diff options
| author | Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com> | 2019-03-06 20:52:53 +0530 |
|---|---|---|
| committer | Thomas Abraham <thomas.abraham@arm.com> | 2019-07-22 11:47:12 +0530 |
| commit | 601c2f96b8d4a73088c2cfe4903c1daa90622509 (patch) | |
| tree | 2a1f2add2fa166a9aebc707ad32f871a947fcac3 | |
| parent | 4286eb22f4aec33b90574b998a31f8bd34dd4f47 (diff) | |
ArmPlatformPkg: allow platforms to optionally disable HDLCD initializationrefinfra-daniel
Add a new PCD PcdArmHdlcdEnable to enable or disable the HDLCD library
initilization. By default, it is set to TRUE. If set to false in the
platform dsc file, the initilization of HDLCD library will be skipped.
Change-Id: Ia77fe53019fdf7c60764e6814dfead3b5cceb323
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
| -rw-r--r-- | ArmPlatformPkg/ArmPlatformPkg.dec | 5 | ||||
| -rw-r--r-- | ArmPlatformPkg/Library/HdLcd/HdLcd.c | 3 | ||||
| -rw-r--r-- | ArmPlatformPkg/Library/HdLcd/HdLcd.inf | 3 |
3 files changed, 8 insertions, 3 deletions
diff --git a/ArmPlatformPkg/ArmPlatformPkg.dec b/ArmPlatformPkg/ArmPlatformPkg.dec index c8ea183313..c13dbc4dc5 100644 --- a/ArmPlatformPkg/ArmPlatformPkg.dec +++ b/ArmPlatformPkg/ArmPlatformPkg.dec @@ -1,6 +1,6 @@ #/** @file
#
-# Copyright (c) 2011-2018, ARM Limited. All rights reserved.
+# Copyright (c) 2011-2019, ARM Limited. All rights reserved.
# Copyright (c) 2015, Intel Corporation. All rights reserved.
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -108,6 +108,9 @@ ## If set, this will swap settings for HDLCD RED_SELECT and BLUE_SELECT registers
gArmPlatformTokenSpaceGuid.PcdArmHdLcdSwapBlueRedSelect|FALSE|BOOLEAN|0x00000045
+ ## If set to false by the platform, this will disable the HDLCD intialization
+ gArmPlatformTokenSpaceGuid.PcdArmHdLcdEnable|TRUE|BOOLEAN|0x00000046
+
[PcdsFixedAtBuild.common,PcdsDynamic.common]
## PL031 RealTimeClock
gArmPlatformTokenSpaceGuid.PcdPL031RtcBase|0x0|UINT32|0x00000024
diff --git a/ArmPlatformPkg/Library/HdLcd/HdLcd.c b/ArmPlatformPkg/Library/HdLcd/HdLcd.c index 0247057e68..7c10a921cc 100644 --- a/ArmPlatformPkg/Library/HdLcd/HdLcd.c +++ b/ArmPlatformPkg/Library/HdLcd/HdLcd.c @@ -166,7 +166,8 @@ LcdIdentify ( VOID
)
{
- if ((MmioRead32 (HDLCD_REG_VERSION) >> 16) == HDLCD_PRODUCT_ID) {
+ if (FixedPcdGetBool (PcdArmHdLcdEnable) &&
+ (MmioRead32 (HDLCD_REG_VERSION) >> 16) == HDLCD_PRODUCT_ID) {
return EFI_SUCCESS;
}
diff --git a/ArmPlatformPkg/Library/HdLcd/HdLcd.inf b/ArmPlatformPkg/Library/HdLcd/HdLcd.inf index c14f387b57..07a7c11f04 100644 --- a/ArmPlatformPkg/Library/HdLcd/HdLcd.inf +++ b/ArmPlatformPkg/Library/HdLcd/HdLcd.inf @@ -2,7 +2,7 @@ #
# Component description file for HDLCD module
#
-# Copyright (c) 2011-2018, ARM Ltd. All rights reserved.<BR>
+# Copyright (c) 2011-2019, ARM Ltd. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -35,4 +35,5 @@ [FixedPcd]
gArmPlatformTokenSpaceGuid.PcdArmHdLcdBase
gArmPlatformTokenSpaceGuid.PcdArmHdLcdSwapBlueRedSelect
+ gArmPlatformTokenSpaceGuid.PcdArmHdLcdEnable
|