[U-Boot] [PATCH 3/4] usb: xhci-dwc3: Add USB2 PHY configuration

Marek Vasut marex at denx.de
Sun Jun 30 18:07:42 UTC 2019


On 6/30/19 6:07 PM, Mark Kettenis wrote:
>> From: Marek Vasut <marex at denx.de>
>> Date: Sun, 30 Jun 2019 16:31:41 +0200
>>
>> On 6/30/19 4:25 PM, Mark Kettenis wrote:
>>>> From: Marek Vasut <marex at denx.de>
>>>> Date: Sun, 30 Jun 2019 15:36:03 +0200
>>>>
>>>> On 6/30/19 3:31 PM, Kever Yang wrote:
>>>>> Hi Mark,
>>>>>
>>>>>     I add Marek and Bin Meng for this patch, I'm not sure where
>>>>>
>>>>> are these phy setting should go.
>>>>>
>>>>> Thanks,
>>>>> - Kever
>>>>> On 06/30/2019 12:29 AM, Mark Kettenis wrote:
>>>>>> Configure USB2 PHY register based on "phy_type" property and
>>>>>> handle all the quirks that are relevant for Rockchip RK3399 SoCs.
>>>>
>>>> Is this a documented DT property or some ad-hoc U-Boot one ?
>>>
>>> Yes, these are all standard Linux DT properties.  See usb/generic.txt
>>> for "phy_type", and usb/dwc3.txt for "snps,dis-enblslpm_quirk" and
>>> "snps,dis-u2-freeclk-exists-quirk".
>>>
>>>> Is this a fix for this release or feature for next ?
>>>
>>> Good question.  The series fixes a regression, but that regression was
>>> already present in 2019.04 and you can still boot from uSD, eMMC or
>>> USB2 without this fixed.
>>
>> Do we expect this to break anything ?
> 
> I don't.  The DT properties that are being checked are only present
> for in the DTs for RK3399 boards, so this shouldn't affect any other
> devices.
> 
> But while checking for this I noticed that I misspelled one of the
> properties, which had a dash in the old U-Boot-specific binding but an
> underscore in the official Linux binding.  So I sent out a v2 of the
> series.

So now that I see the other patches, this is certainly stuff for next
release.

-- 
Best regards,
Marek Vasut


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