Re: platform_device question

["Drasko Draskovic" <drasko.draskovic@xxxxxxxxx>]

Hi Bahadir,
> AMBA (AHB/APB etc.) is not visible as a bus on your platform from
> software point of view.
What do you mean exactly? Under /sys/bus there is amba directory. I added to my core.c two new amba_devices and I can see them in /sys/bus/amba/devices.

> Any amba-connected device effectively appears
> on your system as a memory-mapped device. Therefore you must declare
> your device as a platform device.
This also is not clear to me. Why should it be bad (having a memory mapped device instead port mapped device)?

> In that case, these devices
> have specific device id convention which comes handy when matching
> drivers with devices.
Is this has something to do with memory mapping?


Best regards,

-- 
Drasko DRASKOVIC

Software Developer
Elsys-DESIGN
Belgrade, Serbia
Tel. +381.11.311.5252
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