Convert Netgear WNR854T to devicetree

Quoted 4 lines · Andrew Lunn

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- the factory layout gives you almost no space to play with

Given that the kernel has grown in size over the years, does the mainline kernel fit in the factory layout?

The factory layout has a 6MB JFFS2 for root & uImage (uboot mounts it by default) + 1MB miscellany. So the main restriction on kernel size is the size of your userland.

The non-DT mainline layout is 1MB JFFS2 for uImage + 7MB rootfs. Which is a closer approximation to other devices with a uImage in it's own partition.

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Of course, one could also argue I'm breaking backwards compatibility at this point by changing it, so maybe I should put it back.

I don't mind breaking backwards compatibility, if the factory defaults no longer actually work.....

Also, lets think about the users here. This is a very old box. Anybody playing with one are probably of the sort who tinker with a classic car in the garage, taking the engine apart and putting it back together again. I doubt there are users of this box who take their car in for a service once they are out of windscreen washing water.

My line of thinking was that the only people that will see this default partition scheme are people that have just compiled a mainline kernel and booted it to see what happens. At which point you probably still have the Netgear image in Flash. If you had OpenWRT in Flash then in all likelihood you'd already be using an OpenWRT kernel too, with it's own flash layout. Finally, you could have rolled your own userland and put that on Flash, but by then you should know enough to do what you like :)