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Date:      Sat, 14 Sep 2013 16:25:20 -0700
From:      Tim Kientzle <tim@kientzle.com>
To:        Ian Lepore <ian@freebsd.org>
Cc:        Su Kang Yin <cantona@cantona.no-ip.org>, freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: FreeBSD 10.0-ALPHA1 r255532 bootup freeze on BBB
Message-ID:  <0AC11ABC-5C40-4C63-B90D-2E686562BFD2@kientzle.com>
In-Reply-To: <1379188513.1197.35.camel@revolution.hippie.lan>
References:  <CAHjFwoBcLfy%2BU9B=jLMWXGF7dMZfzTSwBak05V7qs-MNZy=h4w@mail.gmail.com> <1379188513.1197.35.camel@revolution.hippie.lan>

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On Sep 14, 2013, at 12:55 PM, Ian Lepore <ian@freebsd.org> wrote:

> On Sun, 2013-09-15 at 01:15 +0800, Su Kang Yin wrote:
>> Log:
>> 
>> 48.0MHz/4bit/65535-block
>> uhub0: 1 port with 1 removable, self powered
>> uhub1: 1 port with 1 removable, self powered
>> 
>> ^^^^^^^^^^ Stuck here.... and I didn't connect any usb device.
>> 
>> Any idea?
>> 
> 
> Two thoughts... make sure you're powering the board with a 5v adapter,
> not through a usb connection,

I have lots of 5v supplies around but when I recently tried
to run one of my BBB from a USB connection, it did hang
a lot.  The BBW worked okay, though.

I suspect we're missing some boot code to detect
the power source and adjust the CPU clock accordingly.

> and try adding this to your kernel config:
> 
> option USB_HOST_ALIGN=64
> 
> If I don't use a separate power supply I get strange usb errors (but not
> a hang).  If I do use the power supply, I get a data abort.  Usb has
> never worked on my BBW, but I don't need it, so I've never tried hard to
> figure out why.

I've just recently started tinkering with USB on my BBB here.
In particular, I've been able to run a urtwn USB Wifi adapter
(Specifically: adafru.it/814).

I haven't tried with the BBW, though.

Tim





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