ARM: dts: imx50: Add PHY node for usbotg and adjust clocks

Even though the ChipIdea USB controller binding[1] doesn't specify the
properties that reference a PHY as required, the Linux driver
requires[2] such a reference.

The clock situation is like on i.MX53: The USB controller is clocked
from IMX5_CLK_USBOH3_GATE and the PHY from IMX5_CLK_USB_PHY1_GATE.

[1]: Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
[2]: Search for EINVAL in drivers/usb/chipidea/ci_hdrc_imx.c

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx50.dtsi b/arch/arm/boot/dts/imx50.dtsi
index 9fb22b16159c88da70173f5d49d78b29985f2a26..5dd61bff3b762f4c67ee8fc8ed8ccb73c7f13210 100644 (file)
--- a/arch/arm/boot/dts/imx50.dtsi
+++ b/arch/arm/boot/dts/imx50.dtsi
@@ -86,6 +86,14 @@ osc {
                };
        };
 
+       usbphy0: usbphy-0 {
+               compatible = "usb-nop-xceiv";
+               clocks = <&clks IMX5_CLK_USB_PHY1_GATE>;
+               clock-names = "main_clk";
+               #phy-cells = <0>;
+               status = "okay";
+       };
+
        soc {
                #address-cells = <1>;
                #size-cells = <1>;
@@ -197,7 +205,8 @@ usbotg: usb@53f80000 {
                                compatible = "fsl,imx50-usb", "fsl,imx27-usb";
                                reg = <0x53f80000 0x0200>;
                                interrupts = <18>;
-                               clocks = <&clks IMX5_CLK_USB_PHY1_GATE>;
+                               clocks = <&clks IMX5_CLK_USBOH3_GATE>;
+                               fsl,usbphy = <&usbphy0>;
                                status = "disabled";
                        };