Broadwell has these devices, so add them to Lynx Point as well. This is
done in preparation to have Broadwell boards use Lynx Point ACPI code.
Change-Id: Id66f169070cdfe3a6d166ca18916d4ddaf4a5fea
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46959
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Code was copy-pasted from older chips and has no effect on ibexpeak.
Change-Id: I3c5b2b8e4aa6211975c3e3dc1d64432886ef9352
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47864
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The register is 32 bits wide, so do not read 16 bits out of it.
LynxPoint PCH reference code version 1.9.1 always uses 32-bit accesses.
Change-Id: I18fbba0603579417e09ae4eb4eb273f7fcd903fc
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47098
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Move `mainboard_gpio_map` declaration inside header and reorder some
function declarations. This is to align the header with Broadwell.
Change-Id: I436d7fdabf8d574e5dd2787fb6097f384cc8e453
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50065
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The only difference between ME7 and ME8 is the MKHI message handling.
Remove duplicated code, and also clean up includes.
Change-Id: Ia44eb29d3509eb4208ba2aed9e0cf7e8f8d2c41a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49992
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Evgeny Zinoviev <me@ch1p.io>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This allows dropping some preprocessor usage. The `mkhi_end_of_post`
static functions had to be renamed to avoid a name clash. A follow-up
will tidy up the code in me_smm.c to reduce some duplication.
Change-Id: I6357fed3540be87f42d1fd59534666b9092d0652
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49991
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Evgeny Zinoviev <me@ch1p.io>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This allows us to get rid of the `__unused` attributes. Subsequent
commits will separate ramstage and SMM code into separate files.
Tested with BUILD_TIMELESS=1, Asus P8Z77-V LX2 remains identical.
Change-Id: I1aaef5aa23561bee04f8dd9ddca66738bca91bb4
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49990
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Evgeny Zinoviev <me@ch1p.io>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Platforms with bd82x6x do not initialise OSYS, so HPET is
always hidden.
The two boards lenovo/x201 and packardbell/ms2290 using
sb/intel/ibexpeak but still including <bd8x62x/acpi/lpc.asl>
initialised OSYS using _OSI() method and showed HPET selectively.
Change-Id: I02fffd439be2a5a9d22afd67e68abce888361214
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49486
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Based on the detected OS the HPET ACPI device needs to
be hidden sometimes.
Change-Id: I4c6f87f30ea0de5c073b1fcf57794bb9e19d4d91
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49483
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The southbridge common SPI support already does this.
Tested on Asrock B85M Pro4, internal flashing and MRC cache still work.
Change-Id: I7ce0ca584cd3d42a10cdb74f45742f1eadc01bfa
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50479
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Not all TCO status bits have a corresponding enable bit. Masking out the
status register with the enable register causes these events to be lost.
Tested on Asrock B85M Pro4, BIOSWR_STS events are now detected.
Change-Id: I49abb5a4a99e943e57e0aaa6f06ff63bdf957cd3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50478
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Lynxpoint PCH-H does not have SerialIO, so do not generate its SSDT.
Change-Id: Ie816ebd470df93a45826498bf21be59ff0a813bf
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50477
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
IASL complains that creation of named objects within a method is highly
inefficient. Avoid this by moving these named objects out of the method.
Change-Id: Iabfb20dcb3f655658844d99ab7a3b479684d9d19
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50475
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Was copy-pasted from bd82x6x and no mainboard actually needs it.
The few globals moved outside the GNVS will be removed, relocated or
replaced with acpigen later.
Change-Id: I590a355f1bd1e54365b2e329cfdc62384446a15c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49280
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Was copy-pasted from i82801ix and no mainboard actually needs it.
Change-Id: I400424540b52dc5d43aba15720b18ad57ea2ebda
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49279
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Variable PICM was not inside GNVS region and can use a static
initialisation value.
For most AMD platforms PICM default changes from 1 to 0.
Fix comments about PICM==0 used to indicate use of i8259 PIC for
interrupt delivery.
Change-Id: I525ef8353514ec32941c4d0c37cab38aa320cb20
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49905
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The value should be set by OSPM using some combination of
_OSI() queris in the \_SB._INI() method.
To maintain previous behaviour with this commit, boards where
GNVS osys initialisation was removed now do the same in ASL.
Change-Id: Id4957b12a72fbf7fa988e7ff039e47abcc072e1c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49353
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Initialize variable to 1 to indicate AC power supply.
If platform has EC it will set this correctly based on
whether plugged on the charger or not.
Change-Id: I3f834cf7563b9e512fcab34cdb7a27a9f0fd31c0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49352
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
- Add support for ME Soft Temporary Disable Mode. In this mode, ME
doesn't load its kernel and freezes at Bring UP (BUP) phase. This mode
is saved in ME NVRAM (and thus will remain for next reboots and
poweroffs).
- Add support of new CMOS option for Sandy Bridge and Ivy Bridge
ThinkPads.
HOW TO USE
To disable ME:
1. nvramtool -w me_state=Disabled
2. reboot
To enable it back:
1. nvramtool -w me_state=Normal
2. reboot
To check current status:
intelmetool -m
Tested on ThinkPad X230 and ThinkPad X220.
BACKGROUND
There's no Intel documentation that would explain how this should be
implemented, in public. Working binary sequence for MKHI command to put
ME in Soft Temporary Disable Mode, as well as a way to bring ME out of
it (by writing to H_GS register), was found and published by researchers
from PT Security:
1. To disable ME, BIOS issues the disable command (before End of Post)
and reboots. ME is supposed to be disabled on the next boot after
DID (DRAM Init Done).
My numerous tests show that issuing the command and rebooting is not
enough. If we reboot too early, ME will not be disabled. Apparently,
it is doing something in background after receiving the command. It
works with a delay of 500-1000 ms.
I also tried to dump all known (documented) registers, such as GMES
and HFS, before and during the next 2 seconds after execution of the
disable command to find a possible indication that something's
changed in ME and we're ready to reboot. Found nothing
unfortunately.
2. To enable ME back, host writes value 0x20000000 to H_GS.
PT slides don't contain any more information on it, but my tests
show, that after writing this value, GMES[31:28] is changing from
0x01 (BUP phase) to 0x03 (Policy Module) to 0x06 (Host
Communication). Then, after some more time, fw_init_complete bit of
HFS becomes 1.
This means that ME starts loading its kernel immediately, without
reboot.
On the other hand, Lenovo BIOS clearly perform a reboot after
enabling it (one reboot after saving the settings, then ThinkPad
logo appears, and then one more reboot). I'm assuming we have to
reset too.
Change-Id: Ic01526c9731cbef4e8552bbc352133a2415787c2
Signed-off-by: Evgeny Zinoviev <me@ch1p.io>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37115
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
These accessors can be reused for several other northbridges.
Tested with BUILD_TIMELESS=1, Roda RK9 remains identical.
Change-Id: Ia16ccc63dddebf938f4e9a7f5518e4d25d3e7e66
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49748
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
- Add Kconfig option to hide the Management Engine Interface device so
the OS doesn't try to access it, if the Management Engine is in an
inoperable mode, e.g. if me_cleaner is used.
- Also hide the MEI if the ME is in Soft Temp Disable mode.
Change-Id: Ie4a35bf5fc196e0a02b7591cdb8633d38f0c7f3e
Signed-off-by: James Ye <jye836@gmail.com>
Signed-off-by: Evgeny Zinoviev <me@ch1p.io>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39074
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
For the moment, these are most not used but become a necessity
for a unified <soc/nvs.h> approach.
They would be required for the implementation of _SWS method
for OSPM to determine the reason for system waking up. The related
hardware registers are present with these platforms.
It's expected that ACPI power-management related GNVS entries are
grouped together to form a single struct in later works.
Change-Id: I6d31d39ac1017cd6fdf0ac66b418d1fbb1edf8e0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50193
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Create `FIXED_RCBA_MMIO_BASE` and use it everywhere, except in cases
where a pointer cast would be necessary. Instances in Sandy Bridge MRC
code were left as-is intentionally, so as not to collide with another
cleanup patch train.
Tested with BUILD_TIMELESS=1, these boards remain identical:
- Asus P8Z77-V LX2
- Packard Bell MS2290
Change-Id: I642958fbd6f02dbf54812d6a75d6bc3087acc77a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50036
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
It is the same for all three mainboards.
Change-Id: Ic5786bcc29e2549d6fc935d60c699c1cab84b237
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50027
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
It's a static value that is neither referenced from SMI handler
nor needs to be updated on S3 resume path.
Change-Id: I3928e5973fe65d9a4fe7975e5d5584efe6e5f2f8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50120
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Was copied from bd82x6x and none of the PCI IDs matches that of Ibex
Peak (PCI_DID_INTEL_IBEXPEAK_HECI1 = 0x3b64). Remove the code. This
allows dropping the me_8.x.c dependency, which never made sense.
Change-Id: I54df1e080048c0599dbee687ec617fb724cb6634
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49989
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
