u-boot/doc/device-tree-bindings/usb/marvell.xhci-usb.txt
Konstantin Porotchkin 81192b7966 mvebu: usb: xhci: Add VBUS regulator supply to the host driver
The USB device should linked to VBUS regulator through "vbus-supply"
DTS property.
This patch adds handling for "vbus-supply" property inside the USB
device entry for turning on the VBUS regulator upon the host adapter probe.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Neta Zur Hershkovits <neta@marvell.com>
Cc: Igal Liberman <igall@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-03-23 08:45:25 +01:00

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Marvell SOC USB controllers
This controller is integrated in Armada 3700/8K.
It uses the same properties as a generic XHCI host controller
Required properties :
- compatible: should be one or more of:
- "marvell,armada3700-xhci", "generic-xhci" for Armada 37xx SoCs
- "marvell,armada-8k-xhci", "generic-xhci" for Armada A8K SoCs
- reg: should contain address and length of the standard XHCI
register set for the device.
- interrupts: one XHCI interrupt should be described here.
Optional properties:
- clocks: phandle to system controller clock driving this unit
- vbus-supply : If present, specifies the fixed regulator to be turned on
for providing power to the USB VBUS rail.
Example:
cpm_usb3_0: usb3@500000 {
compatible = "marvell,armada-8k-xhci",
"generic-xhci";
reg = <0x500000 0x4000>;
interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpm_syscon0 1 22>;
vbus-supply = <&reg_usb3h0_vbus>;
status = "disabled";
};