[U-Boot] xhci USB controller driver for x86 board

[Marek Vasut]

On 11/10/2016 07:21 AM, Stefan Roese wrote:
> Hi Chi,
> 
> On 10.11.2016 03:16, Kever Yang wrote:
>> Hi Chi,
>>
>> On 11/10/2016 12:51 AM, Ding, ChiX wrote:
>>> Hi there
>>> I'm having problem getting USB 3.0 controller working properly on the
>>> Intel Denverton x86 board.
>>> First I tried to use xhci driver, but there doesn't seem to be any
>>> xhci driver or generic driver for x86
>>> I only found the following
>>> xhci-exynos5.c:   { .compatible = "samsung,exynos5250-xhci" },
>>> xhci-mvebu.c:     { .compatible = "marvell,armada3700-xhci" },
>>> xhci-rockchip.c:  { .compatible = "rockchip,rk3399-xhci" },
>>
>> The xhci.c and xhci-dwc3.c in U-Boot is generic driver, but you may need
>> one driver for x86,
>> this is very like what kernel did, so you can reference to how kernel
>> enable the x86 dwc3.
> 
> Please take a look at this patch:
> 
> https://patchwork.ozlabs.org/patch/649489/
> 
> You do not need to change anything in the dts with this patch. Only
> enable the correct Kconfig options for your board.
> 
> I've been able to enable xHCI support on BayTrail with this. But as
> mentioned in the commit text, this still had some problems on my
> board. Unfortunately I've not had the time to dig into it in the
> meantime. It should be a good starting point for you. Perhaps it
> even works for you out-of-the-box.
> 
> Marek, could you perhaps queue this patch for the next merge
> window? It has a Reviewed-by from Simon.

Sure, done.

-- 
Best regards,
Marek Vasut