diff --git a/artiq/firmware/libproto_artiq/drtioaux_proto.rs b/artiq/firmware/libproto_artiq/drtioaux_proto.rs
index 3d526734d..64e279614 100644
--- a/artiq/firmware/libproto_artiq/drtioaux_proto.rs
+++ b/artiq/firmware/libproto_artiq/drtioaux_proto.rs
@@ -18,7 +18,7 @@ impl<T> From<IoError<T>> for Error<T> {
 pub enum Packet {
     EchoRequest,
     EchoReply,
-    ResetRequest { phy: bool },
+    ResetRequest,
     ResetAck,
     TSCAck,
 
@@ -62,9 +62,7 @@ impl Packet {
         Ok(match reader.read_u8()? {
             0x00 => Packet::EchoRequest,
             0x01 => Packet::EchoReply,
-            0x02 => Packet::ResetRequest {
-                phy: reader.read_bool()?
-            },
+            0x02 => Packet::ResetRequest,
             0x03 => Packet::ResetAck,
             0x04 => Packet::TSCAck,
 
@@ -192,10 +190,8 @@ impl Packet {
                 writer.write_u8(0x00)?,
             Packet::EchoReply =>
                 writer.write_u8(0x01)?,
-            Packet::ResetRequest { phy } => {
-                writer.write_u8(0x02)?;
-                writer.write_bool(phy)?;
-            },
+            Packet::ResetRequest =>
+                writer.write_u8(0x02)?,
             Packet::ResetAck =>
                 writer.write_u8(0x03)?,
             Packet::TSCAck =>
diff --git a/artiq/firmware/runtime/rtio_mgt.rs b/artiq/firmware/runtime/rtio_mgt.rs
index cedfb8686..726edc886 100644
--- a/artiq/firmware/runtime/rtio_mgt.rs
+++ b/artiq/firmware/runtime/rtio_mgt.rs
@@ -334,7 +334,7 @@ pub mod drtio {
             let linkno = linkno as u8;
             if link_rx_up(linkno) {
                 let reply = aux_transact(io, aux_mutex, linkno,
-                    &drtioaux::Packet::ResetRequest { phy: false });
+                    &drtioaux::Packet::ResetRequest);
                 match reply {
                     Ok(drtioaux::Packet::ResetAck) => (),
                     Ok(_) => error!("[LINK#{}] reset failed, received unexpected aux packet", linkno),
@@ -419,7 +419,7 @@ pub fn startup(io: &Io, aux_mutex: &Mutex,
         }
     }
     unsafe {
-            csr::rtio_core::reset_phy_write(1);
+        csr::rtio_core::reset_phy_write(1);
     }
 
     drtio::startup(io, aux_mutex, routing_table, up_destinations);
diff --git a/artiq/firmware/satman/main.rs b/artiq/firmware/satman/main.rs
index bc12bccfd..22fb5cd75 100644
--- a/artiq/firmware/satman/main.rs
+++ b/artiq/firmware/satman/main.rs
@@ -75,18 +75,13 @@ fn process_aux_packet(_repeaters: &mut [repeater::Repeater],
     match packet {
         drtioaux::Packet::EchoRequest =>
             drtioaux::send(0, &drtioaux::Packet::EchoReply),
-        drtioaux::Packet::ResetRequest { phy } => {
+        drtioaux::Packet::ResetRequest => {
             info!("resetting RTIO");
-            if phy {
-                drtiosat_reset_phy(true);
-                drtiosat_reset_phy(false);
-            } else {
-                drtiosat_reset(true);
-                clock::spin_us(100);
-                drtiosat_reset(false);
-            }
+            drtiosat_reset(true);
+            clock::spin_us(100);
+            drtiosat_reset(false);
             for rep in _repeaters.iter() {
-                if let Err(e) = rep.rtio_reset(phy) {
+                if let Err(e) = rep.rtio_reset() {
                     error!("failed to issue RTIO reset ({})", e);
                 }
             }
diff --git a/artiq/firmware/satman/repeater.rs b/artiq/firmware/satman/repeater.rs
index ca0531ac5..f51d413aa 100644
--- a/artiq/firmware/satman/repeater.rs
+++ b/artiq/firmware/satman/repeater.rs
@@ -242,21 +242,17 @@ impl Repeater {
         Ok(())
     }
 
-    pub fn rtio_reset(&self, phy: bool) -> Result<(), drtioaux::Error<!>> {
+    pub fn rtio_reset(&self) -> Result<(), drtioaux::Error<!>> {
         let repno = self.repno as usize;
-        if !phy {
-            unsafe { (csr::DRTIOREP[repno].reset_write)(1); }
-            clock::spin_us(100);
-            unsafe { (csr::DRTIOREP[repno].reset_write)(0); }
-        }
+        unsafe { (csr::DRTIOREP[repno].reset_write)(1); }
+        clock::spin_us(100);
+        unsafe { (csr::DRTIOREP[repno].reset_write)(0); }
 
         if self.state != RepeaterState::Up {
             return Ok(());
         }
 
-        drtioaux::send(self.auxno, &drtioaux::Packet::ResetRequest {
-            phy: phy
-        }).unwrap();
+        drtioaux::send(self.auxno, &drtioaux::Packet::ResetRequest).unwrap();
         let reply = self.recv_aux_timeout(200)?;
         if reply != drtioaux::Packet::ResetAck {
             return Err(drtioaux::Error::UnexpectedReply);
@@ -278,5 +274,5 @@ impl Repeater {
 
     pub fn sync_tsc(&self) -> Result<(), drtioaux::Error<!>> { Ok(()) }
 
-    pub fn rtio_reset(&self, _phy: bool) -> Result<(), drtioaux::Error<!>> { Ok(()) }
+    pub fn rtio_reset(&self) -> Result<(), drtioaux::Error<!>> { Ok(()) }
 }