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-rw-r--r--configs/example/memtest.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/configs/example/memtest.py b/configs/example/memtest.py
index 47853ffab..c9149865a 100644
--- a/configs/example/memtest.py
+++ b/configs/example/memtest.py
@@ -52,6 +52,8 @@ parser.add_option("-n", "--numtesters", type="int", default=8,
parser.add_option("-t", "--treespec", type="string",
help="Colon-separated multilevel tree specification")
+parser.add_option("--force-bus", action="store_true",
+ help="Use bus between levels even with single cache")
parser.add_option("-f", "--functional", type="int", default=0,
metavar="PCT",
@@ -129,7 +131,7 @@ system = System(funcmem = PhysicalMemory(),
def make_level(spec, prototypes, attach_obj, attach_port):
fanout = spec[0]
parent = attach_obj # use attach obj as config parent too
- if fanout > 1:
+ if fanout > 1 or options.force_bus:
new_bus = Bus(clock="500MHz", width=16)
new_bus.port = getattr(attach_obj, attach_port)
parent.cpu_side_bus = new_bus