Re: [PATCH RESEND] ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue

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Op 2 mei 2012, om 12:38 heeft Raja, Govindraj het volgende geschreven:

> On Wed, May 2, 2012 at 2:17 PM, Russ Dill <Russ.Dill@xxxxxx> wrote:
>> On Mon, Mar 19, 2012 at 6:34 AM, Raja, Govindraj <govindraj.raja@xxxxxx> wrote:
>>> On Mon, Mar 19, 2012 at 12:12 PM, Keshava Munegowda
>>> <keshava_mgowda@xxxxxx> wrote:
>>>> From: Keshava Munegowda <Keshava_mgowda@xxxxxx>
>>>> 
>>>> It is observed that the echi ports of 3430 sdp board
>>>> are not working due to the random timing of programming
>>>> the associated GPIOs of the ULPI PHYs of the EHCI for reset.
>>>> If the PHYs are reset at during usbhs core driver, host ports will
>>>> not work because EHCI driver is loaded after the resetting PHYs.
>>>> The PHYs should be in reset state while initializing the EHCI
>>>> controller.
>>>> The code which does the GPIO pins associated with the PHYs
>>>> are programmed to reset is moved from the USB host core driver
>>>> to EHCI driver.
>>> 
>>> I tested on beagle xm where gpio nreset is requested from
>>> board file.
>>> (Basic enumertaion after gpio nreset seems to work fine,
>>> Hub and smsc lan chip get detected afetr boot up)
>>> 
>> 
>> What base did you test this on top of? my xM is failing USB-wise when
>> I apply this on v3.3.3 (with the UART mux fix patch) and where it is
>> applied within master (3.4-rc4, again, with the UART mux fix patch).
>> Additionally, reverting this patch from 3.4-rc5 causes rc5 to work
>> properly.
>> 
> 
> Works for me be on 3.4-rc5 Beagle-XM even without reverting the patch
> 
> Logs as in here [1].

>From your log:

[    1.705291] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    3.726593] ehci-omap ehci-omap.0: OMAP-EHCI Host Controller

Why is the ehci stuff taking more than 2 seconds?

regards,

Koen--
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