experiments: setup_l2cache(), add bandwidth tester

experiments/src/main.rs

@@ -15,6 +15,7 @@ use libboard_zynq::{
     clocks::source::{ArmPll, ClockSource, IoPll},
     clocks::Clocks,
     print, println,
+    setup_l2cache,
     sdio::sd_card::SdCard,
     smoltcp::{
         iface::{EthernetInterfaceBuilder, NeighborCache, Routes},
@@ -82,6 +83,8 @@ pub fn main_core0() {
         clocks.cpu_2x(),
         clocks.cpu_1x()
     );
+    info!("Setup L2Cache");
+    setup_l2cache();
 
     // commented out due to OCM full
     // let sd = libboard_zynq::sdio::SDIO::sdio0(true);