These patches introduce new Cadence driver to U-Boot. The first patch is to add the Cadence USB3 IP(CDNS3) core and driver for the usb gadget. The second patch introduce the xhci-imx8 usb host driver separately. The third patch introduce the cdns3 phy driver which can be used for both cdns3 host driver and gadget driver. The cdns3 usb gadget/host/phy driver are all used DM mode.
The current driver has been validated on i.MX8 platform. If someone want to test it, please note that the additional dts nodes/ config macros/clock driver are also essential. You can also get my test patches at https://github.com/sherrysun1/u-boot-imx.git to start your test quickly.
Changes in v4: - Keep all include list in files sorted. - Delete the unnecessary registers read in code. - Add ret return after wait_for_bit_le32() is failed. - Add macros instead those magic values.
Sherry Sun (4): USB: gadget: Add the cadence USB3 gadget driver USB: host: Add the USB3 host driver phy: Add USB PHY driver for the cadence USB3 USB: gadget: core: introduce ->udc_set_speed() method
Makefile | 1 + doc/device-tree-bindings/usb/cdns-usb3.txt | 39 + drivers/phy/Kconfig | 8 + drivers/phy/Makefile | 1 + drivers/phy/cdns3-usb-phy.c | 241 +++ drivers/usb/Kconfig | 2 + drivers/usb/cdns3/Kconfig | 20 + drivers/usb/cdns3/Makefile | 5 + drivers/usb/cdns3/cdns3-generic.c | 113 + drivers/usb/cdns3/cdns3-nxp-reg-def.h | 93 + drivers/usb/cdns3/core.c | 203 ++ drivers/usb/cdns3/core.h | 118 ++ drivers/usb/cdns3/dev-regs-macro.h | 116 + drivers/usb/cdns3/dev-regs-map.h | 117 ++ drivers/usb/cdns3/gadget-export.h | 26 + drivers/usb/cdns3/gadget.c | 2218 ++++++++++++++++++++ drivers/usb/cdns3/gadget.h | 225 ++ drivers/usb/cdns3/io.h | 30 + drivers/usb/gadget/epautoconf.c | 4 + drivers/usb/gadget/gadget_chips.h | 7 + drivers/usb/gadget/udc/Makefile | 1 + drivers/usb/gadget/udc/udc-core.c | 23 + drivers/usb/host/Kconfig | 9 + drivers/usb/host/Makefile | 1 + drivers/usb/host/xhci-imx8.c | 209 ++ include/linux/usb/gadget.h | 5 + scripts/Makefile.spl | 1 + 27 files changed, 3836 insertions(+) create mode 100644 doc/device-tree-bindings/usb/cdns-usb3.txt create mode 100644 drivers/phy/cdns3-usb-phy.c create mode 100644 drivers/usb/cdns3/Kconfig create mode 100644 drivers/usb/cdns3/Makefile create mode 100644 drivers/usb/cdns3/cdns3-generic.c create mode 100644 drivers/usb/cdns3/cdns3-nxp-reg-def.h create mode 100644 drivers/usb/cdns3/core.c create mode 100644 drivers/usb/cdns3/core.h create mode 100644 drivers/usb/cdns3/dev-regs-macro.h create mode 100644 drivers/usb/cdns3/dev-regs-map.h create mode 100644 drivers/usb/cdns3/gadget-export.h create mode 100644 drivers/usb/cdns3/gadget.c create mode 100644 drivers/usb/cdns3/gadget.h create mode 100644 drivers/usb/cdns3/io.h create mode 100644 drivers/usb/host/xhci-imx8.c