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MdeModulePkg/XhciPei:1ms delay before access MMIO reg during reset
authorFeng Tian <feng.tian@intel.com>
Wed, 14 Sep 2016 01:48:40 +0000 (09:48 +0800)
committerFeng Tian <feng.tian@intel.com>
Wed, 21 Sep 2016 04:42:06 +0000 (12:42 +0800)
commit1f87985ab7958664a84da78095b5892f88acf3f1
tree857c4f245ae09ade12cc9be55713838d815e7ce2tree
parentdbe10619bc443215477c5c0c4c949410bf68b1eccommit | diff
MdeModulePkg/XhciPei:1ms delay before access MMIO reg during reset

Some XHCI host controllers require to have extra 1ms delay before
accessing any MMIO register during HC reset.

As this delay is not defined by XHCI spec, we use this workaround
to fix the issue.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
MdeModulePkg/Bus/Pci/XhciPei/XhcPeim.c diff | blob | blame | history
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