> On Jun 7, 2023, at 10:33, Yuquan Wang <wangyuquan1...@phytium.com.cn> wrote:
> 
> The current sbsa-ref cannot use EHCI controller which is only
> able to do 32-bit DMA, since sbsa-ref doesn't have RAM below 4GB.
> Hence, this uses system bus XHCI to provide a usb controller with
> 64-bit DMA capablity instead of EHCI.
> 
> Signed-off-by: Yuquan Wang <wangyuquan1...@phytium.com.cn>

Signed-off-by: Chen Baozi <chenba...@phytium.com.cn 
<mailto:chenba...@phytium.com.cn>>


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