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

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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].


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