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From: Brent Roberts <randd@globalopensource.net>
To: MTD list <linux-mtd@lists.infradead.org>
Date: Fri, 5 Aug 2005 16:37:33 -0700
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Subject: kernel for DOC 2000 192 MB with 5.1.2 firmware
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Hello all.

Which kernel version will support the DiskOnChip 2000 size 192 MB with 5.1.2 
firmware?  I have not had success doing the following:

Using kernel 2.6.3 with the following relevant configuration:

#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y

#
# User Modules And Translation Layers
#
CONFIG_MTD_CHAR=y
CONFIG_NFTL=y
CONFIG_NFTL_RW=y

#
# Disk-On-Chip Device Drivers
#
CONFIG_MTD_DOC2000=y
CONFIG_MTD_DOCPROBE=y
CONFIG_MTD_DOCPROBE_ADDRESS=0

#
# NAND Flash Device Drivers
#
CONFIG_MTD_NAND_IDS=y

and kernel 2.6.8 with the following relevant configuration:

#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y

#
# User Modules And Translation Layers
#
CONFIG_MTD_CHAR=y
CONFIG_NFTL=y
CONFIG_NFTL_RW=y

#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y

#
# Disk-On-Chip Device Drivers
#
CONFIG_MTD_DOCECC=y

#
# NAND Flash Device Drivers
#
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_IDS=y
CONFIG_MTD_NAND_DISKONCHIP=y
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0

In each case I boot to DOS and issue the following commands using version 5.x 
of DOC tools:

To save the BBT:
dformat /win:d000 /noformat /log:docbbt.txt

To install GRUB and format with NFTL (where GRUB_F~1 is grub_firmware, I 
intend to boot from this DOC):

dformat /win:d000 /bdfk0:GRUB_F~1

Then I boot to linux:

fdisk /dev/nftla

This command fails: "fdisk cannot open /dev/nftla".  

The above commands and grub_firmware worked fine with a 32 MB DOC 2000 having 
4.2 firmware on the 2.6.3 kernel i described above.


I have read that linux prefers the 4.2 firmware, however, attempts to change 
from 5.1.2 to 4.2 have been unsuccessful using M-Systems DOC tools under DOS.

Thanks in advance!

-Brent Roberts