From: Matt Fleming <matt.fleming@intel.com>
Date: Fri, 4 Oct 2013 08:36:56 +0000 (+0100)
Subject: x86/efi: Add EFI framebuffer earlyprintk support
X-Git-Tag: omap-for-v3.13/fixes-for-merge-window-take2~32^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=72548e836b0c4abbb652e791dee9c91203a9a4c6;p=pandora-kernel.git

x86/efi: Add EFI framebuffer earlyprintk support

It's incredibly difficult to diagnose early EFI boot issues without
special hardware because earlyprintk=vga doesn't work on EFI systems.

Add support for writing to the EFI framebuffer, via earlyprintk=efi,
which will actually give users a chance of providing debug output.

Cc: H. Peter Anvin <hpa@zytor.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Jones <pjones@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---

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