| ////////////////////////////////////////////////////////////////////////////// |
| // SPDX-FileCopyrightText: 2021 , Dinesh Annayya |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // SPDX-License-Identifier: Apache-2.0 |
| // SPDX-FileContributor: Created by Dinesh Annayya <dinesha@opencores.org> |
| // |
| ////////////////////////////////////////////////////////////////////// |
| //// //// |
| //// Digital core //// |
| //// //// |
| //// This file is part of the YIFive cores project //// |
| //// https://github.com/dineshannayya/yifive_r0.git //// |
| //// http://www.opencores.org/cores/yifive/ //// |
| //// //// |
| //// Description //// |
| //// This is digital core and integrate all the main block //// |
| //// here. Following block are integrated here //// |
| //// 1. Risc V Core //// |
| //// 2. SPI Master //// |
| //// 3. Wishbone Cross Bar //// |
| //// //// |
| //// To Do: //// |
| //// nothing //// |
| //// //// |
| //// Author(s): //// |
| //// - Dinesh Annayya, dinesha@opencores.org //// |
| //// //// |
| //// Revision : //// |
| //// 0.1 - 16th Feb 2021, Dinesh A //// |
| //// Initial integration with Risc-V core + //// |
| //// Wishbone Cross Bar + SPI Master //// |
| //// 0.2 - 17th June 2021, Dinesh A //// |
| //// 1. In risc core, wishbone and core domain is //// |
| //// created //// |
| //// 2. cpu and rtc clock are generated in glbl reg block //// |
| //// 3. in wishbone interconnect:- Stagging flop are added //// |
| //// at interface to break wishbone timing path //// |
| //// 4. buswidth warning are fixed inside spi_master //// |
| //// modified rtl files are //// |
| //// verilog/rtl/digital_core/src/digital_core.sv //// |
| //// verilog/rtl/digital_core/src/glbl_cfg.sv //// |
| //// verilog/rtl/lib/wb_stagging.sv //// |
| //// verilog/rtl/syntacore/scr1/src/top/scr1_dmem_wb.sv //// |
| //// verilog/rtl/syntacore/scr1/src/top/scr1_imem_wb.sv //// |
| //// verilog/rtl/syntacore/scr1/src/top/scr1_top_wb.sv //// |
| //// verilog/rtl/user_project_wrapper.v //// |
| //// verilog/rtl/wb_interconnect/src/wb_interconnect.sv //// |
| //// verilog/rtl/spi_master/src/spim_clkgen.sv //// |
| //// verilog/rtl/spi_master/src/spim_ctrl.sv //// |
| //// 0.3 - 20th June 2021, Dinesh A //// |
| //// 1. uart core is integrated //// |
| //// 2. 3rd Slave ported added to wishbone interconnect //// |
| //// 0.4 - 25th June 2021, Dinesh A //// |
| //// Moved the pad logic inside sdram,spi,uart block to //// |
| //// avoid logic at digital core level //// |
| //// 0.5 - 25th June 2021, Dinesh A //// |
| //// Since carvel gives only 16MB address space for user //// |
| //// space, we have implemented indirect address select //// |
| //// with 8 bit bank select given inside wb_host //// |
| //// core Address = {Bank_Sel[7:0], Wb_Address[23:0] //// |
| //// caravel user address space is //// |
| //// 0x3000_0000 to 0x30FF_FFFF //// |
| //// 0.6 - 27th June 2021, Dinesh A //// |
| //// Digital core level tie are moved inside IP to avoid //// |
| //// power hook up at core level //// |
| //// u_risc_top - test_mode & test_rst_n //// |
| //// u_intercon - s*_wbd_err_i //// |
| //// unused wb_cti_i is removed from u_sdram_ctrl //// |
| //// 0.7 - 28th June 2021, Dinesh A //// |
| //// wb_interconnect master port are interchanged for //// |
| //// better physical placement. //// |
| //// m0 - External HOST //// |
| //// m1 - RISC IMEM //// |
| //// m2 - RISC DMEM //// |
| //// 0.8 - 6th July 2021, Dinesh A //// |
| //// For Better SDRAM Interface timing we have taping //// |
| //// sdram_clock goint to io_out[29] directly from //// |
| //// global register block, this help in better SDRAM //// |
| //// interface timing control //// |
| //// 0.9 - 7th July 2021, Dinesh A //// |
| //// Removed 2 Unused port connection io_in[31:30] to //// |
| //// spi_master to avoid lvs issue //// |
| //// 1.0 - 28th July 2021, Dinesh A //// |
| //// i2cm integrated part of uart_i2cm module, //// |
| //// due to number of IO pin limitation, //// |
| //// Only UART OR I2C selected based on config mode //// |
| //// //// |
| ////////////////////////////////////////////////////////////////////// |
| //// //// |
| //// Copyright (C) 2000 Authors and OPENCORES.ORG //// |
| //// //// |
| //// 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 source file is free software; you can redistribute it //// |
| //// and/or modify it under the terms of the GNU Lesser General //// |
| //// Public License as published by the Free Software Foundation; //// |
| //// either version 2.1 of the License, or (at your option) any //// |
| //// later version. //// |
| //// //// |
| //// This source is distributed in the hope that it will be //// |
| //// useful, but WITHOUT ANY WARRANTY; without even the implied //// |
| //// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //// |
| //// PURPOSE. See the GNU Lesser General Public License for more //// |
| //// details. //// |
| //// //// |
| //// You should have received a copy of the GNU Lesser General //// |
| //// Public License along with this source; if not, download it //// |
| //// from http://www.opencores.org/lgpl.shtml //// |
| //// //// |
| ////////////////////////////////////////////////////////////////////// |
| |
| |
| module user_project_wrapper ( |
| `ifdef USE_POWER_PINS |
| inout vdda1, // User area 1 3.3V supply |
| inout vdda2, // User area 2 3.3V supply |
| inout vssa1, // User area 1 analog ground |
| inout vssa2, // User area 2 analog ground |
| inout vccd1, // User area 1 1.8V supply |
| inout vccd2, // User area 2 1.8v supply |
| inout vssd1, // User area 1 digital ground |
| inout vssd2, // User area 2 digital ground |
| `endif |
| input wire wb_clk_i , // System clock |
| input wire user_clock2 , // user Clock |
| input wire wb_rst_i , // Regular Reset signal |
| |
| input wire wbs_cyc_i , // strobe/request |
| input wire wbs_stb_i , // strobe/request |
| input wire [WB_WIDTH-1:0] wbs_adr_i , // address |
| input wire wbs_we_i , // write |
| input wire [WB_WIDTH-1:0] wbs_dat_i , // data output |
| input wire [3:0] wbs_sel_i , // byte enable |
| output wire [WB_WIDTH-1:0] wbs_dat_o , // data input |
| output wire wbs_ack_o , // acknowlegement |
| |
| // Analog (direct connection to GPIO pad---use with caution) |
| // Note that analog I/O is not available on the 7 lowest-numbered |
| // GPIO pads, and so the analog_io indexing is offset from the |
| // GPIO indexing by 7 (also upper 2 GPIOs do not have analog_io). |
| inout [`MPRJ_IO_PADS-10:0] analog_io, |
| |
| // Logic Analyzer Signals |
| input wire [127:0] la_data_in , |
| output wire [127:0] la_data_out , |
| input wire [127:0] la_oenb , |
| |
| |
| // IOs |
| input wire [37:0] io_in , |
| output wire [37:0] io_out , |
| output wire [37:0] io_oeb , |
| |
| output wire [2:0] user_irq |
| |
| ); |
| |
| //--------------------------------------------------- |
| // Local Parameter Declaration |
| // -------------------------------------------------- |
| |
| parameter SDR_DW = 8; // SDR Data Width |
| parameter SDR_BW = 1; // SDR Byte Width |
| parameter WB_WIDTH = 32; // WB ADDRESS/DARA WIDTH |
| |
| //--------------------------------------------------------------------- |
| // Wishbone Risc V Instruction Memory Interface |
| //--------------------------------------------------------------------- |
| wire wbd_riscv_imem_stb_i; // strobe/request |
| wire [WB_WIDTH-1:0] wbd_riscv_imem_adr_i; // address |
| wire wbd_riscv_imem_we_i; // write |
| wire [WB_WIDTH-1:0] wbd_riscv_imem_dat_i; // data output |
| wire [3:0] wbd_riscv_imem_sel_i; // byte enable |
| wire [WB_WIDTH-1:0] wbd_riscv_imem_dat_o; // data input |
| wire wbd_riscv_imem_ack_o; // acknowlegement |
| wire wbd_riscv_imem_err_o; // error |
| |
| //--------------------------------------------------------------------- |
| // RISC V Wishbone Data Memory Interface |
| //--------------------------------------------------------------------- |
| wire wbd_riscv_dmem_stb_i; // strobe/request |
| wire [WB_WIDTH-1:0] wbd_riscv_dmem_adr_i; // address |
| wire wbd_riscv_dmem_we_i; // write |
| wire [WB_WIDTH-1:0] wbd_riscv_dmem_dat_i; // data output |
| wire [3:0] wbd_riscv_dmem_sel_i; // byte enable |
| wire [WB_WIDTH-1:0] wbd_riscv_dmem_dat_o; // data input |
| wire wbd_riscv_dmem_ack_o; // acknowlegement |
| wire wbd_riscv_dmem_err_o; // error |
| |
| //--------------------------------------------------------------------- |
| // WB HOST Interface |
| //--------------------------------------------------------------------- |
| wire wbd_int_cyc_i; // strobe/request |
| wire wbd_int_stb_i; // strobe/request |
| wire [WB_WIDTH-1:0] wbd_int_adr_i; // address |
| wire wbd_int_we_i; // write |
| wire [WB_WIDTH-1:0] wbd_int_dat_i; // data output |
| wire [3:0] wbd_int_sel_i; // byte enable |
| wire [WB_WIDTH-1:0] wbd_int_dat_o; // data input |
| wire wbd_int_ack_o; // acknowlegement |
| wire wbd_int_err_o; // error |
| //--------------------------------------------------------------------- |
| // SPI Master Wishbone Interface |
| //--------------------------------------------------------------------- |
| wire wbd_spim_stb_o; // strobe/request |
| wire [WB_WIDTH-1:0] wbd_spim_adr_o; // address |
| wire wbd_spim_we_o; // write |
| wire [WB_WIDTH-1:0] wbd_spim_dat_o; // data output |
| wire [3:0] wbd_spim_sel_o; // byte enable |
| wire wbd_spim_cyc_o ; |
| wire [WB_WIDTH-1:0] wbd_spim_dat_i; // data input |
| wire wbd_spim_ack_i; // acknowlegement |
| wire wbd_spim_err_i; // error |
| |
| //--------------------------------------------------------------------- |
| // SPI Master Wishbone Interface |
| //--------------------------------------------------------------------- |
| wire wbd_sdram_stb_o ; |
| wire [WB_WIDTH-1:0] wbd_sdram_adr_o ; |
| wire wbd_sdram_we_o ; // 1 - Write, 0 - Read |
| wire [WB_WIDTH-1:0] wbd_sdram_dat_o ; |
| wire [WB_WIDTH/8-1:0] wbd_sdram_sel_o ; // Byte enable |
| wire wbd_sdram_cyc_o ; |
| wire [2:0] wbd_sdram_cti_o ; |
| wire [WB_WIDTH-1:0] wbd_sdram_dat_i ; |
| wire wbd_sdram_ack_i ; |
| |
| //--------------------------------------------------------------------- |
| // Global Register Wishbone Interface |
| //--------------------------------------------------------------------- |
| wire wbd_glbl_stb_o; // strobe/request |
| wire [7:0] wbd_glbl_adr_o; // address |
| wire wbd_glbl_we_o; // write |
| wire [WB_WIDTH-1:0] wbd_glbl_dat_o; // data output |
| wire [3:0] wbd_glbl_sel_o; // byte enable |
| wire wbd_glbl_cyc_o ; |
| wire [WB_WIDTH-1:0] wbd_glbl_dat_i; // data input |
| wire wbd_glbl_ack_i; // acknowlegement |
| wire wbd_glbl_err_i; // error |
| |
| //--------------------------------------------------------------------- |
| // Global Register Wishbone Interface |
| //--------------------------------------------------------------------- |
| wire wbd_uart_stb_o; // strobe/request |
| wire [7:0] wbd_uart_adr_o; // address |
| wire wbd_uart_we_o; // write |
| wire [7:0] wbd_uart_dat_o; // data output |
| wire wbd_uart_sel_o; // byte enable |
| wire wbd_uart_cyc_o ; |
| wire [7:0] wbd_uart_dat_i; // data input |
| wire wbd_uart_ack_i; // acknowlegement |
| wire wbd_uart_err_i; // error |
| |
| //---------------------------------------------------- |
| // CPU Configuration |
| //---------------------------------------------------- |
| wire cpu_rst_n ; |
| wire spi_rst_n ; |
| wire sdram_rst_n ; |
| wire uart_rst_n ;// uart reset |
| wire i2c_rst_n ;// i2c reset |
| wire uart_i2c_sel ;// 0 - uart, 1 - I2C |
| wire sdram_clk ; |
| wire cpu_clk ; |
| wire rtc_clk ; |
| wire wbd_clk_int ; |
| //wire wbd_clk_int1 ; |
| //wire wbd_clk_int2 ; |
| wire wbd_int_rst_n ; |
| //wire wbd_int1_rst_n ; |
| //wire wbd_int2_rst_n ; |
| |
| wire [31:0] fuse_mhartid ; |
| wire [15:0] irq_lines ; |
| wire soft_irq ; |
| |
| wire [7:0] cfg_glb_ctrl ; |
| wire [31:0] cfg_clk_ctrl1 ; |
| wire [31:0] cfg_clk_ctrl2 ; |
| wire [3:0] cfg_cska_wi ; // clock skew adjust for wishbone interconnect |
| wire [3:0] cfg_cska_riscv; // clock skew adjust for riscv |
| wire [3:0] cfg_cska_uart ; // clock skew adjust for uart |
| wire [3:0] cfg_cska_spi ; // clock skew adjust for spi |
| wire [3:0] cfg_cska_sdram; // clock skew adjust for sdram |
| wire [3:0] cfg_cska_glbl ; // clock skew adjust for global reg |
| wire [3:0] cfg_cska_wh ; // clock skew adjust for web host |
| |
| |
| wire wbd_clk_wi ; // clock for wishbone interconnect |
| wire wbd_clk_riscv ; // clock for riscv |
| wire wbd_clk_uart ; // clock for uart |
| wire wbd_clk_spi ; // clock for spi |
| wire wbd_clk_sdram ; // clock for sdram |
| wire wbd_clk_glbl ; // clock for global reg |
| wire wbd_clk_wh ; // clock for global reg |
| |
| wire [3:0] cfg_cska_sd_co; // clock skew adjust for sdram clock out |
| wire [3:0] cfg_cska_sd_ci; // clock skew adjust for sdram clock input |
| wire [3:0] cfg_cska_sp_co; // clock skew adjust for SPI clock out |
| |
| wire io_out_29_ ; // Internally tapped SDRAM clock |
| wire io_in_29_ ; // Clock Skewed Pad SDRAM clock |
| wire io_in_30_ ; // SPI clock out |
| |
| //------------------------------------------------ |
| // Configuration Parameter |
| //------------------------------------------------ |
| wire [1:0] cfg_sdr_width ; // 2'b00 - 32 Bit SDR, 2'b01 - 16 Bit SDR, 2'b1x - 8 Bit |
| wire [1:0] cfg_colbits ; // 2'b00 - 8 Bit column address, |
| wire sdr_init_done ; // Indicate SDRAM Initialisation Done |
| wire [3:0] cfg_sdr_tras_d ; // Active to precharge delay |
| wire [3:0] cfg_sdr_trp_d ; // Precharge to active delay |
| wire [3:0] cfg_sdr_trcd_d ; // Active to R/W delay |
| wire cfg_sdr_en ; // Enable SDRAM controller |
| wire [1:0] cfg_req_depth ; // Maximum Request accepted by SDRAM controller |
| wire [12:0] cfg_sdr_mode_reg ; |
| wire [2:0] cfg_sdr_cas ; // SDRAM CAS Latency |
| wire [3:0] cfg_sdr_trcar_d ; // Auto-refresh period |
| wire [3:0] cfg_sdr_twr_d ; // Write recovery delay |
| wire [11: 0] cfg_sdr_rfsh ; |
| wire [2 : 0] cfg_sdr_rfmax ; |
| |
| wire [31:0] spi_debug ; |
| wire [31:0] sdram_debug ; |
| wire [63:0] riscv_debug ; |
| |
| |
| |
| ///////////////////////////////////////////////////////// |
| // Clock Skew Ctrl |
| //////////////////////////////////////////////////////// |
| |
| assign cfg_cska_wi = cfg_clk_ctrl1[3:0]; |
| assign cfg_cska_riscv = cfg_clk_ctrl1[7:4]; |
| assign cfg_cska_uart = cfg_clk_ctrl1[11:8]; |
| assign cfg_cska_spi = cfg_clk_ctrl1[15:12]; |
| assign cfg_cska_sdram = cfg_clk_ctrl1[19:16]; |
| assign cfg_cska_glbl = cfg_clk_ctrl1[23:20]; |
| assign cfg_cska_wh = cfg_clk_ctrl1[27:24]; |
| |
| assign cfg_cska_sd_co = cfg_clk_ctrl2[3:0]; // SDRAM clock out control |
| assign cfg_cska_sd_ci = cfg_clk_ctrl2[7:4]; // SDRAM clock in control |
| assign cfg_cska_sp_co = cfg_clk_ctrl2[11:8];// SPI clock out control |
| |
| //assign la_data_out = {riscv_debug,spi_debug,sdram_debug}; |
| assign la_data_out[127:0] = {sdram_debug,spi_debug,riscv_debug}; |
| |
| //clk_buf u_buf1_wb_rstn (.clk_i(wbd_int_rst_n),.clk_o(wbd_int1_rst_n)); |
| //clk_buf u_buf2_wb_rstn (.clk_i(wbd_int1_rst_n),.clk_o(wbd_int2_rst_n)); |
| // |
| //clk_buf u_buf1_wbclk (.clk_i(wbd_clk_int),.clk_o(wbd_clk_int1)); |
| //clk_buf u_buf2_wbclk (.clk_i(wbd_clk_int1),.clk_o(wbd_clk_int2)); |
| |
| wb_host u_wb_host( |
| .user_clock1 (wb_clk_i ), |
| .user_clock2 (user_clock2 ), |
| |
| .sdram_clk (sdram_clk ), |
| .cpu_clk (cpu_clk ), |
| .rtc_clk (rtc_clk ), |
| |
| .wbd_int_rst_n (wbd_int_rst_n ), |
| .cpu_rst_n (cpu_rst_n ), |
| .spi_rst_n (spi_rst_n ), |
| .sdram_rst_n (sdram_rst_n ), |
| .uart_rst_n (uart_rst_n ), // uart reset |
| .i2cm_rst_n (i2c_rst_n ), // i2c reset |
| .uart_i2c_sel (uart_i2c_sel ), // 0 - uart, 1 - I2C |
| |
| // Master Port |
| .wbm_rst_i (wb_rst_i ), |
| .wbm_clk_i (wb_clk_i ), |
| .wbm_cyc_i (wbs_cyc_i ), |
| .wbm_stb_i (wbs_stb_i ), |
| .wbm_adr_i (wbs_adr_i ), |
| .wbm_we_i (wbs_we_i ), |
| .wbm_dat_i (wbs_dat_i ), |
| .wbm_sel_i (wbs_sel_i ), |
| .wbm_dat_o (wbs_dat_o ), |
| .wbm_ack_o (wbs_ack_o ), |
| .wbm_err_o ( ), |
| |
| // Slave Port |
| .wbs_clk_out (wbd_clk_int ), |
| .wbs_clk_i (wbd_clk_wh ), |
| .wbs_cyc_o (wbd_int_cyc_i ), |
| .wbs_stb_o (wbd_int_stb_i ), |
| .wbs_adr_o (wbd_int_adr_i ), |
| .wbs_we_o (wbd_int_we_i ), |
| .wbs_dat_o (wbd_int_dat_i ), |
| .wbs_sel_o (wbd_int_sel_i ), |
| .wbs_dat_i (wbd_int_dat_o ), |
| .wbs_ack_i (wbd_int_ack_o ), |
| .wbs_err_i (wbd_int_err_o ), |
| |
| .cfg_clk_ctrl1 (cfg_clk_ctrl1 ), |
| .cfg_clk_ctrl2 (cfg_clk_ctrl2 ) |
| |
| ); |
| |
| |
| |
| |
| //------------------------------------------------------------------------------ |
| // RISC V Core instance |
| //------------------------------------------------------------------------------ |
| scr1_top_wb u_riscv_top ( |
| // Reset |
| .pwrup_rst_n (wbd_int_rst_n ), |
| .rst_n (wbd_int_rst_n ), |
| .cpu_rst_n (cpu_rst_n ), |
| .riscv_debug (riscv_debug ), |
| |
| // Clock |
| .core_clk (cpu_clk ), |
| .rtc_clk (rtc_clk ), |
| |
| // Fuses |
| .fuse_mhartid (fuse_mhartid ), |
| |
| // IRQ |
| .irq_lines (irq_lines ), |
| .soft_irq (soft_irq ), // TODO - Interrupts |
| |
| // DFT |
| // .test_mode (1'b0 ), // Moved inside IP |
| // .test_rst_n (1'b1 ), // Moved inside IP |
| |
| |
| .wb_rst_n (wbd_int_rst_n ), |
| .wb_clk (wbd_clk_riscv ), |
| // Instruction memory interface |
| .wbd_imem_stb_o (wbd_riscv_imem_stb_i ), |
| .wbd_imem_adr_o (wbd_riscv_imem_adr_i ), |
| .wbd_imem_we_o (wbd_riscv_imem_we_i ), |
| .wbd_imem_dat_o (wbd_riscv_imem_dat_i ), |
| .wbd_imem_sel_o (wbd_riscv_imem_sel_i ), |
| .wbd_imem_dat_i (wbd_riscv_imem_dat_o ), |
| .wbd_imem_ack_i (wbd_riscv_imem_ack_o ), |
| .wbd_imem_err_i (wbd_riscv_imem_err_o ), |
| |
| // Data memory interface |
| .wbd_dmem_stb_o (wbd_riscv_dmem_stb_i ), |
| .wbd_dmem_adr_o (wbd_riscv_dmem_adr_i ), |
| .wbd_dmem_we_o (wbd_riscv_dmem_we_i ), |
| .wbd_dmem_dat_o (wbd_riscv_dmem_dat_i ), |
| .wbd_dmem_sel_o (wbd_riscv_dmem_sel_i ), |
| .wbd_dmem_dat_i (wbd_riscv_dmem_dat_o ), |
| .wbd_dmem_ack_i (wbd_riscv_dmem_ack_o ), |
| .wbd_dmem_err_i (wbd_riscv_dmem_err_o ) |
| ); |
| |
| /********************************************************* |
| * SPI Master |
| * This is an implementation of an SPI master that is controlled via an AXI bus. |
| * It has FIFOs for transmitting and receiving data. |
| * It supports both the normal SPI mode and QPI mode with 4 data lines. |
| * *******************************************************/ |
| |
| spim_top |
| #( |
| `ifndef SYNTHESIS |
| .WB_WIDTH (WB_WIDTH) |
| `endif |
| ) u_spi_master |
| ( |
| .mclk (wbd_clk_spi ), |
| .rst_n (spi_rst_n ), |
| |
| .wbd_stb_i (wbd_spim_stb_o ), |
| .wbd_adr_i (wbd_spim_adr_o ), |
| .wbd_we_i (wbd_spim_we_o ), |
| .wbd_dat_i (wbd_spim_dat_o ), |
| .wbd_sel_i (wbd_spim_sel_o ), |
| .wbd_dat_o (wbd_spim_dat_i ), |
| .wbd_ack_o (wbd_spim_ack_i ), |
| .wbd_err_o (wbd_spim_err_i ), |
| |
| .spi_debug (spi_debug ), |
| |
| // Pad Interface |
| .io_in (io_in[35:32] ), // io_in[31:30] unused ports |
| .io_out ({io_out[35:31],io_in_30_} ), |
| .io_oeb (io_oeb[35:30] ) |
| |
| ); |
| |
| |
| sdrc_top |
| `ifndef SYNTHESIS |
| #(.APP_AW(WB_WIDTH), |
| .APP_DW(WB_WIDTH), |
| .APP_BW(4), |
| .SDR_DW(8), |
| .SDR_BW(1)) |
| `endif |
| u_sdram_ctrl ( |
| .cfg_sdr_width (cfg_sdr_width ), |
| .cfg_colbits (cfg_colbits ), |
| .sdram_debug (sdram_debug ), |
| |
| // WB bus |
| .wb_rst_n (wbd_int_rst_n ), |
| .wb_clk_i (wbd_clk_sdram ), |
| |
| .wb_stb_i (wbd_sdram_stb_o ), |
| .wb_addr_i (wbd_sdram_adr_o ), |
| .wb_we_i (wbd_sdram_we_o ), |
| .wb_dat_i (wbd_sdram_dat_o ), |
| .wb_sel_i (wbd_sdram_sel_o ), |
| .wb_cyc_i (wbd_sdram_cyc_o ), |
| .wb_ack_o (wbd_sdram_ack_i ), |
| .wb_dat_o (wbd_sdram_dat_i ), |
| |
| |
| /* Interface to SDRAMs */ |
| .sdram_clk (sdram_clk ), |
| .sdram_resetn (sdram_rst_n ), |
| |
| /** Pad Interface **/ |
| .io_in ({io_in_29_,io_in[28:0]} ), |
| .io_oeb (io_oeb[29:0] ), |
| .io_out ({io_out_29_,io_out[28:0]} ), |
| |
| /* Parameters */ |
| .sdr_init_done (sdr_init_done ), |
| .cfg_req_depth (cfg_req_depth ), //how many req. buffer should hold |
| .cfg_sdr_en (cfg_sdr_en ), |
| .cfg_sdr_mode_reg (cfg_sdr_mode_reg ), |
| .cfg_sdr_tras_d (cfg_sdr_tras_d ), |
| .cfg_sdr_trp_d (cfg_sdr_trp_d ), |
| .cfg_sdr_trcd_d (cfg_sdr_trcd_d ), |
| .cfg_sdr_cas (cfg_sdr_cas ), |
| .cfg_sdr_trcar_d (cfg_sdr_trcar_d ), |
| .cfg_sdr_twr_d (cfg_sdr_twr_d ), |
| .cfg_sdr_rfsh (cfg_sdr_rfsh ), |
| .cfg_sdr_rfmax (cfg_sdr_rfmax ) |
| ); |
| |
| |
| wb_interconnect u_intercon ( |
| .clk_i (wbd_clk_wi ), |
| .rst_n (wbd_int_rst_n ), |
| |
| // Master 0 Interface |
| .m0_wbd_dat_i (wbd_int_dat_i ), |
| .m0_wbd_adr_i (wbd_int_adr_i ), |
| .m0_wbd_sel_i (wbd_int_sel_i ), |
| .m0_wbd_we_i (wbd_int_we_i ), |
| .m0_wbd_cyc_i (wbd_int_cyc_i ), |
| .m0_wbd_stb_i (wbd_int_stb_i ), |
| .m0_wbd_dat_o (wbd_int_dat_o ), |
| .m0_wbd_ack_o (wbd_int_ack_o ), |
| .m0_wbd_err_o (wbd_int_err_o ), |
| |
| // Master 0 Interface |
| .m1_wbd_dat_i (wbd_riscv_imem_dat_i ), |
| .m1_wbd_adr_i (wbd_riscv_imem_adr_i ), |
| .m1_wbd_sel_i (wbd_riscv_imem_sel_i ), |
| .m1_wbd_we_i (wbd_riscv_imem_we_i ), |
| .m1_wbd_cyc_i (wbd_riscv_imem_stb_i ), |
| .m1_wbd_stb_i (wbd_riscv_imem_stb_i ), |
| .m1_wbd_dat_o (wbd_riscv_imem_dat_o ), |
| .m1_wbd_ack_o (wbd_riscv_imem_ack_o ), |
| .m1_wbd_err_o (wbd_riscv_imem_err_o ), |
| |
| // Master 1 Interface |
| .m2_wbd_dat_i (wbd_riscv_dmem_dat_i ), |
| .m2_wbd_adr_i (wbd_riscv_dmem_adr_i ), |
| .m2_wbd_sel_i (wbd_riscv_dmem_sel_i ), |
| .m2_wbd_we_i (wbd_riscv_dmem_we_i ), |
| .m2_wbd_cyc_i (wbd_riscv_dmem_stb_i ), |
| .m2_wbd_stb_i (wbd_riscv_dmem_stb_i ), |
| .m2_wbd_dat_o (wbd_riscv_dmem_dat_o ), |
| .m2_wbd_ack_o (wbd_riscv_dmem_ack_o ), |
| .m2_wbd_err_o (wbd_riscv_dmem_err_o ), |
| |
| |
| // Slave 0 Interface |
| // .s0_wbd_err_i (1'b0 ), - Moved inside IP |
| .s0_wbd_dat_i (wbd_spim_dat_i ), |
| .s0_wbd_ack_i (wbd_spim_ack_i ), |
| .s0_wbd_dat_o (wbd_spim_dat_o ), |
| .s0_wbd_adr_o (wbd_spim_adr_o ), |
| .s0_wbd_sel_o (wbd_spim_sel_o ), |
| .s0_wbd_we_o (wbd_spim_we_o ), |
| .s0_wbd_cyc_o (wbd_spim_cyc_o ), |
| .s0_wbd_stb_o (wbd_spim_stb_o ), |
| |
| // Slave 1 Interface |
| // .s1_wbd_err_i (1'b0 ), - Moved inside IP |
| .s1_wbd_dat_i (wbd_sdram_dat_i ), |
| .s1_wbd_ack_i (wbd_sdram_ack_i ), |
| .s1_wbd_dat_o (wbd_sdram_dat_o ), |
| .s1_wbd_adr_o (wbd_sdram_adr_o ), |
| .s1_wbd_sel_o (wbd_sdram_sel_o ), |
| .s1_wbd_we_o (wbd_sdram_we_o ), |
| .s1_wbd_cyc_o (wbd_sdram_cyc_o ), |
| .s1_wbd_stb_o (wbd_sdram_stb_o ), |
| |
| // Slave 2 Interface |
| // .s2_wbd_err_i (1'b0 ), - Moved inside IP |
| .s2_wbd_dat_i (wbd_glbl_dat_i ), |
| .s2_wbd_ack_i (wbd_glbl_ack_i ), |
| .s2_wbd_dat_o (wbd_glbl_dat_o ), |
| .s2_wbd_adr_o (wbd_glbl_adr_o ), |
| .s2_wbd_sel_o (wbd_glbl_sel_o ), |
| .s2_wbd_we_o (wbd_glbl_we_o ), |
| .s2_wbd_cyc_o (wbd_glbl_cyc_o ), |
| .s2_wbd_stb_o (wbd_glbl_stb_o ), |
| |
| // Slave 3 Interface |
| // .s3_wbd_err_i (1'b0 ), - Moved inside IP |
| .s3_wbd_dat_i (wbd_uart_dat_i ), |
| .s3_wbd_ack_i (wbd_uart_ack_i ), |
| .s3_wbd_dat_o (wbd_uart_dat_o ), |
| .s3_wbd_adr_o (wbd_uart_adr_o ), |
| .s3_wbd_sel_o (wbd_uart_sel_o ), |
| .s3_wbd_we_o (wbd_uart_we_o ), |
| .s3_wbd_cyc_o (wbd_uart_cyc_o ), |
| .s3_wbd_stb_o (wbd_uart_stb_o ) |
| ); |
| |
| glbl_cfg u_glbl_cfg ( |
| |
| .mclk (wbd_clk_glbl ), |
| .reset_n (wbd_int_rst_n ), |
| |
| // Reg Bus Interface Signal |
| .reg_cs (wbd_glbl_stb_o ), |
| .reg_wr (wbd_glbl_we_o ), |
| .reg_addr (wbd_glbl_adr_o ), |
| .reg_wdata (wbd_glbl_dat_o ), |
| .reg_be (wbd_glbl_sel_o ), |
| |
| // Outputs |
| .reg_rdata (wbd_glbl_dat_i ), |
| .reg_ack (wbd_glbl_ack_i ), |
| |
| // Risc configuration |
| .fuse_mhartid (fuse_mhartid ), |
| .irq_lines (irq_lines ), |
| .soft_irq (soft_irq ), |
| .user_irq (user_irq ), |
| |
| // SDRAM Config |
| .cfg_sdr_width (cfg_sdr_width ), |
| .cfg_colbits (cfg_colbits ), |
| |
| /* Parameters */ |
| .sdr_init_done (sdr_init_done ), |
| .cfg_req_depth (cfg_req_depth ), //how many req. buffer should hold |
| .cfg_sdr_en (cfg_sdr_en ), |
| .cfg_sdr_mode_reg (cfg_sdr_mode_reg ), |
| .cfg_sdr_tras_d (cfg_sdr_tras_d ), |
| .cfg_sdr_trp_d (cfg_sdr_trp_d ), |
| .cfg_sdr_trcd_d (cfg_sdr_trcd_d ), |
| .cfg_sdr_cas (cfg_sdr_cas ), |
| .cfg_sdr_trcar_d (cfg_sdr_trcar_d ), |
| .cfg_sdr_twr_d (cfg_sdr_twr_d ), |
| .cfg_sdr_rfsh (cfg_sdr_rfsh ), |
| .cfg_sdr_rfmax (cfg_sdr_rfmax ) |
| |
| |
| ); |
| |
| uart_i2c_top u_uart_i2c ( |
| .uart_rstn (uart_rst_n ), // uart reset |
| .i2c_rstn (i2c_rst_n ), // i2c reset |
| .uart_i2c_sel (uart_i2c_sel ), // 0 - uart, 1 - I2C |
| .app_clk (wbd_clk_uart ), |
| |
| // Reg Bus Interface Signal |
| .reg_cs (wbd_uart_stb_o ), |
| .reg_wr (wbd_uart_we_o ), |
| .reg_addr (wbd_uart_adr_o[5:2] ), |
| .reg_wdata (wbd_uart_dat_o[7:0] ), |
| .reg_be (wbd_uart_sel_o ), |
| |
| // Outputs |
| .reg_rdata (wbd_uart_dat_i[7:0] ), |
| .reg_ack (wbd_uart_ack_i ), |
| |
| // Pad interface |
| .io_in (io_in [37:36] ), |
| .io_oeb (io_oeb[37:36] ), |
| .io_out (io_out[37:36] ) |
| |
| ); |
| |
| //////////////////////////////////////////////////////////////// |
| // Clock Skew adjust module |
| // /////////////////////////////////////////////////////////// |
| |
| // Wishbone interconnect clock skew control |
| clk_skew_adjust u_skew_wi |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (wbd_clk_int ), |
| .sel (cfg_cska_wi ), |
| .clk_out (wbd_clk_wi ) |
| ); |
| |
| // riscv clock skew control |
| clk_skew_adjust u_skew_riscv |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (wbd_clk_int ), |
| .sel (cfg_cska_riscv ), |
| .clk_out (wbd_clk_riscv ) |
| ); |
| |
| // uart clock skew control |
| clk_skew_adjust u_skew_uart |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (wbd_clk_int ), |
| .sel (cfg_cska_uart ), |
| .clk_out (wbd_clk_uart ) |
| ); |
| |
| // spi clock skew control |
| clk_skew_adjust u_skew_spi |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (wbd_clk_int ), |
| .sel (cfg_cska_spi ), |
| .clk_out (wbd_clk_spi ) |
| ); |
| |
| // sdram clock skew control |
| clk_skew_adjust u_skew_sdram |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (wbd_clk_int ), |
| .sel (cfg_cska_sdram ), |
| .clk_out (wbd_clk_sdram ) |
| ); |
| |
| // global clock skew control |
| clk_skew_adjust u_skew_glbl |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (wbd_clk_int ), |
| .sel (cfg_cska_glbl ), |
| .clk_out (wbd_clk_glbl ) |
| ); |
| |
| // wb_host clock skew control |
| clk_skew_adjust u_skew_wh |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (wbd_clk_int ), |
| .sel (cfg_cska_wh ), |
| .clk_out (wbd_clk_wh ) |
| ); |
| |
| // SDRAM clock out clock skew control |
| clk_skew_adjust u_skew_sd_co |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (sdram_clk ), |
| .sel (cfg_cska_sd_co ), |
| .clk_out (io_out[29] ) |
| ); |
| |
| // Clock Skey for PAD SDRAM clock |
| clk_skew_adjust u_skew_sd_ci |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (io_in[29] ), |
| .sel (cfg_cska_sd_ci ), |
| .clk_out (io_in_29_ ) |
| ); |
| |
| // Clock Skey for SPI clock out |
| clk_skew_adjust u_skew_sp_co |
| ( |
| `ifdef USE_POWER_PINS |
| .vccd1 (vccd1 ),// User area 1 1.8V supply |
| .vssd1 (vssd1 ),// User area 1 digital ground |
| `endif |
| .clk_in (io_in_30_ ), |
| .sel (cfg_cska_sp_co ), |
| .clk_out (io_out[30] ) |
| ); |
| |
| endmodule : user_project_wrapper |
