[U-Boot] [PATCH 0/4] USB: Fix EHCI to work with data cache enabled

[Marek Vasut <marex@denx.de>]

Dear puneets,

> Dear Marek,
> After applying these 4 patches I don't see any alignment spew and it
> detects the
> mass storage device perfectly though I see a warning "EHCI timed out on
> TD - token=0x80008c80"
> consistently in each "usb reset".

That's something else (unrelated to this patchset), I saw it in your backlog 
too. Can you try debuging it on top of these patches? Because these patches fix 
a lot of other issues, so let's take them as a base for now. Also, did you 
really test dos partition table and vfat? I had to fix them to work with 
patches, you change to part_dos.c wasn't enough.

> 
> Thanx & Regards,
> Puneet
> 
> On Monday 09 April 2012 08:42 AM, Marek Vasut wrote:
> > Dear Marek Vasut,
> > 
> >> This patchset reworks the USB core and EHCI-HCD to work with data
> >> caches.
> >> 
> >> Marek Vasut (3):
> >>    USB: Drop ehci_alloc/ehci_free in ehci-hcd
> >>    USB: Drop cache flush bloat in EHCI-HCD
> >>    USB: Document the QH and qTD antics in EHCI-HCD
> >> 
> >> Puneet Saxena (1):
> >>    USB: Align buffers at cacheline
> >>   
> >>   common/cmd_usb.c            |    3 +-
> >>   common/usb.c                |   22 ++--
> >>   common/usb_hub.c            |   27 ++--
> >>   common/usb_storage.c        |   59 +++++-----
> >>   disk/part_dos.c             |    2 +-
> >>   drivers/usb/host/ehci-hcd.c |  284
> >> 
> >> ++++++++++++++----------------------------- include/scsi.h             
> >> |
> >> 
> >>    4 +-
> >>   
> >>   include/usb.h               |    4 +-
> >>   8 files changed, 155 insertions(+), 250 deletions(-)
> >> 
> >> Cc: Puneet Saxena<puneets@nvidia.com>
> > 
> > Puneet, can you please test this stuff? It should fix your cache
> > misalignment issues. Mine are now gone and USB works with caches on too.
> > 
> > I'd like to queue this for -next.
> > 
> > Best regards,
> > Marek Vasut
> 
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Best regards,
Marek Vasut