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ipxe/src/drivers
Michael Brown 32d20fdd7e [xhci] Delay after (possibly) forcing port link state to RxDetect
Some xHCI controllers (observed with a Renesas Electronics PCIe USB3
card) seem to require a delay after forcing the link state of USB3
ports to RxDetect.  Omitting this delay causes strange behaviour
including system lockups.

Add an unconditional 20ms delay after writing the port link states.
This seems to be sufficient to avoid the problem.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2015-02-11 11:18:35 +00:00
..
bitbash [bitbash] Add optional open() and close() methods for bit-bashing interfaces 2012-08-24 17:26:10 +01:00
block [iscsi] Include IP address origin in iBFT 2014-06-12 17:09:16 +01:00
bus [usb] Allow usb_stream() to enforce a terminating short packet 2015-02-10 13:49:27 +00:00
infiniband [hermon] Use PCI VPD for non-volatile option storage 2012-10-25 08:24:00 -07:00
linux [linux] Apply MAC address prior to registering network device 2013-09-03 02:02:58 +01:00
net [ecm] Add support for CDC-ECM USB Ethernet devices 2015-02-10 13:49:27 +00:00
nvs [legal] Update FSF mailing address in GPL licence texts 2012-07-20 19:55:45 +01:00
usb [xhci] Delay after (possibly) forcing port link state to RxDetect 2015-02-11 11:18:35 +00:00