aboutsummaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
authorKonstantin Porotchkin <kostap@marvell.com>2017-02-12 11:10:30 +0200
committerStefan Roese <sr@denx.de>2017-03-23 08:45:25 +0100
commit81192b79661cf2763abecbf3c3b673142ef4a2cd (patch)
tree381d2a6514aa235eacebcb57ac286143c787baf5 /doc
parentc10636344cc666158486d1cf75e592f2fdc69a6e (diff)
downloadu-boot-81192b79661cf2763abecbf3c3b673142ef4a2cd.zip
u-boot-81192b79661cf2763abecbf3c3b673142ef4a2cd.tar.gz
u-boot-81192b79661cf2763abecbf3c3b673142ef4a2cd.tar.bz2
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>
Diffstat (limited to 'doc')
-rw-r--r--doc/device-tree-bindings/usb/marvell.xhci-usb.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/usb/marvell.xhci-usb.txt b/doc/device-tree-bindings/usb/marvell.xhci-usb.txt
new file mode 100644
index 0000000..e042d1b
--- /dev/null
+++ b/doc/device-tree-bindings/usb/marvell.xhci-usb.txt
@@ -0,0 +1,28 @@
+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";
+ };