Re: [U-Boot] [PATCH 2/4] rockchip: dts: rk3399-puma: release reset of on-module USB3 hub via vbus-gpio

2017-06-05 Thread sjg
On 31 May 2017 at 10:17, Philipp Tomsich wrote: > 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

Re: [U-Boot] [PATCH 2/4] rockchip: dts: rk3399-puma: release reset of on-module USB3 hub via vbus-gpio

2017-06-01 Thread Simon Glass
On 31 May 2017 at 10:17, Philipp Tomsich wrote: > 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

[U-Boot] [PATCH 2/4] rockchip: dts: rk3399-puma: release reset of on-module USB3 hub via vbus-gpio

2017-05-31 Thread Philipp Tomsich
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.