* Re: cfi probe for two different flash devices
[not found] <200310060645.BAA09508@lists.linuxppc.org>
@ 2003-10-06 17:10 ` Gary Thomas
2003-10-06 17:16 ` David Woodhouse
0 siblings, 1 reply; 2+ messages in thread
From: Gary Thomas @ 2003-10-06 17:10 UTC (permalink / raw)
To: j.murali; +Cc: linux-mtd, linuxppc embedded
On Mon, 2003-10-06 at 00:20, J.Murali wrote:
> hi all,
>
> i am working on a custom board(Redwood6) using IBM ppc 405. I am using
> the Montavista's kernel 2.4.17. We have one AMD flash of 4 MB and one
> Intel flash of 16 MB on our board. There are 4 mtd partitions are in AMD
> and Intel flash is used as storage space of 5 mtd partition.
>
> AMD partitions
> -----------------
> 1. Bootparams
> 2. Bootldr
> 3. kernel
> 4. Filesystem1
>
> Intel partition
> --------------
> 5. Filesystem2
>
> In the CFI probe, the kernel detects only one flash either AMD or INTEL
> (Which address we specify as window address). What i have to to do for
> cfi to detect both flash devices.
>
> Any suggestions are appreciated
>
This question would be best asked of the MTD folks (cc'd), but I think
you'll need a customized "map" function that recognizes these two FLASH
device types and creates the appropriate MTD sub-devices appropriately.
--
Gary Thomas <gary@mlbassoc.com>
MLB Associates
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: cfi probe for two different flash devices
2003-10-06 17:10 ` cfi probe for two different flash devices Gary Thomas
@ 2003-10-06 17:16 ` David Woodhouse
0 siblings, 0 replies; 2+ messages in thread
From: David Woodhouse @ 2003-10-06 17:16 UTC (permalink / raw)
To: Gary Thomas; +Cc: j.murali, linux-mtd, linuxppc embedded
On Mon, 2003-10-06 at 11:10 -0600, Gary Thomas wrote:
> This question would be best asked of the MTD folks (cc'd), but I think
> you'll need a customized "map" function that recognizes these two FLASH
> device types and creates the appropriate MTD sub-devices appropriately.
What Gary said.
If you poke around in drivers/mtd/maps you'll find useful examples of
such, including how to concatenate them together into one logical MTD
device and have a file system spanning them both, etc.
--
dwmw2
^ permalink raw reply [flat|nested] 2+ messages in thread
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2003-10-06 17:10 ` cfi probe for two different flash devices Gary Thomas
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