Blackfin arch: Initial patch to add earlyprintk support

This allows debugging of problems which happen eary in the kernel
boot process (after bootargs are parsed, but before serial subsystem
is fully initialized)

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 4d175c751246..a57c1f216b21 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -35,6 +35,7 @@ parameter is applicable:
         APIC    APIC support is enabled.
         APM     Advanced Power Management support is enabled.
         AX25    Appropriate AX.25 support is enabled.
+        BLACKFIN Blackfin architecture is enabled.
         DRM     Direct Rendering Management support is enabled.
         EDD     BIOS Enhanced Disk Drive Services (EDD) is enabled
         EFI     EFI Partitioning (GPT) is enabled
@@ -550,7 +551,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
         dtc3181e=       [HW,SCSI]
 
-        earlyprintk=    [X86-32,X86-64,SH]
+        earlyprintk=    [X86-32,X86-64,SH,BLACKFIN]
                         earlyprintk=vga
                         earlyprintk=serial[,ttySn[,baudrate]]