+= ignore

[raggedstone] / ethernet / source / top.vhd

LIBRARY ieee;
USE ieee.std_logic_1164.ALL;

entity ethernet is
PORT(
        PCI_AD : INOUT std_logic_vector(31 downto 0);
        PCI_CLOCK : IN std_logic;
        PCI_IDSEL : IN std_logic;
        PCI_CBEn : INOUT std_logic_vector (3 downto 0);
        PCI_FRAMEn : INOUT std_logic;
        PCI_IRDYn : INOUT std_logic;
        PCI_RSTn : INOUT std_logic;
        PCI_DEVSELn : INOUT std_logic;
        PCI_INTAn : INOUT std_logic;
        PCI_PERRn : INOUT std_logic;
        PCI_SERRn : INOUT std_logic;
        PCI_STOPn : INOUT std_logic;
        PCI_TRDYn : INOUT std_logic;
        PCI_PAR   : INOUT std_logic;
        PCI_REQn  : OUT std_logic;
        PCI_GNTn : IN std_logic;

        MTX_CLK_PAD_I : IN std_logic;
        MTXD_PAD_O : OUT std_logic_vector (3 downto 0);
        MTXEN_PAD_O : OUT std_logic;
        MRX_CLK_PAD_I : IN std_logic;
        MRXD_PAD_I : IN std_logic_vector (3 downto 0);
        MRXDV_PAD_I : IN std_logic;
        MRXERR_PAD_I : IN std_logic;
        MCOLL_PAD_I : IN std_logic;
        MCRS_PAD_I : IN std_logic;
        MD_PAD_IO : INOUT std_logic;
        MDC_PAD_O : OUT std_logic
);
end ethernet;

architecture ethernet_arch of ethernet is

COMPONENT eth_top
PORT(
        wb_clk_i : IN std_logic;
        wb_rst_i : IN std_logic;
        wb_dat_i : IN std_logic_vector(31 downto 0);
        wb_adr_i : IN std_logic_vector(11 downto 2);
        wb_sel_i : IN std_logic_vector(3 downto 0);
        wb_we_i : IN std_logic;
        wb_cyc_i : IN std_logic;
        wb_stb_i : IN std_logic;
        m_wb_dat_i : IN std_logic_vector(31 downto 0);
        m_wb_ack_i : IN std_logic;
        m_wb_err_i : IN std_logic;
        mtx_clk_pad_i : IN std_logic;
        mrx_clk_pad_i : IN std_logic;
        mrxd_pad_i : IN std_logic_vector(3 downto 0);
        mrxdv_pad_i : IN std_logic;
        mrxerr_pad_i : IN std_logic;
        mcoll_pad_i : IN std_logic;
        mcrs_pad_i : IN std_logic;
        md_pad_i : IN std_logic;          
        wb_dat_o : OUT std_logic_vector(31 downto 0);
        wb_ack_o : OUT std_logic;
        wb_err_o : OUT std_logic;
        m_wb_adr_o : OUT std_logic_vector(31 downto 0);
        m_wb_sel_o : OUT std_logic_vector(3 downto 0);
        m_wb_we_o : OUT std_logic;
        m_wb_dat_o : OUT std_logic_vector(31 downto 0);
        m_wb_cyc_o : OUT std_logic;
        m_wb_stb_o : OUT std_logic;
        mtxd_pad_o : OUT std_logic_vector(3 downto 0);
        mtxen_pad_o : OUT std_logic;
        mtxerr_pad_o : OUT std_logic;
        mdc_pad_o : OUT std_logic;
        md_pad_o : OUT std_logic;
        md_padoe_o : OUT std_logic;
        int_o : OUT std_logic
        );
END COMPONENT;

COMPONENT pci_bridge32
PORT(
        wb_clk_i : IN std_logic;
        wb_rst_i : IN std_logic;
        wb_int_i : IN std_logic;
        wbs_adr_i : IN std_logic_vector(31 downto 0);
        wbs_dat_i : IN std_logic_vector(31 downto 0);
        wbs_sel_i : IN std_logic_vector(3 downto 0);
        wbs_cyc_i : IN std_logic;
        wbs_stb_i : IN std_logic;
        wbs_we_i : IN std_logic;
        wbs_cti_i : IN std_logic_vector(2 downto 0);
        wbs_bte_i : IN std_logic_vector(1 downto 0);
        wbm_dat_i : IN std_logic_vector(31 downto 0);
        wbm_ack_i : IN std_logic;
        wbm_rty_i : IN std_logic;
        wbm_err_i : IN std_logic;
        pci_clk_i : IN std_logic;
        pci_rst_i : IN std_logic;
        pci_inta_i : IN std_logic;
        pci_gnt_i : IN std_logic;
        pci_frame_i : IN std_logic;
        pci_irdy_i : IN std_logic;
        pci_idsel_i : IN std_logic;
        pci_devsel_i : IN std_logic;
        pci_trdy_i : IN std_logic;
        pci_stop_i : IN std_logic;
        pci_ad_i : IN std_logic_vector(31 downto 0);
        pci_cbe_i : IN std_logic_vector(3 downto 0);
        pci_par_i : IN std_logic;
        pci_perr_i : IN std_logic;          
        wb_rst_o : OUT std_logic;
        wb_int_o : OUT std_logic;
        wbs_dat_o : OUT std_logic_vector(31 downto 0);
        wbs_ack_o : OUT std_logic;
        wbs_rty_o : OUT std_logic;
        wbs_err_o : OUT std_logic;
        wbm_adr_o : OUT std_logic_vector(31 downto 0);
        wbm_dat_o : OUT std_logic_vector(31 downto 0);
        wbm_sel_o : OUT std_logic_vector(3 downto 0);
        wbm_cyc_o : OUT std_logic;
        wbm_stb_o : OUT std_logic;
        wbm_we_o : OUT std_logic;
        wbm_cti_o : OUT std_logic_vector(2 downto 0);
        wbm_bte_o : OUT std_logic_vector(1 downto 0);
        pci_rst_o : OUT std_logic;
        pci_inta_o : OUT std_logic;
        pci_rst_oe_o : OUT std_logic;
        pci_inta_oe_o : OUT std_logic;
        pci_req_o : OUT std_logic;
        pci_req_oe_o : OUT std_logic;
        pci_frame_o : OUT std_logic;
        pci_frame_oe_o : OUT std_logic;
        pci_irdy_oe_o : OUT std_logic;
        pci_devsel_oe_o : OUT std_logic;
        pci_trdy_oe_o : OUT std_logic;
        pci_stop_oe_o : OUT std_logic;
        pci_ad_oe_o : OUT std_logic_vector(31 downto 0);
        pci_cbe_oe_o : OUT std_logic_vector(3 downto 0);
        pci_irdy_o : OUT std_logic;
        pci_devsel_o : OUT std_logic;
        pci_trdy_o : OUT std_logic;
        pci_stop_o : OUT std_logic;
        pci_ad_o : OUT std_logic_vector(31 downto 0);
        pci_cbe_o : OUT std_logic_vector(3 downto 0);
        pci_par_o : OUT std_logic;
        pci_par_oe_o : OUT std_logic;
        pci_perr_o : OUT std_logic;
        pci_perr_oe_o : OUT std_logic;
        pci_serr_o : OUT std_logic;
        pci_serr_oe_o : OUT std_logic
        );
END COMPONENT;

signal pci_rst_o : std_logic;
signal pci_rst_oe_o : std_logic;
signal pci_inta_o : std_logic;
signal pci_inta_oe_o : std_logic;
signal pci_req_o : std_logic;
signal pci_req_oe_o : std_logic;
signal pci_frame_o : std_logic;
signal pci_frame_oe_o : std_logic;
signal pci_irdy_o : std_logic;
signal pci_irdy_oe_o : std_logic;
signal pci_devsel_o : std_logic;
signal pci_devsel_oe_o : std_logic;
signal pci_trdy_o : std_logic;
signal pci_trdy_oe_o : std_logic;
signal pci_stop_o : std_logic;
signal pci_stop_oe_o : std_logic;
signal pci_par_o : std_logic;
signal pci_par_oe_o : std_logic;
signal pci_perr_o : std_logic;
signal pci_perr_oe_o : std_logic;
signal pci_serr_o : std_logic;
signal pci_serr_oe_o : std_logic;
signal pci_ad_oe_o : std_logic_vector(31 downto 0);
signal pci_cbe_oe_o : std_logic_vector(3 downto 0);
signal pci_ad_o : std_logic_vector (31 downto 0);
signal pci_cbe_o : std_logic_vector (3 downto 0);

signal wb_clk_i : std_logic;
signal wb_rst_i : std_logic;
signal wb_dat_i : std_logic_vector (31 downto 0);
signal wb_dat_o : std_logic_vector (31 downto 0);
signal wb_adr_i : std_logic_vector (11 downto 2);
signal wb_sel_i : std_logic_vector (3 downto 0);
signal wb_we_i : std_logic;
signal wb_cyc_i : std_logic;
signal wb_stb_i : std_logic;
signal wb_ack_o : std_logic;
signal wb_err_o : std_logic;
signal m_wb_adr_o : std_logic_vector(31 downto 0);
signal m_wb_sel_o : std_logic_vector(3 downto 0);
signal m_wb_we_o : std_logic;
signal m_wb_dat_o : std_logic_vector(31 downto 0);
signal m_wb_dat_i : std_logic_vector(31 downto 0);
signal m_wb_cyc_o : std_logic;
signal m_wb_stb_o : std_logic;
signal m_wb_ack_i : std_logic;
signal m_wb_err_i : std_logic;
signal md_pad_o : std_logic;
signal md_padoe_o : std_logic;
signal int_o : std_logic;
signal wbm_adr_o : std_logic_vector(31 downto 0);

BEGIN

PCI_RSTn    <= pci_rst_o    when (pci_rst_oe_o = '1')     else 'Z';
PCI_INTAn   <= pci_inta_o   when (pci_inta_oe_o = '1')    else 'Z';
PCI_REQn    <= pci_req_o    when (pci_req_oe_o = '1')     else 'Z';
PCI_FRAMEn  <= pci_frame_o  when (pci_frame_oe_o = '1')     else 'Z';
PCI_IRDYn   <= pci_irdy_o   when (pci_irdy_oe_o = '1')    else 'Z';
PCI_DEVSELn <= pci_devsel_o when (pci_devsel_oe_o = '1')  else 'Z';
PCI_TRDYn   <= pci_trdy_o   when (pci_trdy_oe_o = '1')    else 'Z';
PCI_STOPn   <= pci_stop_o   when (pci_stop_oe_o = '1')    else 'Z';
PCI_PAR     <= pci_par_o    when (pci_par_oe_o = '1')     else 'Z';
PCI_PERRn   <= pci_perr_o   when (pci_perr_oe_o = '1')    else 'Z';
PCI_SERRn   <= pci_serr_o   when (pci_serr_oe_o = '1')    else 'Z';
MD_PAD_IO   <= md_pad_o     when (md_padoe_o = '1')       else 'Z';

BLA1: FOR i in 31 downto 0 generate
PCI_AD(i) <= pci_ad_o(i) when (pci_ad_oe_o(i) = '1') else 'Z';
end generate;

BLA2: FOR i in 3 downto 0 generate
PCI_CBEn(i) <= pci_cbe_o(i) when (pci_cbe_oe_o(i) = '1') else 'Z';
end generate;

wb_adr_i <= wbm_adr_o (11 downto 2);

Inst_pci_bridge32: pci_bridge32 PORT MAP(
        wb_clk_i => wb_clk_i ,
        wb_rst_i => '0',
        wb_rst_o => wb_rst_i,
        wb_int_i => int_o,
        -- wb_int_o => ,
        wbs_adr_i => m_wb_adr_o ,
        wbs_dat_i => m_wb_dat_o,
        wbs_dat_o => m_wb_dat_i,
        wbs_sel_i => m_wb_sel_o,
        wbs_cyc_i => m_wb_cyc_o,
        wbs_stb_i => m_wb_stb_o,
        wbs_we_i => m_wb_we_o,
        wbs_cti_i => (others => '0'),
        wbs_bte_i => (others => '0'),
        wbs_ack_o => m_wb_ack_i,
        -- wbs_rty_o => ,
        wbs_err_o => m_wb_err_i,
        wbm_adr_o => wbm_adr_o,
        wbm_dat_i => wb_dat_o,
        wbm_dat_o => wb_dat_i,
        wbm_sel_o => wb_sel_i,
        wbm_cyc_o => wb_cyc_i,
        wbm_stb_o => wb_stb_i,
        wbm_we_o => wb_we_i,
        -- wbm_cti_o => ,
        -- wbm_bte_o => ,
        wbm_ack_i => wb_ack_o ,
        wbm_rty_i => '0',
        wbm_err_i => wb_err_o,
        pci_clk_i => PCI_CLOCK,
        pci_rst_i => PCI_RSTn,
        pci_rst_o => pci_rst_o ,
        pci_rst_oe_o => pci_rst_oe_o,
        pci_inta_i => PCI_INTAn,
        pci_inta_o => pci_inta_o,
        pci_inta_oe_o => pci_inta_oe_o,
        pci_req_o => pci_req_o,
        pci_req_oe_o => pci_req_oe_o,
        pci_gnt_i => PCI_GNTn,
        pci_frame_i => PCI_FRAMEn,
        pci_frame_o => pci_frame_o,
        pci_frame_oe_o => pci_frame_oe_o,
        pci_irdy_oe_o => pci_irdy_oe_o,
        pci_devsel_oe_o => pci_devsel_oe_o,
        pci_trdy_oe_o => pci_trdy_oe_o,
        pci_stop_oe_o => pci_stop_oe_o,
        pci_ad_oe_o => pci_ad_oe_o,
        pci_cbe_oe_o => pci_cbe_oe_o,
        pci_irdy_i => PCI_IRDYn,
        pci_irdy_o => pci_irdy_o,
        pci_idsel_i => PCI_IDSEL,
        pci_devsel_i => PCI_DEVSELn,
        pci_devsel_o => pci_devsel_o,
        pci_trdy_i => PCI_TRDYn,
        pci_trdy_o => pci_trdy_o,
        pci_stop_i => PCI_STOPn,
        pci_stop_o => pci_stop_o,
        pci_ad_i => PCI_AD,
        pci_ad_o => pci_ad_o,
        pci_cbe_i => PCI_CBEn,
        pci_cbe_o => pci_cbe_o,
        pci_par_i => PCI_PAR,
        pci_par_o => pci_par_o,
        pci_par_oe_o => pci_par_oe_o,
        pci_perr_i => PCI_PERRn,
        pci_perr_o => pci_perr_o,
        pci_perr_oe_o => pci_perr_oe_o,
        pci_serr_o => pci_serr_o,
        pci_serr_oe_o =>  pci_serr_oe_o
);

Inst_eth_top: eth_top PORT MAP(
        wb_clk_i   => wb_clk_i  ,
        wb_rst_i   => wb_rst_i  ,
        wb_dat_i   => wb_dat_i  ,
        wb_dat_o   => wb_dat_o  ,
        wb_adr_i   => wb_adr_i  ,
        wb_sel_i   => wb_sel_i  ,
        wb_we_i    => wb_we_i   ,
        wb_cyc_i   => wb_cyc_i  ,
        wb_stb_i   => wb_stb_i  ,
        wb_ack_o   => wb_ack_o  ,
        wb_err_o   => wb_err_o  ,
        m_wb_adr_o => m_wb_adr_o,
        m_wb_sel_o => m_wb_sel_o,
        m_wb_we_o  => m_wb_we_o ,
        m_wb_dat_o => m_wb_dat_o,
        m_wb_dat_i => m_wb_dat_i,
        m_wb_cyc_o => m_wb_cyc_o,
        m_wb_stb_o => m_wb_stb_o,
        m_wb_ack_i => m_wb_ack_i,
        m_wb_err_i => m_wb_err_i,
        mtx_clk_pad_i => MTX_CLK_PAD_I,
        mtxd_pad_o => MTXD_PAD_O,
        mtxen_pad_o => MTXEN_PAD_O,
        -- mtxerr_pad_o => ,
        mrx_clk_pad_i => MRX_CLK_PAD_I,
        mrxd_pad_i => MRXD_PAD_I,
        mrxdv_pad_i => MRXDV_PAD_I,
        mrxerr_pad_i => MRXERR_PAD_I,
        mcoll_pad_i => MCOLL_PAD_I,
        mcrs_pad_i => MCRS_PAD_I,
        mdc_pad_o => MDC_PAD_O,
        md_pad_i => MD_PAD_IO,
        md_pad_o => md_pad_o,
        md_padoe_o => md_padoe_o,
        int_o => int_o
);

end architecture ethernet_arch;