Am 26.08.2014 09:30, 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
"explicitly"
> mode as host
>
> Signed-off-by: Sjoerd Simons <sjoerd.simons@xxxxxxxxxxxxxxx>
> ---
> Changes in v2: alphabetically sort the dts entries
>
> 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..29d3a59 100644
> --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
> +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
> @@ -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>;
> };
> diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
> index bfe056d..8617a03 100644
> --- a/arch/arm/boot/dts/exynos5420.dtsi
> +++ b/arch/arm/boot/dts/exynos5420.dtsi
> @@ -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>;
> diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
> index f3ee48b..2064550 100644
> --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
> +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
> @@ -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>;
> };
Thanks,
Reviewed-by: Andreas Färber <afaerber@xxxxxxx>
Andreas
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