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- /*
- * Copyright (C) 2019 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- #include <string.h>
- #include <ipxe/fdt.h>
- #include <ipxe/efi/efi.h>
- #include <ipxe/init.h>
-
- /** @file
- *
- * EFI Flattened Device Tree
- *
- */
-
- #define DEVICE_TREE_TABLE_GUID \
- { 0xb1b621d5, 0xf19c, 0x41a5, \
- { 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 } }
-
- /** EFI Flattened Device Tree configuration table */
- static struct fdt_header *efi_fdt;
- EFI_USE_TABLE ( DEVICE_TREE_TABLE, &efi_fdt, 0 );
-
- /**
- * Initialise EFI Flattened Device Tree
- *
- */
- static void efi_fdt_init ( void ) {
- int rc;
-
- /* Do nothing if no configuration table is present */
- if ( ! efi_fdt ) {
- DBGC ( &efi_fdt, "EFIFDT has no configuration table\n" );
- return;
- }
- DBGC ( &efi_fdt, "EFIFDT configuration table at %p\n", efi_fdt );
-
- /* Register device tree */
- if ( ( rc = register_fdt ( efi_fdt ) ) != 0 ) {
- DBGC ( &efi_fdt, "EFIFDT could not register: %s\n",
- strerror ( rc ) );
- return;
- }
- }
-
- /** EFI Flattened Device Tree initialisation function */
- struct init_fn efi_fdt_init_fn __init_fn ( INIT_EARLY ) = {
- .initialise = efi_fdt_init,
- };
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