From efa2ca73a7bc1a8f8e66bcfad33391746819ffe6 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Wed, 5 Oct 2011 15:22:34 +0200 Subject: mtd: Add DiskOnChip G3 support Add support for DiskOnChip G3 chips. The support is quite limited yet : - no flash writes/erases are implemented - ECC fixes are not implemented - powerdown is not implemented - IPL handling is not yet done On the brighter side, the chip reading does work. Signed-off-by: Robert Jarzmik --- drivers/mtd/devices/Kconfig | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/mtd/devices/Kconfig') diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index 35081ce77fb..6d91a1f049c 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -249,6 +249,16 @@ config MTD_DOC2001PLUS under "NAND Flash Device Drivers" (currently that driver does not support all Millennium Plus devices). +config MTD_DOCG3 + tristate "M-Systems Disk-On-Chip G3" + ---help--- + This provides an MTD device driver for the M-Systems DiskOnChip + G3 devices. + + The driver provides access to G3 DiskOnChip, distributed by + M-Systems and now Sandisk. The support is very experimental, + and doesn't give access to any write operations. + config MTD_DOCPROBE tristate select MTD_DOCECC -- cgit v1.2.3-70-g09d2 From 6be55f79a216ccb9f364476b12e5b151a5f6bdb6 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Tue, 25 Oct 2011 11:00:07 +0200 Subject: mtd: clean up usage of MTD_DOCPROBE_ADDRESS Depending on whether MTD_DOCPROBE_ADVANCED is set or not, MTD_DOCPROBE_ADDRESS will default to either 0x0000 or 0. That should lead to (basically) identical code in docprobe.c. The current two defaults should be merged. And, while we're at it, if MTD_DOCPROBE is set MTD_DOCPROBE_ADDRESS will always be set. (MTD_DOCPROBE_ADDRESS depends on MTD_DOCPROBE and it has a default value.) So the check whether CONFIG_MTD_DOCPROBE_ADDRESS is defined is unnecessary and should be dropped. Signed-off-by: Paul Bolle Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/Kconfig | 3 +-- drivers/mtd/devices/docprobe.c | 5 ----- 2 files changed, 1 insertion(+), 7 deletions(-) (limited to 'drivers/mtd/devices/Kconfig') diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index 6d91a1f049c..283d887f782 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -278,8 +278,7 @@ config MTD_DOCPROBE_ADVANCED config MTD_DOCPROBE_ADDRESS hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED depends on MTD_DOCPROBE - default "0x0000" if MTD_DOCPROBE_ADVANCED - default "0" if !MTD_DOCPROBE_ADVANCED + default "0x0" ---help--- By default, the probe for DiskOnChip devices will look for a DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000. diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c index d374603493a..45116bb3029 100644 --- a/drivers/mtd/devices/docprobe.c +++ b/drivers/mtd/devices/docprobe.c @@ -50,11 +50,6 @@ #include #include -/* Where to look for the devices? */ -#ifndef CONFIG_MTD_DOCPROBE_ADDRESS -#define CONFIG_MTD_DOCPROBE_ADDRESS 0 -#endif - static unsigned long doc_config_location = CONFIG_MTD_DOCPROBE_ADDRESS; module_param(doc_config_location, ulong, 0); -- cgit v1.2.3-70-g09d2