why platform bus is called as virtual bus.

[Chen-Yu Tsai]

On Thu, Nov 30, 2017 at 5:53 PM, Madhu K <madhu.sk89 at gmail.com> wrote:
> Hi All,
>
> I have couple of doubts regarding platform bus.
>
> 1) In arm architecture, which bus we call it as platform bus?
> 2) Why platform bus is called as virtual bus?

The platform bus is a catch-all for devices that don't have a
real bus type, like PCI, I2C, SPI, etc., associated with it.

It is a construct within Linux, and unlike PCI which is a real
hardware bus, hence being called a "virtual" bus.

ChenYu

>
> can anybody please explain the above things.
>
> Thanks,
> Madhu
>
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