nix: patch peakrdl-regblock to silence verilator's MULTIDRIVEN warning

4 files changed, 28 insertions, 0 deletions

diff --git a/nix/peakrdl/0001-Add-verilator-MULTIDRIVEN-hack.patch b/nix/peakrdl/0001-Add-verilator-MULTIDRIVEN-hack.patch
new file mode 100644
index 0000000..13bf7c1
--- /dev/null
+++ b/nix/peakrdl/0001-Add-verilator-MULTIDRIVEN-hack.patch
@@ -0,0 +1,24 @@
+From aef302875ec38e6f91e04f9368ba0ed84cc73b69 Mon Sep 17 00:00:00 2001
+From: Alejandro Soto <alejandro@34project.org>
+Date: Sun, 5 May 2024 18:17:10 -0600
+Subject: [PATCH] Add verilator MULTIDRIVEN hack
+
+---
+ src/peakrdl_regblock/module_tmpl.sv | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/peakrdl_regblock/module_tmpl.sv b/src/peakrdl_regblock/module_tmpl.sv
+index bcb8566..92183b5 100644
+--- a/src/peakrdl_regblock/module_tmpl.sv
++++ b/src/peakrdl_regblock/module_tmpl.sv
+@@ -27,6 +27,7 @@ module {{ds.module_name}}
+         {{hwif.port_declaration|indent(8)}}
+     );
+ 
++    // verilator lint_off MULTIDRIVEN
+     //--------------------------------------------------------------------------
+     // CPU Bus interface logic
+     //--------------------------------------------------------------------------
+-- 
+2.42.0
+
diff --git a/nix/peakrdl-regblock.nix b/nix/peakrdl/peakrdl-regblock.nix
index daacc5a..3a3f0f6 100644
--- a/nix/peakrdl-regblock.nix
+++ b/nix/peakrdl/peakrdl-regblock.nix
@@ -19,6 +19,10 @@ buildPythonPackage {
     sha256 = "sha256-N+YZSuHdSSMCmgko5YZpa7wDj3vMy2J7prPdfjj53GA=";
   };
 
+  patches = [
+    ./0001-Add-verilator-MULTIDRIVEN-hack.patch
+  ];
+
   propagatedBuildInputs = [
     jinja2
     (callPackage ./systemrdl-compiler.nix { })
diff --git a/nix/peakrdl.nix b/nix/peakrdl/peakrdl.nix
index 48cf1fa..48cf1fa 100644
--- a/nix/peakrdl.nix
+++ b/nix/peakrdl/peakrdl.nix
diff --git a/nix/systemrdl-compiler.nix b/nix/peakrdl/systemrdl-compiler.nix
index 00c92d7..00c92d7 100644
--- a/nix/systemrdl-compiler.nix
+++ b/nix/peakrdl/systemrdl-compiler.nix