diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index be3bde51b56..73fa52c0df2 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1513,7 +1513,9 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	noclflush	[BUGS=X86] Don't use the CLFLUSH instruction
 
-	nohlt		[BUGS=ARM,SH]
+	nohlt		[BUGS=ARM,SH] Tells the kernel that the sleep(SH) or
+			wfi(ARM) instruction doesn't work correctly and not to
+			use it. This is also useful when using JTAG debugger.
 
 	no-hlt		[BUGS=X86-32] Tells the kernel that the hlt
 			instruction doesn't work correctly and not to