Sometimes a usb tree is not popolated after a system reset. It seems a delay is required after setting the USB ports for the MX.31 before resetting the ehci controller.

Signed-off-by: Stefano Babic sbabic@denx.de --- drivers/usb/host/ehci-mxc.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index af8ee90..8d7b380 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -117,6 +117,8 @@ int ehci_hcd_init(void)

mxc_set_usbcontrol(CONFIG_MXC_USB_PORT, CONFIG_MXC_USB_FLAGS);

+ udelay(10000); + return 0; }