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[/] [pcie_ds_dma/] [trunk/] [core/] [ds_dma64/] [pcie_src/] [pcie_core64_m1/] [source_artix7/] [cl_a7pcie_x4_pipe_reset.v] - Diff between revs 46 and 48

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Line 47... Line 47... 
// PART OF THIS FILE AT ALL TIMES.
 
// PART OF THIS FILE AT ALL TIMES.
 
//
 
//
 
//-----------------------------------------------------------------------------
 
//-----------------------------------------------------------------------------
 
// Project    : Series-7 Integrated Block for PCI Express
 
// Project    : Series-7 Integrated Block for PCI Express
 
// File       : cl_a7pcie_x4_pipe_reset.v
 
// File       : cl_a7pcie_x4_pipe_reset.v
 
// Version    : 1.9
 
// Version    : 1.10
 
//------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------
 
//  Filename     :  pipe_reset.v
 
//  Filename     :  pipe_reset.v
 
//  Description  :  PIPE Reset Module for 7 Series Transceiver
 
//  Description  :  PIPE Reset Module for 7 Series Transceiver
 
//  Version      :  20.0
 
//  Version      :  20.2
 
//------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------
 
 
 
 
 
 
 
 
 
 
 
 
 
`timescale 1ns / 1ps
 
`timescale 1ns / 1ps
Line 98... Line 98... 
    input       [PCIE_LANE-1:0]     RST_TXSYNC_DONE,
 
    input       [PCIE_LANE-1:0]     RST_TXSYNC_DONE,
 
 
 
 
 
    //---------- Output ------------------------------------
 
    //---------- Output ------------------------------------
 
    output                          RST_CPLLRESET,
 
    output                          RST_CPLLRESET,
 
    output                          RST_CPLLPD,
 
    output                          RST_CPLLPD,
 
    output                          RST_DRP_START,
 
    output reg                      RST_DRP_START,
 
    output                          RST_DRP_X16X20_MODE,
 
    output reg                      RST_DRP_X16X20_MODE,
 
    output                          RST_DRP_X16,
 
    output reg                      RST_DRP_X16,
 
    output                          RST_RXUSRCLK_RESET,
 
    output                          RST_RXUSRCLK_RESET,
 
    output                          RST_DCLK_RESET,
 
    output                          RST_DCLK_RESET,
 
    output                          RST_GTRESET,
 
    output                          RST_GTRESET,
 
    output                          RST_USERRDY,
 
    output                          RST_USERRDY,
 
    output                          RST_TXSYNC_START,
 
    output                          RST_TXSYNC_START,
Line 112... Line 112... 
    output      [ 4:0]              RST_FSM
 
    output      [ 4:0]              RST_FSM
 
 
 
 
 
);
 
);
 
 
 
 
 
    //---------- Input Register ----------------------------
 
    //---------- Input Register ----------------------------
 
    reg         [PCIE_LANE-1:0]     drp_done_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     drp_done_reg1;
 
    reg         [PCIE_LANE-1:0]     rxpmaresetdone_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     rxpmaresetdone_reg1;
 
    reg         [PCIE_LANE-1:0]     cplllock_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     cplllock_reg1;
 
    reg                             qpll_idle_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg                             qpll_idle_reg1;
 
    reg         [PCIE_LANE-1:0]     rate_idle_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     rate_idle_reg1;
 
    reg         [PCIE_LANE-1:0]     rxcdrlock_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     rxcdrlock_reg1;
 
    reg                             mmcm_lock_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg                             mmcm_lock_reg1;
 
    reg         [PCIE_LANE-1:0]     resetdone_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     resetdone_reg1;
 
    reg         [PCIE_LANE-1:0]     phystatus_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     phystatus_reg1;
 
    reg         [PCIE_LANE-1:0]     txsync_done_reg1;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     txsync_done_reg1;
 
 
 
 
 
    reg         [PCIE_LANE-1:0]     drp_done_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     drp_done_reg2;
 
    reg         [PCIE_LANE-1:0]     rxpmaresetdone_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     rxpmaresetdone_reg2;
 
    reg         [PCIE_LANE-1:0]     cplllock_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     cplllock_reg2;
 
    reg                             qpll_idle_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg                             qpll_idle_reg2;
 
    reg         [PCIE_LANE-1:0]     rate_idle_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     rate_idle_reg2;
 
    reg         [PCIE_LANE-1:0]     rxcdrlock_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     rxcdrlock_reg2;
 
    reg                             mmcm_lock_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg                             mmcm_lock_reg2;
 
    reg         [PCIE_LANE-1:0]     resetdone_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     resetdone_reg2;
 
    reg         [PCIE_LANE-1:0]     phystatus_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     phystatus_reg2;
 
    reg         [PCIE_LANE-1:0]     txsync_done_reg2;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg         [PCIE_LANE-1:0]     txsync_done_reg2;
 
 
 
 
 
    //---------- Internal Signal ---------------------------
 
    //---------- Internal Signal ---------------------------
 
    reg         [ 5:0]              cfg_wait_cnt      =  6'd0;
 
    reg         [ 5:0]              cfg_wait_cnt      =  6'd0;
 
 
 
 
 
    //---------- Output Register ---------------------------
 
    //---------- Output Register ---------------------------
 
    reg                             cpllreset         =  1'd0;
 
    reg                             cpllreset         =  1'd0;
 
    reg                             cpllpd            =  1'd0;
 
    reg                             cpllpd            =  1'd0;
 
    reg                             rxusrclk_rst_reg1 =  1'd0;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg                             rxusrclk_rst_reg1 =  1'd0;
 
    reg                             rxusrclk_rst_reg2 =  1'd0;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg                             rxusrclk_rst_reg2 =  1'd0;
 
    reg                             dclk_rst_reg1     =  1'd0;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg                             dclk_rst_reg1     =  1'd0;
 
    reg                             dclk_rst_reg2     =  1'd0;
 
(* ASYNC_REG = "TRUE", SHIFT_EXTRACT = "NO" *)    reg                             dclk_rst_reg2     =  1'd0;
 
    reg                             gtreset           =  1'd0;
 
    reg                             gtreset           =  1'd0;
 
    reg                             userrdy           =  1'd0;
 
    reg                             userrdy           =  1'd0;
 
    reg         [ 4:0]              fsm               =  2;
 
    reg         [4:0]               fsm               =  5'h2;
 
 
 
 
 
    //---------- FSM ---------------------------------------                                         
    //---------- FSM ---------------------------------------                                         
    localparam                      FSM_IDLE             = 0;
 
    localparam                      FSM_IDLE             = 5'h0;
 
    localparam                      FSM_CFG_WAIT         = 1;
 
    localparam                      FSM_CFG_WAIT         = 5'h1;
 
    localparam                      FSM_CPLLRESET        = 2;
 
    localparam                      FSM_CPLLRESET        = 5'h2;
 
    localparam                      FSM_DRP_X16_START    = 3;
 
    localparam                      FSM_DRP_X16_START    = 5'h3;
 
    localparam                      FSM_DRP_X16_DONE     = 4;
 
    localparam                      FSM_DRP_X16_DONE     = 5'h4;
 
    localparam                      FSM_CPLLLOCK         = 5;
 
    localparam                      FSM_CPLLLOCK         = 5'h5;
 
    localparam                      FSM_DRP              = 6;
 
    localparam                      FSM_DRP              = 5'h6;
 
    localparam                      FSM_GTRESET          = 7;
 
    localparam                      FSM_GTRESET          = 5'h7;
 
    localparam                      FSM_RXPMARESETDONE_1 = 8;
 
    localparam                      FSM_RXPMARESETDONE_1 = 5'h8;
 
    localparam                      FSM_RXPMARESETDONE_2 = 9;
 
    localparam                      FSM_RXPMARESETDONE_2 = 5'h9;
 
    localparam                      FSM_DRP_X20_START    = 10;
 
    localparam                      FSM_DRP_X20_START    = 5'hA;
 
    localparam                      FSM_DRP_X20_DONE     = 11;
 
    localparam                      FSM_DRP_X20_DONE     = 5'hB;
 
    localparam                      FSM_MMCM_LOCK        = 12;
 
    localparam                      FSM_MMCM_LOCK        = 5'hC;
 
    localparam                      FSM_RESETDONE        = 13;
 
    localparam                      FSM_RESETDONE        = 5'hD;
 
    localparam                      FSM_CPLL_PD          = 14;
 
    localparam                      FSM_CPLL_PD          = 5'hE;
 
    localparam                      FSM_TXSYNC_START     = 15;
 
    localparam                      FSM_TXSYNC_START     = 5'hF;
 
    localparam                      FSM_TXSYNC_DONE      = 16;
 
    localparam                      FSM_TXSYNC_DONE      = 5'h10;
 
 
 
 
 
 
 
 
 
 
 
 
 
//---------- Input FF ----------------------------------------------------------
 
//---------- Input FF ----------------------------------------------------------
 
always @ (posedge RST_CLK)
 
always @ (posedge RST_CLK)
Line 523... Line 523... 
begin
 
begin
 
 
 
 
 
    if (fsm == FSM_CFG_WAIT)
 
    if (fsm == FSM_CFG_WAIT)
 
        begin
 
        begin
 
        dclk_rst_reg1 <= 1'd1;
 
        dclk_rst_reg1 <= 1'd1;
 
        dclk_rst_reg2 <= 1'd1;
 
        dclk_rst_reg2 <= dclk_rst_reg1;
 
        end
 
        end
 
    else
 
    else
 
        begin
 
        begin
 
        dclk_rst_reg1 <= 1'd0;
 
        dclk_rst_reg1 <= 1'd0;
 
        dclk_rst_reg2 <= dclk_rst_reg1;
 
        dclk_rst_reg2 <= dclk_rst_reg1;
Line 541... Line 541... 
assign RST_CPLLRESET       = cpllreset;
 
assign RST_CPLLRESET       = cpllreset;
 
assign RST_CPLLPD          = ((PCIE_POWER_SAVING == "FALSE") ? 1'd0 : cpllpd);
 
assign RST_CPLLPD          = ((PCIE_POWER_SAVING == "FALSE") ? 1'd0 : cpllpd);
 
assign RST_RXUSRCLK_RESET  = rxusrclk_rst_reg2;
 
assign RST_RXUSRCLK_RESET  = rxusrclk_rst_reg2;
 
assign RST_DCLK_RESET      = dclk_rst_reg2;
 
assign RST_DCLK_RESET      = dclk_rst_reg2;
 
assign RST_GTRESET         = gtreset;
 
assign RST_GTRESET         = gtreset;
 
assign RST_DRP_START       = (fsm == FSM_DRP_X16_START) || (fsm == FSM_DRP_X20_START);
 
 
 
assign RST_DRP_X16X20_MODE = (fsm == FSM_DRP_X16_START) || (fsm == FSM_DRP_X16_DONE) || (fsm == FSM_DRP_X20_START) || (fsm == FSM_DRP_X20_DONE);
 
 
 
assign RST_DRP_X16         = (fsm == FSM_DRP_X16_START) || (fsm == FSM_DRP_X16_DONE);
 
 
 
assign RST_USERRDY         = userrdy;
 
assign RST_USERRDY         = userrdy;
 
assign RST_TXSYNC_START    = (fsm == FSM_TXSYNC_START);
 
assign RST_TXSYNC_START    = (fsm == FSM_TXSYNC_START);
 
assign RST_IDLE            = (fsm == FSM_IDLE);
 
assign RST_IDLE            = (fsm == FSM_IDLE);
 
assign RST_FSM             = fsm;
 
assign RST_FSM             = fsm;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
//--------------------------------------------------------------------------------------------------
 
 
 
//  Register Output
 
 
 
//--------------------------------------------------------------------------------------------------
 
 
 
always @ (posedge RST_CLK)
 
 
 
begin
 
 
 
 
 
 
 
    if (!RST_RST_N)
 
 
 
        begin
 
 
 
        RST_DRP_START       <= 1'd0;
 
 
 
        RST_DRP_X16X20_MODE <= 1'd0;
 
 
 
        RST_DRP_X16         <= 1'd0;
 
 
 
        end
 
 
 
    else
 
 
 
        begin
 
 
 
        RST_DRP_START       <= (fsm == FSM_DRP_X16_START) || (fsm == FSM_DRP_X20_START);
 
 
 
        RST_DRP_X16X20_MODE <= (fsm == FSM_DRP_X16_START) || (fsm == FSM_DRP_X16_DONE) || (fsm == FSM_DRP_X20_START) || (fsm == FSM_DRP_X20_DONE);
 
 
 
        RST_DRP_X16         <= (fsm == FSM_DRP_X16_START) || (fsm == FSM_DRP_X16_DONE);
 
 
 
        end
 
 
 
 
 
 
 
end
 
 
 
 
 
 
 
 
 
 
 
 
 
endmodule
 
endmodule
 
 
 
 
 
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