plat/common/plat_bl_common.c

   1 /*
   2  * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
   3  *
   4  * SPDX-License-Identifier: BSD-3-Clause
   5  */
   6
   7 #include <arch_helpers.h>
   8 #include <assert.h>
   9 #include <bl_common.h>
  10 #include <debug.h>
  11 #include <errno.h>
  12 #include <platform.h>
  13
  14 /*
  15  * The following platform functions are weakly defined. The Platforms
  16  * may redefine with strong definition.
  17  */
  18 #pragma weak bl2_el3_plat_prepare_exit
  19 #pragma weak plat_error_handler
  20 #pragma weak bl2_plat_preload_setup
  21 #pragma weak bl2_plat_handle_pre_image_load
  22 #pragma weak bl2_plat_handle_post_image_load
  23 #pragma weak plat_try_next_boot_source
  24
  25 void bl2_el3_plat_prepare_exit(void)
  26 {
  27 }
  28
  29 void __dead2 plat_error_handler(int err)
  30 {
  31         while (1)
  32                 wfi();
  33 }
  34
  35 void bl2_plat_preload_setup(void)
  36 {
  37 }
  38
  39 #if LOAD_IMAGE_V2
  40 int bl2_plat_handle_pre_image_load(unsigned int image_id)
  41 {
  42         return 0;
  43 }
  44
  45 int bl2_plat_handle_post_image_load(unsigned int image_id)
  46 {
  47         return 0;
  48 }
  49 #endif
  50
  51 int plat_try_next_boot_source(void)
  52 {
  53         return 0;
  54 }
  55
  56 #if !ERROR_DEPRECATED
  57 #pragma weak bl2_early_platform_setup2
  58
  59 /*
  60  * The following platform API implementation that allow compatibility for
  61  * the older platform APIs.
  62  */
  63 void bl2_early_platform_setup2(u_register_t arg0, u_register_t arg1,
  64                         u_register_t arg2, u_register_t arg3)
  65 {
  66         bl2_early_platform_setup((void *)arg1);
  67 }
  68 #endif