[PATCH 0/6] Add SpacemiT K1 USB2.0 controllers support

[Ze Huang]

On Wed Aug 12, 2026 at 5:26 PM CST, Junzhong Pan wrote:
> The SpacemiT K1 SoC has two USB2.0 controllers, one has Dual-Role
> support, but the hardware has no internal OTG registers, the other is
> Host only. These controllers are compatible with Chipidea USB2 driver
> with some flags set and reset control support.
>
> This series is based on 7.2-rc1 and has been tested on Banana Pi F3
> development board.
>
> A self-powered USB device/hub is needed to test the host function of the
> dual-role controller on Banana Pi F3, a MINI-PCIe USB2.0 module (a
> cellular module e.g.) is needed to test the host only controller.
>
> Signed-off-by: Junzhong Pan <panjunzhong at linux.spacemit.com>

Tested on OrangePi RV2.

To use USB2.0 Type-A port as host on this board, usb2_0 needs:
  - dr_mode = "host"
  - a vbus-supply regulator driving gpio126

Tested-by: Ze Huang <huang.ze at linux.dev>

> ---
> Junzhong Pan (6):
>       dt-bindings: usb: ci-hdrc-usb2: add spacemit,k1-usb2 compatible
>       usb: chipidea: usb2: add optional reset support
>       usb: chipidea: usb2: add SpacemiT K1 support
>       riscv: dts: spacemit: add USB2.0 controller nodes for K1
>       riscv: dts: spacemit: enable USB2.0 controllers on BananaPi F3
>       riscv: defconfig: enable ChipIdea USB controller support
>
>  .../devicetree/bindings/usb/ci-hdrc-usb2.yaml      |  1 +
>  arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts    | 16 +++++++++
>  arch/riscv/boot/dts/spacemit/k1.dtsi               | 40 ++++++++++++++++++++++
>  arch/riscv/configs/defconfig                       |  4 +++
>  drivers/usb/chipidea/ci_hdrc_usb2.c                | 16 +++++++++
>  5 files changed, 77 insertions(+)
> ---
> base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
> change-id: 20260812-b4-spacemit-k1-usb2-97adfc283d58
>
> Best regards,