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70 lines
2.4 KiB
Diff
70 lines
2.4 KiB
Diff
From ba126a519da8a036dae0032e9d5a89e47570e5fb Mon Sep 17 00:00:00 2001
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From: "chunfeng.yun@mediatek.com" <chunfeng.yun@mediatek.com>
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Date: Tue, 17 Nov 2015 17:18:39 +0800
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Subject: [PATCH 018/102] dt-bindings: Add a binding for Mediatek xHCI host
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controller
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add a DT binding documentation of xHCI host controller for the
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MT8173 SoC from Mediatek.
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Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
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---
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.../devicetree/bindings/usb/mt8173-xhci.txt | 51 ++++++++++++++++++++
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1 file changed, 51 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/usb/mt8173-xhci.txt
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/usb/mt8173-xhci.txt
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@@ -0,0 +1,51 @@
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+MT8173 xHCI
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+
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+The device node for Mediatek SOC USB3.0 host controller
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+
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+Required properties:
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+ - compatible : should contain "mediatek,mt8173-xhci"
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+ - reg : specifies physical base address and size of the registers,
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+ the first one for MAC, the second for IPPC
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+ - interrupts : interrupt used by the controller
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+ - power-domains : a phandle to USB power domain node to control USB's
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+ mtcmos
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+ - vusb33-supply : regulator of USB avdd3.3v
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+
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+ - clocks : a list of phandle + clock-specifier pairs, one for each
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+ entry in clock-names
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+ - clock-names : must contain
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+ "sys_ck": for clock of xHCI MAC
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+ "wakeup_deb_p0": for USB wakeup debounce clock of port0
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+ "wakeup_deb_p0": for USB wakeup debounce clock of port1
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+
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+ - phys : a list of phandle + phy specifier pairs
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+
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+Optional properties:
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+ - mediatek,wakeup-src : 1: ip sleep wakeup mode; 2: line state wakeup
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+ mode;
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+ - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
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+ control register, it depends on "mediatek,wakeup-src".
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+ - vbus-supply : reference to the VBUS regulator;
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+ - usb3-lpm-capable : supports USB3.0 LPM
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+
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+Example:
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+usb30: usb@11270000 {
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+ compatible = "mediatek,mt8173-xhci";
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+ reg = <0 0x11270000 0 0x1000>,
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+ <0 0x11280700 0 0x0100>;
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+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
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+ power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
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+ clocks = <&topckgen CLK_TOP_USB30_SEL>,
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+ <&pericfg CLK_PERI_USB0>,
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+ <&pericfg CLK_PERI_USB1>;
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+ clock-names = "sys_ck",
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+ "wakeup_deb_p0",
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+ "wakeup_deb_p1";
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+ phys = <&phy_port0 PHY_TYPE_USB3>,
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+ <&phy_port1 PHY_TYPE_USB2>;
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+ vusb33-supply = <&mt6397_vusb_reg>;
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+ vbus-supply = <&usb_p1_vbus>;
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+ usb3-lpm-capable;
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+ mediatek,syscon-wakeup = <&pericfg>;
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+ mediatek,wakeup-src = <1>;
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+};
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