This patch series aims to add USB3.1 HOST, Peri and DRD support on RZ/V2M EVK platform. The reset for both host and peri are located in USB3DRD block. The USB3DRD registers are mapped in the AXI address space of the Peripheral module. RZ/V2M XHCI is similar to R-Car XHCI but it doesn't require any firmware. Host/device needs to do reset release and set the host/device function on DRD module, before accessing any registers. v1->v2: * Added Rb tag from Rob for host binding patch * Renamed clock-name from "host_axi"->"axi" * Drop quotes around usb-xhci.yaml. * Moved DRD interrupts from device ctrlr to DRD bindings * Updated interrupts and dropped interrupt-names in device ctrlr bindings * Renamed aclk->axi in device ctrlr bindings * Added DRD interrupts and interrupt-names in DRD bindings * Dropped peripheral reset and reset-names from DRD bindings * Added reg property for usb3 device ctrlr nodes * Renamed peri_axi->axi and apb->reg * Updated pattern properties and example. * Moved header file from include/linux/soc/renesas->include/linux/usb * Passing DRD irq resource from parent to usb3_peri for handling it. * As drd reg is now separated from usb3 peri, updated DRD reg handling in usb3 peri driver. * Removed usb3 peri reset handling from DRD driver. * Added Rb tag from Geert for reset and clock updates for xhci-plat. Note: * Patch12 dependup on [1] [1] https://patchwork.kernel.org/project/linux-renesas-soc/patch/20221209171836.71610-3-biju.das.jz@xxxxxxxxxxxxxx/ Biju Das (12): dt-bindings: usb: renesas,usb-xhci: Document RZ/V2M support dt-bindings: usb: renesas,usb3-peri: Update reset, clock-name and interrupts properties dt-bindings: usb: renesas,usb3-peri: Document RZ/V2MA bindings dt-bindings: usb: Add RZ/V2M USB3DRD binding usb: gadget: Add support for RZ/V2M USB3DRD driver usb: gadget: udc: renesas_usb3: Add role switch support for RZ/V2M usb: host: xhci-plat: Improve clock handling in probe() usb: host: xhci-plat: Add reset support xhci: host: Add Renesas RZ/V2M SoC support arm64: dts: renesas: r9a09g011: Add USB3 DRD, device and host nodes arm64: dts: renesas: rzv2mevk2: Enable USB3 DRD, Peripheral and Host arm64: dts: renesas: rzv2mevk2: Enable USB3 role switch .../bindings/usb/renesas,rzv2m-usb3drd.yaml | 129 ++++++++++++++++ .../bindings/usb/renesas,usb-xhci.yaml | 41 +++++- .../bindings/usb/renesas,usb3-peri.yaml | 40 +---- .../boot/dts/renesas/r9a09g011-v2mevk2.dts | 76 ++++++++++ arch/arm64/boot/dts/renesas/r9a09g011.dtsi | 45 ++++++ drivers/usb/gadget/udc/Kconfig | 7 + drivers/usb/gadget/udc/Makefile | 1 + drivers/usb/gadget/udc/renesas_usb3.c | 136 +++++++++++------ drivers/usb/gadget/udc/rzv2m_usb3drd.c | 139 ++++++++++++++++++ drivers/usb/host/Kconfig | 9 ++ drivers/usb/host/Makefile | 3 + drivers/usb/host/xhci-plat.c | 36 ++++- drivers/usb/host/xhci-rzv2m.c | 38 +++++ drivers/usb/host/xhci-rzv2m.h | 16 ++ include/linux/usb/rzv2m_usb3drd.h | 20 +++ 15 files changed, 649 insertions(+), 87 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/renesas,rzv2m-usb3drd.yaml create mode 100644 drivers/usb/gadget/udc/rzv2m_usb3drd.c create mode 100644 drivers/usb/host/xhci-rzv2m.c create mode 100644 drivers/usb/host/xhci-rzv2m.h create mode 100644 include/linux/usb/rzv2m_usb3drd.h -- 2.25.1
