diff options
| -rw-r--r-- | arch/arm/mach-sunxi/usb_phy.c | 7 | ||||
| -rw-r--r-- | board/sunxi/Kconfig | 9 |
2 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/mach-sunxi/usb_phy.c b/arch/arm/mach-sunxi/usb_phy.c index b258ce4443..f9993d2875 100644 --- a/arch/arm/mach-sunxi/usb_phy.c +++ b/arch/arm/mach-sunxi/usb_phy.c @@ -85,6 +85,8 @@ static struct sunxi_usb_phy { #endif }; +static int initial_usb_scan_delay = CONFIG_INITIAL_USB_SCAN_DELAY; + static int get_vbus_gpio(int index) { switch (index) { @@ -269,6 +271,11 @@ void sunxi_usb_phy_power_on(int index) { struct sunxi_usb_phy *phy = &sunxi_usb_phy[index]; + if (initial_usb_scan_delay) { + mdelay(initial_usb_scan_delay); + initial_usb_scan_delay = 0; + } + phy->power_on_count++; if (phy->power_on_count != 1) return; diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig index 464fa0fa58..fa7872031b 100644 --- a/board/sunxi/Kconfig +++ b/board/sunxi/Kconfig @@ -312,6 +312,15 @@ config MMC_SUNXI_SLOT_EXTRA slot or emmc on mmc1 - mmc3. Setting this to 1, 2 or 3 will enable support for this. +config INITIAL_USB_SCAN_DELAY + int "delay initial usb scan by x ms to allow builtin devices to init" + default 0 + ---help--- + Some boards have on board usb devices which need longer than the + USB spec's 1 second to connect from board powerup. Set this config + option to a non 0 value to add an extra delay before the first usb + bus scan. + config USB0_VBUS_PIN string "Vbus enable pin for usb0 (otg)" default "" |
