OpenFPGA/openfpga_flow/benchmarks/iwls2005/mem_ctrl/rtl/mc_top.v

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/////////////////////////////////////////////////////////////////////
//// ////
//// WISHBONE Memory Controller Top Level ////
//// ////
//// ////
//// Author: Rudolf Usselmann ////
//// rudi@asics.ws ////
//// ////
//// ////
//// Downloaded from: http://www.opencores.org/cores/mem_ctrl/ ////
//// ////
/////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000-2002 Rudolf Usselmann ////
//// www.asics.ws ////
//// rudi@asics.ws ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer.////
//// ////
//// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY ////
//// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED ////
//// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ////
//// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR ////
//// 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. ////
//// ////
/////////////////////////////////////////////////////////////////////
// CVS Log
//
// $Id: mc_top.v,v 1.7 2002/01/21 13:08:52 rudi Exp $
//
// $Date: 2002/01/21 13:08:52 $
// $Revision: 1.7 $
// $Author: rudi $
// $Locker: $
// $State: Exp $
//
// Change History:
// $Log: mc_top.v,v $
// Revision 1.7 2002/01/21 13:08:52 rudi
//
// Fixed several minor bugs, cleaned up the code further ...
//
// Revision 1.6 2001/12/21 05:09:30 rudi
//
// - Fixed combinatorial loops in synthesis
// - Fixed byte select bug
//
// Revision 1.5 2001/11/29 02:16:28 rudi
//
//
// - More Synthesis cleanup, mostly for speed
// - Several bug fixes
// - Changed code to avoid auto-precharge and
// burst-terminate combinations (apparently illegal ?)
// Now we will do a manual precharge ...
//
// Revision 1.4 2001/09/10 13:44:17 rudi
// *** empty log message ***
//
// Revision 1.3 2001/09/02 02:28:28 rudi
//
// Many fixes for minor bugs that showed up in gate level simulations.
//
// Revision 1.2 2001/08/10 08:16:21 rudi
//
// - Changed IO names to be more clear.
// - Uniquifyed define names to be core specific.
// - Removed "Refresh Early" configuration
//
// Revision 1.1 2001/07/29 07:34:41 rudi
//
//
// 1) Changed Directory Structure
// 2) Fixed several minor bugs
//
// Revision 1.3 2001/06/12 15:19:49 rudi
//
//
// Minor changes after running lint, and a small bug fix reading csr and ba_mask registers.
//
// Revision 1.2 2001/06/03 11:37:17 rudi
//
//
// 1) Fixed Chip Select Mask Register
// - Power On Value is now all ones
// - Comparison Logic is now correct
//
// 2) All resets are now asynchronous
//
// 3) Converted Power On Delay to an configurable item
//
// 4) Added reset to Chip Select Output Registers
//
// 5) Forcing all outputs to Hi-Z state during reset
//
// Revision 1.1.1.1 2001/05/13 09:39:39 rudi
// Created Directory Structure
//
//
//
//
`include "mc_defines.v"
module mc_top(clk_i, rst_i,
wb_data_i, wb_data_o, wb_addr_i, wb_sel_i, wb_we_i, wb_cyc_i,
wb_stb_i, wb_ack_o, wb_err_o,
susp_req_i, resume_req_i, suspended_o, poc_o,
mc_clk_i, mc_br_pad_i, mc_bg_pad_o, mc_ack_pad_i,
mc_addr_pad_o, mc_data_pad_i, mc_data_pad_o, mc_dp_pad_i,
mc_dp_pad_o, mc_doe_pad_doe_o, mc_dqm_pad_o, mc_oe_pad_o_,
mc_we_pad_o_, mc_cas_pad_o_, mc_ras_pad_o_, mc_cke_pad_o_,
mc_cs_pad_o_, mc_sts_pad_i, mc_rp_pad_o_, mc_vpen_pad_o,
mc_adsc_pad_o_, mc_adv_pad_o_, mc_zz_pad_o, mc_coe_pad_coe_o
);
input clk_i, rst_i;
// --------------------------------------
// WISHBONE SLAVE INTERFACE
input [31:0] wb_data_i;
output [31:0] wb_data_o;
input [31:0] wb_addr_i;
input [3:0] wb_sel_i;
input wb_we_i;
input wb_cyc_i;
input wb_stb_i;
output wb_ack_o;
output wb_err_o;
// --------------------------------------
// Suspend Resume Interface
input susp_req_i;
input resume_req_i;
output suspended_o;
// POC
output [31:0] poc_o;
// --------------------------------------
// Memory Bus Signals
input mc_clk_i;
input mc_br_pad_i;
output mc_bg_pad_o;
input mc_ack_pad_i;
output [23:0] mc_addr_pad_o;
input [31:0] mc_data_pad_i;
output [31:0] mc_data_pad_o;
input [3:0] mc_dp_pad_i;
output [3:0] mc_dp_pad_o;
output mc_doe_pad_doe_o;
output [3:0] mc_dqm_pad_o;
output mc_oe_pad_o_;
output mc_we_pad_o_;
output mc_cas_pad_o_;
output mc_ras_pad_o_;
output mc_cke_pad_o_;
output [7:0] mc_cs_pad_o_;
input mc_sts_pad_i;
output mc_rp_pad_o_;
output mc_vpen_pad_o;
output mc_adsc_pad_o_;
output mc_adv_pad_o_;
output mc_zz_pad_o;
output mc_coe_pad_coe_o;
////////////////////////////////////////////////////////////////////
//
// Local Wires
//
// WISHBONE Interface Interconnects
wire wb_read_go;
wire wb_write_go;
wire wb_first;
wire wb_wait;
wire mem_ack;
// Suspend Resume Interface
wire susp_sel;
// Register File Interconnects
wire [31:0] rf_dout;
wire [31:0] csc;
wire [31:0] tms;
wire [31:0] sp_csc;
wire [31:0] sp_tms;
wire [7:0] cs;
wire fs;
wire cs_le;
wire [7:0] cs_need_rfr;
wire [2:0] ref_int;
wire [31:0] mem_dout;
wire wp_err;
// Address Select Signals
wire [12:0] row_adr;
wire [1:0] bank_adr;
wire cmd_a10;
wire row_sel;
wire next_adr;
wire [10:0] page_size;
wire lmr_sel;
wire wr_hold;
// OBCT Signals
wire bank_set;
wire bank_clr;
wire bank_clr_all;
wire bank_open;
wire row_same;
wire [7:0] obct_cs;
wire any_bank_open;
// Data path Controller Signals
wire dv;
wire pack_le0, pack_le1, pack_le2; // Pack Latch Enable
wire par_err;
wire [31:0] mc_data_od;
wire [3:0] mc_dp_od;
wire [23:0] mc_addr_d;
wire [35:0] mc_data_ir;
// Refresh Counter Signals
wire rfr_req;
wire rfr_ack;
wire [7:0] rfr_ps_val;
// Memory Timing Block Signals
wire data_oe;
wire oe_;
wire we_;
wire cas_;
wire ras_;
wire cke_;
wire lmr_req;
wire lmr_ack;
wire init_req;
wire init_ack;
wire [7:0] spec_req_cs;
wire cs_en;
wire wb_cycle, wr_cycle;
wire [31:0] tms_s;
wire [31:0] csc_s;
wire mc_c_oe_d;
wire mc_br_r;
wire mc_bg_d;
wire mc_adsc_d;
wire mc_adv_d;
wire mc_ack_r;
wire err;
wire mc_sts_i;
////////////////////////////////////////////////////////////////////
//
// Misc Logic
//
assign obct_cs = (rfr_ack | susp_sel) ? cs_need_rfr :
(lmr_ack | init_ack) ? spec_req_cs : cs;
assign lmr_sel = lmr_ack | init_ack;
assign tms_s = lmr_sel ? sp_tms : tms;
assign csc_s = lmr_sel ? sp_csc : csc;
wire not_mem_cyc;
assign not_mem_cyc = wb_cyc_i & wb_stb_i & !( `MC_MEM_SEL );
reg mem_ack_r;
always @(posedge clk_i)
mem_ack_r <= #1 mem_ack;
////////////////////////////////////////////////////////////////////
//
// Modules
//
mc_rf u0(
.clk( clk_i ),
.rst( rst_i ),
.wb_data_i( wb_data_i ),
.rf_dout( rf_dout ),
.wb_addr_i( wb_addr_i ),
.wb_we_i( wb_we_i ),
.wb_cyc_i( wb_cyc_i ),
.wb_stb_i( wb_stb_i ),
.wb_ack_o( ),
.wp_err( wp_err ),
.csc( csc ),
.tms( tms ),
.poc( poc_o ),
.sp_csc( sp_csc ),
.sp_tms( sp_tms ),
.cs( cs ),
.mc_data_i( mc_data_ir[31:0]),
.mc_sts( mc_sts_ir ),
.mc_vpen( mc_vpen_pad_o ),
.fs( fs ),
.cs_le( cs_le ),
.cs_le_d( cs_le_d ),
.cs_need_rfr( cs_need_rfr ),
.ref_int( ref_int ),
.rfr_ps_val( rfr_ps_val ),
.spec_req_cs( spec_req_cs ),
.init_req( init_req ),
.init_ack( init_ack ),
.lmr_req( lmr_req ),
.lmr_ack( lmr_ack )
);
mc_adr_sel u1(
.clk( clk_i ),
.csc( csc_s ),
.tms( tms_s ),
.wb_stb_i( wb_stb_i ),
//.wb_ack_o( wb_ack_o ),
.wb_ack_o( mem_ack_r ),
.wb_addr_i( wb_addr_i ),
.wb_we_i( wb_we_i ),
.wb_write_go( wb_write_go ),
.wr_hold( wr_hold ),
.cas_( cas_ ),
.mc_addr( mc_addr_d ),
.row_adr( row_adr ),
.bank_adr( bank_adr ),
.rfr_ack( rfr_ack ),
.cs_le( cs_le ),
.cmd_a10( cmd_a10 ),
.row_sel( row_sel ),
.lmr_sel( lmr_sel ),
.next_adr( next_adr ),
.wr_cycle( wr_cycle ),
.page_size( page_size )
);
mc_obct_top u2(
.clk( clk_i ),
.rst( rst_i ),
.cs( obct_cs ),
.row_adr( row_adr ),
.bank_adr( bank_adr ),
.bank_set( bank_set ),
.bank_clr( bank_clr ),
.bank_clr_all( bank_clr_all ),
.bank_open( bank_open ),
.any_bank_open( any_bank_open ),
.row_same( row_same ),
.rfr_ack( rfr_ack )
);
mc_dp u3(
.clk( clk_i ),
.rst( rst_i ),
.csc( csc ),
.wb_cyc_i( wb_cyc_i ),
.wb_stb_i( wb_stb_i ),
.mem_ack( mem_ack ),
//.wb_ack_o( wb_ack_o ),
.wb_ack_o( mem_ack_r ),
.wb_we_i( wb_we_i ),
.wb_data_i( wb_data_i ),
.wb_data_o( mem_dout ),
.wb_read_go( wb_read_go ),
.mc_clk( mc_clk_i ),
.mc_data_del( mc_data_ir ),
.mc_dp_i( mc_dp_pad_i ),
.mc_data_o( mc_data_od ),
.mc_dp_o( mc_dp_od ),
.dv( dv ),
.pack_le0( pack_le0 ),
.pack_le1( pack_le1 ),
.pack_le2( pack_le2 ),
.byte_en( wb_sel_i ),
.par_err( par_err )
);
mc_refresh u4(
.clk( clk_i ),
.rst( rst_i ),
.cs_need_rfr( cs_need_rfr ),
.ref_int( ref_int ),
.rfr_req( rfr_req ),
.rfr_ack( rfr_ack ),
.rfr_ps_val( rfr_ps_val )
);
mc_timing u5(
.clk( clk_i ),
.mc_clk( mc_clk_i ),
.rst( rst_i ),
.wb_cyc_i( wb_cyc_i ),
.wb_stb_i( wb_stb_i ),
.wb_we_i( wb_we_i ),
.wb_read_go( wb_read_go ),
.wb_write_go( wb_write_go ),
.wb_first( wb_first ),
.wb_wait( wb_wait ),
.mem_ack( mem_ack ),
.err( err ),
.susp_req( susp_req_i ),
.resume_req( resume_req_i ),
.suspended( suspended_o ),
.susp_sel( susp_sel ),
.mc_br( mc_br_r ),
.mc_bg( mc_bg_d ),
.mc_ack( mc_ack_r ),
.not_mem_cyc( not_mem_cyc ),
.data_oe( data_oe ),
.oe_( oe_ ),
.we_( we_ ),
.cas_( cas_ ),
.ras_( ras_ ),
.cke_( cke_ ),
.cs_en( cs_en ),
.mc_adsc( mc_adsc_d ),
.mc_adv( mc_adv_d ),
.mc_c_oe( mc_c_oe_d ),
.wb_cycle( wb_cycle ),
.wr_cycle( wr_cycle ),
.csc( csc_s ),
.tms( tms_s ),
.cs( obct_cs ),
.lmr_req( lmr_req ),
.lmr_ack( lmr_ack ),
.cs_le( cs_le ),
.cs_le_d( cs_le_d ),
.cmd_a10( cmd_a10 ),
.row_sel( row_sel ),
.next_adr( next_adr ),
.page_size( page_size ),
.bank_set( bank_set ),
.bank_clr( bank_clr ),
.bank_clr_all( bank_clr_all ),
.bank_open( bank_open ),
.any_bank_open( any_bank_open ),
.row_same( row_same ),
.dv( dv ),
.pack_le0( pack_le0 ),
.pack_le1( pack_le1 ),
.pack_le2( pack_le2 ),
.par_err( par_err ),
.rfr_req( rfr_req ),
.rfr_ack( rfr_ack ),
.init_req( init_req ),
.init_ack( init_ack )
);
mc_wb_if u6(
.clk( clk_i ),
.rst( rst_i ),
.wb_addr_i( wb_addr_i ),
.wb_cyc_i( wb_cyc_i ),
.wb_stb_i( wb_stb_i ),
.wb_we_i( wb_we_i ),
.wb_ack_o( wb_ack_o ),
.wb_err( wb_err_o ),
.wb_read_go( wb_read_go ),
.wb_write_go( wb_write_go ),
.wb_first( wb_first ),
.wb_wait( wb_wait ),
.mem_ack( mem_ack ),
.wr_hold( wr_hold ),
.err( err ),
.par_err( par_err ),
.wp_err( wp_err ),
.wb_data_o( wb_data_o ),
.mem_dout( mem_dout ),
.rf_dout( rf_dout )
);
mc_mem_if u7(
.clk( clk_i ),
.rst( rst_i ),
.mc_rp( mc_rp_pad_o_ ),
.mc_clk( mc_clk_i ),
.mc_br( mc_br_pad_i ),
.mc_bg( mc_bg_pad_o ),
.mc_addr( mc_addr_pad_o ),
.mc_data_o( mc_data_pad_o ),
.mc_dp_o( mc_dp_pad_o ),
.mc_data_oe( mc_doe_pad_doe_o),
.mc_dqm( mc_dqm_pad_o ),
.mc_oe_( mc_oe_pad_o_ ),
.mc_we_( mc_we_pad_o_ ),
.mc_cas_( mc_cas_pad_o_ ),
.mc_ras_( mc_ras_pad_o_ ),
.mc_cke_( mc_cke_pad_o_ ),
.mc_cs_( mc_cs_pad_o_ ),
.mc_adsc_( mc_adsc_pad_o_ ),
.mc_adv_( mc_adv_pad_o_ ),
.mc_br_r( mc_br_r ),
.mc_bg_d( mc_bg_d ),
.mc_data_od( mc_data_od ),
.mc_dp_od( mc_dp_od ),
.mc_addr_d( mc_addr_d ),
.mc_ack( mc_ack_pad_i ),
.mc_zz_o( mc_zz_pad_o ),
.we_( we_ ),
.ras_( ras_ ),
.cas_( cas_ ),
.cke_( cke_ ),
.mc_adsc_d( mc_adsc_d ),
.mc_adv_d( mc_adv_d ),
.cs_en( cs_en ),
.rfr_ack( rfr_ack ),
.cs_need_rfr( cs_need_rfr ),
.lmr_sel( lmr_sel ),
.spec_req_cs( spec_req_cs ),
.cs( cs ),
.fs( fs ),
.data_oe( data_oe ),
.susp_sel( susp_sel ),
.suspended_o( suspended_o ),
.mc_c_oe( mc_coe_pad_coe_o),
.mc_c_oe_d( mc_c_oe_d ),
.mc_ack_r( mc_ack_r ),
.oe_( oe_ ),
.wb_cyc_i( wb_cyc_i ),
.wb_stb_i( wb_stb_i ),
.wb_sel_i( wb_sel_i ),
.wb_cycle( wb_cycle ),
.wr_cycle( wr_cycle ),
.mc_data_i( mc_data_pad_i ),
.mc_dp_i( mc_dp_pad_i ),
.mc_data_ir( mc_data_ir ),
.mc_sts_i( mc_sts_pad_i ),
.mc_sts_ir( mc_sts_ir )
);
endmodule