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ArmPlatformPkg/PL011UartLib: Check PID2 if FiFoDepth is zero

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PL011UartLib determines its FIFO depth based on the PID2 value but
the register PID2 is not mandatory as per the SBSA spec.
This change won't check PID2 if PcdUartDefaultReceiveFifoDepth is set
to a value > 0.

Signed-off-by: Irene Park <ipark@nvidia.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
This commit is contained in:
Irene Park
2020-06-09 13:56:31 -04:00
committed by mergify[bot]
parent 00217f1919
commit c8edb70945
2 changed files with 8 additions and 3 deletions
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1
ArmPlatformPkg/Library/PL011UartLib/PL011UartLib.inf
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@@ -30,6 +30,7 @@
ArmPlatformPkg/ArmPlatformPkg.dec
[FixedPcd]
gEfiMdePkgTokenSpaceGuid.PcdUartDefaultReceiveFifoDepth
gEfiMdeModulePkgTokenSpaceGuid.PcdSerialBaudRate
gArmPlatformTokenSpaceGuid.PL011UartInteger