[PATCH 1/6] ARM: dts: am335x-phycore-som: Update NAND partition table

[Adam Ford]

On Fri, Jan 6, 2017 at 10:02 AM, Tony Lindgren <tony at atomide.com> wrote:
> * Teresa Remmet <t.remmet at phytec.de> [170106 01:28]:
>> Hello Brian,
>>
>> Am Donnerstag, den 05.01.2017, 09:56 -0800 schrieb Brian Norris:
>> > On Thu, Jan 05, 2017 at 09:18:45AM -0800, Tony Lindgren wrote:
>> > >
>> > > * Tony Lindgren <tony at atomide.com> [170105 07:37]:
>> > > >
>> > > > * Teresa Remmet <t.remmet at phytec.de> [170105 06:57]:
>> > > > >
>> > > > > To improve NAND safety we updated the partition layout.
>> > > > > Added barebox backup partition and removed kernel and oftree
>> > > > > partition. They are kept in ubi now.
>> > > > What about the users with earlier partition tables?
>> > > >
>> > > > Please read about "flag day" changes, typically they are not
>> > > > acceptable.
>> > > Adding Brian and Adam to Cc. Can you guys come up with some
>> > > solution on this?
>> > I don't have much context for this thread, and no I don't plan to
>> > solve
>> > your problems for you. But I can provide tips!
>> >
>> > >
>> > > I'm suggesting we leave the kernel nodes empty and let u-boot
>> > > populate them, so maybe you guys can discuss this on the related
>> > > lists.
>> > That's an option. I've worked with platforms that did something like
>> > this, and that's really one of the only ways you can handle putting
>> > partition information in the device tree. You're really hamstringing
>> > yourself when you put all the partition information in the device
>> > tree.
>> > And it's just dumb once that gets codified in the kernel source tree.
>> >
>>
>> In our case the bootloader does pass the partition table to the kernel.
>> So it gets overwritten anyway. This was just more for backup,
>> if someone uses a different bootloader. But I'm fine with removing the
>> nand partition table completely from the kernel device tree.
>> Same with the SPI nor partition table.
>>
>> I will send patches for this.
>
> OK thanks! Also thank you Brian for your comments.
>

Tony - I tested leaving the partition info as-is with the updates from
the bootloader and it works.  Would you prefer that I match Brian and
remove the partition table completely, or should I just leave my board
alone?

I am good either way.

> Regards,
>
> Tony

adam