| Message ID | 1465465471-28740-15-git-send-email-k.kozlowski@samsung.com (mailing list archive) |
|---|---|
| State | RFC, archived |
| Headers | show |
diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts b/arch/arm/boot/dts/exynos4412-odroidu3.dts index 31cdc036fda4..8fd50061d91b 100644 --- a/arch/arm/boot/dts/exynos4412-odroidu3.dts +++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts @@ -99,11 +99,15 @@ clock-names = "refclk"; clocks = <&pmu_system_controller 0>; refclk-frequency = <24000000>; + + power-sequence; + vdd-supply = <&buck8_reg>; }; &ehci { port@1 { status = "okay"; + usb-pwrseq = <&usb3503>; }; port@2 { status = "okay";
On Odroid U3 (Exynos4412-based) board if USB was initialized by bootloader (in U-Boot "usb start" before tftpboot), the HUB (usb3503) and LAN (smsc95xx) after after successful probing were not visible in the system ("lsusb"). In such case the devices had to be fully reset before configuring. Reset by GPIO (called RESET_N pin) and by RESET field in STCD register in usb3503 HUB are not sufficient. Instead full reset has to be done by disabling and enabling regulator. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> --- arch/arm/boot/dts/exynos4412-odroidu3.dts | 4 ++++ 1 file changed, 4 insertions(+)