From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Wed, 22 Feb 2012 20:58:03 +0000 (+0100)
Subject: ARM: 7338/1: add support for early console output via semihosting
X-Git-Tag: v3.4-rc1~36^2~1^3~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9b5a146a43db3733c731d47022f4f5259e6b31e6;p=pandora-kernel.git

ARM: 7338/1: add support for early console output via semihosting

This is a very simple method for code running in an emulator, or under
the supervision of a debugger, to use I/O facilities on the controlling
host.

Tested with OpenOCD, and ARM's Fast Models.

Details on semihosting can be found in chapter 8 of
DUI0203I_rvct_developer_guide.pdf from ARM Ltd.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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