EHCI on armv6 with Write-Back caches

[Oleksandr Tymoshenko]

On 2012-12-21, at 6:20 AM, Hans Petter Selasky <hselasky at c2i.net> wrote:

> On Friday 21 December 2012 01:18:57 Oleksandr Tymoshenko wrote:
>> On 12/20/2012 10:56 AM, Hans Petter Selasky wrote:
>>> FYI - please test!
>>> 
>>> ----------  Forwarded Message  ----------
>>> 
>>> Subject: Re: EHCI on armv6 with Write-Back caches
>>> Date: Thursday 20 December 2012, 19:46:34
>>> From: Hans Petter Selasky <hselasky at c2i.net>
>>> To: Warner Losh <imp at bsdimp.com>
>>> CC: Andrew Turner <andrew at fubar.geek.nz>, Oleksandr Tymoshenko
>>> <gonzo at freebsd.org>, freebsd-usb at freebsd.org, alfred at freebsd.org,
>>> freebsd- wireless at freebsd.org
>>> 
>>> Hi,
>>> 
>>> I've run some basic tests over here (x86) which passed after some patch
>>> modifications. Please test and verify for your ARM targets:
>>> 
>>> http://svnweb.freebsd.org/changeset/base/244500
>>> http://svnweb.freebsd.org/changeset/base/244503
>>> 
>>> Please also verify that upgt and uwrt and uath still works like expected.
>>> 
>>> --HPS
>> 
>> if_smsc fails with following diagnostics:
>> smsc0: error: allocating USB transfers failed
>> 
>> The problem is that Bulk-In transfer buffer is 5 pages long but tag's
>> boundary limitation is
>> a page and it's impossible to allocate 5 pages without crossing page
>> boundary
> 
> Can you try again using this patch:
> 
> http://svnweb.freebsd.org/changeset/base/244535

Seems to work now, thanks