diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 1fb729cafdcc02b976ef661316f55dc0b5683ede..0f006e01045d5239a79247007d22617d8e0f39a4 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -703,14 +703,14 @@
 			Documentation/kdump/kdump.txt for an example.
 
 	crashkernel=size[KMG],high
-			[KNL, x86_64] range could be above 4G. Allow kernel
+			[KNL, x86_64, arm64] range could be above 4G. Allow kernel
 			to allocate physical memory region from top, so could
 			be above 4G if system have more than 4G ram installed.
 			Otherwise memory region will be allocated below 4G, if
 			available.
 			It will be ignored if crashkernel=X is specified.
 	crashkernel=size[KMG],low
-			[KNL, x86_64] range under 4G. When crashkernel=X,high
+			[KNL, x86_64, arm64] range under 4G. When crashkernel=X,high
 			is passed, kernel could allocate physical memory region
 			above 4G, that cause second kernel crash on system
 			that require some amount of low memory, e.g. swiotlb