pci_bridge32.v

这是用pci-wishbone核和16450串口核在xilinx的fpga上实现的串口程序

    .pciu_err_bc_out                (pciu_err_bc_out),
    .pciu_err_data_out              (pciu_err_data_out),
    .pciu_err_be_out                (pciu_err_be_out),
    .pciu_err_signal_out            (pciu_err_signal_out),
    .pciu_err_source_out            (pciu_err_source_out),
    .pciu_err_rty_exp_out           (pciu_err_rty_exp_out),
    .pciu_conf_offset_out           (pciu_conf_offset_out),
    .pciu_conf_renable_out          (pciu_conf_renable_out),
    .pciu_conf_wenable_out          (pciu_conf_wenable_out),
    .pciu_conf_be_out               (pciu_conf_be_out),
    .pciu_conf_data_out             (pciu_conf_data_out),
    .pciu_pci_drcomp_pending_out    (pciu_pci_drcomp_pending_out),
    .pciu_pciw_fifo_empty_out       (pciu_pciw_fifo_empty_out)

`ifdef PCI_BIST
    ,
    .mbist_si_i       (mbist_so_o_internal),
    .mbist_so_o       (mbist_so_o),
    .mbist_ctrl_i       (mbist_ctrl_i)
`endif
);


// CONFIGURATION SPACE INPUTS
`ifdef HOST

    wire    [11:0]  conf_w_addr_in          =       wbu_conf_offset_out ;
    wire    [31:0]  conf_w_data_in          =       wbu_conf_data_out ;
    wire            conf_w_we_in            =       wbu_conf_wenable_out ;
    wire            conf_w_re_in            =       wbu_conf_renable_out ;
    wire    [3:0]   conf_w_be_in            =       wbu_conf_be_out     ;
    wire            conf_w_clock            =       wb_clk ;
    wire    [11:0]  conf_r_addr_in          =       pciu_conf_offset_out ;
    wire            conf_r_re_in            =       pciu_conf_renable_out ;

`else
`ifdef GUEST

    wire    [11:0]  conf_r_addr_in          =       wbu_conf_offset_out ;
    wire            conf_r_re_in            =       wbu_conf_renable_out ;
    wire            conf_w_clock            =       pci_clk ;
    wire    [11:0]  conf_w_addr_in          =       pciu_conf_offset_out ;
    wire    [31:0]  conf_w_data_in          =       pciu_conf_data_out ;
    wire            conf_w_we_in            =       pciu_conf_wenable_out ;
    wire            conf_w_re_in            =       pciu_conf_renable_out ;
    wire    [3:0]   conf_w_be_in            =       pciu_conf_be_out ;

`endif
`endif


wire            conf_perr_in                            =   parchk_par_err_detect_out ;
wire            conf_serr_in                            =   parchk_sig_serr_out ;
wire            conf_master_abort_recv_in               =   wbu_mabort_rec_out ;
wire            conf_target_abort_recv_in               =   wbu_tabort_rec_out ;
wire            conf_target_abort_set_in                =   pciu_pciif_tabort_set_out ;

wire            conf_master_data_par_err_in             =   parchk_perr_mas_detect_out ;

wire    [3:0]   conf_pci_err_be_in      = pciu_err_be_out ;
wire    [3:0]   conf_pci_err_bc_in      = pciu_err_bc_out;
wire            conf_pci_err_es_in      = pciu_err_source_out ;
wire            conf_pci_err_rty_exp_in = pciu_err_rty_exp_out ;
wire            conf_pci_err_sig_in     = pciu_err_signal_out ;
wire    [31:0]  conf_pci_err_addr_in    = pciu_err_addr_out ;
wire    [31:0]  conf_pci_err_data_in    = pciu_err_data_out ;

wire    [3:0]   conf_wb_err_be_in       =   out_bckp_cbe_out ;
wire    [3:0]   conf_wb_err_bc_in       =   wbu_err_bc_out ;
wire            conf_wb_err_rty_exp_in  =   wbu_err_rty_exp_out ;
wire            conf_wb_err_es_in       =   wbu_err_source_out ;
wire            conf_wb_err_sig_in      =   wbu_err_signal_out ;
wire    [31:0]  conf_wb_err_addr_in     =   wbu_err_addr_out ;
wire    [31:0]  conf_wb_err_data_in     =   out_bckp_ad_out ;

wire            conf_isr_int_prop_in    =   pci_into_conf_isr_int_prop_out ;
wire            conf_par_err_int_in     =   parchk_perr_mas_detect_out ;
wire            conf_sys_err_int_in     =   parchk_sig_serr_out ;

pci_conf_space configuration(
                                .reset                      (reset),
                                .pci_clk                    (pci_clk),
                                .wb_clk                     (wb_clk),
                                .w_conf_address_in          (conf_w_addr_in),
                                .w_conf_data_in             (conf_w_data_in),
                                .w_conf_data_out            (conf_w_data_out),
                                .r_conf_address_in          (conf_r_addr_in),
                                .r_conf_data_out            (conf_r_data_out),
                                .w_we_i                     (conf_w_we_in),
                                .w_re                       (conf_w_re_in),
                                .r_re                       (conf_r_re_in),
                                .w_byte_en_in               (conf_w_be_in),
                                .w_clock                    (conf_w_clock),
                                .serr_enable                (conf_serr_enable_out),
                                .perr_response              (conf_perr_response_out),
                                .pci_master_enable          (conf_pci_master_enable_out),
                                .memory_space_enable        (conf_mem_space_enable_out),
                                .io_space_enable            (conf_io_space_enable_out),
                                .perr_in                    (conf_perr_in),
                                .serr_in                    (conf_serr_in),
                                .master_abort_recv          (conf_master_abort_recv_in),
                                .target_abort_recv          (conf_target_abort_recv_in),
                                .target_abort_set           (conf_target_abort_set_in),
                                .master_data_par_err        (conf_master_data_par_err_in),
                                .cache_line_size_to_pci     (conf_cache_line_size_to_pci_out),
                                .cache_line_size_to_wb      (conf_cache_line_size_to_wb_out),
                                .cache_lsize_not_zero_to_wb (conf_cache_lsize_not_zero_to_wb_out),
                                .latency_tim                (conf_latency_tim_out),
                                .pci_base_addr0             (conf_pci_ba0_out),
                                .pci_base_addr1             (conf_pci_ba1_out),
                                .pci_base_addr2             (conf_pci_ba2_out),
                                .pci_base_addr3             (conf_pci_ba3_out),
                                .pci_base_addr4             (conf_pci_ba4_out),
                                .pci_base_addr5             (conf_pci_ba5_out),
                                .pci_memory_io0             (conf_pci_mem_io0_out),
                                .pci_memory_io1             (conf_pci_mem_io1_out),
                                .pci_memory_io2             (conf_pci_mem_io2_out),
                                .pci_memory_io3             (conf_pci_mem_io3_out),
                                .pci_memory_io4             (conf_pci_mem_io4_out),
                                .pci_memory_io5             (conf_pci_mem_io5_out),
                                .pci_addr_mask0             (conf_pci_am0_out),
                                .pci_addr_mask1             (conf_pci_am1_out),
                                .pci_addr_mask2             (conf_pci_am2_out),
                                .pci_addr_mask3             (conf_pci_am3_out),
                                .pci_addr_mask4             (conf_pci_am4_out),
                                .pci_addr_mask5             (conf_pci_am5_out),
                                .pci_tran_addr0             (conf_pci_ta0_out),
                                .pci_tran_addr1             (conf_pci_ta1_out),
                                .pci_tran_addr2             (conf_pci_ta2_out),
                                .pci_tran_addr3             (conf_pci_ta3_out),
                                .pci_tran_addr4             (conf_pci_ta4_out),
                                .pci_tran_addr5             (conf_pci_ta5_out),
                                .pci_img_ctrl0              (conf_pci_img_ctrl0_out),
                                .pci_img_ctrl1              (conf_pci_img_ctrl1_out),
                                .pci_img_ctrl2              (conf_pci_img_ctrl2_out),
                                .pci_img_ctrl3              (conf_pci_img_ctrl3_out),
                                .pci_img_ctrl4              (conf_pci_img_ctrl4_out),
                                .pci_img_ctrl5              (conf_pci_img_ctrl5_out),
                                .pci_error_be               (conf_pci_err_be_in),
                                .pci_error_bc               (conf_pci_err_bc_in),
                                .pci_error_rty_exp          (conf_pci_err_rty_exp_in),
                                .pci_error_es               (conf_pci_err_es_in),
                                .pci_error_sig              (conf_pci_err_sig_in),
                                .pci_error_addr             (conf_pci_err_addr_in),
                                .pci_error_data             (conf_pci_err_data_in),
                                .wb_base_addr0              (conf_wb_ba0_out),
                                .wb_base_addr1              (conf_wb_ba1_out),
                                .wb_base_addr2              (conf_wb_ba2_out),
                                .wb_base_addr3              (conf_wb_ba3_out),
                                .wb_base_addr4              (conf_wb_ba4_out),
                                .wb_base_addr5              (conf_wb_ba5_out),
                                .wb_memory_io0              (conf_wb_mem_io0_out),
                                .wb_memory_io1              (conf_wb_mem_io1_out),
                                .wb_memory_io2              (conf_wb_mem_io2_out),
                                .wb_memory_io3              (conf_wb_mem_io3_out),
                                .wb_memory_io4              (conf_wb_mem_io4_out),
                                .wb_memory_io5              (conf_wb_mem_io5_out),
                                .wb_addr_mask0              (conf_wb_am0_out),
                                .wb_addr_mask1              (conf_wb_am1_out),
                                .wb_addr_mask2              (conf_wb_am2_out),
                                .wb_addr_mask3              (conf_wb_am3_out),
                                .wb_addr_mask4              (conf_wb_am4_out),
                                .wb_addr_mask5              (conf_wb_am5_out),
                                .wb_tran_addr0              (conf_wb_ta0_out),
                                .wb_tran_addr1              (conf_wb_ta1_out),
                                .wb_tran_addr2              (conf_wb_ta2_out),
                                .wb_tran_addr3              (conf_wb_ta3_out),
                                .wb_tran_addr4              (conf_wb_ta4_out),
                                .wb_tran_addr5              (conf_wb_ta5_out),
                                .wb_img_ctrl0               (conf_wb_img_ctrl0_out),
                                .wb_img_ctrl1               (conf_wb_img_ctrl1_out),
                                .wb_img_ctrl2               (conf_wb_img_ctrl2_out),
                                .wb_img_ctrl3               (conf_wb_img_ctrl3_out),
                                .wb_img_ctrl4               (conf_wb_img_ctrl4_out),
                                .wb_img_ctrl5               (conf_wb_img_ctrl5_out),
                                .wb_error_be                (conf_wb_err_be_in),
                                .wb_error_bc                (conf_wb_err_bc_in),
                                .wb_error_rty_exp           (conf_wb_err_rty_exp_in),
                                .wb_error_es                (conf_wb_err_es_in),
                                .wb_error_sig               (conf_wb_err_sig_in),
                                .wb_error_addr              (conf_wb_err_addr_in),
                                .wb_error_data              (conf_wb_err_data_in),
                                .config_addr                (conf_ccyc_addr_out),
                                .icr_soft_res               (conf_soft_res_out),
                                .int_out                    (conf_int_out),
                                .isr_int_prop               (conf_isr_int_prop_in),
                                .isr_par_err_int            (conf_par_err_int_in),
                                .isr_sys_err_int            (conf_sys_err_int_in),

                                .pci_init_complete_out      (conf_pci_init_complete_out),
                                .wb_init_complete_out       (conf_wb_init_complete_out)

                            `ifdef PCI_CPCI_HS_IMPLEMENT
                                ,
                                .pci_cpci_hs_enum_oe_o      (pci_cpci_hs_enum_oe_o) ,
                                .pci_cpci_hs_led_oe_o       (pci_cpci_hs_led_oe_o ) ,
                                .pci_cpci_hs_es_i           (pci_cpci_hs_es_i)
                            `endif
        
                            `ifdef PCI_SPOCI
                                ,
                                // Serial power on configuration interface
                                .spoci_scl_oe_o (spoci_scl_oe_o )  ,
                                .spoci_sda_i    (spoci_sda_i    )  ,
                                .spoci_sda_oe_o (spoci_sda_oe_o )
                            `endif
                            ) ;

// pci data io multiplexer inputs
wire            pci_mux_tar_ad_en_in            = pciu_pciif_ad_en_out ;
wire            pci_mux_tar_ad_en_reg_in        = out_bckp_tar_ad_en_out ;
wire    [31:0]  pci_mux_tar_ad_in               = pciu_pciif_ad_out ;
wire            pci_mux_devsel_in               = pciu_pciif_devsel_out ;
wire            pci_mux_devsel_en_in            = pciu_pciif_devsel_en_out ;
wire            pci_mux_trdy_in                 = pciu_pciif_trdy_out ;
wire            pci_mux_trdy_en_in              = pciu_pciif_trdy_en_out ;
wire            pci_mux_stop_in                 = pciu_pciif_stop_out ;
wire            pci_mux_stop_en_in              = pciu_pciif_stop_en_out ;
wire            pci_mux_tar_load_in             = pciu_ad_load_out ;
wire            pci_mux_tar_load_on_transfer_in = pciu_ad_load_on_transfer_out ;

wire            pci_mux_mas_ad_en_in    = wbu_pciif_ad_en_out ;
wire    [31:0]  pci_mux_mas_ad_in       = wbu_pciif_ad_out ;

wire            pci_mux_frame_in                = wbu_pciif_frame_out ;
wire            pci_mux_frame_en_in             = wbu_pciif_frame_en_out ;
wire            pci_mux_irdy_in                 = wbu_pciif_irdy_out;
wire            pci_mux_irdy_en_in              = wbu_pciif_irdy_en_out;
wire            pci_mux_mas_load_in             = wbu_ad_load_out ;
wire            pci_mux_mas_load_on_transfer_in = wbu_ad_load_on_transfer_out ;
wire [3:0]      pci_mux_cbe_in                  = wbu_pciif_cbe_out ;
wire            pci_mux_cbe_en_in               = wbu_pciif_cbe_en_out ;

wire            pci_mux_par_in              = parchk_pci_par_out ;
wire            pci_mux_par_en_in           = parchk_pci_par_en_out ;
wire            pci_mux_perr_in             = parchk_pci_perr_out ;
wire            pci_mux_perr_en_in          = parchk_pci_perr_en_out ;
wire            pci_mux_serr_in             = parchk_pci_serr_out ;
wire            pci_mux_serr_en_in          = parchk_pci_serr_en_out;

wire            pci_mux_req_in              =   wbu_pciif_req_out ;
wire            pci_mux_frame_load_in       =   wbu_pciif_frame_load_out ;

wire            pci_mux_pci_irdy_in         =   pci_irdy_i ;
wire            pci_mux_pci_trdy_in         =   pci_trdy_i ;
wire            pci_mux_pci_frame_in        =   pci_frame_i ;
wire            pci_mux_pci_stop_in         =   pci_stop_i ;

wire            pci_mux_init_complete_in    =   conf_pci_init_complete_out ;

pci_io_mux pci_io_mux
(
    .reset_in                   (reset),
    .clk_in                     (pci_clk),
    .frame_in                   (pci_mux_frame_in),
    .frame_en_in                (pci_mux_frame_en_in),
    .frame_load_in              (pci_mux_frame_load_in),
    .irdy_in                    (pci_mux_irdy_in),
    .irdy_en_in                 (pci_mux_irdy_en_in),
    .devsel_in                  (pci_mux_devsel_in),
    .devsel_en_in               (pci_mux_devsel_en_in),
    .trdy_in                    (pci_mux_trdy_in),
    .trdy_en_in                 (pci_mux_trdy_en_in),
    .stop_in                    (pci_mux_stop_in),
    .stop_en_in                 (pci_mux_stop_en_in),
    .master_load_in             (pci_mux_mas_load_in),
    .master_load_on_transfer_in (pci_mux_mas_load_on_transfer_in),
    .target_load_in             (pci_mux_tar_load_in),
    .target_load_on_transfer_in (pci_mux_tar_load_on_transfer_in),
    .cbe_in                     (pci_mux_cbe_in),
    .cbe_en_in                  (pci_mux_cbe_en_in),
    .mas_ad_in                  (pci_mux_mas_ad_in),
    .tar_ad_in                  (pci_mux_tar_ad_in),

    .mas_ad_en_in               (pci_mux_mas_ad_en_in),
    .tar_ad_en_in               (pci_mux_tar_ad_en_in),
    .tar_ad_en_reg_in           (pci_mux_tar_ad_en_reg_in),

    .par_in                     (pci_mux_par_in),
    .par_en_in                  (pci_mux_par_en_in),
    .perr_in                    (pci_mux_perr_in),
    .perr_en_in                 (pci_mux_perr_en_in),
    .serr_in                    (pci_mux_serr_in),
    .serr_en_in                 (pci_mux_serr_en_in),

    .frame_en_out               (pci_mux_fra