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| author | Dinh Nguyen <dinguyen@opensource.altera.com> | 2016-03-04 18:57:04 -0600 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2016-03-05 02:21:36 +0100 |
| commit | b5ab663a6956e47180706b897bc9567335257d58 (patch) | |
| tree | 6771f5cec4271c7b58375fea745a85bf081771b5 /drivers/usb/host/dwc2.c | |
| parent | 8038f6d2881d58f5322109a2f5ec2de5aaa6fc30 (diff) | |
| download | u-boot-b5ab663a6956e47180706b897bc9567335257d58.tar.gz u-boot-b5ab663a6956e47180706b897bc9567335257d58.tar.bz2 u-boot-b5ab663a6956e47180706b897bc9567335257d58.zip | |
usb: dwc2: disable erroneous overcurrent condition
For the case where an external VBUS is used, we should enable the external
VBUS comparator in the driver. This would prevent an unnecessary overcurrent
error which would then disable the host port.
The overcurrent condition was happening on the SoCFPGA Cyclone5 devkit, thus
USB was not working on the devkit. This patch fixes that problem.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Diffstat (limited to 'drivers/usb/host/dwc2.c')
| -rw-r--r-- | drivers/usb/host/dwc2.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index c6727c381c..b2f4bc685a 100644 --- a/drivers/usb/host/dwc2.c +++ b/drivers/usb/host/dwc2.c @@ -263,7 +263,9 @@ static void dwc_otg_core_init(struct dwc2_core_regs *regs) /* Program the ULPI External VBUS bit if needed */ #ifdef CONFIG_DWC2_PHY_ULPI_EXT_VBUS - usbcfg |= DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV; + usbcfg |= (DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV | + DWC2_GUSBCFG_ULPI_INT_VBUS_INDICATOR | + DWC2_GUSBCFG_INDICATOR_PASSTHROUGH); #else usbcfg &= ~DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV; #endif |