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authorJim Lin <jilin@nvidia.com>2014-09-16 16:39:08 +0800
committerPatrick Georgi <pgeorgi@google.com>2015-03-21 01:42:59 +0100
commit627de92d0a7d4a7b3c4f404810bc8157c359c155 (patch)
tree904db79e41aecb552de397d56e876ed574852ecf /src/mainboard/gigabyte/ma785gm
parent16713d7a23aa8cdf9ff432a881ba9066c9859992 (diff)
downloadcoreboot-627de92d0a7d4a7b3c4f404810bc8157c359c155.tar.xz
libpayload ehci: Use 64-byte aligned data structures for periodic transfers
Chapter 3.1 "Periodic Frame List" of EHCI 1.0 specification says "Frame List Link pointers always reference memory objects that are 32-byte aligned." jwerner@chromium.org suggests setting it to be 64-byte aligned for consistency with other EHCI queue structures. BUG=chrome-os-partner:31993 TEST=Tested on nyan platform. Before adding patch, USB keyboard behind an external hub is not working to switch between "Default Locale" and "English" (after pressing ESC+REFRESH+POWER on embedded keyboard and later Left/Right-Arrow key on USB keyboard). Change-Id: Ie6259f2df20ae2618c2074e831fad087f227091d Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 23fc02e6ba3b17be4eaf18810ec6fc0d9c0e0b9a Original-Change-Id: If52ddc43ebd5d509c19f104928dced5bd09b1706 Original-Signed-off-by: Jim Lin <jilin@nvidia.com> Original-Reviewed-on: https://chromium-review.googlesource.com/218403 Original-Reviewed-by: Tom Warren <twarren@nvidia.com> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/8738 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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