From 01f7f75ca350e1d0bd4b376628b71b4f1963d533 Mon Sep 17 00:00:00 2001
From: Javier Valenzuela <javier.valenzuela@ni.com>
Date: Thu, 10 Feb 2022 12:16:22 -0600
Subject: [PATCH] fpga: x400: Add DRAM enable macro

Original-commit: cdcd39aeb508298e28e8a2a89db5ab9fefd70435
---
 top/x400/x4xx_core.v | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/top/x400/x4xx_core.v b/top/x400/x4xx_core.v
index c9ab18e..df60b8a 100644
--- a/top/x400/x4xx_core.v
+++ b/top/x400/x4xx_core.v
@@ -394,6 +394,10 @@ module x4xx_core #(
   // DRAM
   //---------------------------------------------------------------------------
 
+  `ifndef ENABLE_DRAM
+    `define ENABLE_DRAM 0
+  `endif
+
   // Only the 100 and 200 MHz images currently support DRAM due to FPGA
   // resource limitations. For 200 MHz and below, a 64-bit interface provides
   // sufficient bandwidth.