fpga/tl_config.hjson

{
  // Top-level configuration for the Kelvin SoC crossbar.
  name: "kelvin_soc_xbar",
  clock: "clk_i",
  reset: "rst_ni",

  // Define all the hosts (masters) and devices (slaves) in the system.
  nodes: [
    // Hosts (CPU Cores)
    { name: "kelvin_core", type: "host", clock: "clk_i", reset: "rst_ni", addr_space: "asid0" },
    { name: "ibex_core_i", type: "host", clock: "clk_i", reset: "rst_ni", addr_space: "asid0" },
    { name: "ibex_core_d", type: "host", clock: "clk_i", reset: "rst_ni", addr_space: "asid0" },

    // Devices (Peripherals and Memory)
    {
      name: "kelvin_device",
      type: "device",
      clock: "clk_i",
      reset: "rst_ni",
      xbar: false,
      addr_range: [
        { base_addrs: {"asid0": "0x00000000"}, size_byte: "0x2000" }, // 8kB
        { base_addrs: {"asid0": "0x00010000"}, size_byte: "0x8000" }, // 32kB
        { base_addrs: {"asid0": "0x00030000"}, size_byte: "0x1000" }  // 4kB
      ]
    },
    {
      name: "rom",
      type: "device",
      clock: "clk_i",
      reset: "rst_ni",
      xbar: false,
      addr_range: [{ base_addrs: {"asid0": "0x10000000"}, size_byte: "0x8000" }] // 32kB
    },
    {
      name: "sram",
      type: "device",
      clock: "clk_i",
      reset: "rst_ni",
      xbar: false,
      addr_range: [{ base_addrs: {"asid0": "0x20000000"}, size_byte: "0x400000" }] // 4MB
    },
    {
      name: "uart0",
      type: "device",
      clock: "clk_i",
      reset: "rst_ni",
      xbar: false,
      addr_range: [{ base_addrs: {"asid0": "0x40000000"}, size_byte: "0x1000" }]
    },
    {
      name: "uart1",
      type: "device",
      clock: "clk_i",
      reset: "rst_ni",
      xbar: false,
      addr_range: [{ base_addrs: {"asid0": "0x40010000"}, size_byte: "0x1000" }]
    },
    {
      name: "spi0",
      type: "device",
      clock: "spi_clk_i", // Using a separate clock for the SPI peripheral
      reset: "rst_ni",
      xbar: false,
      addr_range: [{ base_addrs: {"asid0": "0x40020000"}, size_byte: "0x1000" }]
    }
  ],

  // Define which hosts can access which devices.
  connections: {
    kelvin_core: [ "sram", "uart1", "spi0" ],
    ibex_core_i: [ "rom", "sram" ],
    ibex_core_d: [ "rom", "sram", "uart0", "kelvin_device" ]
  },

  // Define clock connections for all components.
  clock_connections: {
    clk_i: [
      "kelvin_core",
      "ibex_core_i",
      "ibex_core_d",
      "kelvin_device",
      "rom",
      "sram",
      "uart0",
      "uart1"
    ],
    spi_clk_i: [
      "spi0"
    ]
  },
  reset_connections: {
    rst_ni: "rst_ni"
  }
}