include/bootstage.h

   1 /*
   2  * This file implements recording of each stage of the boot process. It is
   3  * intended to implement timing of each stage, reporting this information
   4  * to the user and passing it to the OS for logging / further analysis.
   5  *
   6  * Copyright (c) 2011 The Chromium OS Authors.
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #ifndef _BOOTSTAGE_H
  27 #define _BOOTSTAGE_H
  28
  29 /*
  30  * A list of boot stages that we know about. Each of these indicates the
  31  * state that we are at, and the action that we are about to perform. For
  32  * errors, we issue an error for an item when it fails. Therefore the
  33  * normal sequence is:
  34  *
  35  * progress action1
  36  * progress action2
  37  * progress action3
  38  *
  39  * and an error condition where action 3 failed would be:
  40  *
  41  * progress action1
  42  * progress action2
  43  * progress action3
  44  * error on action3
  45  */
  46 enum bootstage_id {
  47         BOOTSTAGE_ID_START = 0,
  48         BOOTSTAGE_ID_CHECK_MAGIC,       /* Checking image magic */
  49         BOOTSTAGE_ID_CHECK_HEADER,      /* Checking image header */
  50         BOOTSTAGE_ID_CHECK_CHECKSUM,    /* Checking image checksum */
  51         BOOTSTAGE_ID_CHECK_ARCH,        /* Checking architecture */
  52
  53         BOOTSTAGE_ID_CHECK_IMAGETYPE = 5,/* Checking image type */
  54         BOOTSTAGE_ID_DECOMP_IMAGE,      /* Decompressing image */
  55         BOOTSTAGE_ID_KERNEL_LOADED,     /* Kernel has been loaded */
  56         BOOTSTAGE_ID_DECOMP_UNIMPL = 7, /* Odd decompression algorithm */
  57         BOOTSTAGE_ID_CHECK_BOOT_OS,     /* Calling OS-specific boot function */
  58         BOOTSTAGE_ID_BOOT_OS_RETURNED,  /* Tried to boot OS, but it returned */
  59         BOOTSTAGE_ID_CHECK_RAMDISK = 9, /* Checking ram disk */
  60
  61         BOOTSTAGE_ID_RD_MAGIC,          /* Checking ram disk magic */
  62         BOOTSTAGE_ID_RD_HDR_CHECKSUM,   /* Checking ram disk heder checksum */
  63         BOOTSTAGE_ID_RD_CHECKSUM,       /* Checking ram disk checksum */
  64         BOOTSTAGE_ID_COPY_RAMDISK = 12, /* Copying ram disk into place */
  65         BOOTSTAGE_ID_RAMDISK,           /* Checking for valid ramdisk */
  66         BOOTSTAGE_ID_NO_RAMDISK,        /* No ram disk found (not an error) */
  67
  68         BOOTSTAGE_ID_RUN_OS     = 15,   /* Exiting U-Boot, entering OS */
  69
  70         BOOTSTAGE_ID_NEED_RESET = 30,
  71         BOOTSTAGE_ID_POST_FAIL,         /* Post failure */
  72         BOOTSTAGE_ID_POST_FAIL_R,       /* Post failure reported after reloc */
  73
  74         /*
  75          * This set is reported ony by x86, and the meaning is different. In
  76          * this case we are reporting completion of a particular stage.
  77          * This should probably change in he x86 code (which doesn't report
  78          * errors in any case), but discussion this can perhaps wait until we
  79          * have a generic board implementation.
  80          */
  81         BOOTSTAGE_ID_BOARD_INIT_R,      /* We have relocated */
  82         BOOTSTAGE_ID_BOARD_GLOBAL_DATA, /* Global data is set up */
  83
  84         BOOTSTAGE_ID_BOARD_INIT_SEQ,    /* We completed the init sequence */
  85         BOOTSTAGE_ID_BOARD_FLASH,       /* We have configured flash banks */
  86         BOOTSTAGE_ID_BOARD_FLASH_37,    /* In case you didn't hear... */
  87         BOOTSTAGE_ID_BOARD_ENV,         /* Environment is relocated & ready */
  88         BOOTSTAGE_ID_BOARD_PCI,         /* PCI is up */
  89
  90         BOOTSTAGE_ID_BOARD_INTERRUPTS,  /* Exceptions / interrupts ready */
  91         BOOTSTAGE_ID_BOARD_DONE,        /* Board init done, off to main loop */
  92         /* ^^^ here ends the x86 sequence */
  93
  94         /* Boot stages related to loading a kernel from an IDE device */
  95         BOOTSTAGE_ID_IDE_START = 41,
  96         BOOTSTAGE_ID_IDE_ADDR,
  97         BOOTSTAGE_ID_IDE_BOOT_DEVICE,
  98         BOOTSTAGE_ID_IDE_TYPE,
  99
 100         BOOTSTAGE_ID_IDE_PART,
 101         BOOTSTAGE_ID_IDE_PART_INFO,
 102         BOOTSTAGE_ID_IDE_PART_TYPE,
 103         BOOTSTAGE_ID_IDE_PART_READ,
 104         BOOTSTAGE_ID_IDE_FORMAT,
 105
 106         BOOTSTAGE_ID_IDE_CHECKSUM,      /* 50 */
 107         BOOTSTAGE_ID_IDE_READ,
 108
 109         /* Boot stages related to loading a kernel from an NAND device */
 110         BOOTSTAGE_ID_NAND_PART,
 111         BOOTSTAGE_ID_NAND_SUFFIX,
 112         BOOTSTAGE_ID_NAND_BOOT_DEVICE,
 113         BOOTSTAGE_ID_NAND_HDR_READ = 55,
 114         BOOTSTAGE_ID_NAND_AVAILABLE = 55,
 115         BOOTSTAGE_ID_NAND_TYPE = 57,
 116         BOOTSTAGE_ID_NAND_READ,
 117
 118         BOOTSTAGE_ID_IDE_FIT_READ = 140,
 119         BOOTSTAGE_ID_IDE_FIT_READ_OK,
 120
 121         BOOTSTAGE_ID_NAND_FIT_READ = 150,
 122         BOOTSTAGE_ID_NAND_FIT_READ_OK,
 123 };
 124
 125 /*
 126  * Board code can implement show_boot_progress() if needed.
 127  *
 128  * @param val   Progress state (enum bootstage_id), or -id if an error
 129  *              has occurred.
 130  */
 131 void show_boot_progress(int val);
 132 static inline void show_boot_error(int val)
 133 {
 134         show_boot_progress(-val);
 135 }
 136
 137 #endif