The USB IP used in the Allwinner H616 SoC is very similar to the one used in the H3 chip: it contains four USB 2.0 host controllers and four PHYs, where the first PHY is shared with a separate USB-OTG controller. But out of the four ports, only port 2 works out of the box, the other ports require some resources and registers of port 2 to be enabled as well. Implement the required workaround in the Allwinner USB PHY driver, and key this off the respective compatible string. This core code is contained in patch 3/7. The first two patches add the respective DT binding documentation, whereas patch 4/7 encodes all the configuration options for the H616 USB PHY into the driver. The last three patches add the respective devicetree nodes, to the H616 .dtsi, but also to the DTs of the two supported boards. This allows USB to be used on any H616 based machine. This was tested on the X96 Mate box. This series is an update on what was included in earlier versions of the initial H616 support series, but was later dropped to get the basic support in first more quickly. It is now based on v6.0-rc4 and is also available here: https://github.com/apritzel/linux/commits/h616-usb Please have a look and test on your hardware, especically on all ports exposed on header pins of the OrangePi Zero2 board. Cheers, Andre Andre Przywara (7): dt-bindings: usb: Add H616 compatible string dt-bindings: usb: Add special clock for Allwinner H616 PHY phy: sun4i-usb: Introduce port2 SIDDQ quirk phy: sun4i-usb: Add support for the H616 USB PHY arm64: dts: allwinner: h616: Add USB nodes arm64: dts: allwinner: h616: OrangePi Zero 2: Add USB nodes arm64: dts: allwinner: h616: X96 Mate: Add USB nodes .../phy/allwinner,sun8i-h3-usb-phy.yaml | 19 +++ .../devicetree/bindings/usb/generic-ehci.yaml | 1 + .../devicetree/bindings/usb/generic-ohci.yaml | 1 + .../allwinner/sun50i-h616-orangepi-zero2.dts | 42 +++++ .../dts/allwinner/sun50i-h616-x96-mate.dts | 25 +++ .../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 160 ++++++++++++++++++ drivers/phy/allwinner/phy-sun4i-usb.c | 71 ++++++++ 7 files changed, 319 insertions(+) -- 2.35.3
