zynq::flash: flush after instruction

2019-12-07 02:48:55 +01:00 · 2019-12-07 02:48:55 +01:00 · f3676c945a
parent 1e465250f5
commit f3676c945a
1 changed files with 4 additions and 0 deletions
--- a/src/zynq/flash/mod.rs
+++ b/src/zynq/flash/mod.rs
@ -366,6 +366,10 @@ impl<'a, Args: Iterator<Item = u32>> Transfer<'a, Args> {
        unsafe {
            flash.regs.txd1.write(inst_code.into());
        }
+        flash.regs.config.modify(|_, w| w.man_start_com(true));
+        // Flush after `txd1` access
+        while !flash.regs.intr_status.read().tx_fifo_not_full() {}
+
        while !flash.regs.intr_status.read().tx_fifo_full() {
            let arg = args.next().unwrap_or(0);
            unsafe {