XauiGtx7.vhd

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-------------------------------------------------------------------------------
-- File       : XauiGtx7.vhd
-- Company    : SLAC National Accelerator Laboratory
-- Created    : 2015-02-12
-- Last update: 2016-09-29
-------------------------------------------------------------------------------
-- Description: 10 GigE XAUI for Gtx7
-------------------------------------------------------------------------------
-- This file is part of 'SLAC Firmware Standard Library'.
-- It is subject to the license terms in the LICENSE.txt file found in the 
-- top-level directory of this distribution and at: 
--    https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. 
-- No part of 'SLAC Firmware Standard Library', including this file, 
-- may be copied, modified, propagated, or distributed except according to 
-- the terms contained in the LICENSE.txt file.
-------------------------------------------------------------------------------

library ieee;
use ieee.std_logic_1164.all;

use work.StdRtlPkg.all;
use work.AxiStreamPkg.all;
use work.AxiLitePkg.all;
use work.XauiPkg.all;
use work.EthMacPkg.all;

--! @see entity 
 --! @ingroup ethernet_XauiCore_gtx7
entity XauiGtx7 is
   generic (
      TPD_G            : time                := 1 ns;
      -- AXI-Lite Configurations
      EN_AXI_REG_G     : boolean             := false;
      AXI_ERROR_RESP_G : slv(1 downto 0)     := AXI_RESP_SLVERR_C;
      -- AXI Streaming Configurations
      AXIS_CONFIG_G    : AxiStreamConfigType := AXI_STREAM_CONFIG_INIT_C);
   port (
      -- Local Configurations
      localMac           : in  slv(47 downto 0)       := MAC_ADDR_INIT_C;
      -- Streaming DMA Interface 
      dmaClk             : in  sl;
      dmaRst             : in  sl;
      dmaIbMaster        : out AxiStreamMasterType;
      dmaIbSlave         : in  AxiStreamSlaveType;
      dmaObMaster        : in  AxiStreamMasterType;
      dmaObSlave         : out AxiStreamSlaveType;
      -- Slave AXI-Lite Interface 
      axiLiteClk         : in  sl                     := '0';
      axiLiteRst         : in  sl                     := '0';
      axiLiteReadMaster  : in  AxiLiteReadMasterType  := AXI_LITE_READ_MASTER_INIT_C;
      axiLiteReadSlave   : out AxiLiteReadSlaveType;
      axiLiteWriteMaster : in  AxiLiteWriteMasterType := AXI_LITE_WRITE_MASTER_INIT_C;
      axiLiteWriteSlave  : out AxiLiteWriteSlaveType;
      -- Misc. Signals
      extRst             : in  sl;
      phyClk             : out sl;
      phyRst             : out sl;
      phyReady           : out sl;
      -- MGT Ports
      gtRefClk           : in  sl;
      gtTxP              : out slv(3 downto 0);
      gtTxN              : out slv(3 downto 0);
      gtRxP              : in  slv(3 downto 0);
      gtRxN              : in  slv(3 downto 0));  
end XauiGtx7;

architecture mapping of XauiGtx7 is

   signal phyRxd : slv(63 downto 0);
   signal phyRxc : slv(7 downto 0);
   signal phyTxd : slv(63 downto 0);
   signal phyTxc : slv(7 downto 0);

   signal areset   : sl;
   signal phyClock : sl;
   signal phyReset : sl;

   signal config : XauiConfig;
   signal status : XauiStatus;

   signal macRxAxisMaster : AxiStreamMasterType;
   signal macRxAxisCtrl   : AxiStreamCtrlType;
   signal macTxAxisMaster : AxiStreamMasterType;
   signal macTxAxisSlave  : AxiStreamSlaveType;
   
begin

   phyClk   <= phyClock;
   phyRst   <= phyReset;
   phyReady <= status.phyReady;

   --------------------
   -- Ethernet MAC core
   --------------------
   U_MAC : entity work.EthMacTop
      generic map (
         TPD_G         => TPD_G,
         PHY_TYPE_G    => "XGMII",
         PRIM_CONFIG_G => AXIS_CONFIG_G)
      port map (
         -- Primary Interface
         primClk         => dmaClk,
         primRst         => dmaRst,
         ibMacPrimMaster => dmaObMaster,
         ibMacPrimSlave  => dmaObSlave,
         obMacPrimMaster => dmaIbMaster,
         obMacPrimSlave  => dmaIbSlave,
         -- Ethernet Interface
         ethClk          => phyClock,
         ethRst          => phyReset,
         ethConfig       => config.macConfig,
         ethStatus       => status.macStatus,
         phyReady        => status.phyReady,
         -- XGMII PHY Interface
         xgmiiRxd        => phyRxd,
         xgmiiRxc        => phyRxc,
         xgmiiTxd        => phyTxd,
         xgmiiTxc        => phyTxc);      

   --------------------
   -- 10 GigE XAUI Core
   --------------------
   U_XauiGtx7Core : entity work.XauiGtx7Core
      port map (
         -- Clocks and Resets
         dclk                 => gtRefClk,
         reset                => areset,
         clk156_out           => phyClock,
         clk156_lock          => status.clkLock,
         refclk               => gtRefClk,
         -- PHY Interface
         xgmii_txd            => phyTxd,
         xgmii_txc            => phyTxc,
         xgmii_rxd            => phyRxd,
         xgmii_rxc            => phyRxc,
         -- MGT Ports
         xaui_tx_l0_p         => gtTxP(0),
         xaui_tx_l0_n         => gtTxN(0),
         xaui_tx_l1_p         => gtTxP(1),
         xaui_tx_l1_n         => gtTxN(1),
         xaui_tx_l2_p         => gtTxP(2),
         xaui_tx_l2_n         => gtTxN(2),
         xaui_tx_l3_p         => gtTxP(3),
         xaui_tx_l3_n         => gtTxN(3),
         xaui_rx_l0_p         => gtRxP(0),
         xaui_rx_l0_n         => gtRxN(0),
         xaui_rx_l1_p         => gtRxP(1),
         xaui_rx_l1_n         => gtRxN(1),
         xaui_rx_l2_p         => gtRxP(2),
         xaui_rx_l2_n         => gtRxN(2),
         xaui_rx_l3_p         => gtRxP(3),
         xaui_rx_l3_n         => gtRxN(3),
         -- Configuration and Status
         signal_detect        => (others => '1'),
         debug                => status.debugVector,
         configuration_vector => config.configVector,
         status_vector        => status.statusVector); 

   status.phyReady <= uAnd(status.debugVector);

   --------------------------
   -- 10GBASE-R's Reset Logic
   --------------------------
   status.areset <= config.softRst or extRst;

   RstSync_0 : entity work.RstSync
      generic map (
         TPD_G           => TPD_G,
         IN_POLARITY_G   => '1',
         OUT_POLARITY_G  => '1',
         RELEASE_DELAY_G => 4) 
      port map (
         clk      => gtRefClk,
         asyncRst => status.areset,
         syncRst  => areset);

   RstSync_1 : entity work.RstSync
      generic map (
         TPD_G           => TPD_G,
         IN_POLARITY_G   => '0',
         OUT_POLARITY_G  => '1',
         RELEASE_DELAY_G => 4) 
      port map (
         clk      => gtRefClk,
         asyncRst => status.clkLock,
         syncRst  => phyReset);         

   --------------------------------     
   -- Configuration/Status Register   
   --------------------------------     
   U_XauiReg : entity work.XauiReg
      generic map (
         TPD_G            => TPD_G,
         EN_AXI_REG_G     => EN_AXI_REG_G,
         AXI_ERROR_RESP_G => AXI_ERROR_RESP_G)
      port map (
         -- Local Configurations
         localMac       => localMac,
         -- AXI-Lite Register Interface
         axiClk         => axiLiteClk,
         axiRst         => axiLiteRst,
         axiReadMaster  => axiLiteReadMaster,
         axiReadSlave   => axiLiteReadSlave,
         axiWriteMaster => axiLiteWriteMaster,
         axiWriteSlave  => axiLiteWriteSlave,
         -- Configuration and Status Interface
         phyClk         => phyClock,
         phyRst         => phyReset,
         config         => config,
         status         => status); 

end mapping;