cpu: Add processing domains + IMC

Signed-off-by: Ian M. <ian@aptel.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/rtl/cpu/cpu_lockdom.sv b/rtl/cpu/cpu_lockdom.sv
new file mode 100644
index 0000000..81d3d6a
--- /dev/null
+++ b/rtl/cpu/cpu_lockdom.sv
@@ -0,0 +1,37 @@
+//
+// Copyright (c) 2026, Apollo Telephone Laboratories.
+// Provided under the BSD-3 clause.
+//
+
+`include "bus/ari.svh"
+
+//
+// Represents a lockstep domain
+//
+// @clk_i:   Clock input
+// @reset_i:
+//
+module cpu_lockdom (
+    input wire clk_i,
+    input wire reset_i,
+
+    output AriFrame mb_r_tap_o
+);
+    logic imc_write_en = 0;
+    logic imc_req = 0;
+    logic imc_op_done;
+    logic [PMA_XLEN-1:0] imc_ad;
+    logic [63:0] imc_data;
+
+    // Integrated memory controller
+    cpu_imc imc (
+        .clk_i(clk_i),
+        .reset_i(reset_i),
+        .write_en_i(imc_write_en),
+        .req_i(imc_req),
+        .ad_i(imc_ad),
+        .data_i(imc_data),
+        .mb_r_tap_o(mb_r_tap_o),
+        .op_done_o(imc_op_done)
+    );
+endmodule