Want to Get Suggestion for MX28 USB Submisson

Chen Peter-B29397 B29397 at freescale.com
Mon Nov 28 03:10:14 EST 2011


 
> Peter,
> 
> On Mon, Nov 28, 2011 at 03:06:48AM +0000, Chen Peter-B29397 wrote:
> > Tony Lin has submitted Freescale mx28 USB Patch at August (See:
> > http://www.spinics.net/lists/linux-usb/msg50201.html), but it hasn't
> > been accepted. I would like to re-submit mx28 usb patches, before
> > that, I would like get some suggestion from you. I think your
> > suggestion will also be benefit for coming mx53, mx50 and mx6q's
> > submission.
> >
> > All Recently Freescale SoC's USB controller are the same, they are
> > mx23, mx25, mx28, mx31, mx35, mx37, mx50, mx51, mx53, and mx6.
> 
> We have recently worked on the USB device part of the MX28, and it
> turned out that it is an Synopsys IP core and the driver for that is
> ci13xxx_udc.c. Marc Kleine-Budde has sent patches to make it more
> generic and fix several locking issues, so it currently works up to a
> certain degree on MX28.
> 
> The whole ci13xxx issue is a huge mess: there are 4 different drivers
> for this IP core in the kernel, all in different states.
> 
> So my suggestion is:
> 
> - help to mainline Heikki's patches (port your platform, help testing)
> - let's improve the ci13xxx driver for i.MX.
> 
Robert, thanks for your suggestion, I just wonder if it will cause mx28
usb upstream a little later?

> rsc
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