[PATCH v5 0/4] Add USB support for Canaan K230

[Jiayu Du]

On Wed, Jan 21, 2026 at 10:55:21PM +0800, Jiayu Du wrote:
> Add support for the USB PHY and DWC2 IP which is used by Canaan K230,
> and made relevant changes to the DTS.
> 
> This series is based on the initial 100ask K230 DshanPi series [1] which
> is based on the clock and pinctrl series. Check the details in the link.
> 
> Link: https://lore.kernel.org/all/20260115060801.16819-1-jiayu.riscv@isrc.iscas.ac.cn/ [1]
> 
> Changes in v5:
> - Changed the year of Copyright to 2026.
> - Add blank line after the declaration of variables
> - Fix wrong alignment.
> - Link to v4: https://lore.kernel.org/all/20260120143243.71937-1-jiayu.riscv@isrc.iscas.ac.cn/
> 
> Changes in v4:
> - Shrink reg length to match the address/size-cells in k230-usb-phy yaml.
> - Move all PHY instance creation and initialization from xlate to probe.
> - Modify xlate function to only perform index lookup for PHY instances.
> - Define all register base offsets macros at the top of file instead of
>   hard-coding magic numbers directly in probe.
> - Link to v2: https://lore.kernel.org/all/20260115064223.21926-1-jiayu.riscv@isrc.iscas.ac.cn/
> 
> Changes in v3:
> - Please ignore v3.
> 
> Changes in v2:
> - Fold the child into the parent in dtsi.
> - Define one usbphy with phy-cells=1.
> - Delete the clock of the usbphy as it is not needed.
> - Link to v1: https://lore.kernel.org/all/20251230023725.15966-1-jiayu.riscv@isrc.iscas.ac.cn/
> 
> Jiayu Du (4):
>   dt-bindings: phy: Add Canaan K230 USB PHY
>   dt-bindings: usb: dwc2: Add support for Canaan K230 SoC
>   phy: usb: Add driver for Canaan K230 USB 2.0 PHY
>   riscv: dts: canaan: Add syscon and USB nodes for K230
> 
>  .../bindings/phy/canaan,k230-usb-phy.yaml     |  35 +++
>  .../devicetree/bindings/usb/dwc2.yaml         |   3 +
>  .../boot/dts/canaan/k230-canmv-dshanpi.dts    |  17 ++
>  arch/riscv/boot/dts/canaan/k230.dtsi          |  35 +++
>  drivers/phy/Kconfig                           |   1 +
>  drivers/phy/Makefile                          |   1 +
>  drivers/phy/canaan/Kconfig                    |  14 +
>  drivers/phy/canaan/Makefile                   |   2 +
>  drivers/phy/canaan/phy-k230-usb.c             | 284 ++++++++++++++++++
>  9 files changed, 392 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/canaan,k230-usb-phy.yaml
>  create mode 100644 drivers/phy/canaan/Kconfig
>  create mode 100644 drivers/phy/canaan/Makefile
>  create mode 100644 drivers/phy/canaan/phy-k230-usb.c
> 
> -- 
> 2.52.0
> 
Hello Vinod, could you please take a look at this patch? Thank you!

Regards,
Jiayu Du