diff --git a/libboard_zynq/src/clocks/mod.rs b/libboard_zynq/src/clocks/mod.rs
index eea0f11..fef755a 100644
--- a/libboard_zynq/src/clocks/mod.rs
+++ b/libboard_zynq/src/clocks/mod.rs
@@ -1,4 +1,4 @@
-use libregister::{RegisterR, RegisterW, RegisterRW};
+use libregister::{RegisterR, RegisterRW};
 use super::slcr;
 pub use slcr::ArmPllSource;
 
diff --git a/libboard_zynq/src/devc/mod.rs b/libboard_zynq/src/devc/mod.rs
index 39fc68e..ba4e98f 100644
--- a/libboard_zynq/src/devc/mod.rs
+++ b/libboard_zynq/src/devc/mod.rs
@@ -1,5 +1,3 @@
-use core::fmt;
-
 use libregister::*;
 mod regs;
 
diff --git a/libboard_zynq/src/devc/regs.rs b/libboard_zynq/src/devc/regs.rs
index b8a0f0e..15c1c42 100644
--- a/libboard_zynq/src/devc/regs.rs
+++ b/libboard_zynq/src/devc/regs.rs
@@ -1,5 +1,3 @@
-use volatile_register::{RO, WO, RW};
-
 use libregister::{
     register, register_at,
     register_bit, register_bits, register_bits_typed,
diff --git a/libboard_zynq/src/flash/mod.rs b/libboard_zynq/src/flash/mod.rs
index d3e34b3..e53d7d7 100644
--- a/libboard_zynq/src/flash/mod.rs
+++ b/libboard_zynq/src/flash/mod.rs
@@ -29,8 +29,6 @@ const INST_WRDI: u8 = 0x04;
 const INST_WREN: u8 = 0x06;
 /// Instruction: Program page
 const INST_PP: u8 = 0x02;
-/// Instruction: Sector Erase
-const INST_SE: u8 = 0xD8;
 /// Instruction: Erase 4K Block
 const INST_BE_4K: u8 = 0x20;
 
@@ -93,18 +91,6 @@ impl<MODE> Flash<MODE> {
         );
     }
 
-    fn enable_interrupts(&mut self) {
-        self.regs.intr_en.write(
-            regs::IntrEn::zeroed()
-                .rx_overflow(true)
-                .tx_fifo_not_full(true)
-                .tx_fifo_full(true)
-                .rx_fifo_not_empty(true)
-                .rx_fifo_full(true)
-                .tx_fifo_underflow(true)
-        );
-    }
-
     fn clear_rx_fifo(&self) {
         while self.regs.intr_status.read().rx_fifo_not_empty() {
             let _ = self.regs.rx_data.read();