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| author | Evan Lloyd <evan.lloyd@arm.com> | 2016-06-15 13:52:39 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-06-15 16:15:19 +0200 |
| commit | aadc64e6a15a4a71339c393a0eb01587cfbd5eb7 (patch) | |
| tree | 308910a953c5227894895d4210ef922335283b8d /ArmPlatformPkg/Drivers | |
| parent | 9f08a052a3e48295b19da20995a6cab23d31e8cf (diff) | |
| download | edk2-platforms-aadc64e6a15a4a71339c393a0eb01587cfbd5eb7.tar.xz | |
ArmPlatformPkg: Update PL011 Serial PCDs to Fixed PCDs
The PCDs used in the PL011 UART Driver and Serial Port Library are
inherently "fixed at build". This change updates the source to use
Fixed PCDs for these values. This improves clarity and efficiency.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Evan Lloyd <evan.lloyd@arm.com>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
Diffstat (limited to 'ArmPlatformPkg/Drivers')
| -rw-r--r-- | ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c | 10 | ||||
| -rw-r--r-- | ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.inf | 4 |
2 files changed, 7 insertions, 7 deletions
diff --git a/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c b/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c index ab00cae26d..d0f9381e9e 100644 --- a/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c +++ b/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.c @@ -168,17 +168,17 @@ PL011UartInitializePort ( //
// If PL011 Integer value has been defined then always ignore the BAUD rate
- if (PcdGet32 (PL011UartInteger) != 0) {
- MmioWrite32 (UartBase + UARTIBRD, PcdGet32 (PL011UartInteger));
- MmioWrite32 (UartBase + UARTFBRD, PcdGet32 (PL011UartFractional));
+ if (FixedPcdGet32 (PL011UartInteger) != 0) {
+ MmioWrite32 (UartBase + UARTIBRD, FixedPcdGet32 (PL011UartInteger));
+ MmioWrite32 (UartBase + UARTFBRD, FixedPcdGet32 (PL011UartFractional));
} else {
// If BAUD rate is zero then replace it with the system default value
if (*BaudRate == 0) {
- *BaudRate = PcdGet32 (PcdSerialBaudRate);
+ *BaudRate = FixedPcdGet32 (PcdSerialBaudRate);
ASSERT (*BaudRate != 0);
}
- Divisor = (PcdGet32 (PL011UartClkInHz) * 4) / *BaudRate;
+ Divisor = (FixedPcdGet32 (PL011UartClkInHz) * 4) / *BaudRate;
MmioWrite32 (UartBase + UARTIBRD, Divisor >> FRACTION_PART_SIZE_IN_BITS);
MmioWrite32 (UartBase + UARTFBRD, Divisor & FRACTION_PART_MASK);
}
diff --git a/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.inf b/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.inf index 18df7c9fb9..5afce36d39 100644 --- a/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.inf +++ b/ArmPlatformPkg/Drivers/PL011Uart/PL011Uart.inf @@ -2,7 +2,7 @@ #
# Component description file for PL011Uart module
#
-# Copyright (c) 2011-2013, ARM Ltd. All rights reserved.<BR>
+# Copyright (c) 2011-2016, ARM Ltd. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -34,7 +34,7 @@ MdeModulePkg/MdeModulePkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
-[Pcd]
+[FixedPcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdSerialBaudRate
gArmPlatformTokenSpaceGuid.PL011UartClkInHz
|