Hi,
Unless I have missed the point about what you are doing I don't think
you can use JFFS2 (or YAFFS2) on SD cards. This is because the FLASH is
made to look like a block device to the kernel. This allows you to use
other file systems such as VFAT/FAT or EXT3/EXT2, the kernel treats it
in the same way as any other 'disk' device. The same is true for USB
FLASH devices.
To use JFFS2/YAFFS2 the FLASH needs to appear in the processor memory
map as it would do when FLASH devices are mounted onto the board (for
example to 2G of NAND FLASH on a DM355).
Regards
Phil Q
Piyush Gangadhar Jadhav wrote:
Thanks Amol.
When I searched on net for the file system on flash drive, I came to know about
JFFS2
Has anybody used it? Hows its performance ?
Are there any issues with using JFFS2 with DM6446 platform ?
I want to perform heavy write/erase operations on flash.
Regards,
Piyush Jadhav
Piyush Jadhav| Engineer| MindTree Limited |
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________________________________________
From: Amol Lad [[email protected]]
Sent: Thursday, January 01, 2009 10:20 AM
To: DaVinci; Piyush Gangadhar Jadhav
Subject: Re: SD Flash drive File system
EXT3 will be more robust. FAT32/16 gives better performance with current
davinci SD drivers
--- On Wed, 12/31/08, Piyush Gangadhar Jadhav <[email protected]>
wrote:
From: Piyush Gangadhar Jadhav <[email protected]>
Subject: SD Flash drive File system
To: "DaVinci" <[email protected]>
Date: Wednesday, December 31, 2008, 3:24 AM
Hi all,
I am using SanDisk iNAND SD Flash drive interfaced with
DM6446. I want to use flash drive to store some data
files.Files will be written by DM6446. Which file system
should I use on Flash drive for efficient access and good
performance??
Regards,
Piyush Jadhav
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