Messages in this thread | | | Subject | [PATCH] sh: maple: Add support for VMU devices (v3) [0/3] | From | Adrian McMenamin <> | Date | Tue, 03 Feb 2009 14:31:26 +0000 |
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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).
This version tidies up some style issues raised with version 2.
Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> --- drivers/input/keyboard/maple_keyb.c | 40 +- drivers/mtd/maps/Kconfig | 12 +- drivers/mtd/maps/Makefile | 1 + drivers/mtd/maps/vmu-flash.c | 826 +++++++++++++++++++++++++++++++++++ drivers/sh/maple/maple.c | 463 ++++++++++---------- include/linux/maple.h | 62 ++- 6 files changed, 1139 insertions(+), 265 deletions(-)
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