[U-Boot] omap4460 nand booting ?

Abraham Varricatt abraham.varricatt at googlemail.com
Sat Jan 11 02:35:15 CET 2014


On Sat, Jan 11, 2014 at 3:45 AM, Gupta, Pekon <pekon at ti.com> wrote:
>
> >From: abraham.varricatt at vvdntech.com
> >Hello,
> >
> >Thanks to the help I obtained on this mailing list, I've been able to
> >customize u-boot (2013.10 release) to work on a custom omap4460 board.
> >Schematically, it's similar to the pandaboard, but uses the twl6032
> >pmic and has a NAND memory from micron present.
> >
> >
> >The problem I'm facing is that I can't seem to boot directly from the
> >nand memory chip. We've set the boot configuration pins to start with
> >NAND boot, but it doesn't seem to work. On probing the CS and
> >nand-busy lines we can see some activity happening, but don't
> >understand what it means.
> >
> >
> >Any suggestions on how I could debug this?
> >
> If this NAND has bus-width = 16, then you need to tweak the
> board file with following changes.
> Below code is for AM335x platforms, you need similar for omap4 platforms

No, the NAND memory I'm using has a bus-width of 8.

-Abraham V.


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