Re: OE Linux & board-support-package


jchludzinski
 

OK, let's go with that.

I've watched the "Live Coding with Yocto Project #1: download and first build" youtube video. Where is the BSP built in this procedure?

On 2022-05-05 03:16, Michael Opdenacker via lists.yoctoproject.org wrote:
On 5/5/22 08:39, jchludzinski via lists.yoctoproject.org wrote:
A board-support-package (BSP) is software that provides a layer of
abstraction from the physical board specifics for the host embedded OS
(e.g., VXworks).
I believe the device tree files (*.dts, *dtsi) in OE Linux provide the
same function. It allows to OE kernel code to be independent of device
specifics.
The Device Tree files are just descriptions of the hardware. In a
perfect world, you could indeed use the same mainline kernel to support
all possible devices. However, that kernel would be unnecessarily big
for your custom system. You most probably want to customize its
configuration, and may also need custom kernel drivers and patches. 
There's also the need for a bootloader compiled for your platform.
That's why we need BSPs :-)
Cheers,
Michael.

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