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.
6 * Copyright (c) 2011 The Chromium OS Authors.
7 * See file CREDITS for list of people who contributed to this
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.
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.
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,
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
39 * and an error condition where action 3 failed would be:
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 */
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 */
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) */
68 BOOTSTAGE_ID_RUN_OS = 15, /* Exiting U-Boot, entering OS */
72 * Board code can implement show_boot_progress() if needed.
74 * @param val Progress state (enum bootstage_id), or -id if an error
77 void show_boot_progress(int val);
78 static inline void show_boot_error(int val)
80 show_boot_progress(-val);