diff options
Diffstat (limited to 'dts/Bindings/phy/bcm-ns-usb2-phy.txt')
| -rw-r--r-- | dts/Bindings/phy/bcm-ns-usb2-phy.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/dts/Bindings/phy/bcm-ns-usb2-phy.txt b/dts/Bindings/phy/bcm-ns-usb2-phy.txt new file mode 100644 index 0000000000..a7aee9ea89 --- /dev/null +++ b/dts/Bindings/phy/bcm-ns-usb2-phy.txt @@ -0,0 +1,21 @@ +Driver for Broadcom Northstar USB 2.0 PHY + +Required properties: +- compatible: brcm,ns-usb2-phy +- reg: iomem address range of DMU (Device Management Unit) +- reg-names: "dmu", the only needed & supported reg right now +- clocks: USB PHY reference clock +- clock-names: "phy-ref-clk", the only needed & supported clock right now + +To initialize USB 2.0 PHY driver needs to setup PLL correctly. To do this it +requires passing phandle to the USB PHY reference clock. + +Example: + usb2-phy { + compatible = "brcm,ns-usb2-phy"; + reg = <0x1800c000 0x1000>; + reg-names = "dmu"; + #phy-cells = <0>; + clocks = <&genpll BCM_NSP_GENPLL_USB_PHY_REF_CLK>; + clock-names = "phy-ref-clk"; + }; |