h1910 NAND

h1910 NAND

[joshua]

NAND flash seems to work on the iPAQ h1910. Things of note:

* h1910 has ALE and CLE muxed on the address lines, and chip select
connected to a real chip select. This means a few things, notably that we
can't cache IO_ADDR_R in a declared register variable any more the way I
have implemented it. It also means that chipselect in hwcontrol is a nop,
as the CPU will manage that for us.

* Not certain what type of ECC we should be using. Had to comment out the
WARNING: Not using ECC is not recommended! message (or something like
that) so that my dmesg wasn't flooded with those when I tried to read from
flash.

Code is in handhelds.org linux/kernel26 CVS.

Have fun,
/j

Re: h1910 NAND

[Thomas Gleixner]

On Friday 12 September 2003 14:06, joshua@dashnine.joshuawise.com wrote:
> NAND flash seems to work on the iPAQ h1910. Things of note:
>
> * Not certain what type of ECC we should be using. Had to comment out the
> WARNING: Not using ECC is not recommended! message (or something like
> that) so that my dmesg wasn't flooded with those when I tried to read from
> flash.

Use Software-ECC.

-- 
Thomas
________________________________________________________________________
linutronix - competence in embedded & realtime linux
http://www.linutronix.de
mail: tglx@linutronix.de

Re: h1910 NAND

[Joshua Wise]

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> Use Software-ECC.
Hrm, I vaguely remember seeing someplace that the chip had hardware ECC 
support. *shrug*

/j

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