diff --git a/src/dev/arm/RealView.py b/src/dev/arm/RealView.py
index 62aeceb..9672671 100644
--- a/src/dev/arm/RealView.py
+++ b/src/dev/arm/RealView.py
@@ -375,6 +375,7 @@
        # (gic, a9scu)
        bridge.ranges = [AddrRange(0x2F000000, size='16MB'),
                         AddrRange(0x30000000, size='256MB'),
+                        AddrRange(0x40000000, size='512MB'),
                         AddrRange(0x18000000, size='64MB'),
                         AddrRange(0x1C000000, size='64MB')]