diff --git a/libboard_zynq/src/flash/mod.rs b/libboard_zynq/src/flash/mod.rs
index 6c1ccbf..12bb9dc 100644
--- a/libboard_zynq/src/flash/mod.rs
+++ b/libboard_zynq/src/flash/mod.rs
@@ -293,6 +293,7 @@ impl Flash<()> {
             .mode_en(true)
             // 2 devices
             .two_mem(true)
+            .sep_bus(true)
             .u_page(false)
             // Linear Addressing Mode
             .lq_mode(true)