diff --git a/experiments/src/main.rs b/experiments/src/main.rs
index 32c91b5..6fa9b79 100644
--- a/experiments/src/main.rs
+++ b/experiments/src/main.rs
@@ -83,7 +83,7 @@ pub fn main_core0() {
         clocks.cpu_1x()
     );
 
-    let mut sd = libboard_zynq::sdio::SDIO::sdio0(true);
+    let sd = libboard_zynq::sdio::SDIO::sdio0(true);
     // only test SD card if it is inserted
     if sd.is_card_inserted() {
         let result = SdCard::from_sdio(sd);
diff --git a/libboard_zynq/src/sdio/adma.rs b/libboard_zynq/src/sdio/adma.rs
index 82b4bf3..bcdc424 100644
--- a/libboard_zynq/src/sdio/adma.rs
+++ b/libboard_zynq/src/sdio/adma.rs
@@ -37,29 +37,17 @@ impl Adma2Desc32 {
         }
     }
 
-    pub fn get_attribute(&mut self) -> u16 {
-        unsafe { core::ptr::read_volatile(&mut self.attribute as *mut u16) }
-    }
-
     pub fn set_length(&mut self, length: u16) {
         unsafe {
             core::ptr::write_volatile(&mut self.length as *mut u16, length);
         }
     }
 
-    pub fn get_length(&mut self) -> u16 {
-        unsafe { core::ptr::read_volatile(&mut self.length as *mut u16) }
-    }
-
     pub fn set_address(&mut self, address: u32) {
         unsafe {
             core::ptr::write_volatile(&mut self.address as *mut u32, address);
         }
     }
-
-    pub fn get_address(&mut self) -> u32 {
-        unsafe { core::ptr::read_volatile(&mut self.address as *mut u32) }
-    }
 }
 
 pub fn setup_adma2_descr32(sdio: &mut SDIO, blk_cnt: u32, buffer: &[u8]) {