Hello everyone, This is my first attempt at working with Linux on a custom board, which seems quite differently from RTOS development I am used to. I have been looking into the Yocto Project to create a custom distribution, but before modifying Linux itself I would like to understand how to start working from the default Poky distro to get it running on a custom board. I currently have the OSD3358-SM-RED dev kit board from Octavo Systems and will soon have my custom board based on the OSD3358 C-SiP (SiP with AM3358 inside). As a first step I would like to get Poky running on the dev kit.
I have checked that Yocto succeeds building the minimal image for Qemu on branch Scarthgap and Ubuntu 22.04 host. I got the device tree sources for the board from Octavo Systems' GitHub. I guess that adding the meta-ti layer along with its dependencies should add support for the AM3358 processor (although I am unsure as to what exactly Arago is and if I can ignore it for a minimal Poky build). Then I would probably need a custom layer to add custom recipes including the device tree sources. But with my current knowledge, I can't get much further than this. I have seen the processor SDK for AM335x but I was wondering if there would be a more direct way of doing things starting from Poky. Additionally, I would like to be able to use my Linux distro on other custom boards which won't necessarily use TI processors (e.g. Microchip's SAMA7G54), so I was unsure if the SDK was a good development environment for this case. I would basically like to learn a process that would work for any board with any processor as long as BSPs are provided. I have checked the documents from Octavo Systems but their approach of "hacking" a Beaglebone image doesn't really fit into my objective. So, any help would be appreciated!
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