Hi Tony, Pekon
On Thu, Jun 26, 2014 at 03:40:44AM -0700, Tony Lindgren wrote:
> * Pekon Gupta <pekon@xxxxxx> [140624 05:26]:
> > +
> > +&gpmc {
> > + ranges = <0 0 0 0x01000000>; /* address range = 16MB (minimum GPMC partition) */
> > + nand@0,0 {
> > + status = "disabled";
> > + reg = <0 0 4>; /* device IO registers */
>
> Hmm so what about other capes potentially also using GPMC CS0?
>
> Can you please do a check with two .dtsi files trying to use
> GPMC CS0 and see what the produced .dtb file looks like after
> decompiling it with dtc?
>
> I'd assume the 16MB GPMC partition will be just fine for many
> devices and can be also be larger if NOR needs it so maybe it
> can be handled for almost all the cases.
>
> The names for devices must be unique though to avoid them
> getting merged. And I don't know if gpmc.c skips disabled devices
> properly.
It doesn't. I've just sent a patch for it.
http://lists.infradead.org/pipermail/linux-arm-kernel/2014-June/266966.html
Regards,
Guido
>
> Regards,
>
> Tony
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--
Guido Martínez, VanguardiaSur
www.vanguardiasur.com.ar
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