diff options
Diffstat (limited to 'Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt index 30595964876a..266c2d917a28 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt @@ -32,13 +32,17 @@ Required properties: "mcu_ck": mcu_bus clock for register access, "dma_ck": dma_bus clock for data transfer by DMA - - phys : a list of phandle + phy specifier pairs + - phys : see usb-hcd.txt in the current directory Optional properties: - - mediatek,wakeup-src : 1: ip sleep wakeup mode; 2: line state wakeup - mode; - - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup - control register, it depends on "mediatek,wakeup-src". + - wakeup-source : enable USB remote wakeup; + - mediatek,syscon-wakeup : phandle to syscon used to access the register + of the USB wakeup glue layer between xHCI and SPM; it depends on + "wakeup-source", and has two arguments: + - the first one : register base address of the glue layer in syscon; + - the second one : hardware version of the glue layer + - 1 : used by mt8173 etc + - 2 : used by mt2712 etc - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0, bit1 for u3port1, ... etc; - vbus-supply : reference to the VBUS regulator; @@ -46,6 +50,10 @@ Optional properties: - pinctrl-names : a pinctrl state named "default" must be defined - pinctrl-0 : pin control group See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt + - imod-interval-ns: default interrupt moderation interval is 5000ns + +additionally the properties from usb-hcd.txt (in the current directory) are +supported. Example: usb30: usb@11270000 { @@ -64,8 +72,9 @@ usb30: usb@11270000 { vusb33-supply = <&mt6397_vusb_reg>; vbus-supply = <&usb_p1_vbus>; usb3-lpm-capable; - mediatek,syscon-wakeup = <&pericfg>; - mediatek,wakeup-src = <1>; + mediatek,syscon-wakeup = <&pericfg 0x400 1>; + wakeup-source; + imod-interval-ns = <10000>; }; 2nd: dual-role mode with xHCI driver |