[U-Boot] [PATCH v2 4/7] tegra: fdt: Add NAND controller binding and definitions

[Simon Glass]

Hi,

On Tue, Apr 17, 2012 at 11:38 AM, Scott Wood <scottwood at freescale.com> wrote:
> On 04/17/2012 01:33 PM, Simon Glass wrote:
>> Hi Stephen,
>>
>> On Fri, Apr 13, 2012 at 2:05 PM, Stephen Warren <swarren at wwwdotorg.org> wrote:
>>> On 04/13/2012 12:29 PM, Simon Glass wrote:
>>>> +nand-controller at 0x70008000 {
>>>> +     compatible = "nvidia,tegra20-nand";
>>>> +     wp-gpios = <&gpio 59 0>;                /* PH3 */
>>>> +     nvidia,width = <8>;
>>>> +     nvidia,timing = <26 100 20 80 20 10 12 10 70>;
>>>> +     nand at 0 {
>>>> +             compatible = "hynix,hy27uf4g2b", "nand-flash";
>>>
>>> The TRM says there can be up to 8 chip selects. Don't the NAND device
>>> sub-nodes need a reg property to indicate which chip-select they're on?
>>
>> We don't have driver support for this at present.
>
> That shouldn't matter.  The device tree is about describing the
> hardware.  Ideally the device tree shouldn't have to change if in the
> future you do get driver support for it.
>
> Also, unit addresses should only be present if reg is present, and they
> should match.

OK I will leave @0 in there, and add a reg property to the node.

>
> -Scott
>

Regards,
Simon