Hi Jian-Hong,
On Mon, 2019-12-16 at 14:46 +0800, Jian-Hong Pan wrote:

Thanks for your effort! System can have USB with this patch series, if the

:)

device tree is modified properly.
Here is the question: Will not the device tree "scb/ranges" in this patch
conflict with commit be8af7a9e3cc ("ARM: dts: bcm2711-rpi-4: Enable GENET
support")?

You're right, the patch needs to be refreshed.

I'm going to send a v5 of the series factoring out all the log2.h changes, and
addressing this.

Regards,
Nicolas