Hardcode OpenTitan ans Safety Island JTAG clock frequencies to 50 MHz.

pulp-platform · Sep 3, 2024 · 8fb5858 · 8fb5858
1 parent 05f917e
commit 8fb5858
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/target/sim/src/astral_fix.sv b/target/sim/src/astral_fix.sv
@@ -840,7 +840,8 @@ module astral_fixture;
   ///////////////////////
 
   if (CarfieldIslandsCfg.safed.enable) begin : gen_safed_vip
-    localparam time ClkPeriodSafedJtag = ClkPeriodRef * 2;
+    // We assume 50 MHz for Safety Island JTAG
+    localparam time ClkPeriodSafedJtag = 20 ns;
 
     localparam axi_in_t AxiIn = gen_axi_in(DutCfg);
     localparam int unsigned AxiSlvIdWidth = DutCfg.AxiMstIdWidth + $clog2(AxiIn.num_in);
@@ -906,7 +907,8 @@ module astral_fixture;
   /////////////////////////
 
   if (CarfieldIslandsCfg.secured.enable) begin: gen_scured_vip
-    localparam time ClkPeriodSecdJtag = ClkPeriodJtag / 5;
+    // We assume 50 MHz for OpenTitan JTAG
+    localparam time ClkPeriodSecdJtag = 20 ns;
 
     // VIP
     vip_security_island_soc #(