diff --git a/libboard_zynq/src/eth/phy/mod.rs b/libboard_zynq/src/eth/phy/mod.rs
index 9fdfbc7..e4639bb 100644
--- a/libboard_zynq/src/eth/phy/mod.rs
+++ b/libboard_zynq/src/eth/phy/mod.rs
@@ -1,5 +1,4 @@
 pub mod id;
-use id::{identify_phy, PhyIdentifier};
 mod status;
 pub use status::Status;
 mod control;
@@ -31,111 +30,154 @@ pub trait PhyAccess {
     fn write_phy(&mut self, addr: u8, reg: u8, data: u16);
 }
 
-#[derive(Clone)]
-pub struct Phy {
-    pub addr: u8,
-}
-
-const OUI_MARVELL: u32 = 0x005043;
-const OUI_REALTEK: u32 = 0x000732;
-const OUI_LANTIQ : u32 = 0x355969;
-
-impl Phy {
-    /// Probe all addresses on MDIO for a known PHY
-    pub fn find<PA: PhyAccess>(pa: &mut PA) -> Option<Phy> {
-        (1..32).find(|addr| {
-            match identify_phy(pa, *addr) {
-                Some(PhyIdentifier {
-                    oui: OUI_MARVELL,
-                    // Marvell 88E1116R
-                    model: 36,
-                    ..
-                }) => true,
-                Some(PhyIdentifier {
-                    oui: OUI_MARVELL,
-                    // Marvell 88E1512
-                    model: 29,
-                    ..
-                }) => true,
-                Some(PhyIdentifier {
-                    oui: OUI_REALTEK,
-                    // RTL 8211E
-                    model: 0b010001,
-                    rev: 0b0101,
-                }) => true,
-                Some(PhyIdentifier {
-                    oui: OUI_LANTIQ,
-                    // Intel XWAY PHY11G (PEF 7071/PEF 7072) v1.5 / v1.6
-                    model: 0,
-                    ..
-                }) => true,
-                _ => false,
-            }
-        }).map(|addr| Phy { addr })
-    }
-
-    pub fn read_reg<PA, PR>(&self, pa: &mut PA) -> PR
-    where
-        PA: PhyAccess,
-        PR: PhyRegister + From<u16>,
-    {
-        pa.read_phy(self.addr, PR::addr()).into()
-    }
-
-    pub fn modify_reg<PA, PR, F>(&self, pa: &mut PA, mut f: F)
-    where
-        PA: PhyAccess,
-        PR: PhyRegister + From<u16> + Into<u16>,
-        F: FnMut(PR) -> PR,
-    {
-        let reg = pa.read_phy(self.addr, PR::addr()).into();
-        let reg = f(reg);
-        pa.write_phy(self.addr, PR::addr(), reg.into())
-    }
-
-    pub fn modify_control<PA, F>(&self, pa: &mut PA, f: F)
-    where
-        PA: PhyAccess,
-        F: FnMut(Control) -> Control,
-    {
-        self.modify_reg(pa, f)
-    }
-
-    pub fn get_control<PA: PhyAccess>(&self, pa: &mut PA) -> Control {
-        self.read_reg(pa)
-    }
-
-    pub fn get_status<PA: PhyAccess>(&self, pa: &mut PA) -> Status {
-        self.read_reg(pa)
-    }
-
-    pub fn get_link<PA: PhyAccess>(&self, pa: &mut PA) -> Option<Link> {
-        let status = self.get_status(pa);
-        if !status.link_status() {
-            None
-        } else if status.cap_1000base_t_extended_status() {
-            let phy_status: PSSR = self.read_reg(pa);
-            phy_status.get_link()
-        } else {
-            status.get_link()
-        }
-    }
-
-    pub fn reset<PA: PhyAccess>(&self, pa: &mut PA) {
-        self.modify_control(pa, |control|
-            control.set_reset(true)
-        );
-        while self.get_control(pa).reset() {}
-    }
-
-    pub fn restart_autoneg<PA: PhyAccess>(&self, pa: &mut PA) {
-        self.modify_control(pa, |control|
-            control.set_autoneg_enable(true)
-                .set_restart_autoneg(true)
-        );
-    }
-}
-
 pub trait PhyRegister {
     fn addr() -> u8;
 }
+
+#[cfg(not(feature = "target_kasli_soc"))]
+mod phy_impl {
+    use super::*;
+    use id::{identify_phy, PhyIdentifier};
+
+    #[derive(Clone)]
+    pub struct Phy {
+        pub addr: u8,
+    }
+
+    const OUI_MARVELL: u32 = 0x005043;
+    const OUI_REALTEK: u32 = 0x000732;
+    const OUI_LANTIQ : u32 = 0x355969;
+
+    impl Phy {
+        /// Probe all addresses on MDIO for a known PHY
+        pub fn find<PA: PhyAccess>(pa: &mut PA) -> Option<Phy> {
+            (1..32).find(|addr| {
+                match identify_phy(pa, *addr) {
+                    Some(PhyIdentifier {
+                        oui: OUI_MARVELL,
+                        // Marvell 88E1116R
+                        model: 36,
+                        ..
+                    }) => true,
+                    Some(PhyIdentifier {
+                        oui: OUI_MARVELL,
+                        // Marvell 88E1512
+                        model: 29,
+                        ..
+                    }) => true,
+                    Some(PhyIdentifier {
+                        oui: OUI_REALTEK,
+                        // RTL 8211E
+                        model: 0b010001,
+                        rev: 0b0101,
+                    }) => true,
+                    Some(PhyIdentifier {
+                        oui: OUI_LANTIQ,
+                        // Intel XWAY PHY11G (PEF 7071/PEF 7072) v1.5 / v1.6
+                        model: 0,
+                        ..
+                    }) => true,
+                    _ => false,
+                }
+            }).map(|addr| Phy { addr })
+        }
+
+        pub fn read_reg<PA, PR>(&self, pa: &mut PA) -> PR
+        where
+            PA: PhyAccess,
+            PR: PhyRegister + From<u16>,
+        {
+            pa.read_phy(self.addr, PR::addr()).into()
+        }
+
+        pub fn modify_reg<PA, PR, F>(&self, pa: &mut PA, mut f: F)
+        where
+            PA: PhyAccess,
+            PR: PhyRegister + From<u16> + Into<u16>,
+            F: FnMut(PR) -> PR,
+        {
+            let reg = pa.read_phy(self.addr, PR::addr()).into();
+            let reg = f(reg);
+            pa.write_phy(self.addr, PR::addr(), reg.into())
+        }
+
+        pub fn modify_control<PA, F>(&self, pa: &mut PA, f: F)
+        where
+            PA: PhyAccess,
+            F: FnMut(Control) -> Control,
+        {
+            self.modify_reg(pa, f)
+        }
+
+        pub fn get_control<PA: PhyAccess>(&self, pa: &mut PA) -> Control {
+            self.read_reg(pa)
+        }
+
+        pub fn get_status<PA: PhyAccess>(&self, pa: &mut PA) -> Status {
+            self.read_reg(pa)
+        }
+
+        pub fn get_link<PA: PhyAccess>(&self, pa: &mut PA) -> Option<Link> {
+            let status = self.get_status(pa);
+            if !status.link_status() {
+                None
+            } else if status.cap_1000base_t_extended_status() {
+                let phy_status: PSSR = self.read_reg(pa);
+                phy_status.get_link()
+            } else {
+                status.get_link()
+            }
+        }
+
+        pub fn reset<PA: PhyAccess>(&self, pa: &mut PA) {
+            self.modify_control(pa, |control|
+                control.set_reset(true)
+            );
+            while self.get_control(pa).reset() {}
+        }
+
+        pub fn restart_autoneg<PA: PhyAccess>(&self, pa: &mut PA) {
+            self.modify_control(pa, |control|
+                control.set_autoneg_enable(true)
+                    .set_restart_autoneg(true)
+            );
+        }
+    }
+}
+
+#[cfg(feature = "target_kasli_soc")]
+mod phy_impl {
+    use super::*;
+
+    #[derive(Clone)]
+    pub struct Phy {
+    }
+
+    impl Phy {
+        pub fn find<PA: PhyAccess>(_pa: &mut PA) -> Option<Phy> {
+            Some(Phy {})
+        }
+
+        pub fn get_link<PA: PhyAccess>(&self, _pa: &mut PA) -> Option<Link> {
+            Some(Link {
+                speed: LinkSpeed::S1000,
+                duplex: LinkDuplex::Full,
+            })
+        }
+
+        pub fn modify_control<PA, F>(&self, _pa: &mut PA, _f: F)
+        where
+            PA: PhyAccess,
+            F: FnMut(Control) -> Control,
+        {
+        }
+
+        pub fn reset<PA: PhyAccess>(&self, _pa: &mut PA) {
+        }
+
+        pub fn restart_autoneg<PA: PhyAccess>(&self, _pa: &mut PA) {
+        }
+    }
+}
+
+pub use phy_impl::*;