How to bring up the Linux Kernel on a new platform

I've done this for a cortex-m in qemu (meaning I wrote the chip and peripheral emulation code too for the timer, uart, sd controller with dma, and rcc). But I used buildroot. So much easier to keep track of everything and it's very easy to start with (unlike yocto). I recommend taking a look at buildroot.

You also don't need an MMU to run Linux. Just helps compatibility.

Good work

Excellent post. Your file format RE looks like an additional one to add to the reading queue as well: https://werwolv.net/posts/file_format_reverse_engineering/

Great post, so neat to see it running in the browser! One question: why not thin the config a little? USB, SOUND, VGA, etc. are all slowing down the boot but don't have hardware to control.

really enjoyed this - great to see modern C++ as well, we were all on Assembly and C when I had to do this on a Freescale/iMX chipset for a wireless router!

So good though taking a reference design, re-laying it out with new modules and then bringing it to life with a scope and a datasheet.

I can only imagine how much will have changed with LLMs being able to be read and have a harness to do the hard work for you!

What tends to be the biggest surprise when bringing Linux up on completely new hardware?