Changed mutability

experiments/src/main.rs

@@ -93,14 +93,11 @@ pub fn main_core0() {
         };
         const SIZE: usize = 512 * 2 + 1;
         let mut sd_card = result.unwrap();
+        {
+            let buffer: [u8; SIZE] = [5; SIZE];
+            sd_card.write_block(0x0, 2, &buffer).unwrap();
+        }
         let mut buffer: [u8; SIZE] = [0; SIZE];
-        for i in 0..buffer.len() {
-            buffer[i] = (i % 16) as u8;
-        }
-        sd_card.write_block(0x0, 2, &mut buffer).unwrap();
-        for i in 0..buffer.len() {
-            buffer[i] = 0;
-        }
         sd_card.read_block(0x1, 2, &mut buffer[1..]).unwrap();
         for i in 0..buffer.len() {
             info!("buffer[{}] = {}", i, buffer[i]);

libboard_zynq/src/sdio/adma.rs

@@ -62,7 +62,7 @@ impl Adma2Desc32 {
     }
 }
 
-pub fn setup_adma2_descr32(sdio: &mut SDIO, blk_cnt: u32, buffer: &mut [u8]) {
+pub fn setup_adma2_descr32(sdio: &mut SDIO, blk_cnt: u32, buffer: &[u8]) {
     let descr_table = unsafe { &mut ADMA2_DESCR32_TABLE };
     let blk_size = sdio
         .regs

libboard_zynq/src/sdio/sd_card.rs

@@ -241,7 +241,7 @@ impl SdCard {
         &mut self,
         address: u32,
         block_cnt: u16,
-        buffer: &mut [u8],
+        buffer: &[u8],
     ) -> Result<(), CmdTransferError> {
         assert!(buffer.len() >= (block_cnt as usize) * 512);
         // set block size if not set already

libcortex_a9/src/cache.rs

@@ -112,7 +112,7 @@ pub fn dcci<T>(object: &T) {
     }
 }
 
-pub fn dcci_slice<T>(slice: &mut [T]) {
+pub fn dcci_slice<T>(slice: &[T]) {
     for addr in slice_cache_line_addrs(slice) {
         dccimvac(addr);
     }