| Message ID | 20240429-usb-dts-gs101-v2-0-7c1797c9db80@linaro.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | enable USB on Pixel 6 (Oriole) | expand |
On Mon, 29 Apr 2024 11:35:48 +0100, André Draszik wrote: > These patches enable USB in peripheral mode on Pixel 6. > > We can only support peripheral mode at this stage, as the MAX77759 TCPCI > controller used on Pixel 6 to do the role selection doesn't have a(n > upstream) Linux driver. Therefore the role is defaulted to peripheral > without any endpoints / ports. > > [...] Applied, thanks! [1/2] arm64: dts: exynos: gs101: add USB & USB-phy nodes https://git.kernel.org/krzk/linux/c/14d15fcbe0f1fac5979a0b01160f3651340e38b4 [2/2] arm64: dts: exynos: gs101-oriole: enable USB on this board https://git.kernel.org/krzk/linux/c/b93b3140e82a0e48442087c38346eabfb92c63af Best regards,
These patches enable USB in peripheral mode on Pixel 6. We can only support peripheral mode at this stage, as the MAX77759 TCPCI controller used on Pixel 6 to do the role selection doesn't have a(n upstream) Linux driver. Therefore the role is defaulted to peripheral without any endpoints / ports. For the same reason, we can not detect the orientation of a SS USB-C cable and therefore it will only establish a link in SS mode in one of the possible orientations of the cable. In all other cases, the link will be HS. This series has a dependency on other patches, please see below. I have mainly tested this as CDC ECM Ethernet device using the following: mount -t configfs configfs /sys/kernel/config/ modprobe libcomposite modprobe usb_f_ecm mkdir /sys/kernel/config/usb_gadget/g3 cd /sys/kernel/config/usb_gadget/g3 echo 0xadad > idVendor echo 0xddaa > idProduct mkdir strings/0x409 echo 01234567 > strings/0x409/serialnumber echo ADADAD > strings/0x409/manufacturer cat /proc/device-tree/model > strings/0x409/product # create the function (name must match a usb_f_<name> module such as 'acm') mkdir functions/ecm.usb0 # stable MAC addresses echo "6e:27:3a:b9:40:87" > functions/ecm.usb0/dev_addr echo "ca:49:84:b0:3b:bc" > functions/ecm.usb0/host_addr mkdir configs/c.1 ln -s functions/ecm.usb0 configs/c.1/ echo $(ls -1 /sys/class/udc/) > UDC ifconfig usb0 192.168.1.2 up at which point the other side should detect it and network communication becomes possible (once the other side also configures its network interface). Due to the clock IDs and DTS phandle references, this series depends on the bindings and DTS patches "dt-bindings: clock: google,gs101-clock: add HSI0 clock management unit" "arm64: dts: exynos: gs101: enable cmu-hsi0 clock controller" of the series in https://lore.kernel.org/r/20240423-hsi0-gs101-v1-0-2c3ddb50c720@linaro.org (which have been merged to linux-next already) Furthermore, it also depends on the bindings for USB and USB-phy which have been proposed as part of: https://lore.kernel.org/r/20240423-usb-dwc3-gs101-v1-0-2f331f88203f@linaro.org and https://lore.kernel.org/r/20240423-usb-phy-gs101-v1-0-ebdcb3ac174d@linaro.org respectively and haven't been merged yet. Signed-off-by: André Draszik <andre.draszik@linaro.org> --- Changes in v2: - fix commit messages - rebase against 20240429 linux-next - Link to v1: https://lore.kernel.org/r/20240423-usb-dts-gs101-v1-0-3421b0371298@linaro.org --- André Draszik (2): arm64: dts: exynos: gs101: add USB & USB-phy nodes arm64: dts: exynos: gs101-oriole: enable USB on this board arch/arm64/boot/dts/exynos/google/gs101-oriole.dts | 24 +++++++++++++ arch/arm64/boot/dts/exynos/google/gs101.dtsi | 41 ++++++++++++++++++++++ 2 files changed, 65 insertions(+) --- base-commit: b0a2c79c6f3590b74742cbbc76687014d47972d8 change-id: 20240423-usb-dts-gs101-4269e0177c0f Best regards,