1 files changed, 5 insertions, 3 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 203f4a9d9efe..0fbde71a1297 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -847,6 +847,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
         earlyprintk=    [X86,SH,BLACKFIN,ARM]
                         earlyprintk=vga
+                        earlyprintk=efi
                         earlyprintk=xen
                         earlyprintk=serial[,ttySn[,baudrate]]
                         earlyprintk=serial[,0x...[,baudrate]]
@@ -860,7 +861,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         Append ",keep" to not disable it when the real console
                         takes over.
 
-                        Only vga or serial or usb debug port at a time.
+                        Only one of vga, efi, serial, or usb debug port can
+                        be used at a time.
 
                         Currently only ttyS0 and ttyS1 may be specified by
                         name.  Other I/O ports may be explicitly specified
@@ -874,8 +876,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         Interaction with the standard serial driver is not
                         very good.
 
-                        The VGA output is eventually overwritten by the real
-                        console.
+                        The VGA and EFI output is eventually overwritten by
+                        the real console.
 
                         The xen output can only be used by Xen PV guests.