config: Add a CPU clock command-line option

This patch adds a 'cpu_clock' command-line option and uses the value
to assign clocks to components running at the CPU speed (L1 and L2
including the L2-bus). The configuration scripts are updated
accordingly.

The 'clock' option is left unchanged in this patch as it is still used
by a number of components. In follow-on patches the latter will be
disambiguated further.

1 files changed, 2 insertions, 2 deletions

diff --git a/configs/common/CacheConfig.py b/configs/common/CacheConfig.py
index 5dd564f0c..288a633ce 100644
--- a/configs/common/CacheConfig.py
+++ b/configs/common/CacheConfig.py
@@ -64,12 +64,12 @@ def config_cache(options, system):
         # are not connected using addTwoLevelCacheHierarchy. Use the
         # same clock as the CPUs, and set the L1-to-L2 bus width to 32
         # bytes (256 bits).
-        system.l2 = l2_cache_class(clock=options.clock,
+        system.l2 = l2_cache_class(clock=options.cpu_clock,
                                    size=options.l2_size,
                                    assoc=options.l2_assoc,
                                    block_size=options.cacheline_size)
 
-        system.tol2bus = CoherentBus(clock = options.clock, width = 32)
+        system.tol2bus = CoherentBus(clock = options.cpu_clock, width = 32)
         system.l2.cpu_side = system.tol2bus.master
         system.l2.mem_side = system.membus.slave