Upstream U-Boot for Linksys WRT1900ACS V2

[Daniel Golle]

Hi,

On Fri, Jul 31, 2026 at 01:24:43PM +0200, Brice GIBOUDEAU via openwrt-devel wrote:
> Hello,
> 
> I’m sharing some work I did to fix a mistake I did by erasing my U-Boot without a backup… yes I know ;-)
> 
> If this work can be useful for some of you I put the link to the repo below and if some of you want to enable it on other WRTxxx products don’t hesitate to contribute.
> 
> My work is based on the upstream version of U-Boot and not the very aging version provided by Linksys.
> 
> You can find it here:
> 
> https://github.com/TheMiNuS/wrt1900acsv2-uboot

We generally like to host replacement (and enhanced) loaders for
supported devices. The way do this is typically a set of patches
including defconfig and maybe a default environment, on top of
mainline U-Boot. In this particular case, imho it would be the best to
extend
https://github.com/openwrt/openwrt/tree/main/package/boot/uboot-mvebu
instead of having a patch set (leave alone an opqaue source tree) for
a single board. If you can extract your work into patches to be
applied there, that would be the best. Create all patches in a way
that can be applied upstream -- not all of your work may be suitable
or target upstream, but hardware drivers and defconfig typically the
answer is typically 'yes'.

If you have questions or need any help with that, let me know.