[LEDE-DEV] [PATCH] cns3xxx: backport upstream SPI Flash partition sizes

[Tim Harvey]

On Thu, Sep 15, 2016 at 4:03 AM, Felix Fietkau <nbd at nbd.name> wrote:
> On 2016-09-15 12:16, Felix Fietkau wrote:
>> On 2016-09-15 11:34, Koen Vandeputte wrote:
>>> As indicated by Tim Harvey:
>>>
>>> The 4.4 kernel is not easily sized down to below the 1.5MB limit
>>> imposed by the SPI flash MTD partition mapping. Increase this
>>> to 2MB where it is for NOR flash devices.
>>> Additionally add a check that ensures the kernel fits within
>>> the 2MB limit.
>>>
>>> This resolves boot issues on SPI based boards such as the GW2380/82.
>>>
>>> https://github.com/Gateworks/openwrt/commit/17b860f32fe5739042445eb852109682d6ff7d99
>>>
>>> Signed-off-by: Koen Vandeputte <koen.vandeputte at ncentric.com>
>> I'm now working on the approach that I encouraged Tim to take when this
>> issue came up last. I think simply bumping the hardcoded kernel/rootfs
>> split partition sizes is a hack at best, my solution involves using
>> mtdsplit to make the kernel/rootfs split dynamic, like on other platforms.
>> From what I can tell, the old sysupgrade script is written in a way that
>> the image format changes will not break sysupgrade from old firmware to
>> new and vice versa.
> It's done now and pushed to my staging tree:
> https://git.lede-project.org/?p=lede/nbd/staging.git;a=commit;h=aa58ee42c93136a8e158ef317cad20806001c039
>
> Please take a look at the commit description, test it, and let me know
> what you think.
>
> - Felix

Thanks Felix! I started to work on this and then got pulled away to
something else. I'll take a look and report back.

Tim