sja1000: added module can_top for backward compatibility

diff --git a/system/ip/sja1000_1.0/hdl/can_top.v b/system/ip/sja1000_1.0/hdl/can_top.v
new file mode 100644 (file)
index 0000000..81879ac
--- /dev/null
+++ b/system/ip/sja1000_1.0/hdl/can_top.v
@@ -0,0 +1,155 @@
+/**
+       Compatibility module. Should not be used in new designs.
+       Use can_top_raw with appropriate interface (can_ifc_*).
+*/
+
+`include "timescale.v"
+`include "can_defines.v"
+
+module can_top
+( 
+  `ifdef CAN_WISHBONE_IF
+    wb_clk_i,
+    wb_rst_i,
+    wb_dat_i,
+    wb_dat_o,
+    wb_cyc_i,
+    wb_stb_i,
+    wb_we_i,
+    wb_adr_i,
+    wb_ack_o,
+  `else
+    rst_i,
+    ale_i,
+    rd_i,
+    wr_i,
+    port_0_io,
+    cs_can_i,
+  `endif
+  clk_i,
+  rx_i,
+  tx_o,
+  bus_off_on,
+  irq_on,
+  clkout_o
+
+  // Bist
+`ifdef CAN_BIST
+  ,
+  // debug chain signals
+  mbist_si_i,       // bist scan serial in
+  mbist_so_o,       // bist scan serial out
+  mbist_ctrl_i        // bist chain shift control
+`endif
+);
+
+input        clk_i;
+input        rx_i;
+output       tx_o;
+output       bus_off_on;
+output       irq_on;
+output       clkout_o;
+
+wire       reg_rst;
+wire       reg_cs;
+wire       reg_we;
+wire [7:0] reg_addr;
+wire [7:0] reg_data_in;
+wire [7:0] reg_data_out;
+
+// Bist
+`ifdef CAN_BIST
+  input   mbist_si_i;       // bist scan serial in
+  output  mbist_so_o;       // bist scan serial out
+  input [`CAN_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;       // bist chain shift control
+`endif
+
+can_top_raw #(
+) can_top_raw_inst (
+  .reg_we_i(reg_we),
+  .reg_re_i(reg_re),
+  .reg_data_in(reg_data_in),
+  .reg_data_out(reg_data_out),
+  .reg_addr_read_i(reg_addr_read),
+  .reg_addr_write_i(reg_addr_write),
+  .reg_rst_i(reg_rst),
+
+  .clk_i(clk_i),
+  .rx_i(rx_i),
+  .tx_o(tx_o),
+  .bus_off_on(bus_on_off),
+  .irq_on(irq_on),
+  .clkout_o(clkout_o)
+
+  // Bist
+`ifdef CAN_BIST
+  // debug chain signals
+  .mbist_si_i(mbist_si_i),       // bist scan serial in
+  .mbist_so_o(mbist_so_o),       // bist scan serial out
+  .mbist_ctrl_i(mbist_ctrl_i)    // bist chain shift control
+`endif
+);
+
+`ifdef CAN_WISHBONE_IF
+  input        wb_clk_i;
+  input        wb_rst_i;
+  input  [7:0] wb_dat_i;
+  output [7:0] wb_dat_o;
+  input        wb_cyc_i;
+  input        wb_stb_i;
+  input        wb_we_i;
+  input  [7:0] wb_adr_i;
+  output       wb_ack_o;
+
+  can_ifc_wb #(
+  ) can_ifc_wb_inst (
+    .clk_i(clk_i),
+    .reg_rst_o(reg_rst),
+    .reg_cs_o(reg_cs),
+    .reg_we_o(reg_we),
+    .reg_addr_o(reg_addr),
+    .reg_data_in_o(reg_data_in),
+    .reg_data_out_i(reg_data_out),
+  
+    .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_cyc_i(wb_cyc_i),
+    .wb_stb_i(wb_stb_i),
+    .wb_we_i(wb_we_i),
+    .wb_adr_i(wb_adr_i),
+    .wb_ack_o(wb_ack_o)
+  );
+`else
+  input        rst_i;
+  input        ale_i;
+  input        rd_i;
+  input        wr_i;
+  inout  [7:0] port_0_io;
+  input        cs_can_i;
+
+  wire       ale;
+  wire       rd;
+  wire       wr;
+  wire [7:0] port_0;
+  wire       cs_can;
+  can_ifc_8051 #(
+  ) can_ifc_wb_inst (
+    .clk_i(clk_i),
+    .reg_rst_o(reg_rst),
+    .reg_cs_o(reg_cs),
+    .reg_we_o(reg_we),
+    .reg_addr_o(reg_addr),
+    .reg_data_in_o(reg_data_in),
+    .reg_data_out_i(reg_data_out),
+  
+    .rst_i(rst_i),
+    .ale_i(ale),
+    .rd_i(rd),
+    .wr_i(wr),
+    .port_0_io(port_0),
+    .cs_can_i(cs_can),
+    );
+`endif
+);