[PATCH 0/7] lantiq: initial support for x490 Fritzboxes

Mathias Kresin dev at kresin.me
Mon Feb 14 14:44:07 PST 2022

2/14/22 11:06, Torsten Duwe:
> On Sat, 12 Feb 2022 02:05:17 +0100
> Mathias Kresin <dev at kresin.me> wrote:
>> 2/11/22 23:39, kestrel1974 at t-online.de:
>>> I created a DTB and image configuration for Micron and non Micron
>>> NAND. This is probably the best way and not supporting just one
>>> NAND type per device. Unfortunately auto detection was not accepted
>>> by the kernel maintainers, so there is no other solution.
>>> I also saw the addition of ubifs. I have not used this so far and I
>>> wonder what the advantage is over using squashfs with overlay?
>> Let me cite https://en.wikipedia.org/wiki/UBIFS
>> - tracking NAND flash bad blocks
>> - providing wear leveling
>> NAND is a rather unreliable type of flash, hence some special
>> treatment has to be done to make it last as long as possible.
> Yes, I somehow had gotten the impression that UBI was mandatory for
> OpenWRT ports to new devices with NAND, so I went that way.
> Is sysupgrade prepared for squashfs+overlay as UBI volumes?

Yes, sysupgrade is fine. It's used for the BT Home Hub 5A for example.


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