Added synchronous clear for setback during recovery.

pulp-platform · Nov 24, 2023 · 33557d2 · 33557d2
1 parent 498d241
commit 33557d2
Show file tree

Hide file tree

Showing 3 changed files with 4 additions and 1 deletion.
diff --git a/core/cva6.sv b/core/cva6.sv
@@ -26,6 +26,7 @@ module cva6 import ariane_pkg::*; #(
 ) (
   input  logic                         clk_i,
   input  logic                         rst_ni,
+  input  logic                         clear_i,
   // Core ID, Cluster ID and boot address are considered more or less static
   input  logic [riscv::VLEN-1:0]       boot_addr_i,  // reset boot address
   input  logic [riscv::XLEN-1:0]       hart_id_i,    // hart id in a multicore environment (reflected in a CSR)
@@ -301,7 +302,7 @@ module cva6 import ariane_pkg::*; #(
     if (~rst_ni) begin
       rst_uarch_n <= 1'b0;
     end else begin
-      rst_uarch_n <= rst_uarch_controller_n;
+      rst_uarch_n <= rst_uarch_controller_n | ~clear_i;
     end
   end
 

diff --git a/corev_apu/tb/ariane.sv b/corev_apu/tb/ariane.sv
@@ -68,6 +68,7 @@ module ariane import ariane_pkg::*; #(
   ) i_cva6 (
     .clk_i                ( clk_i                     ),
     .rst_ni               ( rst_ni                    ),
+    .clear_i              ( '0                        ),
     .boot_addr_i          ( boot_addr_i               ),
     .hart_id_i            ( hart_id_i                 ),
     .irq_i                ( irq_i                     ),

diff --git a/corev_apu/tb/ariane_testharness.sv b/corev_apu/tb/ariane_testharness.sv
@@ -845,6 +845,7 @@ module ariane_testharness #(
     ) i_ariane (
       .clk_i                ( clk_i               ),
       .rst_ni               ( ndmreset_n          ),
+      .clear_i              ( '0                  ),
       .boot_addr_i          ( ariane_soc::ROMBase ), // start fetching from ROM
       .hart_id_i            ( {56'h0, 8'(i)}      ),
       .irq_i                ( irqs[i]             ),