在 2017-10-16 17:32，Maxime Ripard 写道：
On Tue, Oct 10, 2017 at 07:24:28AM +0800, Icenowy Zheng wrote:
>> + interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
>> + clocks = <&ccu CLK_BUS_OHCI1>,
>> + <&ccu CLK_BUS_EHCI1>,
>> + <&ccu CLK_USB_OHCI1>;
>> + resets = <&ccu RST_BUS_OHCI1>,
>> + <&ccu RST_BUS_EHCI1>;
>
>Why do you need to take the OHCI resources too?
AW's strange design -- without OHCI resources taken EHCI
won't work.
How has this been tested?
As EHCI is probed before OHCI, this behavior is easy to
appear if the OHCI resources are removed.
Thanks!
Maxime
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