ARM: dts: bcm283x: Add missing USB clock

According to the DWC2 binding an appropriate clock is required.
This clock isn't handled by bcm2835 clock driver, so add a fixed
clock to the bcm283x DT.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index b98252232d20..547280088299 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -289,6 +289,8 @@
                         interrupts = <1 9>;
                         #address-cells = <1>;
                         #size-cells = <0>;
+                        clocks = <&clk_usb>;
+                        clock-names = "otg";
                 };
 
                 v3d: v3d@7ec00000 {
@@ -316,5 +318,12 @@
                         clock-frequency = <19200000>;
                 };
 
+                clk_usb: clock@4 {
+                        compatible = "fixed-clock";
+                        reg = <4>;
+                        #clock-cells = <0>;
+                        clock-output-names = "otg";
+                        clock-frequency = <480000000>;
+                };
         };
 };