From: Mark Brown <broonie@xxxxxxxxxx>
The Arndale has a SMSC USB3503 connected in hardware only mode like a PHY,
support it using the usb-nop-xceiv binding.
Note that due to a regrettable decision to use a regulator to represent
the reset signal this uses a fixed voltage regulator to do that, there
is a plan to use the reset controller binding once that is merged so it
does not seem worthwhile to fix the usb-nop-xceiv driver at this point.
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
This doesn't 100% work right now since we don't yet have a solution to
ensure that this gets started after the USB controller but those
modifications are small (or can be done at runtime with module loading).
arch/arm/boot/dts/exynos5250-arndale.dts | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index 96d528d..e477e23 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -539,4 +539,22 @@
rtc {
status = "okay";
};
+
+ usb_hub_bus {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ // SMSC USB3503 connected in hardware only mode as a PHY
+ usb_hub: usb_hub {
+ compatible = "smsc,usb3503a";
+
+ reset-gpios = <&gpx3 5 1>;
+ connect-gpios = <&gpd1 7 1>;
+ };
+ };
+
+ usb@12110000 {
+ usb-phy = <&usb2_phy>;
+ };
};
--
1.8.4.rc2
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