Messages in this thread | | | From | Chris Packham <> | Subject | Dealing with custom hardware on x86 | Date | Wed, 10 Nov 2021 03:02:11 +0000 |
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Hi,
I'm about to start a project involving custom hardware using an x86 CPU. Complicating things somewhat we will have a CPU board supplied by a 3rd party vendor using a COM Express type 7 connector which will plug in to the board we're designing (actually 2 different boards each with some modular aspects) .
Coming from an embedded (mostly ARM) background I'm used to describing the hardware via a devicetree and dealing with plug-in modules by loading devicetree overlays. How do people achieve this kind of thing on x86?
I gather ACPI is involved somewhere but the knowledge that the BIOS has will go as far as the COM Express header and somehow we'll have to tell the kernel about the various non-probeable (mostly i2c) devices on our board which is kind of where I'm stuck. Any pointers would be greatly appreciated.
Thanks, Chris
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