From: Anup Patel <anup.patel@linaro.org>
Date: Fri, 1 Mar 2013 08:41:47 +0000 (+0000)
Subject: arm64: add support for 8250/16550 earlyprintk
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~100^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e53f2f4b570d85c7208dfc97de54db1296b88207;p=pandora-kernel.git

arm64: add support for 8250/16550 earlyprintk

This patch adds support for using earlyprintk with 8250/16550 UART
ports. The 8250/16550 UART can either have 8-bit or 32-bit aligned
registers which is HW vendor dependent.

Kernel args for 8-bit aligned regs: earlyprintk=uart8250-8bit,<phys_address>

Kernel args for 32-bit aligned regs: earlyprintk=uart8250-32bit,<phys_address>

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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