nand flash's size overflow

nand flash's size overflow

[marco.qu]

Hi,all
  I'm using two 4G Bbyte nand flash chip (totally 8GB) under kernel 2.6.24.3, but the size and offset int the mtd and chip structures are int type(32 bit), so my flash's size if overflow. is there an official way to solve this problem?

Thanks!!

                                                                                                       marco
                                                                                                            2007-5-5

Re: nand flash's size overflow

[Josh Boyer]

On Mon, 5 May 2008 08:55:06 +0800
"marco.qu" <szlinux@21cn.com> wrote:

> Hi,all
>    is there an official way to solve this problem?

Provide patches to convert the MTD subsystem to overcome the limit of
using a 32bit variable to store size/offset in a sane manner.

This is getting asked often enough that it should be an FAQ.

josh

Re: nand flash's size overflow

[Bruce_Leonard]

> > Hi,all
> >    is there an official way to solve this problem?
> 
> Provide patches to convert the MTD subsystem to overcome the limit of
> using a 32bit variable to store size/offset in a sane manner.
> 
> This is getting asked often enough that it should be an FAQ.
> 
> josh
> 

Josh,

I was the first one to raise this issue a couple of months ago, and 
fortunately I've finally convinced my company that all the hack jobs we 
kept coming up with to avoid fixing this were a waste of time.  Once I 
wrap up some work I've got in progress I'm going to start working on a 
solution.  Hopefully get started in about a week.  Stand by for questions 
;-).

Bruce