From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- .../bindings/usb/nvidia,tegra20-ehci.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt (limited to 'Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt') diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt new file mode 100644 index 000000000..f60785f73 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt @@ -0,0 +1,23 @@ +Tegra SOC USB controllers + +The device node for a USB controller that is part of a Tegra +SOC is as described in the document "Open Firmware Recommended +Practice : Universal Serial Bus" with the following modifications +and additions : + +Required properties : + - compatible : For Tegra20, must contain "nvidia,tegra20-ehci". + For Tegra30, must contain "nvidia,tegra30-ehci". Otherwise, must contain + "nvidia,-ehci" plus at least one of the above, where is + tegra114, tegra124, tegra132, or tegra210. + - nvidia,phy : phandle of the PHY that the controller is connected to. + - clocks : Must contain one entry, for the module clock. + See ../clocks/clock-bindings.txt for details. + - resets : Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. + - reset-names : Must include the following entries: + - usb + +Optional properties: + - nvidia,needs-double-reset : boolean is to be set for some of the Tegra20 + USB ports, which need reset twice due to hardware issues. -- cgit v1.2.3