efi_fdt.c File Reference

EFI Flattened Device Tree. More...

#include <string.h>
#include <ipxe/fdt.h>
#include <ipxe/efi/efi.h>
#include <ipxe/init.h>

Go to the source code of this file.

Macros
#define	DEVICE_TREE_TABLE_GUID

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
	EFI_USE_TABLE (DEVICE_TREE_TABLE, &efi_fdt, 0)
static void	efi_fdt_init (void)
	Initialise EFI Flattened Device Tree. More...
struct init_fn efi_fdt_init_fn	__init_fn (INIT_EARLY)
	EFI Flattened Device Tree initialisation function. More...

Variables
static struct fdt_header *	efi_fdt
	EFI Flattened Device Tree configuration table. More...

Detailed Description

EFI Flattened Device Tree.

Definition in file efi_fdt.c.

Macro Definition Documentation

DEVICE_TREE_TABLE_GUID

#define DEVICE_TREE_TABLE_GUID

Value:

{ 0xb1b621d5, 0xf19c, 0x41a5,                                   \
          { 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 } }

Definition at line 37 of file efi_fdt.c.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

EFI_USE_TABLE()

EFI_USE_TABLE	(	DEVICE_TREE_TABLE	,
		&	efi_fdt,
		0
	)

efi_fdt_init()

static void efi_fdt_init ( void  )

static

Initialise EFI Flattened Device Tree.

Definition at line 49 of file efi_fdt.c.

                                  {
        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;
        }
}

References DBGC, efi_fdt, rc, register_fdt(), and strerror().

__init_fn()

struct init_fn efi_fdt_init_fn __init_fn

(

INIT_EARLY

)

EFI Flattened Device Tree initialisation function.

Variable Documentation

efi_fdt

struct fdt_header* efi_fdt

static

EFI Flattened Device Tree configuration table.

Definition at line 42 of file efi_fdt.c.

Referenced by efi_fdt_init().