On the RK3399-Q7, the on-module USB3 hub is held in reset at boot-up to save power and needs to be woken up using GPIO4A3.
Note that this is not a negated reset-signal (due to a level shifter being needed for this signal anyway), but a negated enable-signal: to enable, we need to output LOW (i.e. 0)... so we mark this as an ACTIVE_LOW signal.
Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com ---
arch/arm/dts/rk3399-puma.dts | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/arm/dts/rk3399-puma.dts b/arch/arm/dts/rk3399-puma.dts index 5d9dfb5..7009fde 100644 --- a/arch/arm/dts/rk3399-puma.dts +++ b/arch/arm/dts/rk3399-puma.dts @@ -124,7 +124,7 @@ };
&dwc3_typec0 { - status = "okay"; + status = "disabled"; };
&usb_host1_ehci { @@ -136,6 +136,7 @@ };
&dwc3_typec1 { + rockchip,vbus-gpio = <&gpio4 3 GPIO_ACTIVE_LOW>; status = "okay"; };
@@ -182,7 +183,7 @@
compatible = "spi-flash"; reg = <0>; - spi-max-frequency = <5000000>; + spi-max-frequency = <49500000>; spi-cpol; spi-cpha; };