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Diffstat (limited to 'eim/rtl')
| -rw-r--r-- | eim/rtl/novena_regs.v | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/eim/rtl/novena_regs.v b/eim/rtl/novena_regs.v deleted file mode 100644 index f14e113..0000000 --- a/eim/rtl/novena_regs.v +++ /dev/null @@ -1,129 +0,0 @@ -//====================================================================== -// -// novena_regs.v -// ------------- -// Global registers for the Cryptech Novena FPGA framework. -// -// -// Author: Pavel Shatov -// Copyright (c) 2015, NORDUnet A/S All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions -// are met: -// - Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// -// - Redistributions in binary form must reproduce the above copyright -// notice, this list of conditions and the following disclaimer in the -// documentation and/or other materials provided with the distribution. -// -// - Neither the name of the NORDUnet nor the names of its contributors may -// be used to endorse or promote products derived from this software -// without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS -// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED -// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A -// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED -// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR -// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF -// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING -// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -//====================================================================== - -`timescale 1ns / 1ps - -module board_regs - ( - input wire clk, - input wire rst, - - input wire cs, - input wire we, - - input wire [ 7 : 0] address, - input wire [31 : 0] write_data, - output wire [31 : 0] read_data - ); - - - //---------------------------------------------------------------- - // Internal constant and parameter definitions. - //---------------------------------------------------------------- - // API addresses. - localparam ADDR_CORE_NAME0 = 8'h00; - localparam ADDR_CORE_NAME1 = 8'h01; - localparam ADDR_CORE_VERSION = 8'h02; - localparam ADDR_DUMMY_REG = 8'hFF; // general-purpose register - - // Core ID constants. - localparam CORE_NAME0 = 32'h50565431; // "PVT1" - localparam CORE_NAME1 = 32'h20202020; // " " - localparam CORE_VERSION = 32'h302e3130; // "0.10" - - - //---------------------------------------------------------------- - // Wires. - //---------------------------------------------------------------- - reg [31: 0] tmp_read_data; - - // dummy register to check that you can actually write something - reg [31: 0] reg_dummy; - - - //---------------------------------------------------------------- - // Concurrent connectivity for ports etc. - //---------------------------------------------------------------- - assign read_data = tmp_read_data; - - - //---------------------------------------------------------------- - // Access Handler - //---------------------------------------------------------------- - always @(posedge clk) - // - if (rst) - reg_dummy <= {32{1'b0}}; - else if (cs) begin - // - if (we) begin - // - // WRITE handler - // - case (address) - ADDR_DUMMY_REG: - reg_dummy <= write_data; - endcase - // - end else begin - // - // READ handler - // - case (address) - ADDR_CORE_NAME0: - tmp_read_data <= CORE_NAME0; - ADDR_CORE_NAME1: - tmp_read_data <= CORE_NAME1; - ADDR_CORE_VERSION: - tmp_read_data <= CORE_VERSION; - ADDR_DUMMY_REG: - tmp_read_data <= reg_dummy; - // - default: - tmp_read_data <= {32{1'b0}}; // read non-existent locations as zeroes - endcase - // - end - // - end - -endmodule - -//====================================================================== -// EOF novena_regs.v -//====================================================================== |