This is the final post in my blog series about getting my Chumby 8 from 2011 working on a modern 6.x Linux kernel, as opposed to the stock 2.6.28 kernel it came with. Here are links to all of the previous articles where I went into detail about the various obstacles I had to overcome: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12. I guess we’ll finish it off with lucky number 13.
It has been over two years since that fateful day when I started trying to get a newer U-Boot working on my Chumby to kick off this whole process! I haven’t been working nonstop on the Chumby this whole time though. I completed most of my work on this project by early 2023, and since then I’ve just been trying to catch up on writing these posts and also fixing little issues as they’ve come up. It’ll probably never be fully completed though. I will likely run into various problems in the future as new kernel versions come out and things inevitably break.
I’m not going to cover U-Boot as part of this. If you’re curious about that, check out the first post in the series. Most of the work I did was in Linux. Let’s start by looking at everything I accomplished in the kernel, grouped by subsystem. We’ll see the commits that are in the mainline kernel versus the commits that I haven’t submitted upstream for whatever reason. I’m also linking to all of the original patches on lore.kernel.org in case you want to see the related code review and discussion.
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