040c94d6553a6111bac57a7248a Mon Sep 17 00:00:00 2001
From: Laszlo Nagy <laszlo.nagy@analog.com>
Date: Thu, 9 Aug 2018 10:18:15 +0100
Subject: [PATCH] adrv9009/adrv9371x/fmcomms2:Drop usage of ad_iobuf on
 non-bidirectional IOs

Some projects use the ad_iobuf on IOs that are not bidirectional
producing synthesis warnings.

The change fixes warnings like:
[Synth 8-6104] Input port 'gpio_bd_i' has an internal driver
[Synth 8-6104] Input port 'gpio_status' has an internal driver
---
 projects/adrv9009/zcu102/system_top.v  | 11 +++--------
 projects/adrv9371x/zcu102/system_top.v | 12 +++++-------
 projects/fmcomms2/kcu105/system_top.v  | 17 ++++++++---------
 3 files changed, 16 insertions(+), 24 deletions(-)

diff --git a/projects/adrv9009/zcu102/system_top.v b/projects/adrv9009/zcu102/system_top.v
index d7e6fe186..53830bb05 100644
--- a/projects/adrv9009/zcu102/system_top.v
+++ b/projects/adrv9009/zcu102/system_top.v
@@ -199,14 +199,9 @@ module system_top (
               adrv9009_gpio_16,     // 33
               adrv9009_gpio_18}));  // 32
 
-  ad_iobuf #(.DATA_WIDTH(21)) i_iobuf_bd (
-    .dio_t (gpio_t[20:0]),
-    .dio_i (gpio_o[20:0]),
-    .dio_o (gpio_i[20:0]),
-    .dio_p (gpio_bd));
-
-  assign gpio_bd_i = gpio_bd[20:8];
-  assign gpio_bd_o = gpio_bd[ 7:0];
+  assign gpio_i[ 7: 0] = gpio_o[ 7: 0];
+  assign gpio_i[20: 8] = gpio_bd_i;
+  assign gpio_bd_o = gpio_o[ 7: 0];
 
   assign spi_csn_ad9528 =  spi_csn[0];
   assign spi_csn_adrv9009 =  spi_csn[1];
diff --git a/projects/adrv9371x/zcu102/system_top.v b/projects/adrv9371x/zcu102/system_top.v
index 7b28066ba..9f95081a5 100644
--- a/projects/adrv9371x/zcu102/system_top.v
+++ b/projects/adrv9371x/zcu102/system_top.v
@@ -179,14 +179,12 @@ module system_top (
               ad9371_gpio_16,       // 33
               ad9371_gpio_18}));    // 32
 
-  ad_iobuf #(.DATA_WIDTH(21)) i_iobuf_bd (
-    .dio_t (gpio_t[20:0]),
-    .dio_i (gpio_o[20:0]),
-    .dio_o (gpio_i[20:0]),
-    .dio_p (gpio_bd));
+  assign gpio_i[ 7: 0] = gpio_o[ 7: 0];
+  assign gpio_i[20: 8] = gpio_bd_i;
+  assign gpio_i[31:21] = gpio_o[31:21];
+  assign gpio_i[94:60] = gpio_o[94:60];
 
-  assign gpio_bd_i = gpio_bd[20:8];
-  assign gpio_bd_o = gpio_bd[ 7:0];
+  assign gpio_bd_o = gpio_o[ 7: 0];
 
   assign spi_csn_ad9528 =  spi_csn[0];
   assign spi_csn_ad9371 =  spi_csn[1];
diff --git a/projects/fmcomms2/kcu105/system_top.v b/projects/fmcomms2/kcu105/system_top.v
index 9935fb952..3500bfb5e 100644
--- a/projects/fmcomms2/kcu105/system_top.v
+++ b/projects/fmcomms2/kcu105/system_top.v
@@ -119,15 +119,10 @@ module system_top (
 
   // instantiations
 
-  ad_iobuf #(.DATA_WIDTH(15)) i_iobuf (
-    .dio_t (gpio_t[46:32]),
-    .dio_i (gpio_o[46:32]),
-    .dio_o (gpio_i[46:32]),
-    .dio_p ({ gpio_resetb,
-              gpio_sync,
-              gpio_en_agc,
-              gpio_ctl,
-              gpio_status}));
+  assign gpio_resetb = gpio_o[46:46];
+  assign gpio_sync = gpio_o[45:45];
+  assign gpio_en_agc = gpio_o[44:44];
+  assign gpio_ctl = gpio_o[43:40];
 
   ad_iobuf #(.DATA_WIDTH(17)) i_iobuf_bd (
     .dio_t (gpio_t[16:0]),
@@ -135,6 +130,10 @@ module system_top (
     .dio_o (gpio_i[16:0]),
     .dio_p (gpio_bd));
 
+  assign gpio_i[63:40] = gpio_o[63:40];
+  assign gpio_i[39:32] = gpio_status;
+  assign gpio_i[31:17] = gpio_0[31:17];
+
   system_wrapper i_system_wrapper (
     .c0_ddr4_act_n (ddr4_act_n),
     .c0_ddr4_adr (ddr4_addr),