diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index b28ace2be1a31f7db6b380a154965ce1f4a33336..1e53df0ba08cdbdbf860e18134903200db2a4aca 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -173,7 +173,7 @@ config MMIOTRACE_HOOKS
 
 config MMIOTRACE
 	bool "Memory mapped IO tracing"
-	depends on DEBUG_KERNEL
+	depends on DEBUG_KERNEL && PCI
 	select TRACING
 	select MMIOTRACE_HOOKS
 	default y
@@ -181,7 +181,7 @@ config MMIOTRACE
 	  Mmiotrace traces Memory Mapped I/O access and is meant for
 	  debugging and reverse engineering. It is called from the ioremap
 	  implementation and works via page faults. Tracing is disabled by
-	  default and can be enabled run-time.
+	  default and can be enabled at run-time.
 
 	  See Documentation/tracers/mmiotrace.txt.
 	  If you are not helping to develop drivers, say N.