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author | Julius Werner <jwerner@chromium.org> | 2013-07-23 12:45:18 -0700 |
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committer | Patrick Georgi <patrick@georgi-clan.de> | 2013-12-21 07:39:19 +0100 |
commit | 52e3f449ac06e1f3e8a40647649fa2f94dea1c0b (patch) | |
tree | eb35f9dd51f235116a108d037b543eef44bccfab /src/mainboard/google/slippy/acpi/haswell_pci_irqs.asl | |
parent | 68a8431fcf8ce1fdf390f800b311120f37a5598d (diff) | |
download | coreboot-52e3f449ac06e1f3e8a40647649fa2f94dea1c0b.tar.xz |
libpayload: Increase USB EHCI transfer timeout
The EHCI driver defines a maximum transfer timeout of two seconds. The
comments state that during tests the maximum amount of required transfer
time was for the SCSI TEST_UNIT_READY command on certain devices. We
have now observed a USB device (Patriot Memory 13fe:3100) that can NAK
this command for slightly more than two seconds. It will also completely
fail if the timeout hits, since it gets confused by the subsequent CSW
retry/recovery mechanism and starts producing babble errors. This patch
increases the timeout to three seconds to circumvent this problem.
To test, boot a Falco from a red-black RageXT USB stick.
Change-Id: I3c4fef468fb16eacc5a487d76d025a78fb450e27
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/63095
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Sameer Nanda <snanda@chromium.org>
Reviewed-on: http://review.coreboot.org/4379
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/mainboard/google/slippy/acpi/haswell_pci_irqs.asl')
0 files changed, 0 insertions, 0 deletions