[U-Boot] [PATCH V2 0/3] Add support for the MMC device to the vexpress

[Matt Waddel <matt.waddel@canonical.com>]

Hi Reinhard,

On 02/28/2011 10:58 PM, Reinhard Meyer wrote:
> Dear matt.waddel,
>> From: Matt Waddel<matt.waddel@linaro.org>
>>
<snip>
> Sorry, my original comment still holds true for the naming,
> now the name suggests that this driver is generic to ARM devices,
> which clearly is not true.

Correct. However, this hardware device was developed by ARM (the
company). As far as I know the other ARM mmc drivers, like the
omap3_mmc, are not. So that would be the difference between the
naming of these drivers.

I don't feel like this driver should be named after a particular
platform like vexpress, since this driver could be used in any
ARM hardware.

> 
> Can you list which devices have a MMCI that is covered by this
> driver? PL180 only? Or a series of PLxxx? It should be
> possible to find a naming that is more descriptive than "arm".

The PL180 is the name assigned to the hardware in the SOC.
Here is the description of device from the 1st paragraph in
the manual:

1.1 About the ARM PrimeCell Multimedia Card Interface (PL180)
   The PrimeCell Multimedia Card Interface (MCI) is an Advanced
Microcontroller Bus Architecture(AMBA) compliant, System-on-a-Chip
(SoC) peripheral that is developed, tested, and licensed by ARM.
----

As far as other platforms that use this hardware, it is in some
of the other ARM EVMs and some STEricsson platforms like the u300
and u8500.

> 
> (That such a generic name slipped into the kernel must not
> imply we have to make the same mistake in u-boot)

I agree. However, it would be nice to have a bit of a link between
the device in the kernel and the one in u-boot and I didn't think
having "_mmci" in the name would be too objectionable.

Would pl180_mmci.c work? or how about arm_pl180_mmc.c? I'm open to
other suggestions.

Best regards,
Matt

> 
> Best Regards,
> Reinhard