From fd3e84941de463fa1a7ebab0a69515b4bf2614cd Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Tue, 7 Oct 2014 11:25:20 +0200
Subject: Removed copy of FPGA source files.

---
 fpga/usrp3/lib/control/Makefile.srcs             |  28 ---
 fpga/usrp3/lib/control/README.txt                |   0
 fpga/usrp3/lib/control/arb_qualify_master.v      |  88 ---------
 fpga/usrp3/lib/control/axi_crossbar.v            | 167 ----------------
 fpga/usrp3/lib/control/axi_crossbar_tb.v         | 214 ---------------------
 fpga/usrp3/lib/control/axi_fifo_header.v         |  84 --------
 fpga/usrp3/lib/control/axi_forwarding_cam.v      | 232 -----------------------
 fpga/usrp3/lib/control/axi_slave_mux.v           | 122 ------------
 fpga/usrp3/lib/control/axi_test_vfifo.v          | 139 --------------
 fpga/usrp3/lib/control/binary_encoder.v          |  42 ----
 fpga/usrp3/lib/control/cvita_uart.v              | 164 ----------------
 fpga/usrp3/lib/control/dram_2port.v              |  27 ---
 fpga/usrp3/lib/control/filter_bad_sid.v          |  72 -------
 fpga/usrp3/lib/control/gpio_atr.v                |  66 -------
 fpga/usrp3/lib/control/por_gen.v                 |  25 ---
 fpga/usrp3/lib/control/radio_ctrl_proc.v         | 143 --------------
 fpga/usrp3/lib/control/radio_ctrl_proc_tb.v      | 104 ----------
 fpga/usrp3/lib/control/ram_2port.v               |  49 -----
 fpga/usrp3/lib/control/reset_sync.v              |  28 ---
 fpga/usrp3/lib/control/serial_to_settings.v      | 121 ------------
 fpga/usrp3/lib/control/serial_to_settings_tb.v   |  82 --------
 fpga/usrp3/lib/control/setting_reg.v             |  35 ----
 fpga/usrp3/lib/control/settings_bus_crossclock.v |  26 ---
 fpga/usrp3/lib/control/simple_i2c_core.v         | 104 ----------
 fpga/usrp3/lib/control/simple_spi_core.v         | 215 ---------------------
 25 files changed, 2377 deletions(-)
 delete mode 100644 fpga/usrp3/lib/control/Makefile.srcs
 delete mode 100644 fpga/usrp3/lib/control/README.txt
 delete mode 100644 fpga/usrp3/lib/control/arb_qualify_master.v
 delete mode 100644 fpga/usrp3/lib/control/axi_crossbar.v
 delete mode 100644 fpga/usrp3/lib/control/axi_crossbar_tb.v
 delete mode 100644 fpga/usrp3/lib/control/axi_fifo_header.v
 delete mode 100644 fpga/usrp3/lib/control/axi_forwarding_cam.v
 delete mode 100644 fpga/usrp3/lib/control/axi_slave_mux.v
 delete mode 100644 fpga/usrp3/lib/control/axi_test_vfifo.v
 delete mode 100644 fpga/usrp3/lib/control/binary_encoder.v
 delete mode 100644 fpga/usrp3/lib/control/cvita_uart.v
 delete mode 100644 fpga/usrp3/lib/control/dram_2port.v
 delete mode 100644 fpga/usrp3/lib/control/filter_bad_sid.v
 delete mode 100644 fpga/usrp3/lib/control/gpio_atr.v
 delete mode 100644 fpga/usrp3/lib/control/por_gen.v
 delete mode 100644 fpga/usrp3/lib/control/radio_ctrl_proc.v
 delete mode 100644 fpga/usrp3/lib/control/radio_ctrl_proc_tb.v
 delete mode 100644 fpga/usrp3/lib/control/ram_2port.v
 delete mode 100644 fpga/usrp3/lib/control/reset_sync.v
 delete mode 100644 fpga/usrp3/lib/control/serial_to_settings.v
 delete mode 100644 fpga/usrp3/lib/control/serial_to_settings_tb.v
 delete mode 100644 fpga/usrp3/lib/control/setting_reg.v
 delete mode 100644 fpga/usrp3/lib/control/settings_bus_crossclock.v
 delete mode 100644 fpga/usrp3/lib/control/simple_i2c_core.v
 delete mode 100644 fpga/usrp3/lib/control/simple_spi_core.v

(limited to 'fpga/usrp3/lib/control')

diff --git a/fpga/usrp3/lib/control/Makefile.srcs b/fpga/usrp3/lib/control/Makefile.srcs
deleted file mode 100644
index 3576e0ee7..000000000
--- a/fpga/usrp3/lib/control/Makefile.srcs
+++ /dev/null
@@ -1,28 +0,0 @@
-#
-# Copyright 2013 Ettus Research LLC
-#
-
-##################################################
-# Control Lib Sources
-##################################################
-CONTROL_LIB_SRCS = $(abspath $(addprefix $(BASE_DIR)/../lib/control/, \
-reset_sync.v \
-por_gen.v \
-gpio_atr.v \
-simple_spi_core.v \
-simple_i2c_core.v \
-setting_reg.v \
-settings_bus_crossclock.v \
-radio_ctrl_proc.v \
-ram_2port.v \
-axi_crossbar.v \
-axi_slave_mux.v \
-axi_fifo_header.v \
-arb_qualify_master.v \
-axi_forwarding_cam.v \
-axi_test_vfifo.v \
-dram_2port.v \
-cvita_uart.v \
-serial_to_settings.v \
-filter_bad_sid.v \
-))
diff --git a/fpga/usrp3/lib/control/README.txt b/fpga/usrp3/lib/control/README.txt
deleted file mode 100644
index e69de29bb..000000000
diff --git a/fpga/usrp3/lib/control/arb_qualify_master.v b/fpga/usrp3/lib/control/arb_qualify_master.v
deleted file mode 100644
index df17fac57..000000000
--- a/fpga/usrp3/lib/control/arb_qualify_master.v
+++ /dev/null
@@ -1,88 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-
-
-//
-// This module forms the qualification engine for a single master as
-// part of a larger arbitration engine for a slave. It would typically
-// be instantiated from arb_select_master.v to form a complete arbitor solution.
-//
-
-module arb_qualify_master
-  #(
-    parameter WIDTH=16  // Bit width of destination field.
-    )
-    (  
-       input clk,
-       input reset,
-       input clear,     
-       // Header signals
-       input [WIDTH-1:0] header,
-       input header_valid,
-       // Slave Confg Signals
-       input [WIDTH-1:0] slave_addr,
-       input [WIDTH-1:0] slave_mask,
-       input slave_valid,
-       // Arbitration flags
-       output reg master_valid,
-       input master_ack
-       );
-
-   localparam WAIT_HEADER_VALID = 0;
-   localparam MATCH = 1;
-   localparam WAIT_HEADER_NOT_VALID = 2;
-   
-   
-   reg [1:0] state, next_state;
-
-   
-   // Does masked slave address match header field for dest from master?
-   assign    header_match = ((header & slave_mask) == (slave_addr & slave_mask)) && slave_valid;
-   
-   
-   always @(posedge clk)
-     if (reset | clear) begin
-        state <= WAIT_HEADER_VALID;
-	master_valid <= 0;
-     end else
-       begin	  
-	  case(state)
-	    //
-	    // Wait here until Masters FIFO presents a valid header word.
-	    //
-	    WAIT_HEADER_VALID: begin
-	       if (header_valid)
-		 if (header_match) begin
-		    state <= MATCH;
-		    master_valid <= 1;
-		 end else
-		   next_state <= WAIT_HEADER_NOT_VALID;
-	    end
-	    //
-	    // There should only ever be one match across various arbitors
-	    // if they are configured correctly and since the backing FIFO in the
-	    // master should not start to drain until the arbitration is won
-	    // by that master, master_ack should always preceed de-assertion of
-	    // header_valid so we don't check for the other order of deassertion.
-	    //
-	    MATCH: begin
-	       if (master_ack) begin
-		  master_valid <= 0;
-		  state <= WAIT_HEADER_NOT_VALID;
-	       end
-	    end
-	    //
-	    // Wait here until this master starts to drain this packet from his FIFO.
-	    //
-	    WAIT_HEADER_NOT_VALID: begin
-	       if (!header_valid) begin
-		  state <= WAIT_HEADER_VALID;
-	       end
-	    end
-	  endcase // case(state)
-       end // else: !if(reset | clear)
-
-endmodule // arb_qualify_master
-
-	 
\ No newline at end of file
diff --git a/fpga/usrp3/lib/control/axi_crossbar.v b/fpga/usrp3/lib/control/axi_crossbar.v
deleted file mode 100644
index a408f69f0..000000000
--- a/fpga/usrp3/lib/control/axi_crossbar.v
+++ /dev/null
@@ -1,167 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-
-
-`define LOG2(N) (\
-                 N < 2 ? 0 : \
-                 N < 4 ? 1 : \
-                 N < 8 ? 2 : \
-                 N < 16 ? 3 : \
-                 N < 32 ? 4 : \
-                 N < 64 ? 5 : \
-		 N < 128 ? 6 : \
-		 N < 256 ? 7 : \
-		 N < 512 ? 8 : \
-		 N < 1024 ? 9 : \
-                 10)
-
-module axi_crossbar
-  #(
-    parameter FIFO_WIDTH = 64,   // AXI4-STREAM data bus width
-    parameter DST_WIDTH = 16,    // Width of DST field we are routing on.
-    parameter NUM_INPUTS = 2,    // number of input AXI4-STREAM buses
-    parameter NUM_OUTPUTS = 2    // number of output AXI4-STREAM buses
-    )
-    (
-     input 				   clk,
-     input 				   reset,
-     input 				   clear,
-     input [7:0] 		 local_addr,
-     // Inputs
-     input [(FIFO_WIDTH*NUM_INPUTS)-1:0]   i_tdata,
-     input [NUM_INPUTS-1:0] 		   i_tvalid,
-     input [NUM_INPUTS-1:0] 		   i_tlast,
-     output [NUM_INPUTS-1:0] 		   i_tready,
-     input [NUM_INPUTS-1:0] 		   pkt_present,
-     // Setting Bus 
-     input 				   set_stb,
-     input [15:0] 			   set_addr,
-     input [31:0] 			   set_data,
-     // Output
-     output [(FIFO_WIDTH*NUM_OUTPUTS)-1:0] o_tdata,
-     output [NUM_OUTPUTS-1:0] 		   o_tvalid,
-     output [NUM_OUTPUTS-1:0] 		   o_tlast,
-     input [NUM_OUTPUTS-1:0] 		   o_tready,
-     // readback bus
-     input                        rb_rd_stb,
-     input [`LOG2(NUM_OUTPUTS)+`LOG2(NUM_INPUTS)-1:0] rb_addr,
-     output [31:0]                rb_data
-     );
-  
-   genvar m,n;
-   
-   wire [(NUM_INPUTS*NUM_OUTPUTS)-1:0] forward_valid_in;
-   wire [(NUM_INPUTS*NUM_OUTPUTS)-1:0] forward_ack_in;
-   wire [(NUM_INPUTS*NUM_OUTPUTS)-1:0] forward_valid_out;
-   wire [(NUM_INPUTS*NUM_OUTPUTS)-1:0] forward_ack_out;
-   
-   wire [NUM_INPUTS-1:0] i_tready_slave [0:NUM_OUTPUTS-1];
-
-   //
-   // Instantiate an axi_slave_mux for every slave/output of the Crossbar switch.
-   // Each axi_slave_mux contains logic to maux and resolve arbitration
-   // for this particular slave/output.
-   //
-   
-   generate
-      for (m = 0; m < NUM_OUTPUTS; m = m + 1) begin: instantiate_slave_mux
-
-	 wire [NUM_INPUTS-1:0] i_tready_tmp;
-	 
-	 axi_slave_mux 	
-	   #(
-	     .FIFO_WIDTH(FIFO_WIDTH),     // AXI4-STREAM data bus width
-	     .DST_WIDTH(DST_WIDTH),  // Width of DST field we are routing on.
-	     .NUM_INPUTS(NUM_INPUTS)  // number of input AXI buses
-	     ) 	axi_slave_mux_i
-	     (
-	      .clk(clk),
-	      .reset(reset),
-	      .clear(clear),
-	      // Inputs
-	      .i_tdata(i_tdata),
-	      .i_tvalid(i_tvalid),
-	      .i_tlast(i_tlast),
-	      .i_tready(i_tready_tmp),
-	      // Forwarding flags (One from each Input/Master)
-	      .forward_valid(forward_valid_in[(m+1)*NUM_INPUTS-1:m*NUM_INPUTS]),
-	      .forward_ack(forward_ack_out[(m+1)*NUM_INPUTS-1:m*NUM_INPUTS]),
-	      // Output
-	      .o_tdata(o_tdata[(m*FIFO_WIDTH)+FIFO_WIDTH-1:m*FIFO_WIDTH]),
-	      .o_tvalid(o_tvalid[m]),
-	      .o_tlast(o_tlast[m]),
-	      .o_tready(o_tready[m])
-	      );
-    
-	 if (m==0)
-	       assign i_tready_slave[0] = i_tready_tmp;
-	 else
-	      assign i_tready_slave[m] = i_tready_tmp | i_tready_slave[m-1] ;
-	 
-      end // block: instantiate_slave_mux
-   endgenerate
-
-   assign 	  i_tready = i_tready_slave[NUM_OUTPUTS-1];
-
-   //
-   // Permute the forwarding flag buses
-   //
-   
-   generate
-      for (m = 0; m < NUM_OUTPUTS; m = m + 1) begin: permute_outer
-	 for (n = 0; n < NUM_INPUTS; n = n + 1) begin: permute_inner
-	    assign forward_valid_in[n*NUM_OUTPUTS+m] = forward_valid_out[n+m*NUM_INPUTS];
-	    assign forward_ack_in[n+m*NUM_INPUTS] = forward_ack_out[n*NUM_OUTPUTS+m];
-	 end
-      end
-      
-   endgenerate
-	     
-      
-   //
-   // Instantiate an axi_forwarding_cam for every Input/Master of the Crossbar switch.
-   // Each contains a TCAM like lookup that allocates an egress port.
-   //
-
-   wire [31:0] 	   rb_data_mux[0:NUM_INPUTS-1];
-   
-   generate
-      for (m = 0; m < NUM_INPUTS; m = m + 1) begin: instantiate_cam
-	 axi_forwarding_cam 
-	   #(
-	     .BASE(0),
-	     .WIDTH(FIFO_WIDTH),  // Bit width of FIFO word.
-	     .NUM_OUTPUTS(NUM_OUTPUTS)
-	     ) axi_forwarding_cam_i
-	     (
-	      .clk(clk),
-	      .reset(reset),
-	      .clear(clear),
-	      // Monitored FIFO signals
-	      .o_tdata(i_tdata[(m*FIFO_WIDTH)+FIFO_WIDTH-1:m*FIFO_WIDTH]),
-	      .o_tvalid(i_tvalid[m]),
-	      .o_tready(i_tready[m]),
-	      .o_tlast(i_tlast[m]),
-	      .pkt_present(pkt_present[m]),
-	      // Configuration
-	      .local_addr(local_addr),
-	      // Setting Bus 
-	      .set_stb(set_stb),
-	      .set_addr(set_addr),
-	      .set_data(set_data),
-	      // Header signals
-	      .forward_valid(forward_valid_out[(m+1)*NUM_OUTPUTS-1:m*NUM_OUTPUTS]), 
-	      .forward_ack(forward_ack_in[(m+1)*NUM_OUTPUTS-1:m*NUM_OUTPUTS]),
-	      // Readback bus
-	      .rb_rd_stb(rb_rd_strobe && (rb_addr[`LOG2(NUM_OUTPUTS)+`LOG2(NUM_INPUTS)-1:`LOG2(NUM_OUTPUTS)] == m)),
-	      .rb_addr(rb_addr[`LOG2(NUM_OUTPUTS)-1:0]),
-	      .rb_data(rb_data_mux[m])
-	      );
-      end // block: instantiate_fifo_header
-   endgenerate
-
-   assign rb_data = rb_data_mux[rb_addr[`LOG2(NUM_OUTPUTS)+`LOG2(NUM_INPUTS)-1:`LOG2(NUM_OUTPUTS)]]; 
-   
-
-endmodule // axi_crossbar
diff --git a/fpga/usrp3/lib/control/axi_crossbar_tb.v b/fpga/usrp3/lib/control/axi_crossbar_tb.v
deleted file mode 100644
index 1994cb352..000000000
--- a/fpga/usrp3/lib/control/axi_crossbar_tb.v
+++ /dev/null
@@ -1,214 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-
-`timescale  1 ps / 1 ps
-
-module axi_crossbar_tb;
-
-
-   localparam STREAM_WIDTH = 64;
-   
-   // Currently support simulations upto 8x8 configurations
-   localparam MAX_NUM_INPUTS = 8;
-   localparam MAX_NUM_OUTPUTS = 8;
-   
-   wire [(MAX_NUM_INPUTS*STREAM_WIDTH)-1:0] i_tdata;
-   wire [STREAM_WIDTH-1:0] 		i_tdata_array [0:MAX_NUM_INPUTS-1];   
-   wire [MAX_NUM_INPUTS-1:0] 		i_tvalid;
-   wire [MAX_NUM_INPUTS-1:0] 		i_tready;
-   wire [MAX_NUM_INPUTS-1:0] 		i_tlast;
-   wire [MAX_NUM_INPUTS-1:0] 		pkt_present;
-   
-   reg [STREAM_WIDTH-1:0] 		data_in [0:MAX_NUM_INPUTS-1];   
-   reg [MAX_NUM_INPUTS-1:0] 		valid_in;
-   wire [MAX_NUM_INPUTS-1:0] 		ready_in;
-   reg [MAX_NUM_INPUTS-1:0] 		last_in;
-   
-   wire [(MAX_NUM_OUTPUTS*STREAM_WIDTH)-1:0] o_tdata;
-   wire [STREAM_WIDTH-1:0] 		 o_tdata_array [0:MAX_NUM_OUTPUTS-1];   
-   wire [MAX_NUM_OUTPUTS-1:0] 		 o_tvalid;
-   wire [MAX_NUM_OUTPUTS-1:0] 		 o_tready;
-   wire [MAX_NUM_OUTPUTS-1:0] 		 o_tlast;
-   
-
-   wire [STREAM_WIDTH-1:0] 		 data_out [0:MAX_NUM_OUTPUTS-1];   
-   wire [MAX_NUM_OUTPUTS-1:0] 		 valid_out;
-   reg [MAX_NUM_OUTPUTS-1:0] 		 ready_out; 
-   wire [MAX_NUM_OUTPUTS-1:0] 		 last_out;
-		 
-   
-   genvar 				 m;
-
-   reg 					 clk;
-   reg 					 reset;
-   reg 					 clear;
-   reg 					 set_stb;
-   reg [15:0] 				 set_addr;
-   reg [31:0] 				 set_data;
-   
-  // reg 					 reset;
-
-   //
-   // Simulation specific testbench is included here
-   //
-`include "task_library.v"
-`include "simulation_script.v"
-
-   
-   //
-   // Define Clocks
-   //
-   initial begin
-      clk = 1'b1;
-   end
-   
-   // 125MHz clock
-   always #4000 clk = ~clk;
-
-   //
-   // Good starting state
-   //
-     initial begin
-	reset <= 0;
-	clear <= 0;
-	set_stb <= 0;
-	set_addr <= 0;
-	set_data <= 0;
-/* -----\/----- EXCLUDED -----\/-----
-	data_in[0] <= 0;
-	valid_in[0] <= 0;
-	last_in[0] <= 0;
-	
-	data_in[1] <= 0;
-	valid_in[1] <= 0;
-	last_in[1] <= 0;
- -----/\----- EXCLUDED -----/\----- */
-	
-	
-     end
-
-  
-
-   //
-   // AXI Crossbar instance
-   //
-   localparam SR_AWIDTH = 16;
-   localparam SR_XB_LOCAL = 512;
-   
-   wire [7:0] local_addr;
-
-   setting_reg #(.my_addr(SR_XB_LOCAL), .awidth(SR_AWIDTH), .width(8)) sr_local_addr
-     (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
-      .in(set_data),.out(local_addr),.changed());
-   
-   axi_crossbar
-     #(
-       .FIFO_WIDTH(STREAM_WIDTH),   // AXI4-STREAM data bus width
-       .DST_WIDTH(16),    // Width of DST field we are routing on.
-       .NUM_INPUTS(NUM_INPUTS),    // number of input AXI4-STREAM buses
-       .NUM_OUTPUTS(NUM_OUTPUTS)    // number of output AXI4-STREAM buses
-       ) axi_crossbar_i
-       (
-	.clk(clk),
-	.reset(reset),
-	.clear(clear),
-	.local_addr(local_addr),
-	// Inputs
-	.i_tdata(i_tdata[(NUM_INPUTS*STREAM_WIDTH)-1:0]),
-	.i_tvalid(i_tvalid[NUM_INPUTS-1:0]),
-	.i_tlast(i_tlast[NUM_INPUTS-1:0]),
-	.i_tready(i_tready[NUM_INPUTS-1:0]),
-	.pkt_present(pkt_present[NUM_INPUTS-1:0]),
-	 // Settings bus
-	.set_stb(set_stb),
-	.set_addr(set_addr),
-	.set_data(set_data),
-	// Output
-	.o_tdata(o_tdata[(NUM_OUTPUTS*STREAM_WIDTH)-1:0]),
-	.o_tvalid(o_tvalid[NUM_OUTPUTS-1:0]),
-	.o_tlast(o_tlast[NUM_OUTPUTS-1:0]),
-	.o_tready(o_tready[NUM_OUTPUTS-1:0]),
-	// Readback Bus
-	.rb_rd_stb(1'b0),
-	.rb_addr(0),
-	.rb_data()
-	);
-
-   //
-   // Input FIFOs
-   //
-   generate
-      for (m=0;m<NUM_INPUTS;m=m+1)
-	begin: input_fifos
-
-	   assign i_tdata[(STREAM_WIDTH*m)+STREAM_WIDTH-1:STREAM_WIDTH*m] = i_tdata_array[m];
-	   
-	   axi_fifo_short
-	     #(.WIDTH(STREAM_WIDTH+1)) axi_fifo_short_in
-	       (
-		.clk(clk), 
-		.reset(reset), 
-		.clear(clear),
-		.o_tdata({i_tlast[m],i_tdata_array[m]}),
-		.o_tvalid(i_tvalid[m]),
-		.o_tready(i_tready[m]),
-		.i_tdata({last_in[m],data_in[m]}),
-		.i_tvalid(valid_in[m]),
-		.i_tready(ready_in[m]),
-		.space(),
-		.occupied()
-		);
-
-	   monitor_axi_fifo
-	     #(
-	       .COUNT_BITS(8)
-	       )  monitor_axi_fifo_in
-	       (
-		.clk(clk),
-		.reset(reset),
-		.clear(clear),
-		// Monitored FIFO signals
-		.i_tvalid(valid_in[m]),
-		.i_tready(ready_in[m]),
-		.i_tlast(last_in[m]),
-		.o_tvalid(i_tvalid[m]),
-		.o_tready(i_tready[m]),
-		.o_tlast(i_tlast[m]),
-		// FIFO status output
-		.pkt_present(pkt_present[m]), // Flags any whole packets present
-		.pkt_count()
-		);
-	   
-	end
-   endgenerate
-   
-	   
-   //
-   // Output FIFO's
-   //
-   generate
-      for (m=0;m<NUM_OUTPUTS;m=m+1)
-	begin: output_fifos
-
-	   assign o_tdata_array[m] = o_tdata[(STREAM_WIDTH*m)+STREAM_WIDTH-1:STREAM_WIDTH*m];	   
-   
-	   axi_fifo_short 
-	     #(.WIDTH(STREAM_WIDTH+1)) axi_fifo_short_out
-	       (
-		.clk(clk), 
-		.reset(reset), 
-		.clear(clear),
-		.i_tdata({o_tlast[m],o_tdata_array[m]}),
-		.i_tvalid(o_tvalid[m]),
-		.i_tready(o_tready[m]),
-		.o_tdata({last_out[m],data_out[m]}),
-		.o_tvalid(valid_out[m]),
-		.o_tready(ready_out[m]),
-		.space(),
-		.occupied()
-		);
-	end
-   endgenerate // block: output_fifos
-
-endmodule // axi_crossbar_tb
diff --git a/fpga/usrp3/lib/control/axi_fifo_header.v b/fpga/usrp3/lib/control/axi_fifo_header.v
deleted file mode 100644
index ceac8e324..000000000
--- a/fpga/usrp3/lib/control/axi_fifo_header.v
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-
-
-//
-// This module is connected to the output port of an AXI4-STREAM FIFO that is used to move packetized data.
-// It extracts and indicates the header (first word) of a packet in the FIFO. The header and flag are pipelined
-// for timing closure.
-//
-
-module axi_fifo_header
-  #(
-    parameter WIDTH=64  // Bit width of FIFO word.
-    )
-    (
-     input clk,
-     input reset,
-     input clear,
-     // Monitored FIFO signals
-     input [WIDTH-1:0] o_tdata,
-     input o_tvalid,
-     input o_tready,
-     input o_tlast,
-     input pkt_present,
-     // Header signals
-     output reg [WIDTH-1:0] header,
-     output reg header_valid
-     );
-
-   localparam WAIT_SOF = 0;
-   localparam WAIT_EOF = 1;
-   
-   reg 	    out_state;
-   
-
-    //
-    // Monitor packets leaving FIFO
-    //
-    always @(posedge clk)
-      if (reset | clear) begin
-         out_state <= WAIT_SOF;
-      end else
-	case(out_state)
-	  //
-	  // After RESET or the EOF of previous packet, the first cycle with
-	  // output valid asserted is the SOF and presents the Header word.
-	  // The cycle following the concurrent presentation of asserted output 
-	  // valid and output ready presents the word following the header.
-	  //
-          WAIT_SOF: 
-            if (o_tvalid && o_tready) begin
-               out_state <= WAIT_EOF;
-            end else begin
-               out_state <= WAIT_SOF;
-            end
-	  //
-	  // EOF is signalled by o_tlast asserted whilst output valid and ready asserted.
-	  //
-          WAIT_EOF: 
-            if (o_tlast && o_tvalid && o_tready) begin
-               out_state <= WAIT_SOF;
-            end else begin
-               out_state <= WAIT_EOF;
-            end
-	endcase // case(in_state)
-   
-   //
-   // Pipeline Header signals
-   //
-   always @(posedge clk)
-     if (reset | clear) begin
-	header <= 0;
-	header_valid <= 0;
-     end else if (o_tvalid && (out_state == WAIT_SOF) && pkt_present) begin
-	// Header will remian valid until o_tready is asserted as this will cause a state transition.
-	header <= o_tdata;
-	header_valid <= 1;
-     end else begin
-	header_valid <= 0;
-     end
-
-
-endmodule // axi_fifo_header
diff --git a/fpga/usrp3/lib/control/axi_forwarding_cam.v b/fpga/usrp3/lib/control/axi_forwarding_cam.v
deleted file mode 100644
index 2f28b5640..000000000
--- a/fpga/usrp3/lib/control/axi_forwarding_cam.v
+++ /dev/null
@@ -1,232 +0,0 @@
-//
-// Copyright 2013 Ettus Research LLC
-//
-
-
-//
-// This module implements a highly customized TCAM that enbales forwarding
-// decisions to be made on a 16bit field from a VITA SID field.
-// The 16bits are allocated by convention as 8 bits of Network address
-// (Addresses USRP's etc) and 8 bits of Host address (adresses endpoints in
-// a USRP). By definition if the DEST field in the SID addresses a different
-// USRP than this one then we don't care about the Host field, only the Network Field.
-// We only look at the Host Field when the Network field addresses us.
-// Thus Need TCAM of 256+256 entries with Log2(N) bits, where N is the number of
-// slave(output) ports on the crossbar switch.
-//
-//
-//
-// SID format:
-//
-// |--------|---------|--------|---------|
-// |      SOURCE      |  DEST  |  DEST   |
-// |      ADDRESS     | NETWORK|  HOST   |
-// |--------|---------|--------|---------|
-//     8         8         8        8
-//
-
-
-`define LOG2(N) (\
-                 N < 2 ? 0 : \
-                 N < 4 ? 1 : \
-                 N < 8 ? 2 : \
-                 N < 16 ? 3 : \
-                 N < 32 ? 4 : \
-                 N < 64 ? 5 : \
-		 N < 128 ? 6 : \
-		 N < 256 ? 7 : \
-		 N < 512 ? 8 : \
-		 N < 1024 ? 9 : \
-                 10)
-
-module axi_forwarding_cam
-  #(
-    parameter BASE = 0,      // BASE address for setting registers in this block. (512 addrs used)
-    parameter WIDTH=64,      // Bit width of FIFO word.
-    parameter NUM_OUTPUTS=2  // Number of outputs (destinations) in crossbar.
-    )
-    (
-     input 			  clk,
-     input 			  reset,
-     input 			  clear,
-     // Monitored FIFO signals
-     input [WIDTH-1:0] 		  o_tdata,
-     input 			  o_tvalid,
-     input 			  o_tready,
-     input 			  o_tlast,
-     input 			  pkt_present,
-     // Configuration
-     input [7:0] 		  local_addr,
-     // Setting Bus 
-     input 			  set_stb,
-     input [15:0] 		  set_addr,
-     input [31:0] 		  set_data,
-     // Forwarding Flags
-     output reg [NUM_OUTPUTS-1:0] forward_valid,
-     input [NUM_OUTPUTS-1:0] 	  forward_ack,
-     // readback bus
-     input                        rb_rd_stb,
-     input [`LOG2(NUM_OUTPUTS)-1:0] rb_addr,
-     output [31:0]                rb_data
-     );
-
-
-   localparam WAIT_SOF = 0;
-   localparam WAIT_EOF = 1;
-   reg 				  state;
-   
-   localparam IDLE = 0;
-   localparam FORWARD = 1;
-   localparam WAIT = 2;
-   
-   reg 	[1:0]			  demux_state;
-
-   reg [15:0] 			  dst;
-   reg 				  dst_valid, dst_valid_reg;
-   wire 			  local_dst;
-   wire [8:0] 			  read_addr;
-   
-   //
-   // Monitor packets leaving FIFO
-   //
-   always @(posedge clk)
-     if (reset | clear) begin
-        state <= WAIT_SOF;
-     end else
-       case(state)
-	 //
-	 // After RESET or the EOF of previous packet, the first cycle with
-	 // output valid asserted is the SOF and presents the Header word.
-	 // The cycle following the concurrent presentation of asserted output 
-	 // valid and output ready presents the word following the header.
-	 //
-         WAIT_SOF: 
-           if (o_tvalid && o_tready) begin
-              state <= WAIT_EOF;
-           end else begin
-              state <= WAIT_SOF;
-           end
-	 //
-	 // EOF is signalled by o_tlast asserted whilst output valid and ready asserted.
-	 //
-         WAIT_EOF: 
-           if (o_tlast && o_tvalid && o_tready) begin
-              state <= WAIT_SOF;
-           end else begin
-              state <= WAIT_EOF;
-           end
-       endcase // case(in_state)  
-   
-   //
-   // Extract Destination fields(s) from SID
-   //
-   always @(posedge clk)
-     if (reset | clear) begin
-	dst <= 0;
-	dst_valid <= 0;
-	dst_valid_reg <= 0;	
-     end else if (o_tvalid && (state == WAIT_SOF) && pkt_present) begin
-	// SID will remain valid until o_tready is asserted as this will cause a state transition.
-	dst <= o_tdata[15:0]; 
-	dst_valid <= 1;
-	dst_valid_reg <= dst_valid;	
-     end else begin
-	dst_valid <= 0;
-	dst_valid_reg <= dst_valid;
-     end
-
-   //
-   // Is Network field in DST our local address?
-   //
-   assign local_dst = (dst[15:8] == local_addr) && dst_valid;
-   
-
-   //
-   // Mux address to RAM so that it searches CAM for Network field or Host field.
-   // Network addresses are stored in the lower 256 locations, host addresses the upper 256.
-   //
-   assign read_addr = {local_dst,(local_dst ? dst[7:0] : dst[15:8])};
-
-   //
-   // Imply a block RAM here, 512xCeil(Log2(NUM_OUTPUTS))
-   //
-   //synthesis attribute ram_style of mem is block
-   reg [(`LOG2(NUM_OUTPUTS))-1 : 0] mem [0:511];
-   reg [8:0] 			   read_addr_reg;
-   wire 			   write;
-   wire [`LOG2(NUM_OUTPUTS)-1:0] 	   read_data;
-   
-   assign write = (set_addr[15:9] == (BASE >>9)) && set_stb; // Addr decode.
-   
-   always @(posedge clk) 
-     begin
-	read_addr_reg <= read_addr;
-
-	if (write) begin
-	   mem[set_addr[8:0]] <= set_data[`LOG2(NUM_OUTPUTS)-1:0];
-	end
-
-     end
-
-   assign read_data = mem[read_addr_reg];
-
-
-   //
-   // State machine to manage forwarding flags.
-   //
-    always @(posedge clk)
-     if (reset | clear) begin
-        demux_state <= IDLE;
-     end else
-       case(demux_state)
-	
-	 // Wait for Valid DST which indicates a new packet lookup in the CAM.
-	 IDLE: begin
-	    if (dst_valid_reg == 1) begin
-	       forward_valid <= 1 << read_data;
-	       demux_state <= FORWARD;
-	    end
-	 end
-	 // When Slave/Output thats forwarding ACK's the forward flag, clear request and wait for packet to be transfered
-	 FORWARD: begin
-	    if ((forward_ack & forward_valid) != 0) begin
-	       forward_valid <= 0;
-	       demux_state <= WAIT;
-	    end
-	 end
-	 // When packet transfered go back to idle.
-	 WAIT: begin
-	    if (forward_ack == 0)
-	      demux_state <= IDLE;
-	 end
-
-       endcase // case (demux_state)
-
-   //
-   // Compile forwarding statistics
-   // (This uses a lot of registers!)
-   //
-   genvar m;
-   reg [31:0] statistics [0:NUM_OUTPUTS-1];
-   
-   generate
-      for (m = 0; m < NUM_OUTPUTS; m = m + 1) begin: generate_stats
-	 always @(posedge clk)
-	   if (reset | clear) 
-	     statistics[m] <= 0;
-	   else if ((rb_addr == m) && rb_rd_stb)
-	     statistics[m] <= 0;
-	   else if (forward_ack[m] & forward_valid[m])
-	     statistics[m] <= statistics[m] + 1;
-         end
-      endgenerate
-   
-   assign rb_data = statistics[rb_addr];
-   	
-	  
-endmodule
-    
-	      
-	    
-   
-   
diff --git a/fpga/usrp3/lib/control/axi_slave_mux.v b/fpga/usrp3/lib/control/axi_slave_mux.v
deleted file mode 100644
index 1a307aba5..000000000
--- a/fpga/usrp3/lib/control/axi_slave_mux.v
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-
-
-   
-
-`define LOG2(N) (\
-                 N < 2 ? 0 : \
-                 N < 4 ? 1 : \
-                 N < 8 ? 2 : \
-                 N < 16 ? 3 : \
-                 N < 32 ? 4 : \
-                 N < 64 ? 5 : \
-		 N < 128 ? 6 : \
-		 N < 256 ? 7 : \
-		 N < 512 ? 8 : \
-		 N < 1024 ? 9 : \
-                 10)
-
-
-module axi_slave_mux
-  #(
-    parameter FIFO_WIDTH = 64, // AXI4-STREAM data bus width
-    parameter DST_WIDTH = 16,  // Width of DST field we are routing on.
-    parameter NUM_INPUTS = 2   // number of input AXI buses
-    )
-    (
-     input 				 clk,
-     input 				 reset,
-     input 				 clear,
-     // Inputs
-     input [(FIFO_WIDTH*NUM_INPUTS)-1:0] i_tdata,
-     input [NUM_INPUTS-1:0] 		 i_tvalid,
-     input [NUM_INPUTS-1:0] 		 i_tlast,
-     output [NUM_INPUTS-1:0] 		 i_tready,
-     // Forwarding Flags
-     input [NUM_INPUTS-1:0] 		 forward_valid,
-     output reg [NUM_INPUTS-1:0] 	 forward_ack,
-     // Output
-     output [FIFO_WIDTH-1:0] 		 o_tdata,
-     output 				 o_tvalid,
-     output 				 o_tlast,
-     input 				 o_tready
-     );
-
-   wire [FIFO_WIDTH-1:0] i_tdata_array [0:NUM_INPUTS-1];
-   
-   reg [`LOG2(NUM_INPUTS):0] select;
-   reg 			     enable;
-
-
-   reg 			     state;
-
-   localparam CHECK_THIS_INPUT = 0;
-   localparam WAIT_LAST = 1;
-   
-
-   always @(posedge clk)
-     if (reset | clear) begin
-	state <= CHECK_THIS_INPUT;
-	select <= 0;
-	enable <= 0;
-	forward_ack <= 0;	
-     end else begin
-	case(state)
-	  // Is the currently selected input addressing this slave with a ready packet?
-	  CHECK_THIS_INPUT:  begin
-	     if (forward_valid[select]) begin
-		enable <= 1;
-		forward_ack[select] <= 1;
-		state <= WAIT_LAST;
-	     end else if (select == NUM_INPUTS - 1 ) begin
-		select <= 0;
-	     end else begin
-		select <= select + 1;
-	     end
-	  end
-	  // Assert ACK immediately to forwarding logic and then wait for end of packet.
-	  WAIT_LAST: begin
-	    
-	     if (i_tlast[select] && i_tvalid[select] && o_tready) begin
-		if (select == NUM_INPUTS - 1 ) begin
-		   select <= 0;
-		end else begin
-		   select <= select + 1;
-		end
-		state <= CHECK_THIS_INPUT;
-		forward_ack <= 0;
-		enable <= 0;
-	     end else begin
-		forward_ack[select] <= 1;
-		enable <= 1;
-	     end
-	  end
-	endcase // case(state)
-     end
-	
-   //
-   // Combinatorial mux
-   //
-   genvar m;
-     
-   generate
-      for (m = 0; m < NUM_INPUTS; m = m + 1) begin: form_buses
-	 assign i_tdata_array[m] = i_tdata[(m*FIFO_WIDTH)+FIFO_WIDTH-1:m*FIFO_WIDTH];
-      end
-   endgenerate
-
-   assign 	o_tdata = i_tdata_array[select];
-   assign 	o_tvalid = enable && i_tvalid[select];
-   assign 	o_tlast = enable && i_tlast[select];
- //  assign 	i_tready = {NUM_INPUTS{o_tready}} & (enable << select);
-
-   generate
-      for (m = 0; m < NUM_INPUTS; m = m + 1) begin: form_ready
-	 assign i_tready[m] = o_tready && enable && (select == m);
-      end
-   endgenerate
-
-    
-endmodule // axi_slave_mux
diff --git a/fpga/usrp3/lib/control/axi_test_vfifo.v b/fpga/usrp3/lib/control/axi_test_vfifo.v
deleted file mode 100644
index a436e9c55..000000000
--- a/fpga/usrp3/lib/control/axi_test_vfifo.v
+++ /dev/null
@@ -1,139 +0,0 @@
-//
-// Test Virtual FIFO's by streaming modulo 2^32 counter (replicated in upper
-// and lower 32bits). Test result by tracking count on receive and using 
-// sticky flag for error indication.
-// Also provide signal from MSB of 32bit count to blink LED.
-//
-
-module axi_test_vfifo
-  #(parameter PACKET_SIZE = 128)
-   (
-    input aclk,
-    input aresetn,
-    input enable,
-    // AXI Stream Out
-    output reg out_axis_tvalid,
-    input out_axis_tready,
-    output [63 : 0] out_axis_tdata,
-    output reg [7 : 0] out_axis_tstrb,
-    output reg [7 : 0] out_axis_tkeep,
-    output reg out_axis_tlast,
-    output reg [0 : 0] out_axis_tid,
-    output reg [0 : 0] out_axis_tdest,
-    input vfifo_full,
-    // AXI Stream In
-    input in_axis_tvalid,
-    output reg in_axis_tready,
-    input [63 : 0] in_axis_tdata,
-    input [7 : 0] in_axis_tstrb,
-    input [7 : 0] in_axis_tkeep,
-    input in_axis_tlast,
-    input [0 : 0] in_axis_tid,
-    input [0 : 0] in_axis_tdest,
-    // Flags
-    output reg flag_error,
-    output heartbeat_in,
-    output heartbeat_out,
-    output [31:0] expected_count
-    );
-   
-
-   reg [31:0] 	  out_count;
-   reg [31:0] 	  in_count;
-   reg [63:0] 	  in_axis_tdata_reg;
-   reg 		  in_data_valid;
-   
-
-
-   //
-   // Output 
-   //
-   always @(posedge aclk)
-     if (!aresetn) begin
-	out_count <= 0;
-	out_axis_tvalid <= 0;
-	out_axis_tid <= 0; // Don't care.
-	out_axis_tdest <= 0; // Only use port 0 of VFIFO.
-	out_axis_tstrb <= 0;  // Unused in VFIFO
-	out_axis_tkeep <= 8'hFF; // Always use every byte of data
-	out_axis_tlast <= 1'b0;
-     end else if (enable) begin
-	if (~vfifo_full) begin
-	   // Always ready to output new count value.
-	   out_axis_tvalid <= 1;
-	   if (out_axis_tready) 
-	     out_count <= out_count + 1;
-	   // Assert TLAST every PACKET_SIZE beats.
-	   if (out_count[15:0] == PACKET_SIZE)
-	     out_axis_tlast <= 1'b1;
-	   else
-	     out_axis_tlast <= 1'b0;
-	end else begin
-	   out_axis_tvalid <= 0;
-	end
-     end else begin
-	out_axis_tlast <= 1'b0;	
-	out_axis_tvalid <= 0;
-     end
-
-   assign out_axis_tdata = {out_count,out_count};
-
-   assign heartbeat_out = out_count[28];
-   
-
-   //
-   // Input (Ignore TLAST signal)
-   //
-   always @(posedge aclk)
-     if (!aresetn) begin
-	in_axis_tready <= 0;
-	in_axis_tdata_reg <= 0;
-	in_data_valid <= 0;
-	
-     end else if (enable) begin
-	in_axis_tready <= 1;
-	in_axis_tdata_reg <= in_axis_tdata;
-	if (in_axis_tvalid) 
-	  in_data_valid <= 1;
-	else
-	  in_data_valid <= 0;
-     end else begin
-	in_data_valid <= 0;
-	in_axis_tready <= 0;
-     end // else: !if(enable)
-   
-   	  
-   assign heartbeat_in = in_count[28];
-   
-   //
-   // Input Checker
-   //
-   always @(posedge aclk)
-     if (!aresetn) begin
-	in_count <= 0;
-	flag_error <= 0;
-     end else if (enable) begin
-	if (in_data_valid) begin
-	   
-	   if ((in_axis_tdata_reg[63:32] != in_count) || (in_axis_tdata_reg[31:0] != in_count))
-	     begin
-		flag_error <= 1;
-		in_count <= in_axis_tdata_reg[63:32] + 1;
-	     end
-	   else
-	     begin
-		flag_error <= 0;
-		in_count <= in_count + 1;
-	     end
-	   
-	end
-     end
-
-   assign expected_count = in_count;
-   
-
-endmodule // axi_test_vfifo
-
-
-   
-   
diff --git a/fpga/usrp3/lib/control/binary_encoder.v b/fpga/usrp3/lib/control/binary_encoder.v
deleted file mode 100644
index e13a8174b..000000000
--- a/fpga/usrp3/lib/control/binary_encoder.v
+++ /dev/null
@@ -1,42 +0,0 @@
-
-`define LOG2(N) (\
-                 N < 2 ? 0 : \
-                 N < 4 ? 1 : \
-                 N < 8 ? 2 : \
-                 N < 16 ? 3 : \
-                 N < 32 ? 4 : \
-                 N < 64 ? 5 : \
-		 N < 128 ? 6 : \
-		 N < 256 ? 7 : \
-		 N < 512 ? 8 : \
-		 N < 1024 ? 9 : \
-                 10)
-  
-  module binary_encoder
-    #(
-      parameter SIZE = 16
-      )
-      (
-       input [SIZE-1:0] in,
-       output [`LOG2(SIZE)-1:0] out
-       );
-   
-  genvar m,n;
-   
-   generate
-      // Loop enough times to represent the total number of input bits as an encoded value
-      for (m = 0; m <= `log2(SIZE-1); m = m + 1)  begin: expand_or_tree
-	 wire [SIZE-1:0] encoding;
-	 // Build enable mask by iterating through every input bit.
-	 for (n = 0; n < SIZE ; n = n + 1) begin: encode_this_bit
-	    assign encoding[n] = n[m];
-	 end
-	 // OR tree for this output bit with appropraite bits enabled.
-	 assign    out[m] = |(encoding & in);
-      end
-   endgenerate
-endmodule // binary_encoder
-
-   
-
-			
\ No newline at end of file
diff --git a/fpga/usrp3/lib/control/cvita_uart.v b/fpga/usrp3/lib/control/cvita_uart.v
deleted file mode 100644
index cbb272fc2..000000000
--- a/fpga/usrp3/lib/control/cvita_uart.v
+++ /dev/null
@@ -1,164 +0,0 @@
-
-//
-// Copyright 2013 Ettus Research LLC
-//
-
-
-//create a compressed vita based uart data interface
-
-module cvita_uart
-#(
-    parameter SIZE = 0
-)
-(
-    //clocking interface
-    input clk, input rst,
-
-    //uart interface
-    input rxd, output txd,
-
-    //chdr fifo input
-    input [63:0] i_tdata,
-    input i_tlast,
-    input i_tvalid,
-    output i_tready,
-
-    //chdr fifo output
-    output [63:0] o_tdata,
-    output o_tlast,
-    output o_tvalid,
-    input o_tready
-);
-
-    reg [31:0] sid;
-
-    //baud clock divider
-    reg [15:0] clkdiv;
-
-    //hold rx in disable until a tx event
-    reg rxd_enable;
-
-    //==================================================================
-    //== RXD capture and packet generation interface
-    //==================================================================
-    wire [7:0] rx_char;
-    wire fifo_empty;
-    wire fifo_read;
-    reg [11:0] seqnum;
-    wire pgen_trigger;
-    wire pgen_done;
-
-    //rx uart capture
-    simple_uart_rx #(.SIZE(SIZE)) simple_uart_rx
-    (
-        .clk(clk), .rst(rst),
-        .fifo_out(rx_char), .fifo_read(fifo_read), .fifo_level(), .fifo_empty(fifo_empty),
-        .clkdiv(clkdiv), .rx(rxd)
-    );
-
-    //packet generation - holds rx character
-    context_packet_gen context_packet_gen
-    (
-        .clk(clk), .reset(rst), .clear(1'b0),
-        .trigger(pgen_trigger),
-        .seqnum(seqnum),
-        .sid({sid[15:0], sid[31:16]}),
-        .body({56'b0, rx_char}),
-        .vita_time(64'b0),
-
-        .done(pgen_done),
-        .o_tdata(o_tdata), .o_tlast(o_tlast), .o_tvalid(o_tvalid), .o_tready(o_tready)
-    );
-
-    //state machine to manage pgen and rx uart
-    reg [1:0] rxd_state;
-    localparam RXD_STATE_RECV_CHAR = 0;
-    localparam RXD_STATE_PGEN_TRIG = 1;
-    localparam RXD_STATE_WAIT_DONE = 2;
-    localparam RXD_STATE_READ_FIFO = 3;
-
-    always @(posedge clk) begin
-        if (rst) begin
-            seqnum <= 12'b0;
-            rxd_state <= RXD_STATE_RECV_CHAR;
-        end
-        else case (rxd_state)
-
-        RXD_STATE_RECV_CHAR: begin
-            if (!fifo_empty && rxd_enable) rxd_state <= RXD_STATE_PGEN_TRIG;
-        end
-
-        RXD_STATE_PGEN_TRIG: begin
-            rxd_state <= RXD_STATE_WAIT_DONE;
-        end
-
-        RXD_STATE_WAIT_DONE: begin
-            if (pgen_done) rxd_state <= RXD_STATE_READ_FIFO;
-        end
-
-        RXD_STATE_READ_FIFO: begin
-            rxd_state <= RXD_STATE_RECV_CHAR;
-            seqnum <= seqnum + 1'b1;
-        end
-
-        endcase //rxd_state
-    end
-
-    assign fifo_read = (rxd_state == RXD_STATE_READ_FIFO) || (!rxd_enable);
-    assign pgen_trigger = (rxd_state == RXD_STATE_PGEN_TRIG);
-
-    //==================================================================
-    //== TXD generation and packet control interface
-    //==================================================================
-    wire [7:0] tx_char;
-    wire fifo_write;
-    wire fifo_full;
-
-    simple_uart_tx #(.SIZE(SIZE)) simple_uart_tx
-    (
-        .clk(clk), .rst(rst),
-        .fifo_in(tx_char), .fifo_write(fifo_write), .fifo_level(), .fifo_full(fifo_full),
-        .clkdiv(clkdiv), .baudclk(), .tx(txd)
-    );
-
-    //state machine to manage control and tx uart
-    reg [1:0] txd_state;
-    localparam TXD_STATE_RECV_CHDR = 0;
-    localparam TXD_STATE_RECV_TIME = 1;
-    localparam TXD_STATE_RECV_BODY = 2;
-    localparam TXD_STATE_DROP_FIFO = 3;
-
-    always @(posedge clk) begin
-        if (rst) begin;
-            txd_state <= TXD_STATE_RECV_CHDR;
-            rxd_enable <= 1'b0;
-        end
-        if (i_tvalid && i_tready) case (txd_state)
-
-        TXD_STATE_RECV_CHDR: begin
-            txd_state <= (i_tdata[61])? TXD_STATE_RECV_TIME : TXD_STATE_RECV_BODY;
-            sid <= i_tdata[31:0];
-        end
-
-        TXD_STATE_RECV_TIME: begin
-            txd_state <= TXD_STATE_RECV_BODY;
-        end
-
-        TXD_STATE_RECV_BODY: begin
-            txd_state <= (i_tlast)? TXD_STATE_RECV_CHDR : TXD_STATE_DROP_FIFO;
-            clkdiv <= i_tdata[47:32];
-            rxd_enable <= 1'b1;
-        end
-
-        TXD_STATE_DROP_FIFO: begin
-            if (i_tlast) txd_state <= TXD_STATE_RECV_CHDR;
-        end
-
-        endcase //txd_state
-    end
-
-    assign tx_char = i_tdata[7:0];
-    assign fifo_write = (txd_state == TXD_STATE_RECV_BODY) && i_tvalid && i_tready;
-    assign i_tready = !fifo_full;
-
-endmodule // cvita_uart
diff --git a/fpga/usrp3/lib/control/dram_2port.v b/fpga/usrp3/lib/control/dram_2port.v
deleted file mode 100644
index 186af44e7..000000000
--- a/fpga/usrp3/lib/control/dram_2port.v
+++ /dev/null
@@ -1,27 +0,0 @@
-////////////////////////////////////////////////////////////////////////
-// Copyright Ettus Research LLC
-////////////////////////////////////////////////////////////////////////
-
-module dram_2port
-  #(parameter DWIDTH=32,
-    parameter AWIDTH=9)
-    (input clk,
-     input write,
-     input [AWIDTH-1:0] raddr,
-     input [AWIDTH-1:0] waddr,
-     input [DWIDTH-1:0] wdata,
-     output [DWIDTH-1:0] rdata);
-
-    reg [DWIDTH-1:0] ram [(1<<AWIDTH)-1:0];
-   integer 	    i;
-   initial
-     for(i=0;i<(1<<AWIDTH);i=i+1)
-       ram[i] <= {DWIDTH{1'b0}};
-
-    assign rdata = ram[raddr];
-
-    always @(posedge clk) begin
-        if (write) ram[waddr] <= wdata;
-    end
-
-endmodule //dram_2port
diff --git a/fpga/usrp3/lib/control/filter_bad_sid.v b/fpga/usrp3/lib/control/filter_bad_sid.v
deleted file mode 100644
index 864094951..000000000
--- a/fpga/usrp3/lib/control/filter_bad_sid.v
+++ /dev/null
@@ -1,72 +0,0 @@
-// Discard silently packets which don't match this SID
-
-module filter_bad_sid
-  (
-   input clk,
-   input reset,
-   input clear,
-   //
-   input [64:0] i_tdata,
-   input i_tvalid,
-   output i_tready,
-   //
-   output [64:0] o_tdata,
-   output o_tvalid,
-   input  o_tready,
-   //
-   output reg [15:0] count
-   );
-
-   reg [1:0] state;
-   wire      good_sid;
-   wire      qualify_i_tvalid;
-   
-   localparam IDLE = 0;
-   localparam ACCEPT = 1;
-   localparam DISCARD = 2;
-   
-
-   always @(posedge clk)
-     if (reset | clear) begin
-	state <= IDLE;
-	count <= 0;
-     end else
-       case(state)
-	 //
-	 IDLE: begin
-	    if  (i_tvalid && i_tready)
-	      if (good_sid)
-		state <= ACCEPT;
-	      else begin
-		 count <= count + 1;
-		 state <= DISCARD;
-	      end	    
-	 end
-	 //
-	 ACCEPT: begin
-	    if (i_tvalid && i_tready && i_tdata[64]) 
-	      state <= IDLE;
-	 end
-	 //
-	 DISCARD: begin
-	    if (i_tvalid && i_tready && i_tdata[64]) 
-	      state <= IDLE;
-	 end
-       endcase // case(state)
-   
-   assign good_sid = ((i_tdata[15:0] == 16'h00A0) || (i_tdata[15:0] == 16'h00B0));
-   
-   assign qualify_i_tvalid = (state == IDLE) ? good_sid : ((state == DISCARD) ? 1'b0 : 1'b1);
-
-   //
-   // Buffer output, break combinatorial timing paths
-   //
-   axi_fifo_short #(.WIDTH(65)) fifo_short
-     (
-      .clk(clk), .reset(reset), .clear(clear),
-      .i_tdata(i_tdata), .i_tvalid(i_tvalid && qualify_i_tvalid), .i_tready(i_tready),
-      .o_tdata(o_tdata), .o_tvalid(o_tvalid), .o_tready(o_tready),
-      .space(), .occupied()
-      );
-   
-endmodule // axi_fast_fifo
diff --git a/fpga/usrp3/lib/control/gpio_atr.v b/fpga/usrp3/lib/control/gpio_atr.v
deleted file mode 100644
index 2e2f812f3..000000000
--- a/fpga/usrp3/lib/control/gpio_atr.v
+++ /dev/null
@@ -1,66 +0,0 @@
-
-//
-// Copyright 2011 Ettus Research LLC
-//
-
-
-
-module gpio_atr
-  #(parameter BASE = 0,
-    parameter WIDTH = 32,
-    parameter default_ddr = 0,
-    parameter default_idle = 0)
-   (input clk, input reset,
-    input set_stb, input [7:0] set_addr, input [31:0] set_data,
-    input rx, input tx,
-    inout [WIDTH-1:0] gpio,
-    output reg [31:0] gpio_readback
-    );
-   
-   wire [WIDTH-1:0]   ddr, in_idle, in_tx, in_rx, in_fdx;
-   reg [WIDTH-1:0]    rgpio, igpio;
-   reg [WIDTH-1:0]    gpio_pipe;
-   
-   
-   setting_reg #(.my_addr(BASE+0), .width(WIDTH), .at_reset(default_idle)) reg_idle
-     (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), .in(set_data),
-      .out(in_idle),.changed());
-
-   setting_reg #(.my_addr(BASE+1), .width(WIDTH)) reg_rx
-     (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), .in(set_data),
-      .out(in_rx),.changed());
-
-   setting_reg #(.my_addr(BASE+2), .width(WIDTH)) reg_tx
-     (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), .in(set_data),
-      .out(in_tx),.changed());
-
-   setting_reg #(.my_addr(BASE+3), .width(WIDTH)) reg_fdx
-     (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), .in(set_data),
-      .out(in_fdx),.changed());
-
-   setting_reg #(.my_addr(BASE+4), .width(WIDTH), .at_reset(default_ddr)) reg_ddr
-     (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr), .in(set_data),
-      .out(ddr),.changed());
-
-   always @(posedge clk)
-     case({tx,rx})
-       2'b00: rgpio <= in_idle;
-       2'b01: rgpio <= in_rx;
-       2'b10: rgpio <= in_tx;
-       2'b11: rgpio <= in_fdx;
-     endcase // case ({tx,rx})
-   
-   integer 	      n;
-   always @*
-     for(n=0;n<WIDTH;n=n+1)
-       igpio[n] <= ddr[n] ? rgpio[n] : 1'bz;
-
-   assign     gpio = igpio;
-
-   // Double pipeline stage for timing, first flop is in IOB, second in core logic.
-   always @(posedge clk) begin
-      gpio_pipe <= gpio;
-      gpio_readback <= gpio_pipe;
-   end
-   
-endmodule // gpio_atr
diff --git a/fpga/usrp3/lib/control/por_gen.v b/fpga/usrp3/lib/control/por_gen.v
deleted file mode 100644
index 0e4fcd88a..000000000
--- a/fpga/usrp3/lib/control/por_gen.v
+++ /dev/null
@@ -1,25 +0,0 @@
-//
-// Copyright 2013 Ettus Research LLC
-//
-
-
-
-module por_gen
-  (input clk,
-   output reset_out);
-
-   reg 		por_rst;
-   reg [7:0] 	por_counter = 8'h0;
-
-   always @(posedge clk)
-     if (por_counter != 8'h55)
-       begin
-          por_counter <= por_counter + 8'h1;
-          por_rst <= 1'b1;
-       end
-     else
-       por_rst <= 1'b0;
-
-   assign reset_out = por_rst;
-
-endmodule // por_gen
diff --git a/fpga/usrp3/lib/control/radio_ctrl_proc.v b/fpga/usrp3/lib/control/radio_ctrl_proc.v
deleted file mode 100644
index 723ba69ff..000000000
--- a/fpga/usrp3/lib/control/radio_ctrl_proc.v
+++ /dev/null
@@ -1,143 +0,0 @@
-
-
-// Radio Control Processor
-//  Accepts compressed vita extension context packets of the following form:
-//       { VITA Compressed Header, Stream ID }
-//       { Optional 64 bit time }
-//       { 16'h0, setting bus address [15:0], setting [31:0] }
-//  
-//  If there is a timestamp, packet is held until that time comes.
-//  Goes immediately if there is no timestamp or if time has passed.
-//  Sends out setting to setting bus, and then generates a response packet
-//  with the same sequence number, the src/dest swapped streamid, and the actual time
-//  the setting was sent.
-//
-// Note -- if t0 is the requested time, the actual send time on the setting bus is t0 + 1 cycle.
-// Note 2 -- if t1 is the actual time the setting bus, t1+2 is the reported time.
-
-module radio_ctrl_proc
-  (input clk, input reset, input clear,
-   
-   input [63:0] ctrl_tdata, input ctrl_tlast, input ctrl_tvalid, output reg ctrl_tready,
-   output reg [63:0] resp_tdata, output reg resp_tlast, output resp_tvalid, input resp_tready,
-   
-   input [63:0] vita_time,
-
-   output set_stb, output [7:0] set_addr, output [31:0] set_data,
-   input ready,
-   
-   input [63:0] readback,
-   
-   output [31:0] debug);
-
-   localparam RC_HEAD   = 4'd0;
-   localparam RC_TIME   = 4'd1;
-   localparam RC_DATA   = 4'd2;
-   localparam RC_DUMP   = 4'd3;
-   localparam RC_RESP_HEAD = 4'd4;
-   localparam RC_RESP_TIME = 4'd5;
-   localparam RC_RESP_DATA = 4'd6;
-   
-   wire 	 IS_EC = ctrl_tdata[63];
-   wire 	 HAS_TIME = ctrl_tdata[61];
-   reg 		 HAS_TIME_reg;
-   
-   reg [3:0] 	 rc_state;
-   reg [63:0] 	 cmd_time;
-
-   wire 	 now, late, go;
-   reg [11:0] 	 seqnum;
-   reg [31:0] 	 sid;
-   
-   always @(posedge clk)
-     if(reset)
-       begin
-	  rc_state <= RC_HEAD;
-	  HAS_TIME_reg <= 1'b0;
-	  sid <= 32'd0;
-	  seqnum <= 12'd0;
-       end
-     else
-	 case(rc_state)
-	   RC_HEAD :
-	     if(ctrl_tvalid)
-	       begin
-		  sid <= ctrl_tdata[31:0];
-		  seqnum <= ctrl_tdata[59:48];
-		  HAS_TIME_reg <= HAS_TIME;
-		  if(IS_EC)
-		    if(HAS_TIME)
-		      rc_state <= RC_TIME;
-		    else
-		      rc_state <= RC_DATA;
-		  else
-		    if(~ctrl_tlast)
-		      rc_state <= RC_DUMP;
-	       end
-	   
-	   RC_TIME :
-	     if(ctrl_tvalid)
-	       if(ctrl_tlast)
-		 rc_state <= RC_RESP_HEAD;
-	       else if(go)
-		 rc_state <= RC_DATA;
-	   
-	   RC_DATA :
-	     if(ctrl_tvalid)
-	       if(ready)
-		 if(ctrl_tlast)
-		   rc_state <= RC_RESP_HEAD;
-		 else
-		   rc_state <= RC_DUMP;
-
-	   RC_DUMP :
-	     if(ctrl_tvalid)
-	       if(ctrl_tlast)
-		 rc_state <= RC_RESP_HEAD;
-
-	   RC_RESP_HEAD :
-	     if(resp_tready)
-	       rc_state <= RC_RESP_TIME;
-
-	   RC_RESP_TIME :
-	     if(resp_tready)
-	       rc_state <= RC_RESP_DATA;
-
-	   RC_RESP_DATA:
-	     if(resp_tready)
-	       rc_state <= RC_HEAD;
-	   
-	   default :
-	     rc_state <= RC_HEAD;
-	 endcase // case (rc_state)
-
-   always @*
-     case (rc_state)
-       RC_HEAD : ctrl_tready <= 1'b1;
-       RC_TIME : ctrl_tready <= ctrl_tlast | go;
-       RC_DATA : ctrl_tready <= ready;
-       RC_DUMP : ctrl_tready <= 1'b1;
-       default : ctrl_tready <= 1'b0;
-     endcase // case (rc_state)
-      
-   time_compare time_compare
-     (.clk(clk), .reset(reset), .time_now(vita_time), .trigger_time(ctrl_tdata), .now(now), .early(), .late(late), .too_early());
-
-   assign go = now | late;
-   
-   assign set_stb = (rc_state == RC_DATA) & ready & ctrl_tvalid;
-   assign set_addr = ctrl_tdata[39:32];
-   assign set_data = ctrl_tdata[31:0];
-
-   always @*
-     case (rc_state)
-       RC_RESP_HEAD : { resp_tlast, resp_tdata } <= {1'b0, 4'hA, seqnum, 16'd24, sid[15:0], sid[31:16] };
-       RC_RESP_TIME : { resp_tlast, resp_tdata } <= {1'b0, vita_time};
-       RC_RESP_DATA : { resp_tlast, resp_tdata } <= {1'b1, readback};
-       default : { resp_tlast, resp_tdata } <= 65'h0;
-     endcase // case (rc_state)
-   
-   assign resp_tvalid = (rc_state == RC_RESP_HEAD) | (rc_state == RC_RESP_TIME) | (rc_state == RC_RESP_DATA);
-   
-endmodule // radio_ctrl_proc
-
diff --git a/fpga/usrp3/lib/control/radio_ctrl_proc_tb.v b/fpga/usrp3/lib/control/radio_ctrl_proc_tb.v
deleted file mode 100644
index da863f4ea..000000000
--- a/fpga/usrp3/lib/control/radio_ctrl_proc_tb.v
+++ /dev/null
@@ -1,104 +0,0 @@
-`timescale 1ns/1ps
-
-module radio_ctrl_proc_tb();
-
-   reg clk    = 0;
-   reg reset  = 1;
-   
-   always #10 clk = ~clk;
-   
-   initial $dumpfile("radio_ctrl_proc_tb.vcd");
-   initial $dumpvars(0,radio_ctrl_proc_tb);
-
-   initial
-     begin
-	#1000 reset = 0;
-	#20000;
-	$finish;
-     end
-   
-   reg [63:0] vita_time = 64'd0;
-   always @(posedge clk)
-     if(reset) vita_time <= 64'd0;
-     else vita_time <= vita_time + 64'd1;
-
-   reg [63:0]  tdata;
-   wire [63:0] tdata_int;
-   reg 	       tlast;
-   wire        tlast_int;
-   reg 	       tvalid = 1'b0;
-   wire        tvalid_int;
-   wire        tready, tready_int;
-   
-   wire [7:0]  set_addr;
-   wire [31:0] set_data;
-   wire        set_stb;
-   wire        ready = 1'b1;
-
-   task send_packet;
-      input ec;
-      input timed;
-      input [11:0] seqnum;
-      input [31:0] sid;
-      input [63:0] vtime;
-      input [15:0] addr;
-      input [31:0] data;
-      
-      begin
-	 // Send a packet
-	 @(posedge clk);
-	 tlast <= 1'b0;
-	 tdata <= { ec, 1'b0, timed, 1'b0, seqnum, timed ? 16'd6 : 16'd4, sid };
-	 tvalid <= 1;
-	 @(posedge clk);
-	 if(timed)
-	   begin
-	      tdata <= vtime;
-	      @(posedge clk);
-	   end
-	 tlast <= 1'b1;
-	 tdata <= { 16'h0, addr, data };
-	 @(posedge clk);
-	 tvalid <= 0;	 
-	 @(posedge clk);
-      end
-   endtask // send_packet
-   
-   initial
-     begin
-	tvalid <= 1'b0;
-	while(reset)
-	  @(posedge clk);
-	send_packet(1'b1,1'b0,12'h5,32'hDEAD_BEEF,64'h0,16'hB,32'hF00D_1234);
-	send_packet(1'b1,1'b1,12'h6,32'hDEAD_6789,64'h20,16'hC,32'hABCD_4321);
-	send_packet(1'b1,1'b1,12'h7,32'hDEAD_6789,64'h30,16'hC,32'hABCD_4321);
-	//send_packet(.ec(1), .timed(0), .seqnum(5), .sid(32'hDEAD_BEEF), .vtime(0), .addr(16'hB), .data(32'hF00D_1234));
-     end
-
-   axi_fifo_short #(.WIDTH(65)) axi_fifo_short
-     (.clk(clk), .reset(reset), .clear(1'b0),
-      .i_tdata({tlast,tdata}), .i_tvalid(tvalid), .i_tready(tready),
-      .o_tdata({tlast_int,tdata_int}), .o_tvalid(tvalid_int), .o_tready(tready_int));
-
-   wire [63:0] resp_tdata;
-   wire        resp_tlast, resp_tvalid, resp_tready;
-   
-   radio_ctrl_proc radio_ctrl_proc
-     (.clk(clk), .reset(reset), .clear(1'b0),
-      .ctrl_tdata(tdata_int), .ctrl_tlast(tlast_int), .ctrl_tvalid(tvalid_int), .ctrl_tready(tready_int),
-      .resp_tdata(resp_tdata), .resp_tlast(resp_tlast), .resp_tvalid(resp_tvalid), .resp_tready(resp_tready),
-      .vita_time(vita_time), .ready(ready),
-      .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
-      .debug()
-      );
-
-   assign resp_tready = 1'b1;
-   
-   always @(posedge clk)
-     if(resp_tvalid & resp_tready)
-       begin
-	  $display("%x",resp_tdata);
-	  if(resp_tlast)
-	    $display("TLAST");
-       end
-endmodule // radio_ctrl_proc_tb
diff --git a/fpga/usrp3/lib/control/ram_2port.v b/fpga/usrp3/lib/control/ram_2port.v
deleted file mode 100644
index 434af0ff3..000000000
--- a/fpga/usrp3/lib/control/ram_2port.v
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-
-
-
-
-module ram_2port
-  #(parameter DWIDTH=32,
-    parameter AWIDTH=9)
-    (input clka,
-     input ena,
-     input wea,
-     input [AWIDTH-1:0] addra,
-     input [DWIDTH-1:0] dia,
-     output reg [DWIDTH-1:0] doa,
-     
-     input clkb,
-     input enb,
-     input web,
-     input [AWIDTH-1:0] addrb,
-     input [DWIDTH-1:0] dib,
-     output reg [DWIDTH-1:0] dob);
-   
-   reg [DWIDTH-1:0] ram [(1<<AWIDTH)-1:0];
-   /*
-   integer 	    i;
-   initial
-     for(i=0;i<(1<<AWIDTH);i=i+1)
-       ram[i] <= {DWIDTH{1'b0}};
-       */
-   
-   always @(posedge clka) begin
-      if (ena)
-        begin
-           if (wea)
-             ram[addra] <= dia;
-           doa <= ram[addra];
-        end
-   end
-   always @(posedge clkb) begin
-      if (enb)
-        begin
-           if (web)
-             ram[addrb] <= dib;
-           dob <= ram[addrb];
-        end
-   end
-endmodule // ram_2port
diff --git a/fpga/usrp3/lib/control/reset_sync.v b/fpga/usrp3/lib/control/reset_sync.v
deleted file mode 100644
index da284e62e..000000000
--- a/fpga/usrp3/lib/control/reset_sync.v
+++ /dev/null
@@ -1,28 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-
-
-
-
-module reset_sync
-  (input clk,
-   input reset_in,
-   output  reset_out);
-
-   reg 	   reset_int;
-
-   reg 	   reset_out_tmp;
-
-   //synthesis attribute async_reg of reset_out_tmp is "true";
-   //synthesis attribute async_reg of reset_int is "true";
-   always @(posedge clk or posedge reset_in)
-     if(reset_in)
-       {reset_out_tmp,reset_int} <= 2'b11;
-     else
-       {reset_out_tmp,reset_int} <= {reset_int,1'b0};
-
-   assign reset_out = reset_out_tmp;
-
-
-endmodule // reset_sync
diff --git a/fpga/usrp3/lib/control/serial_to_settings.v b/fpga/usrp3/lib/control/serial_to_settings.v
deleted file mode 100644
index 3dcd80b23..000000000
--- a/fpga/usrp3/lib/control/serial_to_settings.v
+++ /dev/null
@@ -1,121 +0,0 @@
-
-
-module serial_to_settings
-  (
-   input clk,
-   input reset,
-   // Serial signals (async)
-   input scl,
-   input sda,
-   // Settngs bus out
-   output reg set_stb,
-   output reg [7:0] set_addr,
-   output reg [31:0] set_data,
-   // Debug
-   output [31:0] debug
-   );
-
-   reg [2:0] 	 state;
-   
-   localparam 	 SEARCH = 3'h0;
-   localparam 	 ADDRESS = 3'h1;
-   localparam 	 DATA = 3'h2;
-   localparam 	 STOP1 = 3'h3;
-   localparam 	 STOP2 = 3'h4;
- 	 
-   reg 		 scl_pre_reg, scl_reg, scl_reg2;
-   reg 		 sda_pre_reg, sda_reg, sda_reg2;
-   reg [4:0] 	 counter;
-
- 
-     always @(posedge clk) begin
-      scl_reg2 <= scl_reg;
-      scl_reg <= scl_pre_reg;
-      scl_pre_reg <= scl;
-      sda_reg2 <= sda_reg;
-      sda_reg <= sda_pre_reg;
-      sda_pre_reg <= sda;
-   end
-
-   
-   always @(posedge clk)
-     if (reset) begin
-	state <= SEARCH;
-	counter <= 0;
-	set_addr <= 0;
-	set_data <= 0;
-	set_stb <= 0;
-     end else begin
-	case(state)
-	  //
-	  // Search for I2C like start indication: SDA goes low whilst clock is high.
-	  //
-	  SEARCH: begin
-	     set_stb <= 0;
-	     // Look for START.
-	     if (scl_reg && scl_reg2 && !sda_reg && sda_reg2) begin
-		state <= ADDRESS;
-		counter <= 0;
-	     end
-	  end
-	  //
-	  // Count 8 Address bits.
-	  // Master changes SDA on falling edge of SCL, we sample on the rising edge.
-	  //
-	  ADDRESS: begin
-	     if (scl_reg && !scl_reg2) begin
-		set_addr[7:0] <= {set_addr[6:0],sda_reg};
-		if (counter == 7) begin
-		   state <= DATA;
-		   counter <= 0;
-		end else
-		  counter <= counter + 1;		  
-	    end
-	  end
-	  //
-	  // Count 32 data bits.
-	  // Master changes SDA on falling edge of SCL, we sample on the rising edge.
-	  //
-	  DATA: begin
-	     if (scl_reg && !scl_reg2) begin
-		set_data[31:0] <= {set_data[30:0],sda_reg};
-		if (counter == 31) begin
-		   state <= STOP1;
-		   counter <= 0;
-		end else
-		  counter <= counter + 1;		  
-	    end
-	  end
-	  //
-	  // Looks for rising SCL edge before STOP bit.
-	  //
-	  STOP1: begin
-	     if (scl_reg && !scl_reg2) begin
-		state <= STOP2;
-	     end
-	  end
-	  //
-	  // Looks for STOP bit
-	  //
-	  STOP2: begin
-	     if (scl_reg && scl_reg2 && sda_reg && !sda_reg2) begin
-		state <= SEARCH;
-		counter <= 0;
-		set_stb <= 1;
-	     end
-	  end
-	  
-	endcase // case(state)
-     end // else: !if(reset)
-
-   assign debug =
-		 {
-		  counter[4:0],
-		  state[2:0],
-		  scl_reg,
-		  sda_reg
-		  };
-   
-
-
-endmodule // serial_to_settings
diff --git a/fpga/usrp3/lib/control/serial_to_settings_tb.v b/fpga/usrp3/lib/control/serial_to_settings_tb.v
deleted file mode 100644
index adaa2c985..000000000
--- a/fpga/usrp3/lib/control/serial_to_settings_tb.v
+++ /dev/null
@@ -1,82 +0,0 @@
-
-
-module serial_to_settings_tb();
-
-
-
-   reg clk;
-   reg reset;
-
-   wire scl;
-   wire sda;
-   wire set_stb;
-   wire [7:0] set_addr;
-   wire [31:0] set_data;
-
-   //
-   // These registers optionaly used
-   // to drive nets through procedural assignments in test bench.
-   // These drivers default to tri-stated.
-   //
-   reg 	       scl_r;
-   reg 	       sda_r;
-
-   assign      scl = scl_r;
-   assign      sda = sda_r;
-
-   initial
-     begin
-	scl_r <= 1'bz;
-	sda_r <= 1'bz;
-     end
-   
-   
-
-     serial_to_settings   serial_to_settings_i
-     (
-      .clk(clk),
-      .reset(reset),
-      // Serial signals (async)
-      .scl(scl),
-      .sda(sda),
-      // Settngs bus out
-      .set_stb(set_stb),
-      .set_addr(set_addr),
-      .set_data(set_data)
-      );
-
-   // Nasty HAck to convert settings to wishbone crudely.
-   reg 	       wb_stb;
-   wire        wb_ack_o;
-   
-   
-   always @(posedge clk)
-     if (reset)
-       wb_stb <= 0;
-     else
-       wb_stb <= set_stb ? 1 : ((wb_ack_o) ? 0 : wb_stb);
-   
-     simple_uart debug_uart
-     (
-      .clk_i(clk), 
-      .rst_i(reset),
-      .we_i(wb_stb), 
-      .stb_i(wb_stb), 
-      .cyc_i(wb_stb), 
-      .ack_o(wb_ack_o),
-      .adr_i(set_addr[2:0]), 
-      .dat_i(set_data[31:0]), 
-      .dat_o(),
-      .rx_int_o(), 
-      .tx_int_o(), 
-      .tx_o(txd), 
-      .rx_i(rxd), 
-      .baud_o()
-      );
-   
-   //
-   // Bring in a simulation script here
-   //
-   `include "simulation_script.v"
-
-endmodule
\ No newline at end of file
diff --git a/fpga/usrp3/lib/control/setting_reg.v b/fpga/usrp3/lib/control/setting_reg.v
deleted file mode 100644
index 1664f54e2..000000000
--- a/fpga/usrp3/lib/control/setting_reg.v
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// Copyright 2011-2012 Ettus Research LLC
-//
-
-
-//----------------------------------------------------------------------
-//-- A settings register is a peripheral for the settings register bus.
-//-- When the settings register sees strobe abd a matching address,
-//-- the outputs will be become registered to the given input bus.
-//----------------------------------------------------------------------
-
-module setting_reg
-  #(parameter my_addr = 0, 
-    parameter awidth = 8,
-    parameter width = 32,
-    parameter at_reset=0)
-    (input clk, input rst, input strobe, input wire [awidth-1:0] addr,
-     input wire [31:0] in, output reg [width-1:0] out, output reg changed);
-   
-   always @(posedge clk)
-     if(rst)
-       begin
-	  out <= at_reset;
-	  changed <= 1'b0;
-       end
-     else
-       if(strobe & (my_addr==addr))
-	 begin
-	    out <= in[width-1:0];
-	    changed <= 1'b1;
-	 end
-       else
-	 changed <= 1'b0;
-   
-endmodule // setting_reg
diff --git a/fpga/usrp3/lib/control/settings_bus_crossclock.v b/fpga/usrp3/lib/control/settings_bus_crossclock.v
deleted file mode 100644
index 2a6e7e7ef..000000000
--- a/fpga/usrp3/lib/control/settings_bus_crossclock.v
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// Copyright 2011-2012 Ettus Research LLC
-//
-
-
-
-
-// This module takes the settings bus on one clock domain and crosses it over to another domain
-// Typically it will be used with the input settings bus on the wishbone clock, and either 
-// the system or dsp clock on the output side
-
-module settings_bus_crossclock
-  #(parameter FLOW_CTRL=0, parameter AWIDTH=8, parameter DWIDTH=32)
-  (input clk_i, input rst_i, input set_stb_i, input [AWIDTH-1:0] set_addr_i, input [DWIDTH-1:0] set_data_i,
-   input clk_o, input rst_o, output set_stb_o, output [AWIDTH-1:0] set_addr_o, output [DWIDTH-1:0] set_data_o, input blocked);
-
-   wire  nfull, nempty;
-   
-   axi_fifo_2clk #(.WIDTH(AWIDTH + DWIDTH), .SIZE(0)) settings_fifo
-     (.reset(rst_i),
-      .i_aclk(clk_i), .i_tdata({set_addr_i,set_data_i}), .i_tvalid(set_stb_i), .i_tready(nfull),
-      .o_aclk(clk_o), .o_tdata({set_addr_o,set_data_o}), .o_tready(set_stb_o), .o_tvalid(nempty));
-
-   assign set_stb_o = nempty & (~blocked | ~FLOW_CTRL);
-
-endmodule // settings_bus_crossclock
diff --git a/fpga/usrp3/lib/control/simple_i2c_core.v b/fpga/usrp3/lib/control/simple_i2c_core.v
deleted file mode 100644
index 47f1ac82a..000000000
--- a/fpga/usrp3/lib/control/simple_i2c_core.v
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-
-
-// Simple I2C core
-
-// Settings reg map:
-//
-// BASE+0 control register
-//   byte0 - control bits, data byte, or command bits, prescaler
-//   byte1 - what to do? (documented in cpp file)
-//      write prescaler lo
-//      write prescaler hi
-//      write control
-//      write data
-//      write command
-//      read data
-//      read status
-//
-
-// Readback:
-//
-// byte0 has readback value based on the last read command
-//
-
-module simple_i2c_core
-    #(
-        //settings register base address
-        parameter BASE = 0,
-
-        //i2c line level at reset
-        parameter ARST_LVL = 1
-    )
-    (
-        //clock and synchronous reset
-        input clock, input reset,
-
-        //32-bit settings bus inputs
-        input set_stb, input [7:0] set_addr, input [31:0] set_data,
-
-        //32-bit data readback
-        output reg [31:0] readback,
-
-        //read is high when i2c core can begin another transaction
-        output reg ready,
-
-        // I2C signals
-        // i2c clock line
-        input  scl_pad_i,       // SCL-line input
-        output scl_pad_o,       // SCL-line output (always 1'b0)
-        output scl_padoen_o,    // SCL-line output enable (active low)
-
-        // i2c data line
-        input  sda_pad_i,       // SDA-line input
-        output sda_pad_o,       // SDA-line output (always 1'b0)
-        output sda_padoen_o,    // SDA-line output enable (active low)
-
-        //optional debug output
-        output [31:0] debug
-    );
-
-    //declare command settings register
-    wire [7:0] sr_what, sr_data;
-    wire sr_changed;
-    setting_reg #(.my_addr(BASE+0),.width(16)) i2c_cmd_sr(
-        .clk(clock),.rst(reset),.strobe(set_stb),.addr(set_addr),.in(set_data),
-        .out({sr_what, sr_data}),.changed(sr_changed));
-
-    //declare wb interface signals
-    wire [2:0] wb_addr;
-    wire [7:0] wb_data_mosi;
-    wire [7:0] wb_data_miso;
-    wire wb_we, wb_stb, wb_cyc;
-    wire wb_ack;
-
-    //create wishbone-based i2c core
-    i2c_master_top #(.ARST_LVL(ARST_LVL)) i2c 
-     (.wb_clk_i(clock),.wb_rst_i(reset),.arst_i(1'b0), 
-      .wb_adr_i(wb_addr),.wb_dat_i(wb_data_mosi),.wb_dat_o(wb_data_miso),
-      .wb_we_i(wb_we),.wb_stb_i(wb_stb),.wb_cyc_i(wb_cyc),
-      .wb_ack_o(wb_ack),.wb_inta_o(),
-      .scl_pad_i(scl_pad_i),.scl_pad_o(scl_pad_o),.scl_padoen_o(scl_padoen_o),
-      .sda_pad_i(sda_pad_i),.sda_pad_o(sda_pad_o),.sda_padoen_o(sda_padoen_o) );
-
-    //not ready between setting register and wishbone ack
-    always @(posedge clock) begin
-        if (reset || wb_ack) ready <= 1;
-        else if (sr_changed) ready <= 0;
-    end
-
-    //register wishbone data on every ack
-    always @(posedge clock) begin
-        if (wb_ack) readback <= {24'b0, wb_data_miso};
-    end
-
-    //assign wishbone signals
-    assign wb_addr = sr_what[2:0];
-    assign wb_stb = sr_changed;
-    assign wb_we = wb_stb && sr_what[3];
-    assign wb_cyc = wb_stb;
-    assign wb_data_mosi = sr_data;
-
-endmodule //simple_i2c_core
diff --git a/fpga/usrp3/lib/control/simple_spi_core.v b/fpga/usrp3/lib/control/simple_spi_core.v
deleted file mode 100644
index b4d410433..000000000
--- a/fpga/usrp3/lib/control/simple_spi_core.v
+++ /dev/null
@@ -1,215 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-
-
-// Simple SPI core, the simplest, yet complete spi core I can think of
-
-// Settings register controlled.
-// 2 settings regs, control and data
-// 1 32-bit readback and status signal
-
-// Settings reg map:
-//
-// BASE+0 divider setting
-// bits [15:0] spi clock divider
-//
-// BASE+1 configuration input
-// bits [23:0] slave select, bit0 = slave0 enabled
-// bits [29:24] num bits (1 through 32)
-// bit [30] data input edge = in data bit latched on rising edge of clock
-// bit [31] data output edge = out data bit latched on rising edge of clock
-//
-// BASE+2 input data
-// Writing this register begins a spi transaction.
-// Bits are latched out from bit 0.
-// Therefore, load this register in reverse.
-//
-// Readback
-// Bits are latched into bit 0.
-// Therefore, data will be in-order.
-
-module simple_spi_core
-    #(
-        //settings register base address
-        parameter BASE = 0,
-
-        //width of serial enables (up to 24 is possible)
-        parameter WIDTH = 8,
-
-        //idle state of the spi clock
-        parameter CLK_IDLE = 0,
-
-        //idle state of the serial enables
-        parameter SEN_IDLE = 24'hffffff
-    )
-    (
-        //clock and synchronous reset
-        input clock, input reset,
-
-        //32-bit settings bus inputs
-        input set_stb, input [7:0] set_addr, input [31:0] set_data,
-
-        //32-bit data readback
-        output [31:0] readback,
-
-        //read is high when spi core can begin another transaction
-        output ready,
-
-        //spi interface, slave selects, clock, data in, data out
-        output reg [WIDTH-1:0] sen,
-        output sclk,
-        output reg mosi,
-        input miso,
-
-        //optional debug output
-        output [31:0] debug
-    );
-
-    wire [15:0] sclk_divider;
-    setting_reg #(.my_addr(BASE+0),.width(16)) divider_sr(
-        .clk(clock),.rst(reset),.strobe(set_stb),.addr(set_addr),.in(set_data),
-        .out(sclk_divider),.changed());
-
-    wire [23:0] slave_select;
-    wire [5:0] num_bits;
-    wire datain_edge, dataout_edge;
-    setting_reg #(.my_addr(BASE+1),.width(32)) config_sr(
-        .clk(clock),.rst(reset),.strobe(set_stb),.addr(set_addr),.in(set_data),
-        .out({dataout_edge, datain_edge, num_bits, slave_select}),.changed());
-
-    wire [31:0] mosi_data;
-    wire trigger_spi;
-    setting_reg #(.my_addr(BASE+2),.width(32)) data_sr(
-        .clk(clock),.rst(reset),.strobe(set_stb),.addr(set_addr),.in(set_data),
-        .out(mosi_data),.changed(trigger_spi));
-
-    localparam WAIT_TRIG = 0;
-    localparam PRE_IDLE = 1;
-    localparam CLK_REG = 2;
-    localparam CLK_INV = 3;
-    localparam POST_IDLE = 4;
-    localparam IDLE_SEN = 5;
-
-    reg [2:0] state;
-
-    reg ready_reg;
-    assign ready = ready_reg && ~trigger_spi;
-
-    //serial clock either idles or is in one of two clock states
-    reg sclk_reg;
-    assign sclk = sclk_reg;
-
-    //serial enables either idle or enabled based on state
-    // IJB. One pipeline stage to break critical path from register in I/O pads.
-    wire sen_is_idle = (state == WAIT_TRIG) || (state == IDLE_SEN);
-    wire [23:0] sen24 = (sen_is_idle)? SEN_IDLE : (SEN_IDLE ^ slave_select);
-    reg [WIDTH-1:0] sen_reg;
-    always @(posedge clock) 
-      sen_reg <= sen24[WIDTH-1:0];
-    always @(posedge clock) 
-      sen <= sen_reg;
-
-    //data output shift register
-   // IJB. One pipeline stage to break critical path from register in I/O pads.
-    reg [31:0] dataout_reg;
-    wire [31:0] dataout_next = {dataout_reg[30:0], 1'b0};
-   
-   always @(posedge clock)
-     mosi <= dataout_reg[31];
-
-    //data input shift register
-   // IJB. Two pipeline stages to break critical path from register in I/O pads.
-   reg 		miso_pipe, miso_pipe2;
-   always @(posedge clock) begin
-      miso_pipe2 <= miso;
-      miso_pipe <= miso_pipe2;
-   end
-   
-    reg [31:0] datain_reg;
-    wire [31:0] datain_next = {datain_reg[30:0], miso_pipe};
-    assign readback = datain_reg;
-
-    //counter for spi clock
-    reg [15:0] sclk_counter;
-    wire sclk_counter_done = (sclk_counter == sclk_divider);
-    wire [15:0] sclk_counter_next = (sclk_counter_done)? 0 : sclk_counter + 1;
-
-    //counter for latching bits miso/mosi
-    reg [6:0] bit_counter;
-    wire [6:0] bit_counter_next = bit_counter + 1;
-    wire bit_counter_done = (bit_counter_next == num_bits);
-
-    always @(posedge clock) begin
-        if (reset) begin
-            state <= WAIT_TRIG;
-            sclk_reg <= CLK_IDLE;
-            ready_reg <= 0;
-        end
-        else begin
-            case (state)
-
-            WAIT_TRIG: begin
-                if (trigger_spi) state <= PRE_IDLE;
-                ready_reg <= ~trigger_spi;
-                dataout_reg <= mosi_data;
-                sclk_counter <= 0;
-                bit_counter <= 0;
-                sclk_reg <= CLK_IDLE;
-            end
-
-            PRE_IDLE: begin
-                if (sclk_counter_done) state <= CLK_REG;
-                sclk_counter <= sclk_counter_next;
-                sclk_reg <= CLK_IDLE;
-            end
-
-            CLK_REG: begin
-                if (sclk_counter_done) begin
-                    state <= CLK_INV;
-                    if (datain_edge  != CLK_IDLE)                     datain_reg  <= datain_next;
-                    if (dataout_edge != CLK_IDLE && bit_counter != 0) dataout_reg <= dataout_next;
-                    sclk_reg <= ~CLK_IDLE; //transition to rising when CLK_IDLE == 0
-                end
-                sclk_counter <= sclk_counter_next;
-            end
-
-            CLK_INV: begin
-                if (sclk_counter_done) begin
-                    state <= (bit_counter_done)? POST_IDLE : CLK_REG;
-                    bit_counter <= bit_counter_next;
-                    if (datain_edge  == CLK_IDLE)                      datain_reg  <= datain_next;
-                    if (dataout_edge == CLK_IDLE && ~bit_counter_done) dataout_reg <= dataout_next;
-                    sclk_reg <= CLK_IDLE; //transition to falling when CLK_IDLE == 0
-                end
-                sclk_counter <= sclk_counter_next;
-            end
-
-            POST_IDLE: begin
-                if (sclk_counter_done) state <= IDLE_SEN;
-                sclk_counter <= sclk_counter_next;
-                sclk_reg <= CLK_IDLE;
-            end
-
-            IDLE_SEN: begin
-                if (sclk_counter_done) state <= WAIT_TRIG;
-                sclk_counter <= sclk_counter_next;
-                sclk_reg <= CLK_IDLE;
-            end
-
-            default: state <= WAIT_TRIG;
-
-            endcase //state
-        end
-    end
-
-    assign debug = {
-        trigger_spi, state, //4
-        sclk, mosi, miso, ready, //4
-        //sen[7:0], //8
-        1'b0, bit_counter[6:0], //8
-        sclk_counter_done, bit_counter_done, //2
-        sclk_counter[5:0] //6
-    };
-
-endmodule //simple_spi_core
-- 
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