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[efi] Add flattened device tree header and GUID definitions

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-03-27 12:49:58 +00:00
parent ec8c5a5fbb
commit f0caf90a72
5 changed files with 37 additions and 8 deletions
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24
src/include/ipxe/efi/Guid/Fdt.h Normal file
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@@ -0,0 +1,24 @@
/** @file
*
* Copyright (c) 2013-2014, ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-2-Clause-Patent
*
**/
#ifndef __FDT_H__
#define __FDT_H__
FILE_LICENCE ( BSD2_PATENT );
#define FDT_TABLE_GUID \
{ 0xb1b621d5, 0xf19c, 0x41a5, { 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 } }
extern EFI_GUID gFdtTableGuid;
#define FDT_VARIABLE_GUID \
{ 0x25a4fd4a, 0x9703, 0x4ba9, { 0xa1, 0x90, 0xb7, 0xc8, 0x4e, 0xfb, 0x3e, 0x57 } }
extern EFI_GUID gFdtVariableGuid;
#endif /* __FDT_H__ */

1
src/include/ipxe/efi/efi.h
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@@ -248,6 +248,7 @@ extern EFI_GUID efi_vlan_config_protocol_guid;
extern EFI_GUID efi_acpi_10_table_guid; extern EFI_GUID efi_acpi_10_table_guid;
extern EFI_GUID efi_acpi_20_table_guid; extern EFI_GUID efi_acpi_20_table_guid;
extern EFI_GUID efi_fdt_table_guid;
extern EFI_GUID efi_smbios_table_guid; extern EFI_GUID efi_smbios_table_guid;
extern EFI_GUID efi_smbios2_table_guid; extern EFI_GUID efi_smbios2_table_guid;

4
src/include/ipxe/efi/import.pl
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@@ -71,7 +71,7 @@ sub try_import_file {
push @dependencies, $2; push @dependencies, $2;
} }
# Check for BSD licence statement # Check for BSD licence statement
if ( /^\s*SPDX-License-Identifier: BSD-2-Clause-Patent$/ ) { if ( /\s*SPDX-License-Identifier: BSD-2-Clause-Patent$/ ) {
die "Licence detected after header guard\n" if $guard; die "Licence detected after header guard\n" if $guard;
$licence = "BSD2_PATENT"; $licence = "BSD2_PATENT";
} }
@@ -119,7 +119,7 @@ my $edktop = shift;
# Identify edk import directories # Identify edk import directories
my $edkdirs = [ "MdePkg/Include", "MdeModulePkg/Include", my $edkdirs = [ "MdePkg/Include", "MdeModulePkg/Include",
"NetworkPkg/Include" ]; "NetworkPkg/Include", "EmbeddedPkg/Include" ];
foreach my $edkdir ( @$edkdirs ) { foreach my $edkdir ( @$edkdirs ) {
die "Directory \"$edktop\" does not appear to contain the EFI EDK2 " die "Directory \"$edktop\" does not appear to contain the EFI EDK2 "
."(missing \"$edkdir\")\n" unless -d catdir ( $edktop, $edkdir ); ."(missing \"$edkdir\")\n" unless -d catdir ( $edktop, $edkdir );

9
src/interface/efi/efi_fdt.c
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@@ -25,8 +25,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <string.h> #include <string.h>
#include <ipxe/fdt.h> #include <ipxe/fdt.h>
#include <ipxe/efi/efi.h>
#include <ipxe/init.h> #include <ipxe/init.h>
#include <ipxe/efi/efi.h>
#include <ipxe/efi/Guid/Fdt.h>
/** @file /** @file
* *
@@ -34,13 +35,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
* *
*/ */
#define DEVICE_TREE_TABLE_GUID \
{ 0xb1b621d5, 0xf19c, 0x41a5, \
{ 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 } }
/** EFI Flattened Device Tree configuration table */ /** EFI Flattened Device Tree configuration table */
static struct fdt_header *efi_fdt; static struct fdt_header *efi_fdt;
EFI_USE_TABLE ( DEVICE_TREE_TABLE, &efi_fdt, 0 ); EFI_USE_TABLE ( FDT_TABLE, &efi_fdt, 0 );
/** /**
* Initialise EFI Flattened Device Tree * Initialise EFI Flattened Device Tree

7
src/interface/efi/efi_guid.c
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@@ -85,6 +85,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ipxe/efi/Protocol/UsbIo.h> #include <ipxe/efi/Protocol/UsbIo.h>
#include <ipxe/efi/Protocol/VlanConfig.h> #include <ipxe/efi/Protocol/VlanConfig.h>
#include <ipxe/efi/Guid/Acpi.h> #include <ipxe/efi/Guid/Acpi.h>
#include <ipxe/efi/Guid/Fdt.h>
#include <ipxe/efi/Guid/FileInfo.h> #include <ipxe/efi/Guid/FileInfo.h>
#include <ipxe/efi/Guid/FileSystemInfo.h> #include <ipxe/efi/Guid/FileSystemInfo.h>
#include <ipxe/efi/Guid/GlobalVariable.h> #include <ipxe/efi/Guid/GlobalVariable.h>
@@ -411,6 +412,10 @@ EFI_GUID efi_acpi_10_table_guid
EFI_GUID efi_acpi_20_table_guid EFI_GUID efi_acpi_20_table_guid
= EFI_ACPI_20_TABLE_GUID; = EFI_ACPI_20_TABLE_GUID;
/** FDT table GUID */
EFI_GUID efi_fdt_table_guid
= FDT_TABLE_GUID;
/** SMBIOS table GUID */ /** SMBIOS table GUID */
EFI_GUID efi_smbios_table_guid EFI_GUID efi_smbios_table_guid
= SMBIOS_TABLE_GUID; = SMBIOS_TABLE_GUID;
@@ -524,6 +529,8 @@ static struct efi_well_known_guid efi_well_known_guids[] = {
"Dns6" }, "Dns6" },
{ &efi_dns6_service_binding_protocol_guid, { &efi_dns6_service_binding_protocol_guid,
"Dns6Sb" }, "Dns6Sb" },
{ &efi_fdt_table_guid,
"Fdt" },
{ &efi_global_variable, { &efi_global_variable,
"GlobalVar" }, "GlobalVar" },
{ &efi_graphics_output_protocol_guid, { &efi_graphics_output_protocol_guid,