[PATCH 00/12] Add TH1520 USB support

[Drew Fustini]

On Thu, May 07, 2026 at 04:16:58PM +0800, Icenowy Zheng wrote:
> This patchset adds support for T-Head TH1520's USB functionality, and
> enabled it on the Lichee Pi 4A board.
> 
> The first 3 patches add support for the MISC subsystem clock
> contrtoller, which contains some USB clocks.
> 
> The next 2 patches add support for the USB PHY of T-Head TH1520, which
> is a wrapped Synopsys USB3.0 FemtoPHY with a little integration quirk;
> the controller itself is a properly configured DWC3 controller with sane
> default register values set.
> 
> Then one patch adds the USB PHY and controller nodes to the TH1520 DTSI
> file.
> 
> The remaining half of this patchset dedicates to enablement of USB on
> TH1520, because of the onboard hub of that board -- its USB2 signals are
> behind a switch that needs to be toggled on, and Vbus supplies for both
> the hub itself and downstream ports are managed via I2C-expanded GPIOs
> (because the SoC does not have enough GPIO pins).

Hi, thanks for working on USB. I tried to apply it to next-20260601 and
several of the dts patches no longer apply cleanly. Could you rebase?

In the meantime, I'll apply to 7.1-rc7 for testing.

Thanks,
Drew