forked from Minki/linux
c74732e3c5
add a DT binding documentation of xHCI host controller for the MT8173 SoC from Mediatek. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
52 lines
1.7 KiB
Plaintext
52 lines
1.7 KiB
Plaintext
MT8173 xHCI
|
|
|
|
The device node for Mediatek SOC USB3.0 host controller
|
|
|
|
Required properties:
|
|
- compatible : should contain "mediatek,mt8173-xhci"
|
|
- reg : specifies physical base address and size of the registers,
|
|
the first one for MAC, the second for IPPC
|
|
- interrupts : interrupt used by the controller
|
|
- power-domains : a phandle to USB power domain node to control USB's
|
|
mtcmos
|
|
- vusb33-supply : regulator of USB avdd3.3v
|
|
|
|
- clocks : a list of phandle + clock-specifier pairs, one for each
|
|
entry in clock-names
|
|
- clock-names : must contain
|
|
"sys_ck": for clock of xHCI MAC
|
|
"wakeup_deb_p0": for USB wakeup debounce clock of port0
|
|
"wakeup_deb_p1": for USB wakeup debounce clock of port1
|
|
|
|
- phys : a list of phandle + phy specifier pairs
|
|
|
|
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".
|
|
- vbus-supply : reference to the VBUS regulator;
|
|
- usb3-lpm-capable : supports USB3.0 LPM
|
|
|
|
Example:
|
|
usb30: usb@11270000 {
|
|
compatible = "mediatek,mt8173-xhci";
|
|
reg = <0 0x11270000 0 0x1000>,
|
|
<0 0x11280700 0 0x0100>;
|
|
interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_LOW>;
|
|
power-domains = <&scpsys MT8173_POWER_DOMAIN_USB>;
|
|
clocks = <&topckgen CLK_TOP_USB30_SEL>,
|
|
<&pericfg CLK_PERI_USB0>,
|
|
<&pericfg CLK_PERI_USB1>;
|
|
clock-names = "sys_ck",
|
|
"wakeup_deb_p0",
|
|
"wakeup_deb_p1";
|
|
phys = <&phy_port0 PHY_TYPE_USB3>,
|
|
<&phy_port1 PHY_TYPE_USB2>;
|
|
vusb33-supply = <&mt6397_vusb_reg>;
|
|
vbus-supply = <&usb_p1_vbus>;
|
|
usb3-lpm-capable;
|
|
mediatek,syscon-wakeup = <&pericfg>;
|
|
mediatek,wakeup-src = <1>;
|
|
};
|