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authorMark Brown <broonie@kernel.org>2020-12-28 17:16:53 +0300
committerMark Brown <broonie@kernel.org>2020-12-28 17:16:53 +0300
commitf81325a05e9317f09a2e4ec57a52e4e49eb42b54 (patch)
treea5a91589c9ef8e212f2899f1462cfb5c3f0130ef /Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.txt
parent671ee4db952449acde126965bf76817a3159040d (diff)
parent5c8fe583cce542aa0b84adc939ce85293de36e5e (diff)
downloadlinux-f81325a05e9317f09a2e4ec57a52e4e49eb42b54.tar.xz
Merge tag 'v5.11-rc1' into asoc-5.11
Linux 5.11-rc1
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-STMicroelectronics STM32 USB HS PHY controller
-
-The STM32 USBPHYC block contains a dual port High Speed UTMI+ PHY and a UTMI
-switch. It controls PHY configuration and status, and the UTMI+ switch that
-selects either OTG or HOST controller for the second PHY port. It also sets
-PLL configuration.
-
-USBPHYC
- |_ PLL
- |
- |_ PHY port#1 _________________ HOST controller
- | _ |
- | / 1|________________|
- |_ PHY port#2 ----| |________________
- | \_0| |
- |_ UTMI switch_______| OTG controller
-
-
-Phy provider node
-=================
-
-Required properties:
-- compatible: must be "st,stm32mp1-usbphyc"
-- reg: address and length of the usb phy control register set
-- clocks: phandle + clock specifier for the PLL phy clock
-- #address-cells: number of address cells for phys sub-nodes, must be <1>
-- #size-cells: number of size cells for phys sub-nodes, must be <0>
-
-Optional properties:
-- assigned-clocks: phandle + clock specifier for the PLL phy clock
-- assigned-clock-parents: the PLL phy clock parent
-- resets: phandle + reset specifier
-
-Required nodes: one sub-node per port the controller provides.
-
-Phy sub-nodes
-==============
-
-Required properties:
-- reg: phy port index
-- phy-supply: phandle to the regulator providing 3V3 power to the PHY,
- see phy-bindings.txt in the same directory.
-- vdda1v1-supply: phandle to the regulator providing 1V1 power to the PHY
-- vdda1v8-supply: phandle to the regulator providing 1V8 power to the PHY
-- #phy-cells: see phy-bindings.txt in the same directory, must be <0> for PHY
- port#1 and must be <1> for PHY port#2, to select USB controller
-
-
-Example:
- usbphyc: usb-phy@5a006000 {
- compatible = "st,stm32mp1-usbphyc";
- reg = <0x5a006000 0x1000>;
- clocks = <&rcc_clk USBPHY_K>;
- resets = <&rcc_rst USBPHY_R>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- usbphyc_port0: usb-phy@0 {
- reg = <0>;
- phy-supply = <&vdd_usb>;
- vdda1v1-supply = <&reg11>;
- vdda1v8-supply = <&reg18>
- #phy-cells = <0>;
- };
-
- usbphyc_port1: usb-phy@1 {
- reg = <1>;
- phy-supply = <&vdd_usb>;
- vdda1v1-supply = <&reg11>;
- vdda1v8-supply = <&reg18>
- #phy-cells = <1>;
- };
- };