artiq: use new misoc for artiq-6

artiq-fast/default.nix

@@ -1,7 +1,8 @@
 { pkgs ? import <nixpkgs> {}}:
 with pkgs;
 let
-  pythonDeps = import ./pkgs/python-deps.nix { inherit (pkgs) stdenv fetchFromGitHub python3Packages; };
+  artiq6 = pkgs.lib.strings.versionAtLeast mainPackages.artiq.version "6.0";
+  pythonDeps = import ./pkgs/python-deps.nix { inherit (pkgs) stdenv fetchFromGitHub python3Packages; misoc-new = artiq6; };
 
   boards = [
     { target = "kasli"; variant = "tester"; }
@@ -145,6 +146,6 @@ let
     };
   };
 
-  condaWindows = if (pkgs.lib.strings.versionAtLeast mainPackages.artiq.version "6.0") then condaWindowsExperimental else condaWindowsLegacy;
+  condaWindows = if artiq6 then condaWindowsExperimental else condaWindowsLegacy;
 in
   boardPackages // mainPackages // condaNoarch // condaLinux // condaWindows

artiq-fast/pkgs/python-deps.nix

@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, python3Packages }:
+{ stdenv, fetchFromGitHub, python3Packages, misoc-new }:
 
 rec {
   # User dependencies
@@ -53,16 +53,24 @@ rec {
   };
 
   # Development/firmware dependencies
-  misoc = python3Packages.buildPythonPackage rec {
+  misoc = python3Packages.buildPythonPackage {
     name = "misoc";
     
-    src = fetchFromGitHub {
+    src = if misoc-new
+      then (fetchFromGitHub {
+        owner = "m-labs";
+        repo = "misoc";
+        rev = "9cad449a283d3b7a6e496afa523547df06e75829";
+        sha256 = "1fw3qfhaa435iv5qnvhhfwj29skhkj6yagr6ila9va9nb2zvklf5";
+        fetchSubmodules = true;
+      })
+      else (fetchFromGitHub {
         owner = "m-labs";
         repo = "misoc";
         rev = "7e5fe8d38835175202dad2c51d37b20b76fd9e16";
         sha256 = "0i8bppz7x2s45lx9n49c0r87pqps09z35yzc17amvx21qsplahxn";
         fetchSubmodules = true;
-    };
+      });
 
     # TODO: fix misoc bitrot and re-enable tests
     doCheck = false;