Greg KH wrote:
On Fri, Jun 11, 2004 at 12:09:51AM +0800, Roc Wu wrote:
Hi folks:
As you know, the OTG is to enhance the Host abilities
of the Portable device (such as PDA, SmartPhone
.....). So in such embedded platform, PCI interface is
rarely used. However, the EHCI/OHCI/UHCI spec is
highly depend on the PCI interface. Is that true?
No. There are a few OHCI implementations that are not based on PCI in
the current tree.
For example, OMAP and (new) LH7A404. And I've heard
from vendors implementing EHCI without PCI ... part of
why the latest EHCI support has the PCI-specific code
more carefully #ifdeffed.
The OMAP chips using ARM 926 cores directly support OTG,
with a bit of help from an external transceiver.
OTG support for Linux is in the works already ... and
without requiring PCI! :)
- Dave
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