include/grub/arm/linux.h

   1 /* linux.h - ARM linux specific definitions */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2013  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef GRUB_LINUX_CPU_HEADER
  21 #define GRUB_LINUX_CPU_HEADER 1
  22
  23 #define LINUX_ZIMAGE_OFFSET 0x24
  24 #define LINUX_ZIMAGE_MAGIC  0x016f2818
  25
  26 #include "system.h"
  27
  28 #if defined GRUB_MACHINE_UBOOT
  29 # include <grub/uboot/uboot.h>
  30 # define LINUX_ADDRESS        (start_of_ram + 0x8000)
  31 # define LINUX_INITRD_ADDRESS (start_of_ram + 0x02000000)
  32 # define LINUX_FDT_ADDRESS    (LINUX_INITRD_ADDRESS - 0x10000)
  33 # define grub_arm_firmware_get_boot_data grub_uboot_get_boot_data
  34 # define grub_arm_firmware_get_machine_type grub_uboot_get_machine_type
  35 #elif defined GRUB_MACHINE_EFI
  36 # include <grub/efi/efi.h>
  37 # include <grub/machine/loader.h>
  38 /* On UEFI platforms - load the images at the lowest available address not
  39    less than *_PHYS_OFFSET from the first available memory location. */
  40 # define LINUX_PHYS_OFFSET        (0x00008000)
  41 # define LINUX_INITRD_PHYS_OFFSET (LINUX_PHYS_OFFSET + 0x02000000)
  42 # define LINUX_FDT_PHYS_OFFSET    (LINUX_INITRD_PHYS_OFFSET - 0x10000)
  43 # define grub_arm_firmware_get_boot_data (grub_addr_t)grub_efi_get_firmware_fdt
  44 static inline grub_uint32_t
  45 grub_arm_firmware_get_machine_type (void)
  46 {
  47   return GRUB_ARM_MACHINE_TYPE_FDT;
  48 }
  49 #endif
  50
  51 #define FDT_ADDITIONAL_ENTRIES_SIZE     0x300
  52
  53 #endif /* ! GRUB_LINUX_CPU_HEADER */