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audk/EmbeddedPkg/Drivers/DtPlatformDxe/DtPlatformDxe.h

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EmbeddedPkg: add DT platform driver to select between DT and ACPI As a follow up to the changes proposed by Laszlo to make ACPI and DT mutually exclusive on ArmVirtQemu, this patch proposes a DT platform DXE driver that either installs the NULL protocol PlatformHasAcpiGuid, or installs the FV embedded DTB binary as a configuration table under the appropriate GUID, depending on a preference setting recorded as a UEFI variable, and configurable via a HII screen. The DTB binary can be embedded in the firmware image by adding the following to the platform .fdf file: FILE FREEFORM = 25462CDA-221F-47DF-AC1D-259CFAA4E326 { SECTION RAW = SomePkg/path/to/foo.dtb } Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2017-03-27 11:57:31 +02:00
/** @file
*
* Copyright (c) 2017, Linaro Limited. All rights reserved.
*
EmbeddedPkg: Replace BSD License with BSD+Patent License https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2019-04-04 01:03:38 +02:00
* SPDX-License-Identifier: BSD-2-Clause-Patent
EmbeddedPkg: add DT platform driver to select between DT and ACPI As a follow up to the changes proposed by Laszlo to make ACPI and DT mutually exclusive on ArmVirtQemu, this patch proposes a DT platform DXE driver that either installs the NULL protocol PlatformHasAcpiGuid, or installs the FV embedded DTB binary as a configuration table under the appropriate GUID, depending on a preference setting recorded as a UEFI variable, and configurable via a HII screen. The DTB binary can be embedded in the firmware image by adding the following to the platform .fdf file: FILE FREEFORM = 25462CDA-221F-47DF-AC1D-259CFAA4E326 { SECTION RAW = SomePkg/path/to/foo.dtb } Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2017-03-27 11:57:31 +02:00
*
**/
#ifndef __DT_PLATFORM_DXE_H__
#define __DT_PLATFORM_DXE_H__
#include <Guid/HiiPlatformSetupFormset.h>
#include <Guid/DtPlatformFormSet.h>
#define DT_ACPI_SELECT_DT 0x0
#define DT_ACPI_SELECT_ACPI 0x1
#define DT_ACPI_VARIABLE_NAME L"DtAcpiPref"
typedef struct {
UINT8 Pref;
UINT8 Reserved[3];
} DT_ACPI_VARSTORE_DATA;
#endif