[ECOS] jffs2 filesystem with redboot

Gary Thomas gary@mlbassoc.com
Thu Jul 24 22:25:00 GMT 2008

Tiju Jacob wrote:
> Hi Gary,
> After redboot boots thriugh nor, i think we can change the boot to
> nand and restart/boot through nand. rit?
> Could u please forward me the archives where these were discussed? I
> tried searching but cud'nt find any.

As I said, the port you have knows nothing about NAND FLASH - you'll
have to add that support (not just "flick a switch")

The discussions were about NAND+JFFS2 in general - AFAIK, there's never
been any discussion on this list about the mx27 DragonBall boards, on
any topic.

> On Thu, Jul 24, 2008 at 10:41 PM, Gary Thomas <gary@mlbassoc.com> wrote:
>> Tiju Jacob wrote:
>>> It is a mx27 ADS based board. The redboot/eCos sources were given by
>>> Freescale.
>> Please keep replies on the eCos list so that all may benefit.
>> AFAIK, that port only supports the NOR FLASH on the board.  If you want
>> to add NAND, you'll need to write the drivers, etc, yourself.  There
>> has been much discussion on this topic of late; check the archives.
>>> On Thu, Jul 24, 2008 at 8:56 PM, Gary Thomas <gary@mlbassoc.com> wrote:
>>>> Tiju Jacob wrote:
>>>>> Hi all,
>>>>> I have a freescale based development board. I am trying to boot from
>>>>> nand using redboot. My queries are:
>>>>> 1. How would I enable the nand flash in redboot?
>>>>> 2. How to integrate jffs2 filesystem with redboot?
>>>>> 3. If integrated will I be able to write, read, erase files in the nand
>>>>> flash?
>>>>> 4. How could I enable the support for these functionalities?
>>>> What kind of Freescale development board is it?
>>>> Where did you get the RedBoot/eCos sources (if not from the public CVS
>>>> tree)?

Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world

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