Added clock gating cell for HWPE Subsystem.

pulp-platform · Sep 9, 2023 · 94450be · 94450be
1 parent 5e2ea6a
commit 94450be
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/rtl/hwpe_subsystem.sv b/rtl/hwpe_subsystem.sv
@@ -26,6 +26,7 @@ module hwpe_subsystem
   input  logic                    clk,
   input  logic                    rst_n,
   input  logic                    test_mode,
+  input  logic                    hwpe_en_i,
 
   hci_core_intf.master            hwpe_xbar_master,
   XBAR_PERIPH_BUS.Slave           hwpe_cfg_slave,
@@ -34,18 +35,27 @@ module hwpe_subsystem
   output logic                    busy_o
 );
 
+  logic hwpe_clk;
+
+  tc_clk_gating i_hwpe_clock_gate (
+    .clk_i     ( clk       ),
+    .en_i      ( hwpe_en_i ),
+    .test_en_i ( test_mode ),
+    .clk_o     ( hwpe_clk  )
+  );
+
   hwpe_ctrl_intf_periph #(
     .ID_WIDTH ( ID_WIDTH )
   ) periph (
-    .clk ( clk )
+    .clk ( hwpe_clk )
   );
 
   redmule_top   #(
     .ID_WIDTH    ( ID_WIDTH         ),
     .N_CORES     ( N_CORES          ),
     .DW          ( N_MASTER_PORT*32 )
   ) i_redmule    (
-    .clk_i       ( clk              ),
+    .clk_i       ( hwpe_clk         ),
     .rst_ni      ( rst_n            ),
     .test_mode_i ( test_mode        ),
     .busy_o      ( busy_o           ),

diff --git a/rtl/pulp_cluster.sv b/rtl/pulp_cluster.sv
@@ -1167,6 +1167,7 @@ generate
       .clk               ( clk_i          ),
       .rst_n             ( rst_ni         ),
       .test_mode         ( test_mode_i    ),
+      .hwpe_en_i         ( s_hwpe_en      ),
       .hwpe_xbar_master  ( s_hci_hwpe [0] ),
       .hwpe_cfg_slave    ( s_hwpe_cfg_bus ),
       .evt_o             ( s_hwpe_evt     ),