RTL code refactoring

hw/rtl/interfaces/VX_cache_dram_req_if.v

@@ -0,0 +1,21 @@
+`ifndef VX_CACHE_DRAM_REQ_IF
+`define VX_CACHE_DRAM_REQ_IF
+
+`include "../cache/VX_cache_config.vh"
+
+interface VX_cache_dram_req_if #(
+    parameter BANK_LINE_WORDS = 2
+) ();
+
+    // DRAM Request
+    wire                              dram_req_write;
+    wire                              dram_req_read;
+    wire [31:0]                       dram_req_addr;
+    wire [BANK_LINE_WORDS-1:0][31:0]  dram_req_data;    
+    wire                              dram_req_ready;
+
+    wire                              dram_rsp_ready;    
+
+endinterface
+
+`endif