diff options
Diffstat (limited to 'Documentation/devicetree/bindings/phy/mxs-usb-phy.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/phy/mxs-usb-phy.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt b/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt index 1d25b04cd05e..415dc0d05805 100644 --- a/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt +++ b/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt @@ -7,6 +7,8 @@ Required properties: * "fsl,imx6sl-usbphy" for imx6sl * "fsl,vf610-usbphy" for Vybrid vf610 * "fsl,imx6sx-usbphy" for imx6sx + * "fsl,imx6ul-usbphy" for imx6ul + * "fsl,imx7ulp-usbphy" for imx7ulp "fsl,imx23-usbphy" is still a fallback for other strings - reg: Should contain registers location and length - interrupts: Should contain phy interrupt @@ -21,6 +23,9 @@ Optional properties: that terminates the DP output signal. Default: 45 - fsl,tx-d-cal: Integer [79-119]. Current trimming value (as a percentage) of the 17.78mA TX reference current. Default: 100 +- tx-d-cal: Try to adjust this value to improve signal quality, and pass + USB Certification, the value is from 0x0 to 0xf, and the register offset + is 0x10 (USBPHY_TX). Example: usbphy1: usbphy@020c9000 { @@ -28,4 +33,5 @@ usbphy1: usbphy@020c9000 { reg = <0x020c9000 0x1000>; interrupts = <0 44 0x04>; fsl,anatop = <&anatop>; + tx-d-cal = <0x5>; }; |