Move example/utilities to generator directory

common.mk

@@ -8,8 +8,8 @@ SHELL=/bin/bash
 #########################################################################################
 lookup_scala_srcs = $(shell find -L $(1)/ -iname "*.scala" 2> /dev/null)
 
-PACKAGES=rocket-chip testchipip boom hwacha sifive-blocks
-SCALA_SOURCES=$(foreach pkg,$(PACKAGES),$(call lookup_scala_srcs,$(base_dir)/generators/$(pkg)/src/main/scala)) $(call lookup_scala_srcs,$(base_dir)/example/src/main/scala) $(call lookup_scala_srcs,$(base_dir)/utilities/src/main/scala)
+PACKAGES=rocket-chip testchipip boom hwacha sifive-blocks utilities example
+SCALA_SOURCES=$(foreach pkg,$(PACKAGES),$(call lookup_scala_srcs,$(base_dir)/generators/$(pkg)/src/main/scala))
 
 #########################################################################################
 # rocket and testchipip classes

generators/example/src/main/scala/Configs.scala

@@ -2,7 +2,7 @@ package example
 
 import chisel3._
 import freechips.rocketchip.config.{Config}
-import freechips.rocketchip.subsystem.{WithRoccExample, WithNMemoryChannels, WithNBigCores, WithRV32}
+import freechips.rocketchip.subsystem.{WithRoccExample, WithNMemoryChannels, WithNBigCores, WithRV32, WithExtMemSize}
 import testchipip._
 
 // --------------
@@ -56,6 +56,10 @@ class GPIORocketConfig extends Config(
   new WithGPIORocketTop ++
   new BaseRocketConfig)
 
+class GB1MemoryConfig extends Config(
+  new WithExtMemSize((1<<30) * 1L) ++
+  new DefaultRocketConfig)
+
 // ------------
 // BOOM Configs
 // ------------