usb: hub: make minimum power-on delay configurable

[people/ms/u-boot.git] / README

diff --git a/README b/README
index 33bda8c929e1e4e35451b399cf9ca353d6a167a9..ac1ec44d155b06620303a6ccf7672fd2f15e5201 100644 (file)
--- a/README
+++ b/README
@@ -1261,6 +1261,9 @@ The following options need to be configured:
                CONFIG_USB_EHCI_TXFIFO_THRESH enables setting of the
                txfilltuning field in the EHCI controller on reset.
 
+               CONFIG_USB_HUB_MIN_POWER_ON_DELAY defines the minimum
+               interval for usb hub power-on delay.(minimum 100msec)
+
 - USB Device:
                Define the below if you wish to use the USB console.
                Once firmware is rebuilt from a serial console issue the