M-Systems DiskOnChip driver update.

- Add Millennium Plus support.
- Add advanced probe configuration options
- Fix abuse of buffer space in scan for Media Header.

drivers/mtd/devices/Kconfig

 # drivers/mtd/maps/Kconfig
-# $Id: Kconfig,v 1.10 2004/07/15 00:34:49 dwmw2 Exp $
+# $Id: Kconfig,v 1.12 2004/08/10 13:12:18 dwmw2 Exp $
 
 menu "Self-contained MTD device drivers"
 	depends on MTD!=n
@@ -128,7 +128,7 @@ config MTD_BLKMTD
 comment "Disk-On-Chip Device Drivers"
 
 config MTD_DOC2000
-	tristate "M-Systems Disk-On-Chip 2000 and Millennium"
+	tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
 	depends on MTD
 	---help---
 	  This provides an MTD device driver for the M-Systems DiskOnChip
@@ -144,8 +144,12 @@ config MTD_DOC2000
 	  emulate a block device by using a kind of file system on the flash
 	  chips.
 
+	  NOTE: This driver is deprecated and will probably be removed soon.
+	  Please try the new DiskOnChip driver under "NAND Flash Device
+	  Drivers".
+
 config MTD_DOC2001
-	tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (see help)"
+	tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
 	depends on MTD
 	---help---
 	  This provides an alternative MTD device driver for the M-Systems 
@@ -160,6 +164,10 @@ config MTD_DOC2001
 	  emulate a block device by using a kind of file system on the flash
 	  chips.
 
+	  NOTE: This driver is deprecated and will probably be removed soon.
+	  Please try the new DiskOnChip driver under "NAND Flash Device
+	  Drivers".
+
 config MTD_DOC2001PLUS
 	tristate "M-Systems Disk-On-Chip Millennium Plus"
 	depends on MTD
@@ -172,19 +180,23 @@ config MTD_DOC2001PLUS
 	  to emulate a block device by using a kind of file system on the 
 	  flash chips.
 
+	  NOTE: This driver will soon be replaced by the new DiskOnChip driver
+	  under "NAND Flash Device Drivers" (currently that driver does not
+	  support all Millennium Plus devices).
+
 config MTD_DOCPROBE
 	tristate
 	default m if MTD_DOC2001!=y && MTD_DOC2000!=y && MTD_DOC2001PLUS!=y && (MTD_DOC2001=m || MTD_DOC2000=m || MTD_DOC2001PLUS=m)
 	default y if MTD_DOC2001=y || MTD_DOC2000=y || MTD_DOC2001PLUS=y
 	help
-	  This isn't a real config option, it's derived.
+	  This isn't a real config option; it's derived.
 
 config MTD_DOCECC
 	tristate
 	default m if MTD_DOCPROBE!=y && MTD_NAND_DISKONCHIP!=y && (MTD_DOCPROBE=m || MTD_NAND_DISKONCHIP=m)
 	default y if MTD_DOCPROBE=y || MTD_NAND_DISKONCHIP=y
 	help
-	  This isn't a real config option, it's derived.
+	  This isn't a real config option; it's derived.
 
 config MTD_DOCPROBE_ADVANCED
 	bool "Advanced detection options for DiskOnChip"

drivers/mtd/nand/Kconfig

 # drivers/mtd/nand/Kconfig
-# $Id: Kconfig,v 1.14 2004/07/13 00:14:35 dbrown Exp $
+# $Id: Kconfig,v 1.17 2004/08/10 14:24:07 dwmw2 Exp $
 
 menu "NAND Flash Device Drivers"
 	depends on MTD!=n
@@ -81,15 +81,51 @@ config MTD_NAND_PPCHAMELEONEVB
 	  This enables the NAND flash driver on the PPChameleon EVB Board.	
 
 config MTD_NAND_DISKONCHIP
-	tristate "DiskOnChip 2000 and Millennium (NAND reimplementation) (EXPERIMENTAL)"
+	tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)"
 	depends on MTD_NAND && EXPERIMENTAL
 	help
-	  This is a reimplementation of M-Systems DiskOnChip 2000 and
-	  Millennium as a standard NAND device driver, as opposed to the
-	  earlier self-contained MTD device drivers.
+	  This is a reimplementation of M-Systems DiskOnChip 2000,
+	  Millennium and Millennium Plus as a standard NAND device driver,
+	  as opposed to the earlier self-contained MTD device drivers.
 	  This should enable, among other things, proper JFFS2 operation on
 	  these devices.
 
+config MTD_NAND_DISKONCHIP_PROBE_ADVANCED
+        bool "Advanced detection options for DiskOnChip"
+        depends on MTD_NAND_DISKONCHIP
+        help
+          This option allows you to specify nonstandard address at which to
+          probe for a DiskOnChip, or to change the detection options.  You
+          are unlikely to need any of this unless you are using LinuxBIOS.
+          Say 'N'.
+
+config MTD_NAND_DISKONCHIP_PROBE_ADDRESS
+        hex "Physical address of DiskOnChip" if MTD_NAND_DISKONCHIP_PROBE_ADVANCED
+        depends on MTD_NAND_DISKONCHIP
+        default "0"
+        ---help---
+        By default, the probe for DiskOnChip devices will look for a
+        DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
+        This option allows you to specify a single address at which to probe
+        for the device, which is useful if you have other devices in that
+        range which get upset when they are probed.
+
+        (Note that on PowerPC, the normal probe will only check at
+        0xE4000000.)
+
+        Normally, you should leave this set to zero, to allow the probe at
+        the normal addresses.
+
+config MTD_NAND_DISKONCHIP_PROBE_HIGH
+        bool "Probe high addresses"
+        depends on MTD_NAND_DISKONCHIP_PROBE_ADVANCED
+        help
+          By default, the probe for DiskOnChip devices will look for a
+          DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
+          This option changes to make it probe between 0xFFFC8000 and
+          0xFFFEE000.  Unless you are using LinuxBIOS, this is unlikely to be
+          useful to you.  Say 'N'.
+
 config MTD_NAND_DISKONCHIP_BBTWRITE
 	bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP"
 	depends on MTD_NAND_DISKONCHIP