diff --git a/hosts/pi4/boot.nix b/hosts/pi4/boot.nix
index ab997bb..1247376 100755
--- a/hosts/pi4/boot.nix
+++ b/hosts/pi4/boot.nix
@@ -35,10 +35,18 @@ in
     all = { # [all] conditional filter, https://www.raspberrypi.com/documentation/computers/config_txt.html#conditional-filters
 
       base-dt-params = {
+        i2c_arm = {
+          enable = true;
+          value = "on";
+        };
         i2c = {
           enable = true;
           value = "on";
         };
+        spi = {
+          enable = true;
+          value = "on";
+        };
       };
 
       options = {