[OpenWrt-Devel] [PATCH] ath79: add D-Link DIR-615 rev. E4

Paul Fertser fercerpav at gmail.com
Fri Nov 8 11:41:33 EST 2019

Hi Adrian,

On Fri, Nov 08, 2019 at 03:53:59PM +0100, Adrian Schmutzler wrote:
> > With that I have 6 eraseblocks left for the rootfs_data partition (5
> > is the absolute minimum jffs2 allows).
> > 
> > > Be aware that you might not find someone willing to merge this.
> > 
> > I do not think this device is any worse than the other 4M devices
> > supported by ath79. [...]
> Well, TP-Link devices have 0x3d0000, Netgear has 0x3a0000, ...

With the useless partitions concatenated with firmware it'll be
0x3b0000, more than Netgear, same as many 4M ramips devices.

My current guess is that "mac" partition initially contains MAC (but
it is not used as D-Link specifies their own in nvram) and "lp" might
be a "language pack" which is to be downloaded and flashed separately
when using vendor firmware.

But even with 0x370000 I showed a sensible set of software that still
allows to have 6 eraseblocks for rootfs_data. I think the only
possibly essential part missing is DNSSEC but that would assume one is
using such an old and limited device as his or her border gateway
which is unlikely; yet this old 2x2 router can still serve nicely as a
"wireless extender" or just a "dumb AP".

> Well, on the other hand the question is whether we want to deviate
> from the principle of keeping vendor partitions to add support for a
> 4/32 device, especially since the partition size will be still small
> in comparison afterwards. If it might stop building anyway soon, we
> could also keep the partitions in official repo and whoever wants to
> use it will have to mess with the code.

For my own use I'm certainly planning to self-build and to have
firmware partition span till the beginning of "art". With regard to
the official tree, I guess that's up to the target maintainer (and
possibly the end-users?) to decide.

Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
mailto:fercerpav at gmail.com

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