axi2apb_wrap.sv

// Copyright 2014-2018 ETH Zurich and University of Bologna.
// Copyright and related rights are licensed under the Solderpad Hardware
// License, Version 0.51 (the “License”); you may not use this file except in
// compliance with the License.  You may obtain a copy of the License at
// http://solderpad.org/licenses/SHL-0.51. Unless required by applicable law
// or agreed to in writing, software, hardware and materials distributed under
// this 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.

module axi2apb_wrap #(
    parameter int unsigned AXI_ADDR_WIDTH   = 32,
    parameter int unsigned AXI_DATA_WIDTH   = 32,
    parameter int unsigned AXI_USER_WIDTH   = 6,
    parameter int unsigned AXI_ID_WIDTH     = 6,
    parameter int unsigned APB_ADDR_WIDTH   = 32,
    parameter int unsigned APB_DATA_WIDTH   = 32
)(
    input logic     clk_i,
    input logic     rst_ni,
    input logic     test_en_i,

    AXI_BUS.Slave   axi_slave,
    APB_BUS.Master  apb_master
);

    // ----------------
    // AXI2APB WRAPER
    // ----------------
    generate if (AXI_DATA_WIDTH == APB_DATA_WIDTH) begin
        axi2apb #(
            .AXI4_ADDRESS_WIDTH ( AXI_ADDR_WIDTH ),
            .AXI4_RDATA_WIDTH   ( AXI_DATA_WIDTH ),
            .AXI4_WDATA_WIDTH   ( AXI_DATA_WIDTH ),
            .AXI4_ID_WIDTH      ( AXI_ID_WIDTH   ),
            .AXI4_USER_WIDTH    ( AXI_USER_WIDTH ),

            .BUFF_DEPTH_SLAVE   ( 2              ),
            .APB_ADDR_WIDTH     ( APB_ADDR_WIDTH )
        ) axi2apb_i (
            .ACLK       ( clk_i                  ),
            .ARESETn    ( rst_ni                 ),
            .test_en_i  ( test_en_i              ),

            .AWID_i     ( axi_slave.aw_id        ),
            .AWADDR_i   ( axi_slave.aw_addr      ),
            .AWLEN_i    ( axi_slave.aw_len       ),
            .AWSIZE_i   ( axi_slave.aw_size      ),
            .AWBURST_i  ( axi_slave.aw_burst     ),
            .AWLOCK_i   ( axi_slave.aw_lock      ),
            .AWCACHE_i  ( axi_slave.aw_cache     ),
            .AWPROT_i   ( axi_slave.aw_prot      ),
            .AWREGION_i ( axi_slave.aw_region    ),
            .AWUSER_i   ( axi_slave.aw_user      ),
            .AWQOS_i    ( axi_slave.aw_qos       ),
            .AWVALID_i  ( axi_slave.aw_valid     ),
            .AWREADY_o  ( axi_slave.aw_ready     ),

            .WDATA_i    ( axi_slave.w_data       ),
            .WSTRB_i    ( axi_slave.w_strb       ),
            .WLAST_i    ( axi_slave.w_last       ),
            .WUSER_i    ( axi_slave.w_user       ),
            .WVALID_i   ( axi_slave.w_valid      ),
            .WREADY_o   ( axi_slave.w_ready      ),

            .BID_o      ( axi_slave.b_id         ),
            .BRESP_o    ( axi_slave.b_resp       ),
            .BVALID_o   ( axi_slave.b_valid      ),
            .BUSER_o    ( axi_slave.b_user       ),
            .BREADY_i   ( axi_slave.b_ready      ),

            .ARID_i     ( axi_slave.ar_id        ),
            .ARADDR_i   ( axi_slave.ar_addr      ),
            .ARLEN_i    ( axi_slave.ar_len       ),
            .ARSIZE_i   ( axi_slave.ar_size      ),
            .ARBURST_i  ( axi_slave.ar_burst     ),
            .ARLOCK_i   ( axi_slave.ar_lock      ),
            .ARCACHE_i  ( axi_slave.ar_cache     ),
            .ARPROT_i   ( axi_slave.ar_prot      ),
            .ARREGION_i ( axi_slave.ar_region    ),
            .ARUSER_i   ( axi_slave.ar_user      ),
            .ARQOS_i    ( axi_slave.ar_qos       ),
            .ARVALID_i  ( axi_slave.ar_valid     ),
            .ARREADY_o  ( axi_slave.ar_ready     ),

            .RID_o      ( axi_slave.r_id         ),
            .RDATA_o    ( axi_slave.r_data       ),
            .RRESP_o    ( axi_slave.r_resp       ),
            .RLAST_o    ( axi_slave.r_last       ),
            .RUSER_o    ( axi_slave.r_user       ),
            .RVALID_o   ( axi_slave.r_valid      ),
            .RREADY_i   ( axi_slave.r_ready      ),

            .PENABLE    ( apb_master.penable     ),
            .PWRITE     ( apb_master.pwrite      ),
            .PADDR      ( apb_master.paddr       ),
            .PSEL       ( apb_master.psel        ),
            .PWDATA     ( apb_master.pwdata      ),
            .PRDATA     ( apb_master.prdata      ),
            .PREADY     ( apb_master.pready      ),
            .PSLVERR    ( apb_master.pslverr     )
        );
        end else if (AXI_DATA_WIDTH == 64 && APB_DATA_WIDTH == 32) begin
            axi2apb_64_32  #(
                .AXI4_ADDRESS_WIDTH ( AXI_ADDR_WIDTH ),
                .AXI4_RDATA_WIDTH   ( AXI_DATA_WIDTH ),
                .AXI4_WDATA_WIDTH   ( AXI_DATA_WIDTH ),
                .AXI4_ID_WIDTH      ( AXI_ID_WIDTH   ),
                .AXI4_USER_WIDTH    ( AXI_USER_WIDTH ),

                .BUFF_DEPTH_SLAVE   ( 2              ),
                .APB_ADDR_WIDTH     ( APB_ADDR_WIDTH )
            ) axi2apb_i (
                .ACLK       ( clk_i                  ),
                .ARESETn    ( rst_ni                 ),
                .test_en_i  ( test_en_i              ),

                .AWID_i     ( axi_slave.aw_id        ),
                .AWADDR_i   ( axi_slave.aw_addr      ),
                .AWLEN_i    ( axi_slave.aw_len       ),
                .AWSIZE_i   ( axi_slave.aw_size      ),
                .AWBURST_i  ( axi_slave.aw_burst     ),
                .AWLOCK_i   ( axi_slave.aw_lock      ),
                .AWCACHE_i  ( axi_slave.aw_cache     ),
                .AWPROT_i   ( axi_slave.aw_prot      ),
                .AWREGION_i ( axi_slave.aw_region    ),
                .AWUSER_i   ( axi_slave.aw_user      ),
                .AWQOS_i    ( axi_slave.aw_qos       ),
                .AWVALID_i  ( axi_slave.aw_valid     ),
                .AWREADY_o  ( axi_slave.aw_ready     ),

                .WDATA_i    ( axi_slave.w_data       ),
                .WSTRB_i    ( axi_slave.w_strb       ),
                .WLAST_i    ( axi_slave.w_last       ),
                .WUSER_i    ( axi_slave.w_user       ),
                .WVALID_i   ( axi_slave.w_valid      ),
                .WREADY_o   ( axi_slave.w_ready      ),

                .BID_o      ( axi_slave.b_id         ),
                .BRESP_o    ( axi_slave.b_resp       ),
                .BVALID_o   ( axi_slave.b_valid      ),
                .BUSER_o    ( axi_slave.b_user       ),
                .BREADY_i   ( axi_slave.b_ready      ),

                .ARID_i     ( axi_slave.ar_id        ),
                .ARADDR_i   ( axi_slave.ar_addr      ),
                .ARLEN_i    ( axi_slave.ar_len       ),
                .ARSIZE_i   ( axi_slave.ar_size      ),
                .ARBURST_i  ( axi_slave.ar_burst     ),
                .ARLOCK_i   ( axi_slave.ar_lock      ),
                .ARCACHE_i  ( axi_slave.ar_cache     ),
                .ARPROT_i   ( axi_slave.ar_prot      ),
                .ARREGION_i ( axi_slave.ar_region    ),
                .ARUSER_i   ( axi_slave.ar_user      ),
                .ARQOS_i    ( axi_slave.ar_qos       ),
                .ARVALID_i  ( axi_slave.ar_valid     ),
                .ARREADY_o  ( axi_slave.ar_ready     ),

                .RID_o      ( axi_slave.r_id         ),
                .RDATA_o    ( axi_slave.r_data       ),
                .RRESP_o    ( axi_slave.r_resp       ),
                .RLAST_o    ( axi_slave.r_last       ),
                .RUSER_o    ( axi_slave.r_user       ),
                .RVALID_o   ( axi_slave.r_valid      ),
                .RREADY_i   ( axi_slave.r_ready      ),

                .PENABLE    ( apb_master.penable     ),
                .PWRITE     ( apb_master.pwrite      ),
                .PADDR      ( apb_master.paddr       ),
                .PSEL       ( apb_master.psel        ),
                .PWDATA     ( apb_master.pwdata      ),
                .PRDATA     ( apb_master.prdata      ),
                .PREADY     ( apb_master.pready      ),
                .PSLVERR    ( apb_master.pslverr     )
            );
        end
  endgenerate
endmodule