[U-Boot-Users] NAND support [was: Port U-Boot to SBC-2410X]

Wolfgang Denk wd at denx.de
Thu Sep 1 01:05:54 CEST 2005

Dear Ladislav,

in message <20050831212122.GA32559 at orphique> you wrote:
> I promised you to send update over a weekend, but didn't tell you which
> one ;-). Although normaly I do not have problems explaining my boss why

I know how this goes. Been there before. Can't remember when for  the
first time :-(

> Patch against "testing-NAND" branch can be found here:
> ftp://ftp.linux-mips.org/pub/linux/mips/people/ladis/u-boot/u-boot-nand.diff

Can you please either send this by e-mail, or put it on a server that
actually works?

> It also contains support for new board NetStar (it is not meant to be
> included - I want to maintain it outside U-Boot, but I'd agree to put it
> into "testing-NAND" branch for reference), which shows sample

If I add it to "testing-NAND" (and it makes a lot of sense if this is
a working example) then it will go more or  less  automagically  into
the main tree as soon as I merge branches. Is this acceptable to you?

> implementation. Note that you have to define CONFIG_NEW_NAND_CODE to
> actually compile and use new code. Original <linux/mtd/nand.h> was moved
> to <linux/mtd/nand_old.h> and so has to be fixed all unconverted boards
> includes (I do not have energy to do it now and test if they still compiles).

We will have to go through this when switching the code base.

> Ideally old and new code should be able to coexist. Please let me know if you

But only one version shall be in the main branch at a time, i. e. one
day the new code will replace the old one, and then all  boards  will
need to be converted.

> experience any problems or if you want me to split patch into smaller
> chunks.

Will do when I can lay my hands on the patch; keep  getting  timeouts
only :-(

> (*) - needs discussion and improvements, it's not finished.

Thanks for providing a sound base for this discussion.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
One difference between a man and a machine is that a machine is quiet
when well oiled.

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