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dt-bindings: usb: add bindings doc for HiSilicon STB xHCI host controller

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This commit adds bindings doc for HiSilicon STB xHCI host controller.

Signed-off-by: Jianguo Sun <sunjianguo1@huawei.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jianguo Sun 2018-05-21 16:39:50 +03:00 committed by Greg Kroah-Hartman
parent 4786d2ef45
commit 9e85cdf6e5
1 changed files with 45 additions and 0 deletions
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Documentation/devicetree/bindings/usb/hisilicon,histb-xhci.txt Normal file
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HiSilicon STB xHCI
The device node for HiSilicon STB xHCI host controller
Required properties:
- compatible: should be "hisilicon,hi3798cv200-xhci"
- reg: specifies physical base address and size of the registers
- interrupts : interrupt used by the controller
- clocks: a list of phandle + clock-specifier pairs, one for each
entry in clock-names
- clock-names: must contain
"bus": for bus clock
"utmi": for utmi clock
"pipe": for pipe clock
"suspend": for suspend clock
- resets: a list of phandle and reset specifier pairs as listed in
reset-names property.
- reset-names: must contain
"soft": for soft reset
- phys: a list of phandle + phy specifier pairs
- phy-names: must contain at least one of following:
"inno": for inno phy
"combo": for combo phy
Optional properties:
- usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
- usb3-lpm-capable: determines if platform is USB3 LPM capable
- imod-interval-ns: default interrupt moderation interval is 40000ns
Example:
xhci0: xchi@f98a0000 {
compatible = "hisilicon,hi3798cv200-xhci";
reg = <0xf98a0000 0x10000>;
interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&crg HISTB_USB3_BUS_CLK>,
<&crg HISTB_USB3_UTMI_CLK>,
<&crg HISTB_USB3_PIPE_CLK>,
<&crg HISTB_USB3_SUSPEND_CLK>;
clock-names = "bus", "utmi", "pipe", "suspend";
resets = <&crg 0xb0 12>;
reset-names = "soft";
phys = <&usb2_phy1_port1 0>, <&combphy0 PHY_TYPE_USB3>;
phy-names = "inno", "combo";
};