linux-kernel - [PATCH] sh: maple: Add support for VMU devices (v2) [0/3]

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Date:	Tue, 03 Feb 2009 00:06:09 +0000
From:	Adrian McMenamin <adrian@...golddream.dyndns.info>
To:	greg KH <greg@...ah.com>, Paul Mundt <lethal@...ux-sh.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	dwmw2 <dwmw2@...radead.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	MTD <linux-mtd@...ts.infradead.org>,
	linux-sh <linux-sh@...r.kernel.org>,
	linux-input <linux-input@...r.kernel.org>
Subject: [PATCH] sh: maple: Add support for VMU devices (v2) [0/3]

This series of patches adds support for the Dreamcast Visual Memory
Unit, reworking the maple bus code to ensure it supports asynchronous
reads and writes. A consequential amendment to the keyboard driver is
also included.

The VMU is a 'smart' flash chip where access is controlled by a
microcontroller so that, for instance, flash erases appear to be
transparent to the end user. The VMU does, however, show typical
flash-type behaviour (eg phased writes) and the MTD layer and the chip
work well together (eg in the way they handle apparent hotplug events
during a block write).

Signed-off-by: Adrian McMenamin <adrian@...en.demon.co.uk>
---

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