| /* |
| * top.v |
| * |
| * vim: ts=4 sw=4 |
| * |
| * Top-level for the icE1usb production boards |
| * |
| * Copyright (C) 2019-2020 Sylvain Munaut <tnt@246tNt.com> |
| * SPDX-License-Identifier: CERN-OHL-S-2.0 |
| */ |
| |
| `default_nettype none |
| |
| module top ( |
| // E1 PHY |
| input wire e1A_rx_hi_p, |
| // input wire e1A_rx_hi_n, |
| input wire e1A_rx_lo_p, |
| // input wire e1A_rx_lo_n, |
| output wire e1A_tx_hi, |
| output wire e1A_tx_lo, |
| |
| input wire e1B_rx_hi_p, |
| // input wire e1B_rx_hi_n, |
| input wire e1B_rx_lo_p, |
| // input wire e1B_rx_lo_n, |
| output wire e1B_tx_hi, |
| output wire e1B_tx_lo, |
| |
| output wire [1:0] e1_rx_bias, |
| |
| // USB |
| inout wire usb_dp, |
| inout wire usb_dn, |
| output wire usb_pu, |
| |
| // Flash |
| inout wire flash_mosi, |
| inout wire flash_miso, |
| inout wire flash_clk, |
| inout wire flash_cs_n, |
| |
| // LED Shift register + Button input |
| inout wire e1_led_rclk, |
| |
| // GPS |
| output wire gps_reset_n, |
| input wire gps_rx, |
| output wire gps_tx, |
| input wire gps_pps, |
| |
| // I2C |
| inout wire i2c_sda, |
| inout wire i2c_scl, |
| |
| // GPIOs |
| inout wire [2:0] gpio, |
| |
| // Clock (30.72 MHz) |
| input wire clk_in, |
| output wire clk_tune_hi, |
| output wire clk_tune_lo, |
| |
| // Debug UART |
| input wire dbg_rx, |
| output wire dbg_tx, |
| |
| // RGB LEDs |
| output wire [2:0] rgb |
| ); |
| |
| localparam integer WB_N = 3; |
| |
| genvar i; |
| |
| |
| // Signals |
| // ------- |
| |
| // Flash SPI internal signals |
| wire flash_mosi_i, flash_miso_i, flash_clk_i; |
| wire flash_mosi_o, flash_miso_o, flash_clk_o; |
| wire flash_mosi_oe, flash_miso_oe, flash_clk_oe; |
| wire flash_csn_o; |
| |
| // Peripheral wishbone |
| wire [15:0] wb_addr; |
| wire [31:0] wb_rdata [0:WB_N-1]; |
| wire [31:0] wb_wdata; |
| wire [ 3:0] wb_wmsk; |
| wire wb_we; |
| wire [WB_N-1:0] wb_cyc; |
| wire [WB_N-1:0] wb_ack; |
| |
| wire [(WB_N*32)-1:0] wb_rdata_flat; |
| |
| // Ticks |
| wire [1:0] tick_e1_rx; |
| wire [1:0] tick_e1_tx; |
| wire tick_usb_sof; |
| |
| // I2C |
| wire i2c_scl_oe; |
| wire i2c_sda_oe; |
| wire i2c_sda_i; |
| |
| // Led & Button |
| wire [7:0] e1_led_state; |
| wire e1_led_run; |
| wire e1_led_active; |
| |
| wire spi_req; |
| wire spi_gnt; |
| |
| wire [7:0] sr_val; |
| wire sr_go; |
| wire sr_rdy; |
| |
| wire btn_val; |
| wire btn_stb; |
| |
| // Clocks / Reset |
| wire rst_req; |
| |
| wire clk_sys; |
| wire rst_sys; |
| wire clk_48m; |
| wire rst_48m; |
| |
| |
| // SoC base |
| // -------- |
| |
| // Instance |
| soc_base #( |
| .WB_N(WB_N), |
| .E1_N(2), |
| .E1_UNIT_HAS_RX(2'b01), |
| .E1_UNIT_HAS_TX(2'b01), |
| .E1_LIU(0) |
| ) soc_I ( |
| .e1_rx_hi_p ({e1B_rx_hi_p, e1A_rx_hi_p}), |
| // .e1_rx_hi_n ({e1B_rx_hi_n, e1A_rx_hi_n}), |
| .e1_rx_lo_p ({e1B_rx_lo_p, e1A_rx_lo_p}), |
| // .e1_rx_lo_n ({e1B_rx_lo_n, e1A_rx_lo_n}), |
| .e1_tx_hi ({e1B_tx_hi, e1A_tx_hi }), |
| .e1_tx_lo ({e1B_tx_lo, e1A_tx_lo }), |
| .e1_rx_data (), |
| .e1_rx_clk (), |
| .e1_tx_data (), |
| .e1_tx_clk (), |
| .usb_dp (usb_dp), |
| .usb_dn (usb_dn), |
| .usb_pu (usb_pu), |
| .flash_mosi_i (flash_mosi_i), |
| .flash_mosi_o (flash_mosi_o), |
| .flash_mosi_oe(flash_mosi_oe), |
| .flash_miso_i (flash_miso_i), |
| .flash_miso_o (flash_miso_o), |
| .flash_miso_oe(flash_miso_oe), |
| .flash_clk_i (flash_clk_i), |
| .flash_clk_o (flash_clk_o), |
| .flash_clk_oe (flash_clk_oe), |
| .flash_csn_o (flash_csn_o), |
| .dbg_rx (dbg_rx), |
| .dbg_tx (dbg_tx), |
| .rgb (rgb), |
| .wb_m_addr (wb_addr), |
| .wb_m_rdata (wb_rdata_flat), |
| .wb_m_wdata (wb_wdata), |
| .wb_m_wmsk (wb_wmsk), |
| .wb_m_we (wb_we), |
| .wb_m_cyc (wb_cyc), |
| .wb_m_ack (wb_ack), |
| .tick_e1_rx (tick_e1_rx), |
| .tick_e1_tx (tick_e1_tx), |
| .tick_usb_sof (tick_usb_sof), |
| .clk_sys (clk_sys), |
| .rst_sys (rst_sys), |
| .clk_48m (clk_48m), |
| .rst_48m (rst_48m) |
| ); |
| |
| // WB read data flattening |
| for (i=0; i<WB_N; i=i+1) |
| assign wb_rdata_flat[i*32+:32] = wb_rdata[i]; |
| |
| |
| // Dummy channel |
| // ------------- |
| |
| wire [1:0] e1_dummy; |
| |
| SB_IO #( |
| .PIN_TYPE(6'b000000), |
| .PULLUP(1'b0), |
| .NEG_TRIGGER(1'b0), |
| .IO_STANDARD("SB_LVDS_INPUT") |
| ) e1_dummy_rx_I[1:0] ( |
| .PACKAGE_PIN({e1B_rx_hi_p, e1B_rx_lo_p}), |
| .LATCH_INPUT_VALUE(1'b0), |
| .CLOCK_ENABLE(1'b1), |
| .INPUT_CLK(clk_sys), |
| .OUTPUT_CLK(1'b0), |
| .OUTPUT_ENABLE(1'b0), |
| .D_OUT_0(1'b0), |
| .D_OUT_1(1'b0), |
| .D_IN_0(e1_dummy), |
| .D_IN_1() |
| ); |
| |
| SB_IO #( |
| .PIN_TYPE(6'b010100), |
| .PULLUP(1'b0), |
| .NEG_TRIGGER(1'b0), |
| .IO_STANDARD("SB_LVCMOS") |
| ) e1_dummy_tx_I[1:0] ( |
| .PACKAGE_PIN({e1B_tx_hi, e1B_tx_lo}), |
| .LATCH_INPUT_VALUE(1'b0), |
| .CLOCK_ENABLE(1'b1), |
| .INPUT_CLK(1'b0), |
| .OUTPUT_CLK(clk_sys), |
| .OUTPUT_ENABLE(1'b0), |
| .D_OUT_0(e1_dummy), |
| .D_OUT_1(1'b0), |
| .D_IN_0(), |
| .D_IN_1() |
| ); |
| |
| |
| // Misc [0] |
| // ---- |
| |
| misc misc_I ( |
| .e1_rx_bias (e1_rx_bias), |
| .clk_tune_hi (clk_tune_hi), |
| .clk_tune_lo (clk_tune_lo), |
| .gps_reset_n (gps_reset_n), |
| .gps_pps (gps_pps), |
| .gpio (gpio), |
| .e1_led_state (e1_led_state), |
| .e1_led_run (e1_led_run), |
| .e1_led_active (e1_led_active), |
| .btn_val (btn_val), |
| .btn_stb (btn_stb), |
| .tick_e1_rx (tick_e1_rx), |
| .tick_e1_tx (tick_e1_tx), |
| .tick_usb_sof (tick_usb_sof), |
| .rst_req (rst_req), |
| .wb_addr (wb_addr[7:0]), |
| .wb_rdata (wb_rdata[0]), |
| .wb_wdata (wb_wdata), |
| .wb_we (wb_we), |
| .wb_cyc (wb_cyc[0]), |
| .wb_ack (wb_ack[0]), |
| .clk (clk_sys), |
| .rst (rst_sys) |
| ); |
| |
| |
| // GPS UART [1] |
| // -------- |
| |
| uart_wb #( |
| .DIV_WIDTH(12), |
| .DW(32) |
| ) gps_uart_I ( |
| .uart_tx (gps_tx), |
| .uart_rx (gps_rx), |
| .wb_addr (wb_addr[1:0]), |
| .wb_rdata (wb_rdata[1]), |
| .wb_wdata (wb_wdata), |
| .wb_we (wb_we), |
| .wb_cyc (wb_cyc[1]), |
| .wb_ack (wb_ack[1]), |
| .clk (clk_sys), |
| .rst (rst_sys) |
| ); |
| |
| |
| // I2C [2] |
| // --- |
| |
| // Controller |
| i2c_master_wb #( |
| .DW(3), |
| .FIFO_DEPTH(0) |
| ) i2c_I ( |
| .scl_oe (i2c_scl_oe), |
| .sda_oe (i2c_sda_oe), |
| .sda_i (i2c_sda_i), |
| .wb_rdata(wb_rdata[2]), |
| .wb_wdata(wb_wdata), |
| .wb_we (wb_we), |
| .wb_cyc (wb_cyc[2]), |
| .wb_ack (wb_ack[2]), |
| .ready (), |
| .clk (clk_sys), |
| .rst (rst_sys) |
| ); |
| |
| // IOBs |
| SB_IO #( |
| .PIN_TYPE(6'b110101), |
| .PULLUP(1'b1), |
| .IO_STANDARD("SB_LVCMOS") |
| ) i2c_scl_iob_I ( |
| .PACKAGE_PIN (i2c_scl), |
| .OUTPUT_CLK (clk_sys), |
| .OUTPUT_ENABLE(i2c_scl_oe), |
| .D_OUT_0 (1'b0) |
| ); |
| |
| SB_IO #( |
| .PIN_TYPE(6'b110100), |
| .PULLUP(1'b1), |
| .IO_STANDARD("SB_LVCMOS") |
| ) i2c_sda_iob_I ( |
| .PACKAGE_PIN (i2c_sda), |
| .INPUT_CLK (clk_sys), |
| .OUTPUT_CLK (clk_sys), |
| .OUTPUT_ENABLE(i2c_sda_oe), |
| .D_OUT_0 (1'b0), |
| .D_IN_0 (i2c_sda_i) |
| ); |
| |
| |
| // E1 LEDs & Button |
| // ---------------- |
| |
| // Blink pattern generator |
| led_blinker blinker_I ( |
| .led_state(e1_led_state), |
| .sr_val (sr_val), |
| .sr_go (sr_go), |
| .sr_rdy (sr_rdy), |
| .clk (clk_sys), |
| .rst (rst_sys) |
| ); |
| |
| // Interface |
| sr_btn_if #( |
| .TICK_LOG2_DIV(3) |
| ) spi_mux_I ( |
| .flash_mosi (flash_mosi), |
| .flash_miso (flash_miso), |
| .flash_clk (flash_clk), |
| .flash_cs_n (flash_cs_n), |
| .e1_led_rclk (e1_led_rclk), |
| .spi_mosi_i (flash_mosi_i), |
| .spi_mosi_o (flash_mosi_o), |
| .spi_mosi_oe (flash_mosi_oe), |
| .spi_miso_i (flash_miso_i), |
| .spi_miso_o (flash_miso_o), |
| .spi_miso_oe (flash_miso_oe), |
| .spi_clk_i (flash_clk_i), |
| .spi_clk_o (flash_clk_o), |
| .spi_clk_oe (flash_clk_oe), |
| .spi_csn_o (flash_csn_o), |
| .spi_csn_oe (1'b1), |
| .spi_req (spi_req), |
| .spi_gnt (spi_gnt), |
| .sr_val (sr_val), |
| .sr_go (sr_go), |
| .sr_rdy (sr_rdy), |
| .btn_val (btn_val), |
| .btn_stb (btn_stb), |
| .clk (clk_sys), |
| .rst (rst_sys) |
| ); |
| |
| assign spi_req = ~e1_led_run; |
| assign e1_led_active = ~spi_gnt; |
| |
| |
| // Clock / Reset |
| // ------------- |
| |
| sysmgr sys_mgr_I ( |
| .clk_in (clk_in), |
| .rst_in (rst_req), |
| .clk_sys(clk_sys), |
| .rst_sys(rst_sys), |
| .clk_48m(clk_48m), |
| .rst_48m(rst_48m) |
| ); |
| |
| endmodule // top |