diff --git a/generators/chipyard/src/main/scala/config/RadianceConfigs.scala b/generators/chipyard/src/main/scala/config/RadianceConfigs.scala
index 3dee4f73..151ab57c 100644
--- a/generators/chipyard/src/main/scala/config/RadianceConfigs.scala
+++ b/generators/chipyard/src/main/scala/config/RadianceConfigs.scala
@@ -100,7 +100,7 @@ class RadianceBlackwellClusterConfig extends Config(
 class RadianceClusterConfig extends Config(
   // important to keep gemmini tile before RadianceCores to ensure radiance tile id is 0-indexed
   new radiance.subsystem.WithRadianceGemmini(location = InCluster(0), dim = 8, accSizeInKB = 16, tileSize = 8) ++
-  new radiance.subsystem.WithRadianceCores(4, location = InCluster(0), tensorCoreFP16 = false, tensorCoreDecoupled = false, useVxCache = false) ++
+  new radiance.subsystem.WithRadianceCores(1, location = InCluster(0), tensorCoreFP16 = false, tensorCoreDecoupled = false, useVxCache = false) ++
   // new radiance.subsystem.WithRadianceFrameBuffer(x"ff018000", 16, 0x8000, x"ff011000", "fb0") ++
   new radiance.subsystem.WithRadianceSharedMem(address = x"ff000000", size = 256 << 10/*KBytes*/, numBanks = 8, numWords = 8,
                                                // memType = radiance.subsystem.TwoReadOneWrite,
diff --git a/generators/radiance b/generators/radiance
index e8f5bab1..2d6bf7dd 160000
--- a/generators/radiance
+++ b/generators/radiance
@@ -1 +1 @@
-Subproject commit e8f5bab17e6d61c05b48bc5f0ac2bce6b3bf64af
+Subproject commit 2d6bf7dd45b64fe9a934f76d4091f91597c5924a