From d07407818d2f444ca3cc10e57e412109cde7f1e4 Mon Sep 17 00:00:00 2001
From: Las Safin <me@las.rs>
Date: Sat, 25 Sep 2021 12:35:42 +0000
Subject: [PATCH] Pin version of yosys

---
 flake.lock | 20 +++++++++++++++++++-
 flake.nix  |  9 ++++++++-
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/flake.lock b/flake.lock
index c69ffb0b..8193dbc8 100644
--- a/flake.lock
+++ b/flake.lock
@@ -104,7 +104,25 @@
         "nix-litex": "nix-litex",
         "nixpkgs": "nixpkgs",
         "nmigen": "nmigen",
-        "nmigen-soc": "nmigen-soc"
+        "nmigen-soc": "nmigen-soc",
+        "yosys": "yosys"
+      }
+    },
+    "yosys": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1617979565,
+        "narHash": "sha256-M8ppe+lL/pgd2sXh7bM6/sbk1099KKECeWA5mXtqE6Y=",
+        "owner": "YosysHQ",
+        "repo": "yosys",
+        "rev": "a58571d0fe8971cb7d3a619a31b2c21be6d75bac",
+        "type": "github"
+      },
+      "original": {
+        "owner": "YosysHQ",
+        "repo": "yosys",
+        "rev": "a58571d0fe8971cb7d3a619a31b2c21be6d75bac",
+        "type": "github"
       }
     }
   },
diff --git a/flake.nix b/flake.nix
index 54ddb1a8..3bd7f9e9 100644
--- a/flake.nix
+++ b/flake.nix
@@ -12,10 +12,12 @@
   inputs.nmigen-soc.flake = false;
   inputs.migen.url = "github:m-labs/migen";
   inputs.migen.flake = false;
+  inputs.yosys.url = "github:YosysHQ/yosys?rev=a58571d0fe8971cb7d3a619a31b2c21be6d75bac";
+  inputs.yosys.flake = false;
   inputs.nix-litex.url = "git+https://git.sr.ht/~lschuermann/nix-litex?ref=main";
   inputs.nix-litex.flake = false;
 
-  outputs = { self, nixpkgs, c4m-jtag, nmigen, nmigen-soc, nix-litex, migen }:
+  outputs = { self, nixpkgs, c4m-jtag, nmigen, nmigen-soc, nix-litex, migen, yosys }:
     let
       getv = x: builtins.substring 0 8 x.lastModifiedDate;
 
@@ -61,6 +63,11 @@
           });
         };
 
+        yosys = prev.yosys.overrideAttrs (_: {
+          version = "0.9+4052";
+          src = yosys;
+        });
+
         libresoc-pre-litex = final.callPackage (import ./nix/pre-litex.nix { version = getv self; }) { python3Packages = final.python37Packages; };
         libresoc-ls180 = final.callPackage (import ./nix/ls180.nix { version = getv self; }) { python3Packages = final.python37Packages; };
         libresoc-ecp5 = final.callPackage (import ./nix/ecp5.nix { version = getv self; }) { python3Packages = final.python37Packages; };
-- 
2.30.2