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-rw-r--r--EmbeddedPkg/EmbeddedPkg.dec3
1 files changed, 3 insertions, 0 deletions
diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
index 7bcb133..775d863 100644
--- a/EmbeddedPkg/EmbeddedPkg.dec
+++ b/EmbeddedPkg/EmbeddedPkg.dec
@@ -147,6 +147,9 @@
gEmbeddedTokenSpaceGuid.PcdLan9118DxeBaseAddress|0x0|UINT32|0x00000025
gEmbeddedTokenSpaceGuid.PcdLan9118DefaultMacAddress|0x0|UINT64|0x00000026
gEmbeddedTokenSpaceGuid.PcdLan9118DefaultNegotiationTimeout|4000|UINT32|0x00000027
+ # The default feature mask below disables full duplex negotiation, since full
+ # duplex operation is suspected to be broken in the driver.
+ gEmbeddedTokenSpaceGuid.PcdLan9118NegotiationFeatureMask|0xFFFFFEBF|UINT32|0x00000028
#
# Android FastBoot