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authorKuo-Jung Su <dantesu@faraday-tech.com>2013-05-15 15:29:22 +0800
committerMarek Vasut <marex@denx.de>2013-06-12 22:22:51 +0200
commitaa1550588cc60549bf3a97dc6dccb7de4c022aa6 (patch)
tree650492a00e6157d45caba48bb1320e52b555a1a3 /README
parent1dde1423ad341b5d157ed7ee1f1b136f4ee7dbb4 (diff)
downloadu-boot-aa1550588cc60549bf3a97dc6dccb7de4c022aa6.tar.gz
usb: hub: make minimum power-on delay configurable
This patch makes the minimum power-on delay for USB HUB become configurable. The original design waits at least 100 msec here, but some EHCI controlers(e.g. Faraday EHCI) are known to require much longer delay interval. Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com> CC: Marek Vasut <marex@denx.de>
Diffstat (limited to 'README')
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diff --git a/README b/README
index 33bda8c929..ac1ec44d15 100644
--- 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