Hi,
Am 22.08.2014 22:57, schrieb Sjoerd Simons:
> In case the optional dr_mode property isn't set in the dwc3 nodes the
> the controller will go into OTG mode iff 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 explicitely configure the dual role
> mode as host
>
> Signed-off-by: Sjoerd Simons <sjoerd.simons@xxxxxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/exynos5420-peach-pit.dts | 8 ++++++++
> arch/arm/boot/dts/exynos5420.dtsi | 4 ++--
> arch/arm/boot/dts/exynos5800-peach-pi.dts | 8 ++++++++
> 3 files changed, 18 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
> index 228a6b1..6c22610 100644
> --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
> +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
> @@ -427,10 +427,18 @@
> status = "okay";
> };
>
> +&usbdrd_dwc3_0 {
> + dr_mode = "host";
> +};
> +
> &usbdrd_phy0 {
> vbus-supply = <&usb300_vbus_reg>;
> };
>
> +&usbdrd_dwc3_1 {
> + dr_mode = "host";
> +};
The sort order should be alphabetical here, which means dwc before phy.
> +
> &usbdrd_phy1 {
> vbus-supply = <&usb301_vbus_reg>;
> };
[...]
> diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
> index f3ee48b..166b352 100644
> --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
> +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
> @@ -425,10 +425,18 @@
> status = "okay";
> };
>
> +&usbdrd_dwc3_0 {
> + dr_mode = "host";
> +};
> +
> &usbdrd_phy0 {
> vbus-supply = <&usb300_vbus_reg>;
> };
>
> +&usbdrd_dwc3_1 {
> + dr_mode = "host";
> +};
Dito.
> +
> &usbdrd_phy1 {
> vbus-supply = <&usb301_vbus_reg>;
> };
Cheers,
Andreas
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