coreboot-kgpe-d16/src/mainboard/google/stout/cmos.layout
Nico Huber d23ee5de22 mainboard: Clean up boot_option/reboot_bits in cmos.layout
Since commit 3bfd7cc (drivers/pc80: Rework normal / fallback selector
code) the reboot counter stored in `reboot_bits` isn't reset on a reboot
with `boot_option = 1` any more. Hence, with SKIP_MAX_REBOOT_CNT_CLEAR
enabled, later stages (e.g. payload, OS) have to clear the counter too,
when they want to switch to normal boot. So change the bits to (h)ex
instead of (r)eserved.

To clarify their meaning, rename `reboot_bits` to `reboot_counter`. Also
remove all occurences of the obsolete `last_boot` bit that have sneaked
in again since 24391321 (mainboard: Remove last_boot NVRAM option).

Change-Id: Ib3fc38115ce951b75374e0d1347798b23db7243c
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/16157
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-by: York Yang <york.yang@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-17 00:27:42 +02:00

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3.8 KiB
Text

##
## This file is part of the coreboot project.
##
## Copyright (C) 2007-2008 coresystems GmbH
##
## 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; version 2 of the License.
##
## 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.
##
# -----------------------------------------------------------------
entries
# -----------------------------------------------------------------
# Status Register A
# -----------------------------------------------------------------
# Status Register B
# -----------------------------------------------------------------
# Status Register C
#96 4 r 0 status_c_rsvd
#100 1 r 0 uf_flag
#101 1 r 0 af_flag
#102 1 r 0 pf_flag
#103 1 r 0 irqf_flag
# -----------------------------------------------------------------
# Status Register D
#104 7 r 0 status_d_rsvd
#111 1 r 0 valid_cmos_ram
# -----------------------------------------------------------------
# Diagnostic Status Register
#112 8 r 0 diag_rsvd1
# -----------------------------------------------------------------
0 120 r 0 reserved_memory
#120 264 r 0 unused
# -----------------------------------------------------------------
# RTC_BOOT_BYTE (coreboot hardcoded)
384 1 e 4 boot_option
388 4 h 0 reboot_counter
#390 2 r 0 unused?
# -----------------------------------------------------------------
# coreboot config options: console
392 3 e 5 baud_rate
395 4 e 6 debug_level
#399 1 r 0 unused
# coreboot config options: cpu
400 1 e 2 hyper_threading
#401 7 r 0 unused
# coreboot config options: southbridge
408 1 e 1 nmi
409 2 e 7 power_on_after_fail
411 1 e 8 sata_mode
#412 4 r 0 unused
# coreboot config options: bootloader
#Used by ChromeOS:
416 128 r 0 vbnv
# coreboot config options: northbridge
544 3 e 11 gfx_uma_size
#547 437 r 0 unused
# SandyBridge MRC Scrambler Seed values
896 32 r 0 mrc_scrambler_seed
928 32 r 0 mrc_scrambler_seed_s3
# coreboot config options: check sums
984 16 h 0 check_sum
#1000 24 r 0 amd_reserved
# -----------------------------------------------------------------
enumerations
#ID value text
1 0 Disable
1 1 Enable
2 0 Enable
2 1 Disable
4 0 Fallback
4 1 Normal
5 0 115200
5 1 57600
5 2 38400
5 3 19200
5 4 9600
5 5 4800
5 6 2400
5 7 1200
6 1 Emergency
6 2 Alert
6 3 Critical
6 4 Error
6 5 Warning
6 6 Notice
6 7 Info
6 8 Debug
6 9 Spew
7 0 Disable
7 1 Enable
7 2 Keep
8 0 AHCI
8 1 Compatible
11 0 32M
11 1 64M
11 2 96M
11 3 128M
11 4 160M
11 5 192M
11 6 224M
# -----------------------------------------------------------------
checksums
checksum 392 415 984