Nand support on STM/i.MX (especially iMX23)

Nand support on STM/i.MX (especially iMX23)

[Gregory CLEMENT]

Hi,

I planned to add NAND support for iMX23 (which should work for iMX28). But this time before starting
writing this driver I would like to know if someone is already working on it.
If it is the case I would like to be involved in this development to bring my help.
If it is not the case, I considered to start from the driver supplied by freescale on thir 2.6.31 kernel.
Is it a good choice? Have you some advice to give me?

Thanks

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

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Re: Nand support on STM/i.MX (especially iMX23)

[Baruch Siach]

Hi Gregory,

On Thu, Dec 23, 2010 at 01:15:51PM +0100, Gregory CLEMENT wrote:
> I planned to add NAND support for iMX23 (which should work for iMX28). But 
> this time before starting
> writing this driver I would like to know if someone is already working on it.
> If it is the case I would like to be involved in this development to bring my help.
> If it is not the case, I considered to start from the driver supplied by freescale on thir 2.6.31 kernel.
> Is it a good choice? Have you some advice to give me?

In my opinion it should be easier to start with Freescale's 2.6.35 based 
kernel from branch imx_2.6.35_10.10.01 in 
http://opensource.freescale.com/pub/scm/imx/linux-2.6-imx.git, since it is 
closer to newer kernels.

baruch

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Re: Nand support on STM/i.MX (especially iMX23)

[Robert Schwebel]

On Thu, Dec 23, 2010 at 03:07:37PM +0200, Baruch Siach wrote:
> On Thu, Dec 23, 2010 at 01:15:51PM +0100, Gregory CLEMENT wrote:
> > I planned to add NAND support for iMX23 (which should work for
> > iMX28). But this time before starting writing this driver I would
> > like to know if someone is already working on it. If it is the case
> > I would like to be involved in this development to bring my help.
> > If it is not the case, I considered to start from the driver
> > supplied by freescale on thir 2.6.31 kernel. Is it a good choice?
> > Have you some advice to give me?
>
> In my opinion it should be easier to start with Freescale's 2.6.35
> based kernel from branch imx_2.6.35_10.10.01 in
> http://opensource.freescale.com/pub/scm/imx/linux-2.6-imx.git, since
> it is closer to newer kernels.

We are working on more mainline support for all kinds of peripherals for
the MX23 and MX28, but until now, nobody has started with NAND yet.

As far as I remember, the FSL code was really, really uggly, so it will
probably need an experienced look at the design. I suppose that there
will be not much activity over the holidays, so if you want to go ahead,
keep the list informed.

rsc
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