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dt-bindings: Add Broadcom STB USB PHY binding document

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Add support for bcm7216 and bcm7211

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Al Cooper 2020-01-03 13:18:04 -05:00 committed by Kishon Vijay Abraham I
parent 94583a4104
commit b11df0c9ef
1 changed files with 56 additions and 13 deletions
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69
Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
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@ -1,30 +1,49 @@
Broadcom STB USB PHY
Required properties:
- compatible: brcm,brcmstb-usb-phy
- reg: two offset and length pairs.
The first pair specifies a manditory set of memory mapped
registers used for general control of the PHY.
The second pair specifies optional registers used by some of
the SoCs that support USB 3.x
- #phy-cells: Shall be 1 as it expects one argument for setting
the type of the PHY. Possible values are:
- PHY_TYPE_USB2 for USB1.1/2.0 PHY
- PHY_TYPE_USB3 for USB3.x PHY
- compatible: should be one of
"brcm,brcmstb-usb-phy"
"brcm,bcm7216-usb-phy"
"brcm,bcm7211-usb-phy"
- reg and reg-names properties requirements are specific to the
compatible string.
"brcm,brcmstb-usb-phy":
- reg: 1 or 2 offset and length pairs. One for the base CTRL registers
and an optional pair for systems with USB 3.x support
- reg-names: not specified
"brcm,bcm7216-usb-phy":
- reg: 3 offset and length pairs for CTRL, XHCI_EC and XHCI_GBL
registers
- reg-names: "ctrl", "xhci_ec", "xhci_gbl"
"brcm,bcm7211-usb-phy":
- reg: 5 offset and length pairs for CTRL, XHCI_EC, XHCI_GBL,
USB_PHY and USB_MDIO registers and an optional pair
for the BDC registers
- reg-names: "ctrl", "xhci_ec", "xhci_gbl", "usb_phy", "usb_mdio", "bdc_ec"
- #phy-cells: Shall be 1 as it expects one argument for setting
the type of the PHY. Possible values are:
- PHY_TYPE_USB2 for USB1.1/2.0 PHY
- PHY_TYPE_USB3 for USB3.x PHY
Optional Properties:
- clocks : clock phandles.
- clock-names: String, clock name.
- interrupts: wakeup interrupt
- interrupt-names: "wakeup"
- brcm,ipp: Boolean, Invert Port Power.
Possible values are: 0 (Don't invert), 1 (Invert)
- brcm,ioc: Boolean, Invert Over Current detection.
Possible values are: 0 (Don't invert), 1 (Invert)
NOTE: one or both of the following two properties must be set
- brcm,has-xhci: Boolean indicating the phy has an XHCI phy.
- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy.
- dr_mode: String, PHY Device mode.
Possible values are: "host", "peripheral ", "drd" or "typec-pd"
If this property is not defined, the phy will default to "host" mode.
- brcm,syscon-piarbctl: phandle to syscon for handling config registers
NOTE: one or both of the following two properties must be set
- brcm,has-xhci: Boolean indicating the phy has an XHCI phy.
- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy.
Example:
@ -41,3 +60,27 @@ usbphy_0: usb-phy@f0470200 {
clocks = <&usb20>, <&usb30>;
clock-names = "sw_usb", "sw_usb3";
};
usb-phy@29f0200 {
reg = <0x29f0200 0x200>,
<0x29c0880 0x30>,
<0x29cc100 0x534>,
<0x2808000 0x24>,
<0x2980080 0x8>;
reg-names = "ctrl",
"xhci_ec",
"xhci_gbl",
"usb_phy",
"usb_mdio";
brcm,ioc = <0x0>;
brcm,ipp = <0x0>;
compatible = "brcm,bcm7211-usb-phy";
interrupts = <0x30>;
interrupt-parent = <&vpu_intr1_nosec_intc>;
interrupt-names = "wake";
#phy-cells = <0x1>;
brcm,has-xhci;
syscon-piarbctl = <&syscon_piarbctl>;
clocks = <&scmi_clk 256>;
clock-names = "sw_usb";
};