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Commit 570469f3 authored by Mike Dunn's avatar Mike Dunn Committed by David Woodhouse
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mtd: nand: add support for diskonchip G4 nand flash device 



This patch adds a driver for the M-Sys / Sandisk diskonchip G4 nand flash found
in various smartphones and PDAs, among them the Palm Treo680, HTC Prophet and
Wizard, Toshiba Portege G900, Asus P526, and O2 XDA Zinc.  It was tested on the
Treo 680, but should work generically.

Since v3, this patch adds power management functions, a scan of the factory bad
block table during initialization, several fixes, and more extensive testing.
Also, the platform data header file, which only contained partitioning
information, was removed.  Command-line partitioning can be used, at least until
an mtd parser is written for the saftl format with which these chips are
shipped.

Signed-off-by: default avatarMike Dunn <mikedunn@newsguy.com>
Reviewed-by: default avatarRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 58edc904

drivers/mtd/nand/Kconfig

+20 −0
Original line number Diff line number Diff line
@@ -313,6 +313,26 @@ config MTD_NAND_DISKONCHIP_BBTWRITE 
	  load time (assuming you build diskonchip as a module) with the module

	  parameter "inftl_bbt_write=1".



config MTD_NAND_DOCG4

	tristate "Support for DiskOnChip G4 (EXPERIMENTAL)"

	depends on EXPERIMENTAL

	select BCH

	select BITREVERSE

	help

	  Support for diskonchip G4 nand flash, found in various smartphones and

	  PDAs, among them the Palm Treo680, HTC Prophet and Wizard, Toshiba

	  Portege G900, Asus P526, and O2 XDA Zinc.



	  With this driver you will be able to use UBI and create a ubifs on the

	  device, so you may wish to consider enabling UBI and UBIFS as well.



	  These devices ship with the Mys/Sandisk SAFTL formatting, for which

	  there is currently no mtd parser, so you may want to use command line

	  partitioning to segregate write-protected blocks. On the Treo680, the

	  first five erase blocks (256KiB each) are write-protected, followed

	  by the block containing the saftl partition table.  This is probably

	  typical.



config MTD_NAND_SHARPSL

	tristate "Support for NAND Flash on Sharp SL Series (C7xx + others)"

	depends on ARCH_PXA

drivers/mtd/nand/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ obj-$(CONFIG_MTD_NAND_PPCHAMELEONEVB) += ppchameleonevb.o 
obj-$(CONFIG_MTD_NAND_S3C2410)		+= s3c2410.o

obj-$(CONFIG_MTD_NAND_DAVINCI)		+= davinci_nand.o

obj-$(CONFIG_MTD_NAND_DISKONCHIP)	+= diskonchip.o

obj-$(CONFIG_MTD_NAND_DOCG4)		+= docg4.o

obj-$(CONFIG_MTD_NAND_FSMC)		+= fsmc_nand.o

obj-$(CONFIG_MTD_NAND_H1900)		+= h1910.o

obj-$(CONFIG_MTD_NAND_RTC_FROM4)	+= rtc_from4.o

drivers/mtd/nand/docg4.c

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