design/sys/iop/niu/rtl/niu_smx_rdreq_dmc.v

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//
// OpenSPARC T2 Processor File: niu_smx_rdreq_dmc.v
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module niu_smx_rdreq_dmc(
/*AUTOARG*/
   // Outputs
   meta_dmc1_req_accept, rdreq_cmdff_wr, rdreq_cmdff_wdata,
   rdreq_xtb_wr, rdreq_xtb_waddr, rdreq_xtb_wdata, rdreq_cmdreq_idle,
   rdreq_cmd_cs,
   // Inputs
   clk, reset_l, dmc_meta1_req, dmc_meta1_req_cmd,
   dmc_meta1_req_address, dmc_meta1_req_length,
   dmc_meta1_req_transID, dmc_meta1_req_port_num,
   dmc_meta1_req_dma_num, dmc_meta1_req_client, rdreq_cmdff_full,
   rdreq_rst_xtb_wr, stall_enable, tid_valid_rdata_bus
   );

input           clk;
input           reset_l;

input           dmc_meta1_req;
input [7:0]     dmc_meta1_req_cmd;
input [63:0]    dmc_meta1_req_address;
input [13:0]    dmc_meta1_req_length;
input [5:0]     dmc_meta1_req_transID;
input [1:0]     dmc_meta1_req_port_num;
input [4:0]     dmc_meta1_req_dma_num;
input [7:0]     dmc_meta1_req_client;
output          meta_dmc1_req_accept;

// cmd ff
output          rdreq_cmdff_wr;
output [65:0]   rdreq_cmdff_wdata;
input           rdreq_cmdff_full;

// xtb
output          rdreq_xtb_wr;
output [5:0]    rdreq_xtb_waddr;
output [127:0]  rdreq_xtb_wdata;
input           rdreq_rst_xtb_wr;

        // stall_hdlr if
input   stall_enable;
output  rdreq_cmdreq_idle;

output [2:0] rdreq_cmd_cs;

// status
// added 121405
input [63:0] tid_valid_rdata_bus;

wire [2:0] cmd_cs;
wire [2:0] rdreq_cmd_cs= cmd_cs;

// req input
wire dmc_smx_req= dmc_meta1_req;
wire [7:0] dmc_smx_req_cmd= dmc_meta1_req_cmd;
wire [63:0] dmc_smx_req_addr= dmc_meta1_req_address;
wire [13:0] dmc_smx_req_len= dmc_meta1_req_length;
wire [5:0] dmc_smx_req_xid= dmc_meta1_req_transID;
wire [1:0] dmc_smx_req_port= dmc_meta1_req_port_num;
wire [4:0] dmc_smx_req_dma= dmc_meta1_req_dma_num;
wire [7:0] dmc_smx_req_client= dmc_meta1_req_client;
// req output
wire smx_dmc_req_accept;
wire meta_dmc1_req_accept= smx_dmc_req_accept;


niu_smx_sm_req_cmdreq rd_sm_cmd(
        .clk (clk),
        .reset_l (reset_l),
        .req (dmc_smx_req),
        .req_cmd  (dmc_smx_req_cmd[7:0]),
        .req_addr (dmc_smx_req_addr[63:0]),
        .req_len (dmc_smx_req_len[13:0]),
        .req_xid (dmc_smx_req_xid[5:0]),
        .req_port (dmc_smx_req_port[1:0]),
        .req_dma (dmc_smx_req_dma[4:0]),
        .req_client (dmc_smx_req_client[7:0]),
        .ack (smx_dmc_req_accept),
        .cmdflag (), // nc
        .cmdflag_data (), // nc
        .early_cmdflag_n (), // nc
        .early_cmdflag_data_n (), // nc
        .rst_cmdflag (1'b0),
        .cfg_no_cmdflag (1'b1), // disable cmdflag gen
        .cfg_no_sameclientck (1'b1), // disable same client check;
                                // rd can switch over immediately
        .datareq_idle (1'b0),
        .xtb_wr (rdreq_xtb_wr),
        .xtb_waddr (rdreq_xtb_waddr[5:0]),
        .xtb_wdata (rdreq_xtb_wdata[127:0]),
        .rst_xtb_wr (rdreq_rst_xtb_wr),
        .ff_wr (rdreq_cmdff_wr),
        .ff_wdata (rdreq_cmdff_wdata[65:0]),
        .ff_full (rdreq_cmdff_full),
        .lnen_ff_wr (), // nc
        .lnen_ff_wdata (), // nc
        .lnen_ff_full (1'b0),

        .stall_enable (stall_enable),
        .cmdreq_idle (rdreq_cmdreq_idle),

        .cmd_cs (cmd_cs [2:0]),

        .tid_valid_rdata_bus (tid_valid_rdata_bus[63:0]),

        .xfer_done (1'b1)
);

endmodule