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ARM: dts: Explicitly set dr_mode on exynos Peach boards 

In case the optional dr_mode property isn't set in the dwc3 nodes the
the controller will go into OTG mode if both USB host and USB gadget
functionality are enabled in the kernel configuration. Unfortunately
this results in USB not working on exynos5420-peach-pit and
exynos5800-peach-pi with such a kernel configuration unless manually
change the mode. To resolve that explicitly configure the dual role
mode as host.

Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Sjoerd Simons 2014-09-25 17:32:14 +09:00 committed by Kukjin Kim
parent 508423bebc
commit e1c69efc52
3 changed files with 18 additions and 2 deletions
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8
arch/arm/boot/dts/exynos5420-peach-pit.dts
View File

@ -427,6 +427,14 @@
status = "okay";
};
&usbdrd_dwc3_0 {
dr_mode = "host";
};
&usbdrd_dwc3_1 {
dr_mode = "host";
};
&usbdrd_phy0 {
vbus-supply = <&usb300_vbus_reg>;
};

4
arch/arm/boot/dts/exynos5420.dtsi
View File

@ -815,7 +815,7 @@
#size-cells = <1>;
ranges;
dwc3 {
usbdrd_dwc3_0: dwc3 {
compatible = "snps,dwc3";
reg = <0x12000000 0x10000>;
interrupts = <0 72 0>;
@ -841,7 +841,7 @@
#size-cells = <1>;
ranges;
dwc3 {
usbdrd_dwc3_1: dwc3 {
compatible = "snps,dwc3";
reg = <0x12400000 0x10000>;
interrupts = <0 73 0>;

8
arch/arm/boot/dts/exynos5800-peach-pi.dts
View File

@ -425,6 +425,14 @@
status = "okay";
};
&usbdrd_dwc3_0 {
dr_mode = "host";
};
&usbdrd_dwc3_1 {
dr_mode = "host";
};
&usbdrd_phy0 {
vbus-supply = <&usb300_vbus_reg>;
};