[U-Boot] Newbie SPL question for socfpga_sockit

[George Broz]

On 10 April 2016 at 10:47, Marek Vasut <marex at denx.de> wrote:
> On 04/09/2016 12:40 AM, George Broz wrote:
>> On 8 April 2016 at 05:36, Marek Vasut <marex at denx.de> wrote:
>>> On 04/08/2016 07:16 AM, Stefan Roese wrote:
>>>> On 08.04.2016 01:51, George Broz wrote:
>>>>
>>>> <snip>
>>>>
>>>>>>>> Try with the attached patch (and probably with dcache off)
>>>>>>>
>>>>>>> The patch applied cleanly. The behavior is unchanged with both
>>>>>>> dcache on and off. The "good" sticks still work, and "bad" sticks still don't.
>>>>>>
>>>>>> OK. Then I should probably go hunting for Kingston DataTraveler SE9,
>>>>>> right ? Can you give me a link to the stick you have, so I know what
>>>>>> crappy device to look for ? Thanks!
>>>>>
>>>>> Here it is [1] - I have the 8GB version.
>>>>>
>>>>> I think there will always be crappy sticks that don't work... but do you
>>>>> have any advice as to what properties will/might generally cause a problem?
>>>>>
>>>>> [1] http://www.amazon.com/Kingston-Digital-DataTraveler-DTSE9H-16GBZET/dp/B00DYQYITG
>>>>
>>>> I have exactly this stick here (16GiB) version. And it is detected just
>>>> fine in both, current mainline Armada XP (theadorable) and x86 boards
>>>> (conga-qeval20-qa3-e3845). Here my lsusb output:
>>>
>>> I bought the kingston stick and it's not detected on SoCFPGA SoCkit at
>>> all. Ouch :-(
>>>
>>> [...]
>>> Best regards,
>>> Marek Vasut
>>
>> For what it's worth - here is the marking on the OTG chip on the de0_nano_soc:
>>
>> SMSC
>> 3300-EZK
>> A1515AC13
>> 515AR3A
>> ASETV
>
> OK, that's the standard/recommended USB3300 PHY. I will keep fiddling
> with the Kingston SE9 USB stick to see what's going on, that's probably
> some other issue than the cache issue though.
>
On my third order for an OTG USB mini cable from Amazon, I finally got an
actual OTG cable!

On the SoCKit, using this cable the "dwc_otg_core_host_init: Timeout!"
messages no longer appear.

A few of the USB sticks I have here are immediately recognized and function
normally - a first for me with the latest version of u-boot. For
others, like the
Kingston SE9 stick, I get the same result as you - it's not detected at all.

I have yet to find one of the non-working USB sticks on the SoCKit
fail with the
same sort of long timeout followed by the zombie behavior exhibited by the
DE0/Kingston combination.

Best regards,
--George Broz

> --
> Best regards,
> Marek Vasut