include/initcall.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (c) 2011 The Chromium OS Authors.
   4  */
   5
   6 #ifndef __INITCALL_H
   7 #define __INITCALL_H
   8
   9 typedef int (*init_fnc_t)(void);
  10
  11 #include <log.h>
  12 #ifdef CONFIG_EFI_APP
  13 #include <efi.h>
  14 #endif
  15 #include <asm/global_data.h>
  16
  17 /*
  18  * To enable debugging. add #define DEBUG at the top of the including file.
  19  *
  20  * To find a symbol, use grep on u-boot.map
  21  */
  22 static inline int initcall_run_list(const init_fnc_t init_sequence[])
  23 {
  24         const init_fnc_t *init_fnc_ptr;
  25
  26         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
  27                 unsigned long reloc_ofs = 0;
  28                 int ret;
  29
  30                 /*
  31                  * Sandbox is relocated by the OS, so symbols always appear at
  32                  * the relocated address.
  33                  */
  34                 if (IS_ENABLED(CONFIG_SANDBOX) || (gd->flags & GD_FLG_RELOC))
  35                         reloc_ofs = gd->reloc_off;
  36 #ifdef CONFIG_EFI_APP
  37                 reloc_ofs = (unsigned long)image_base;
  38 #endif
  39                 if (reloc_ofs)
  40                         debug("initcall: %p (relocated to %p)\n",
  41                                         (char *)*init_fnc_ptr - reloc_ofs,
  42                                         (char *)*init_fnc_ptr);
  43                 else
  44                         debug("initcall: %p\n", (char *)*init_fnc_ptr - reloc_ofs);
  45
  46                 ret = (*init_fnc_ptr)();
  47                 if (ret) {
  48                         printf("initcall sequence %p failed at call %p (err=%d)\n",
  49                                init_sequence,
  50                                (char *)*init_fnc_ptr - reloc_ofs, ret);
  51                         return -1;
  52                 }
  53         }
  54         return 0;
  55 }
  56
  57 #endif