mirror of
https://github.com/torvalds/linux.git
synced 2024-12-30 23:02:08 +00:00
5669f91a08
It adds the device tree bindings for PCIE/SATA/USB3 combo PHY found on HiSilicon STB SoCs. Signed-off-by: Jianguo Sun <sunjianguo1@huawei.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
60 lines
2.0 KiB
Plaintext
60 lines
2.0 KiB
Plaintext
HiSilicon STB PCIE/SATA/USB3 PHY
|
|
|
|
Required properties:
|
|
- compatible: Should be "hisilicon,hi3798cv200-combphy"
|
|
- reg: Should be the address space for COMBPHY configuration and state
|
|
registers in peripheral controller, e.g. PERI_COMBPHY0_CFG and
|
|
PERI_COMBPHY0_STATE for COMBPHY0 Hi3798CV200 SoC.
|
|
- #phy-cells: Should be 1. The cell number is used to select the phy mode
|
|
as defined in <dt-bindings/phy/phy.h>.
|
|
- clocks: The phandle to clock provider and clock specifier pair.
|
|
- resets: The phandle to reset controller and reset specifier pair.
|
|
|
|
Refer to phy/phy-bindings.txt for the generic PHY binding properties.
|
|
|
|
Optional properties:
|
|
- hisilicon,fixed-mode: If the phy device doesn't support mode select
|
|
but a fixed mode setting, the property should be present to specify
|
|
the particular mode.
|
|
- hisilicon,mode-select-bits: If the phy device support mode select,
|
|
this property should be present to specify the register bits in
|
|
peripheral controller, as a 3 integers tuple:
|
|
<register_offset bit_shift bit_mask>.
|
|
|
|
Notes:
|
|
- Between hisilicon,fixed-mode and hisilicon,mode-select-bits, one and only
|
|
one of them should be present.
|
|
- The device node should be a child of peripheral controller that contains
|
|
COMBPHY configuration/state and PERI_CTRL register used to select PHY mode.
|
|
Refer to arm/hisilicon/hisilicon.txt for the parent peripheral controller
|
|
bindings.
|
|
|
|
Examples:
|
|
|
|
perictrl: peripheral-controller@8a20000 {
|
|
compatible = "hisilicon,hi3798cv200-perictrl", "syscon",
|
|
"simple-mfd";
|
|
reg = <0x8a20000 0x1000>;
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
ranges = <0x0 0x8a20000 0x1000>;
|
|
|
|
combphy0: phy@850 {
|
|
compatible = "hisilicon,hi3798cv200-combphy";
|
|
reg = <0x850 0x8>;
|
|
#phy-cells = <1>;
|
|
clocks = <&crg HISTB_COMBPHY0_CLK>;
|
|
resets = <&crg 0x188 4>;
|
|
hisilicon,fixed-mode = <PHY_TYPE_USB3>;
|
|
};
|
|
|
|
combphy1: phy@858 {
|
|
compatible = "hisilicon,hi3798cv200-combphy";
|
|
reg = <0x858 0x8>;
|
|
#phy-cells = <1>;
|
|
clocks = <&crg HISTB_COMBPHY1_CLK>;
|
|
resets = <&crg 0x188 12>;
|
|
hisilicon,mode-select-bits = <0x0008 11 (0x3 << 11)>;
|
|
};
|
|
};
|