diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 6ffae2d..3ac9195 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -404,6 +404,14 @@
 	  this currently includes some models of iBook & Titanium
 	  PowerBook.
 
+config CPU_FREQ_PMAC64
+	bool "Support for some Apple G5s"
+	depends on CPU_FREQ && PMAC_SMU && PPC64
+	select CPU_FREQ_TABLE
+	help
+	  This adds support for frequency switching on Apple iMac G5,
+	  and some of the more recent desktop G5 machines as well.
+
 config PPC601_SYNC_FIX
 	bool "Workarounds for PPC601 bugs"
 	depends on 6xx && (PPC_PREP || PPC_PMAC)