From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mk-filter-1-a-1.mail.uk.tiscali.com ([212.74.100.52]) by bombadil.infradead.org with esmtp (Exim 4.69 #1 (Red Hat Linux)) id 1LU8oq-0001TG-8x for linux-mtd@lists.infradead.org; Tue, 03 Feb 2009 00:07:14 +0000 Subject: [PATCH] sh: maple: Add support for VMU devices (v2) [0/3] From: Adrian McMenamin To: greg KH , Paul Mundt , Dmitry Torokhov , dwmw2 Content-Type: text/plain Date: Tue, 03 Feb 2009 00:06:09 +0000 Message-Id: <1233619569.13918.12.camel@localhost.localdomain> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Cc: linux-input , MTD , LKML , linux-sh List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 ---