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EmbeddedPkg/Lan9118Dxe: add mask PCD to disable auto-negotiation features

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Add a PCD to allow the platform to mask in/out specific features of
the LAN9118 device advertised during auto-negotiation.

For example, the Juno ARM Development Platform doesn't support full
duplex mode.  This PCD will allow the platform developer to prevent the
full duplex modes from being advertised.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>

[ardb: change default feature mask so that full duplex is disabled]
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
This commit is contained in:
Ryan Harkin
2016-05-11 09:23:59 +01:00
committed by Ard Biesheuvel
parent 321151fedb
commit 6336850c91
3 changed files with 5 additions and 0 deletions
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EmbeddedPkg/EmbeddedPkg.dec
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@@ -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