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/*
* This file implements recording of each stage of the boot process. It is
* intended to implement timing of each stage, reporting this information
* to the user and passing it to the OS for logging / further analysis.
*
* Copyright (c) 2011 The Chromium OS Authors.
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _BOOTSTAGE_H
#define _BOOTSTAGE_H
/*
* A list of boot stages that we know about. Each of these indicates the
* state that we are at, and the action that we are about to perform. For
* errors, we issue an error for an item when it fails. Therefore the
* normal sequence is:
*
* progress action1
* progress action2
* progress action3
*
* and an error condition where action 3 failed would be:
*
* progress action1
* progress action2
* progress action3
* error on action3
*/
enum bootstage_id {
BOOTSTAGE_ID_START = 0,
BOOTSTAGE_ID_CHECK_MAGIC, /* Checking image magic */
BOOTSTAGE_ID_CHECK_HEADER, /* Checking image header */
BOOTSTAGE_ID_CHECK_CHECKSUM, /* Checking image checksum */
BOOTSTAGE_ID_CHECK_ARCH, /* Checking architecture */
BOOTSTAGE_ID_CHECK_IMAGETYPE = 5,/* Checking image type */
BOOTSTAGE_ID_DECOMP_IMAGE, /* Decompressing image */
BOOTSTAGE_ID_KERNEL_LOADED, /* Kernel has been loaded */
BOOTSTAGE_ID_DECOMP_UNIMPL = 7, /* Odd decompression algorithm */
BOOTSTAGE_ID_CHECK_BOOT_OS, /* Calling OS-specific boot function */
BOOTSTAGE_ID_BOOT_OS_RETURNED, /* Tried to boot OS, but it returned */
BOOTSTAGE_ID_CHECK_RAMDISK = 9, /* Checking ram disk */
BOOTSTAGE_ID_RD_MAGIC, /* Checking ram disk magic */
BOOTSTAGE_ID_RD_HDR_CHECKSUM, /* Checking ram disk heder checksum */
BOOTSTAGE_ID_RD_CHECKSUM, /* Checking ram disk checksum */
BOOTSTAGE_ID_COPY_RAMDISK = 12, /* Copying ram disk into place */
BOOTSTAGE_ID_RAMDISK, /* Checking for valid ramdisk */
BOOTSTAGE_ID_NO_RAMDISK, /* No ram disk found (not an error) */
BOOTSTAGE_ID_RUN_OS = 15, /* Exiting U-Boot, entering OS */
BOOTSTAGE_ID_NEED_RESET = 30,
BOOTSTAGE_ID_POST_FAIL, /* Post failure */
BOOTSTAGE_ID_POST_FAIL_R, /* Post failure reported after reloc */
/*
* This set is reported ony by x86, and the meaning is different. In
* this case we are reporting completion of a particular stage.
* This should probably change in he x86 code (which doesn't report
* errors in any case), but discussion this can perhaps wait until we
* have a generic board implementation.
*/
BOOTSTAGE_ID_BOARD_INIT_R, /* We have relocated */
BOOTSTAGE_ID_BOARD_GLOBAL_DATA, /* Global data is set up */
BOOTSTAGE_ID_BOARD_INIT_SEQ, /* We completed the init sequence */
BOOTSTAGE_ID_BOARD_FLASH, /* We have configured flash banks */
BOOTSTAGE_ID_BOARD_FLASH_37, /* In case you didn't hear... */
BOOTSTAGE_ID_BOARD_ENV, /* Environment is relocated & ready */
BOOTSTAGE_ID_BOARD_PCI, /* PCI is up */
BOOTSTAGE_ID_BOARD_INTERRUPTS, /* Exceptions / interrupts ready */
BOOTSTAGE_ID_BOARD_DONE, /* Board init done, off to main loop */
/* ^^^ here ends the x86 sequence */
};
/*
* Board code can implement show_boot_progress() if needed.
*
* @param val Progress state (enum bootstage_id), or -id if an error
* has occurred.
*/
void show_boot_progress(int val);
static inline void show_boot_error(int val)
{
show_boot_progress(-val);
}
#endif
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