git.zerfleddert.de Git - raggedstone/blob - ethernet/source/top.vhd

   1 LIBRARY ieee;
   2 USE ieee.std_logic_1164.ALL;
   3
   4 entity ethernet is
   5 PORT(
   6         PCI_AD : INOUT std_logic_vector(31 downto 0);
   7         PCI_CLOCK : IN std_logic;
   8         PCI_IDSEL : IN std_logic;
   9         PCI_CBEn : INOUT std_logic_vector (3 downto 0);
  10         PCI_FRAMEn : INOUT std_logic;
  11         PCI_IRDYn : INOUT std_logic;
  12         PCI_RSTn : INOUT std_logic;
  13         PCI_DEVSELn : INOUT std_logic;
  14         PCI_INTAn : INOUT std_logic;
  15         PCI_PERRn : INOUT std_logic;
  16         PCI_SERRn : INOUT std_logic;
  17         PCI_STOPn : INOUT std_logic;
  18         PCI_TRDYn : INOUT std_logic;
  19         PCI_PAR   : INOUT std_logic;
  20         PCI_REQn  : OUT std_logic;
  21         PCI_GNTn : IN std_logic;
  22
  23         MTX_CLK_PAD_I : IN std_logic;
  24         MTXD_PAD_O : OUT std_logic_vector (3 downto 0);
  25         MTXEN_PAD_O : OUT std_logic;
  26         MRX_CLK_PAD_I : IN std_logic;
  27         MRXD_PAD_I : IN std_logic_vector (3 downto 0);
  28         MRXDV_PAD_I : IN std_logic;
  29         MRXERR_PAD_I : IN std_logic;
  30         MCOLL_PAD_I : IN std_logic;
  31         MCRS_PAD_I : IN std_logic;
  32         MD_PAD_IO : INOUT std_logic;
  33         MDC_PAD_O : OUT std_logic;
  34
  35         LED_2 : OUT std_logic
  36 );
  37 end ethernet;
  38
  39 architecture ethernet_arch of ethernet is
  40
  41 COMPONENT eth_top
  42 PORT(
  43         wb_clk_i : IN std_logic;
  44         wb_rst_i : IN std_logic;
  45         wb_dat_i : IN std_logic_vector(31 downto 0);
  46         wb_adr_i : IN std_logic_vector(11 downto 2);
  47         wb_sel_i : IN std_logic_vector(3 downto 0);
  48         wb_we_i : IN std_logic;
  49         wb_cyc_i : IN std_logic;
  50         wb_stb_i : IN std_logic;
  51         m_wb_dat_i : IN std_logic_vector(31 downto 0);
  52         m_wb_ack_i : IN std_logic;
  53         m_wb_err_i : IN std_logic;
  54         mtx_clk_pad_i : IN std_logic;
  55         mrx_clk_pad_i : IN std_logic;
  56         mrxd_pad_i : IN std_logic_vector(3 downto 0);
  57         mrxdv_pad_i : IN std_logic;
  58         mrxerr_pad_i : IN std_logic;
  59         mcoll_pad_i : IN std_logic;
  60         mcrs_pad_i : IN std_logic;
  61         md_pad_i : IN std_logic;
  62         wb_dat_o : OUT std_logic_vector(31 downto 0);
  63         wb_ack_o : OUT std_logic;
  64         wb_err_o : OUT std_logic;
  65         m_wb_adr_o : OUT std_logic_vector(31 downto 0);
  66         m_wb_sel_o : OUT std_logic_vector(3 downto 0);
  67         m_wb_we_o : OUT std_logic;
  68         m_wb_dat_o : OUT std_logic_vector(31 downto 0);
  69         m_wb_cyc_o : OUT std_logic;
  70         m_wb_stb_o : OUT std_logic;
  71         mtxd_pad_o : OUT std_logic_vector(3 downto 0);
  72         mtxen_pad_o : OUT std_logic;
  73         mtxerr_pad_o : OUT std_logic;
  74         mdc_pad_o : OUT std_logic;
  75         md_pad_o : OUT std_logic;
  76         md_padoe_o : OUT std_logic;
  77         m_wb_cti_o : OUT std_logic_vector(2 downto 0);
  78         m_wb_bte_o : OUT std_logic_vector(1 downto 0);
  79         int_o : OUT std_logic
  80         );
  81 END COMPONENT;
  82
  83 COMPONENT pci_bridge32
  84 PORT(
  85         wb_clk_i : IN std_logic;
  86         wb_rst_i : IN std_logic;
  87         wb_int_i : IN std_logic;
  88         wbs_adr_i : IN std_logic_vector(31 downto 0);
  89         wbs_dat_i : IN std_logic_vector(31 downto 0);
  90         wbs_sel_i : IN std_logic_vector(3 downto 0);
  91         wbs_cyc_i : IN std_logic;
  92         wbs_stb_i : IN std_logic;
  93         wbs_we_i : IN std_logic;
  94         wbs_cti_i : IN std_logic_vector(2 downto 0);
  95         wbs_bte_i : IN std_logic_vector(1 downto 0);
  96         wbm_dat_i : IN std_logic_vector(31 downto 0);
  97         wbm_ack_i : IN std_logic;
  98         wbm_rty_i : IN std_logic;
  99         wbm_err_i : IN std_logic;
 100         pci_clk_i : IN std_logic;
 101         pci_rst_i : IN std_logic;
 102         pci_inta_i : IN std_logic;
 103         pci_gnt_i : IN std_logic;
 104         pci_frame_i : IN std_logic;
 105         pci_irdy_i : IN std_logic;
 106         pci_idsel_i : IN std_logic;
 107         pci_devsel_i : IN std_logic;
 108         pci_trdy_i : IN std_logic;
 109         pci_stop_i : IN std_logic;
 110         pci_ad_i : IN std_logic_vector(31 downto 0);
 111         pci_cbe_i : IN std_logic_vector(3 downto 0);
 112         pci_par_i : IN std_logic;
 113         pci_perr_i : IN std_logic;
 114         wb_rst_o : OUT std_logic;
 115         wb_int_o : OUT std_logic;
 116         wbs_dat_o : OUT std_logic_vector(31 downto 0);
 117         wbs_ack_o : OUT std_logic;
 118         wbs_rty_o : OUT std_logic;
 119         wbs_err_o : OUT std_logic;
 120         wbm_adr_o : OUT std_logic_vector(31 downto 0);
 121         wbm_dat_o : OUT std_logic_vector(31 downto 0);
 122         wbm_sel_o : OUT std_logic_vector(3 downto 0);
 123         wbm_cyc_o : OUT std_logic;
 124         wbm_stb_o : OUT std_logic;
 125         wbm_we_o : OUT std_logic;
 126         wbm_cti_o : OUT std_logic_vector(2 downto 0);
 127         wbm_bte_o : OUT std_logic_vector(1 downto 0);
 128         pci_rst_o : OUT std_logic;
 129         pci_inta_o : OUT std_logic;
 130         pci_rst_oe_o : OUT std_logic;
 131         pci_inta_oe_o : OUT std_logic;
 132         pci_req_o : OUT std_logic;
 133         pci_req_oe_o : OUT std_logic;
 134         pci_frame_o : OUT std_logic;
 135         pci_frame_oe_o : OUT std_logic;
 136         pci_irdy_oe_o : OUT std_logic;
 137         pci_devsel_oe_o : OUT std_logic;
 138         pci_trdy_oe_o : OUT std_logic;
 139         pci_stop_oe_o : OUT std_logic;
 140         pci_ad_oe_o : OUT std_logic_vector(31 downto 0);
 141         pci_cbe_oe_o : OUT std_logic_vector(3 downto 0);
 142         pci_irdy_o : OUT std_logic;
 143         pci_devsel_o : OUT std_logic;
 144         pci_trdy_o : OUT std_logic;
 145         pci_stop_o : OUT std_logic;
 146         pci_ad_o : OUT std_logic_vector(31 downto 0);
 147         pci_cbe_o : OUT std_logic_vector(3 downto 0);
 148         pci_par_o : OUT std_logic;
 149         pci_par_oe_o : OUT std_logic;
 150         pci_perr_o : OUT std_logic;
 151         pci_perr_oe_o : OUT std_logic;
 152         pci_serr_o : OUT std_logic;
 153         pci_serr_oe_o : OUT std_logic
 154         );
 155 END COMPONENT;
 156
 157 signal pci_rst_o : std_logic;
 158 signal pci_rst_oe_o : std_logic;
 159 signal pci_inta_o : std_logic;
 160 signal pci_inta_oe_o : std_logic;
 161 signal pci_req_o : std_logic;
 162 signal pci_req_oe_o : std_logic;
 163 signal pci_frame_o : std_logic;
 164 signal pci_frame_oe_o : std_logic;
 165 signal pci_irdy_o : std_logic;
 166 signal pci_irdy_oe_o : std_logic;
 167 signal pci_devsel_o : std_logic;
 168 signal pci_devsel_oe_o : std_logic;
 169 signal pci_trdy_o : std_logic;
 170 signal pci_trdy_oe_o : std_logic;
 171 signal pci_stop_o : std_logic;
 172 signal pci_stop_oe_o : std_logic;
 173 signal pci_par_o : std_logic;
 174 signal pci_par_oe_o : std_logic;
 175 signal pci_perr_o : std_logic;
 176 signal pci_perr_oe_o : std_logic;
 177 signal pci_serr_o : std_logic;
 178 signal pci_serr_oe_o : std_logic;
 179 signal pci_ad_oe_o : std_logic_vector(31 downto 0);
 180 signal pci_cbe_oe_o : std_logic_vector(3 downto 0);
 181 signal pci_ad_o : std_logic_vector (31 downto 0);
 182 signal pci_cbe_o : std_logic_vector (3 downto 0);
 183
 184 signal wb_clk_i : std_logic;
 185 signal wb_rst_i : std_logic;
 186 signal wb_dat_i : std_logic_vector (31 downto 0);
 187 signal wb_dat_o : std_logic_vector (31 downto 0);
 188 signal wb_adr_i : std_logic_vector (11 downto 2);
 189 signal wb_sel_i : std_logic_vector (3 downto 0);
 190 signal wb_we_i : std_logic;
 191 signal wb_cyc_i : std_logic;
 192 signal wb_stb_i : std_logic;
 193 signal wb_ack_o : std_logic;
 194 signal wb_err_o : std_logic;
 195 signal m_wb_adr_o : std_logic_vector(31 downto 0);
 196 signal m_wb_sel_o : std_logic_vector(3 downto 0);
 197 signal m_wb_we_o : std_logic;
 198 signal m_wb_dat_o : std_logic_vector(31 downto 0);
 199 signal m_wb_dat_i : std_logic_vector(31 downto 0);
 200 signal m_wb_cyc_o : std_logic;
 201 signal m_wb_stb_o : std_logic;
 202 signal m_wb_ack_i : std_logic;
 203 signal m_wb_err_i : std_logic;
 204 signal md_pad_o : std_logic;
 205 signal md_padoe_o : std_logic;
 206 signal int_o : std_logic;
 207 signal wbm_adr_o : std_logic_vector(31 downto 0);
 208
 209 signal m_wb_cti_o : std_logic_vector(2 downto 0);
 210 signal m_wb_bte_o : std_logic_vector(1 downto 0);
 211
 212 BEGIN
 213
 214 PCI_RSTn    <= pci_rst_o    when (pci_rst_oe_o = '1')     else 'Z';
 215 PCI_INTAn   <= pci_inta_o   when (pci_inta_oe_o = '1')    else 'Z';
 216 PCI_REQn    <= pci_req_o    when (pci_req_oe_o = '1')     else 'Z';
 217 PCI_FRAMEn  <= pci_frame_o  when (pci_frame_oe_o = '1')     else 'Z';
 218 PCI_IRDYn   <= pci_irdy_o   when (pci_irdy_oe_o = '1')    else 'Z';
 219 PCI_DEVSELn <= pci_devsel_o when (pci_devsel_oe_o = '1')  else 'Z';
 220 PCI_TRDYn   <= pci_trdy_o   when (pci_trdy_oe_o = '1')    else 'Z';
 221 PCI_STOPn   <= pci_stop_o   when (pci_stop_oe_o = '1')    else 'Z';
 222 PCI_PAR     <= pci_par_o    when (pci_par_oe_o = '1')     else 'Z';
 223 PCI_PERRn   <= pci_perr_o   when (pci_perr_oe_o = '1')    else 'Z';
 224 PCI_SERRn   <= pci_serr_o   when (pci_serr_oe_o = '1')    else 'Z';
 225 MD_PAD_IO   <= md_pad_o     when (md_padoe_o = '1')       else 'Z';
 226
 227 BLA1: FOR i in 31 downto 0 generate
 228 PCI_AD(i) <= pci_ad_o(i) when (pci_ad_oe_o(i) = '1') else 'Z';
 229 end generate;
 230
 231 BLA2: FOR i in 3 downto 0 generate
 232 PCI_CBEn(i) <= pci_cbe_o(i) when (pci_cbe_oe_o(i) = '1') else 'Z';
 233 end generate;
 234
 235 wb_adr_i <= wbm_adr_o (11 downto 2);
 236
 237 Inst_pci_bridge32: pci_bridge32 PORT MAP(
 238         wb_clk_i => wb_clk_i ,
 239         wb_rst_i => '0',
 240         wb_rst_o => wb_rst_i,
 241         wb_int_i => int_o,
 242         -- wb_int_o => ,
 243         wbs_adr_i => m_wb_adr_o ,
 244         wbs_dat_i => m_wb_dat_o,
 245         wbs_dat_o => m_wb_dat_i,
 246         wbs_sel_i => m_wb_sel_o,
 247         wbs_cyc_i => m_wb_cyc_o,
 248         wbs_stb_i => m_wb_stb_o,
 249         wbs_we_i => m_wb_we_o,
 250         wbs_cti_i => m_wb_cti_o,
 251         wbs_bte_i => m_wb_bte_o,
 252         wbs_ack_o => m_wb_ack_i,
 253         -- wbs_rty_o => ,
 254         wbs_err_o => m_wb_err_i,
 255         wbm_adr_o => wbm_adr_o,
 256         wbm_dat_i => wb_dat_o,
 257         wbm_dat_o => wb_dat_i,
 258         wbm_sel_o => wb_sel_i,
 259         wbm_cyc_o => wb_cyc_i,
 260         wbm_stb_o => wb_stb_i,
 261         wbm_we_o => wb_we_i,
 262         -- wbm_cti_o => ,
 263         -- wbm_bte_o => ,
 264         wbm_ack_i => wb_ack_o ,
 265         wbm_rty_i => '0',
 266         wbm_err_i => wb_err_o,
 267         pci_clk_i => PCI_CLOCK,
 268         pci_rst_i => PCI_RSTn,
 269         pci_rst_o => pci_rst_o ,
 270         pci_rst_oe_o => pci_rst_oe_o,
 271         pci_inta_i => PCI_INTAn,
 272         pci_inta_o => pci_inta_o,
 273         pci_inta_oe_o => pci_inta_oe_o,
 274         pci_req_o => pci_req_o,
 275         pci_req_oe_o => pci_req_oe_o,
 276         pci_gnt_i => PCI_GNTn,
 277         pci_frame_i => PCI_FRAMEn,
 278         pci_frame_o => pci_frame_o,
 279         pci_frame_oe_o => pci_frame_oe_o,
 280         pci_irdy_oe_o => pci_irdy_oe_o,
 281         pci_devsel_oe_o => pci_devsel_oe_o,
 282         pci_trdy_oe_o => pci_trdy_oe_o,
 283         pci_stop_oe_o => pci_stop_oe_o,
 284         pci_ad_oe_o => pci_ad_oe_o,
 285         pci_cbe_oe_o => pci_cbe_oe_o,
 286         pci_irdy_i => PCI_IRDYn,
 287         pci_irdy_o => pci_irdy_o,
 288         pci_idsel_i => PCI_IDSEL,
 289         pci_devsel_i => PCI_DEVSELn,
 290         pci_devsel_o => pci_devsel_o,
 291         pci_trdy_i => PCI_TRDYn,
 292         pci_trdy_o => pci_trdy_o,
 293         pci_stop_i => PCI_STOPn,
 294         pci_stop_o => pci_stop_o,
 295         pci_ad_i => PCI_AD,
 296         pci_ad_o => pci_ad_o,
 297         pci_cbe_i => PCI_CBEn,
 298         pci_cbe_o => pci_cbe_o,
 299         pci_par_i => PCI_PAR,
 300         pci_par_o => pci_par_o,
 301         pci_par_oe_o => pci_par_oe_o,
 302         pci_perr_i => PCI_PERRn,
 303         pci_perr_o => pci_perr_o,
 304         pci_perr_oe_o => pci_perr_oe_o,
 305         pci_serr_o => pci_serr_o,
 306         pci_serr_oe_o =>  pci_serr_oe_o
 307 );
 308
 309 Inst_eth_top: eth_top PORT MAP(
 310         wb_clk_i   => wb_clk_i  ,
 311         wb_rst_i   => wb_rst_i  ,
 312         wb_dat_i   => wb_dat_i  ,
 313         wb_dat_o   => wb_dat_o  ,
 314         wb_adr_i   => wb_adr_i  ,
 315         wb_sel_i   => wb_sel_i  ,
 316         wb_we_i    => wb_we_i   ,
 317         wb_cyc_i   => wb_cyc_i  ,
 318         wb_stb_i   => wb_stb_i  ,
 319         wb_ack_o   => wb_ack_o  ,
 320         wb_err_o   => wb_err_o  ,
 321         m_wb_adr_o => m_wb_adr_o,
 322         m_wb_sel_o => m_wb_sel_o,
 323         m_wb_we_o  => m_wb_we_o ,
 324         m_wb_dat_o => m_wb_dat_o,
 325         m_wb_dat_i => m_wb_dat_i,
 326         m_wb_cyc_o => m_wb_cyc_o,
 327         m_wb_stb_o => m_wb_stb_o,
 328         m_wb_ack_i => m_wb_ack_i,
 329         m_wb_err_i => m_wb_err_i,
 330         mtx_clk_pad_i => MTX_CLK_PAD_I,
 331         mtxd_pad_o => MTXD_PAD_O,
 332         mtxen_pad_o => MTXEN_PAD_O,
 333         mtxerr_pad_o => LED_2,
 334         mrx_clk_pad_i => MRX_CLK_PAD_I,
 335         mrxd_pad_i => MRXD_PAD_I,
 336         mrxdv_pad_i => MRXDV_PAD_I,
 337         mrxerr_pad_i => MRXERR_PAD_I,
 338         mcoll_pad_i => MCOLL_PAD_I,
 339         mcrs_pad_i => MCRS_PAD_I,
 340         mdc_pad_o => MDC_PAD_O,
 341         md_pad_i => MD_PAD_IO,
 342         md_pad_o => md_pad_o,
 343         md_padoe_o => md_padoe_o,
 344         m_wb_cti_o => m_wb_cti_o,
 345         m_wb_bte_o => m_wb_bte_o,
 346         int_o => int_o
 347 );
 348
 349 end architecture ethernet_arch;