diff --git a/runtime/src/main.rs b/runtime/src/main.rs
index b920e668..447bf4c8 100644
--- a/runtime/src/main.rs
+++ b/runtime/src/main.rs
@@ -53,5 +53,9 @@ pub fn main_core0() {
 
     info!("Detected gateware: {}", identifier_read(&mut [0; 64]));
 
+    unsafe {
+        pl::csr::rtio_core::reset_phy_write(1);
+    }
+
     comms::main(timer);
 }
diff --git a/runtime/src/rtio.rs b/runtime/src/rtio.rs
index 148c1109..495c322b 100644
--- a/runtime/src/rtio.rs
+++ b/runtime/src/rtio.rs
@@ -19,12 +19,8 @@ pub struct TimestampedData {
 }
 
 pub extern fn init() {
-    // TODO
     unsafe {
         csr::rtio_core::reset_write(1);
-        csr::rtio_core::reset_phy_write(1);
-        csr::rtio_core::reset_write(0);
-        csr::rtio_core::reset_phy_write(0);
     }
 }