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

DISCUSSION Gregory CLEMENT 3 participants 3 messages Dec 23, 2010

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#0 lore raw

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

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

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#1 lore raw

Hi Gregory,

Quoted 6 lines · Gregory CLEMENT

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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                                                     ~. .~   Tk Open Systems
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#2 lore raw
Quoted 9 lines · Baruch Siach
Quoted 7 lines · Gregory CLEMENT

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?

Quoted 4 lines

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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