This patch fixes the alignment of the PMC macros defined in the
pm.h file.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ia8d35a5d104658b7900fde7f7b8c6f88530a614e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72129
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Update setting for touchpad I2C frequency and hold time to meet touchpad
i2c SPEC.
- Frequency: 380 ~ 400 kHz
- hold time : 0.3 ~ 0.9 us
BUG=b:261159229
TEST=On frostflow, touchpad i2c spec from EE measure
Frequencies: I2C0 (Touchpad): 393.7 kHz
Hold time = 0.604 us
Change-Id: Iecf4960a12aa56ac307fb9022e47c4e94a2551c1
Signed-off-by: Rex Chou <rex_chou@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72114
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Even though the register name begins with ESPI, it resides in the SPI
registers and not in the eSPI registers, so add a comment to point this
out to hopefully avoid some confusion.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I9f8d15ceb98f51aad0816021f98ec5c78953e7f3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72122
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Checked against document #57396 revision 1.52 and removed the
DIS_ESPI_MASCTL_REG_WR define, since that bit is marked as reserved.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I3e8b1c65118b4e85e7934e822a7a7e329746a88d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72121
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Checked against both documents #57019 revision 1.59 and #57396 revision
1.50 that the definitions and the code still apply to Phoenix.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Id65301ec730793f41044696f2e99356f2e899137
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72120
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
From Cezanne on, the TMPS, TCRT and TPSV fields are unused in both the C
and ACPI code, so they can be removed. Also remove the unused fields
that were previously used for PCNT and PWRS. The LIDS field is only used
in the ACPI code, but keep if for now, since it would require a bigger
rework to remove it from the global NVS.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ie1c3c25591deadb27b7bf38a81dcd6fe746de55b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72096
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
From Cezanne on, the TMPS, TCRT and TPSV fields are unused in both the C
and ACPI code, so they can be removed. Also remove the unused fields
that were previously used for PCNT and PWRS. The LIDS field is only used
in the ACPI code, but keep if for now, since it would require a bigger
rework to remove it from the global NVS.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I5a9b0a24f57a81b98c7553517fe5f25ff63c5316
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72095
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
From Cezanne on, the TMPS, TCRT and TPSV fields are unused in both the C
and ACPI code, so they can be removed. Also remove the unused fields
that were previously used for PCNT and PWRS. The LIDS field is only used
in the ACPI code, but keep if for now, since it would require a bigger
rework to remove it from the global NVS.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I884d6a7dedb73028f8942fdda86b0c9910fa996a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72094
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
From Cezanne on, the TMPS, TCRT and TPSV fields are unused in both the C
and ACPI code, so they can be removed. Also remove the unused fields
that were previously used for PCNT and PWRS. The LIDS field is only used
in the ACPI code, but keep if for now, since it would require a bigger
rework to remove it from the global NVS.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ib4034e959d167fb1e08ee5b15e21fb93bc89db8a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72093
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
All field definitions in the IndexField object match both the info in
the PPR #57243 revision 3.02 and also match the defines in soc/amd/
mendocino/include/soc/amd_pci_int_defs.h. The IndexFieldvonly defines
the subset of the IRQ mapping registers that are used or likely needed
in the future. This is handled in the same way for the other AMD SoCs.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I6b0adfecc99945de69b4853f4423b4c10951d3e5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72092
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
With the addition of the mc_ehl3 board variant, a few
points about commenting the code arose either from the
review or during the implementation itself.
This patch unifies structure of these files, which
have a similar structure across more Siemens boards
utilizing the PTN3460 eDP-to-LVDS bridge.
BUG=none
TEST=Check that images for the affected boards can be
built.
Change-Id: I59820362e1f87e296c5548b9c3cecba4d2710fe7
Signed-off-by: Jan Samek <jan.samek@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72068
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This board contains in addition to its base variant, mc_ehl2,
an LCD panel driven through the PTN3460 eDP-to-LVDS bridge.
This patch enables the PTN3460 support by adding the device to
devicetree.cb and board-specific configuration parameters in
lcd_panel.c, based upon a similar implementation in siemens/mc_apl7.
BUG=none
TEST=Boot with the LCD panel attached and observe whether
the picture is stable and free of artifacts coming from wrong
resolution, timing etc.
Change-Id: Ib8a1a6f47053406e42554c2dd33684165d54be08
Signed-off-by: Jan Samek <jan.samek@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70692
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
The {read,write}{16,32}() functions used in this file come from the
mmio.h header, so include it directly.
BUG=none
TEST=Read out the SD card controller (device 1a.1) PCI registers
in Linux and check whether the values reflect the ones defined
in this file.
Change-Id: Iff7b55ef2bf98371b7d7d9114ccf3ebed64772a2
Signed-off-by: Jan Samek <jan.samek@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72009
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Use acpi_align_current to align the ACPI tables on a 16 byte boundary.
This changes the alignment of the HEST, IVRS, SRAT and SLIT tables from
8 bytes to 16 bytes. The alignment of the ALIB and PSTATE SSDT tables
was already 16 bytes before, so the alignment of those isn't changed.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8933e3731b67012bcae0773db2f7f8de7cd31b56
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72055
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Introduce at new config option CONFIG_FSP_PUBLISH_MBP_HOB to
control the creation of ME_BIOS_PAYLOAD_HOB (MBP HOB) by FSP.
This new option is hooked with `SkipMbpHob` UPD and is always
disabled for ChromeOS platforms.
This made skip_mbp_hob SOC chip config variable redundant
which is also removed as part of this change.
BUG=none
TEST=Build and boot to Google/Rex.
Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Change-Id: Iaba1ea29a92a63d2b287e1ccdea1a81ec07b9971
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71997
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Currently most of the FSP debug messages (when enabled) are truncated
due to insufficient size of cbmem buffer.
Increase premem cbmem console size to 0x16000 bytes and cbmem buffer
size to 0x100000 bytes so that cbmem buffer can contain most of the
debug logs when FSP debug messages are enabled.
BUG=b:265683565
TEST=Verify output of 'cbmem -c' when FSP debug messages are enabled
but MRC debug message.
Note: Still 350/2200 lines of premem messages are missing.
Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Change-Id: I120423e1dd2bc468cf9cec6da1246ac3c0a155e5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72048
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Current size of the cbmem buffer (128KB) is insufficient to contain the
complete debug logs which is more than 166KB hence, cbmem console buffer has wound off to contain the maximum possible debug messages within the allocated buffer as results, we are seeing truncated debug message while looking into the cbmem console.
This patch increases cbmem buffer size to 256KB so that the complete
debug log can be stored in it.
BUG=b:265683565
TEST=Make sure that logs from all the boot stages can be seen using
'cbmem -c'.
Signed-off-by: Kapil Porwal <kapilporwal@google.com>
Change-Id: Ibeabb61d60491b831252b7161c9d3181fbe09e73
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72047
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Usha P <usha.p@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Turn on the dxio_tx_vboost_enable for frostflow in coreboot.
It needs to confirm the PCIe Signal Integrity after enabled.
BUG=b:259007881, b:248221908
BRANCH=none
TEST=emerge-skyrim coreboot chromeos-bootimage
Signed-off-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
Change-Id: Iaac331737c83ac7a4a1261c32151359e126a009e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71926
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Intel Ice Lake is unmaintained and the only user of this platform ever
was the Intel CRB (Customer Reference Board). As it looks like, it was
never ready for production as only engineering sample CPUIDs are
supported.
As announced in the 4.19 release notes, remove support for Intel
Icelake code and move any maintenance on the 4.19 branch.
This affects the following components and their related code:
* Intel Ice Lake SoC
* Intel Ice Lake CRB mainboard
* Documentation
Change-Id: Ia796d4dc217bbcc3bbd9522809ccff5a46938094
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72008
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Turn on the dxio_tx_vboost_enable for markarth in coreboot.
It needs to confirm the PCIe Signal Integrity after enabled.
BUG=b:263534907, b:263216451
BRANCH=none
TEST=emerge-skyrim coreboot chromeos-bootimage
Signed-off-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
Change-Id: I0798c1d9788e1911c2643bf387722b072aa79045
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71931
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Reviewed-by: John Su <john_su@compal.corp-partner.google.com>
Reviewed-by: Chao Gui <chaogui@google.com>
Change MAINBOARD_PART_NUMBER Kconfig value for mc_ehl3
from "MC_EHL3" to "MC EHL3".
Change-Id: Ie548607c5fb62faaed4921af714bc9b912e558a8
Signed-off-by: Jan Samek <jan.samek@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71775
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The parameter 'maxlen' can be a bit confusing as it actually is
referring to the size of the destination memory block where the
requested parameter is stored to. Rename it to 'dstsize' and change
the type to size_t to be more clear here.
In addition, add a comment line for this parameter in the description
of the function 'hwilib_get_field()'.
This patch has no impact to the generated binary (checked with timeless
build).
Change-Id: I572dc0f3ff3d0c177d608332a88991396b82c2fd
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72045
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Jan Samek <jan.samek@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
This is the list generated by util/vboot_list/vboot_list.sh
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: Ib782a676fed312a2c84e89914f871984a289f610
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72003
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Skyrim doesn't use the firmware TPM, so remove the binary from the
image.
Note that because this was not used, removing it doesn't change the boot
time.
BUG=None
TEST=Boot
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: Ia627b128c3346a2556c5306de7506519d1f2d70c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72002
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
As per the code style there is no space before the opening brace of a
function declaration. Delete the space in hwilib.c and hwilib.h.
Change-Id: Ie122ccd2dbae97f595463a097826d3415718a8bc
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72044
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Since commit d5ab24cd48 ("soc/amd/common/acpi/cppc: add nominal and
minimum frequencies") the fields that got added in CPPC version 3 get
populated, so remove the now outdated comment about the fields added in
version 3 always being set to CPPC_UNSUPPORTED.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I4c975b42fc4f67329170801b871d6bbdf9637d04
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72046
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Add a INFO print indicating that we did infact attempt to display the
MRC training message to the user.
BUG=b:252792591
BRANCH=firmware-brya-14505.B
TEST=Print seen in cbmem -c
Signed-off-by: Tarun Tuli <taruntuli@google.com>
Change-Id: I1a20fb221aa2fa0eeaf9b7f8cf3d8a8ab0b91133
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71284
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
The Picasso SoC code generates a CRAT ACPI table which is not done for
Cezanne and newer. A significant part of the Picasso CRAT generation
code can likely be moved to the common AMD SoC code and then used in all
SoCs, but this still needs to be checked.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I8f1ebe74f0376c60396dbd80e64676d1374ed811
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72027
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This changes the alignment of the IVRS table from 8 bytes to 16 bytes
and aligns the ALIB table to a 16 byte boundary.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I965791fbbe499702e191dcbf1f5fbfcb5e1bab6b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72026
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
This changes the alignment of the IVRS table from 8 bytes to 16 bytes
and aligns the ALIB table to a 16 byte boundary.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I766260aefcac6876609d6b45202b41a3e9e44385
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72025
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
This changes the alignment of the IVRS table from 8 bytes to 16 bytes
and aligns the ALIB table to a 16 byte boundary.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I2b48a7cbed84551e7651992589c38eac54f27d1f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72024
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
This changes the alignment of the IVRS table from 8 bytes to 16 bytes
and aligns the ALIB table to a 16 byte boundary.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I4de66ab11508814da5d7fb440a1083a52551bcf5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72023
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
This makes sure that the ALIB table is aligned on a 16 byte boundary.
TEST=Mandolin still boots Linux and the position and size of the ACPI
tables in memory shown by dmesg hasn't changed.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I90781ef98b729c0a8d1f5dde46fc9ca5d08618b3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72022
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
This changes the alignment of the CRAT and IVRS tables from 8 bytes to
16 bytes.
TEST=Mandolin still boots Linux and the position and size of the ACPI
tables in memory shown by dmesg hasn't changed.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I88df331c8410d8dca41a414543f051f5e4656ff1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72021
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
The patch fixes indication of incorrect `prev_sleep_state` on the next
boot after global reset trigger. The existing code misses an important check about `if PCH doesn't set the WAK_STS` while checking power
failure. As a result, every early warm/global reset is considered
as power failure after looking into the PMC MMIO CON-A register
alone (as ignoring the ACPI PM_CTRL.WAK_STS bit).
As per the code comment this code logic is expected to check the power
failure reason if PCH doesn't set the WAK_STS while waking from G3
state.
Without this patch:
Observation: Resuming after a warm reset is considered as
`prev_sleep_state 5` although the SLP_TYP is zero and WAK_STS bit
is set.
pm1_sts: 8100 pm1_en: 0000 pm1_cnt: 00000000
GEN_PMCON: d1215238 00002200
....
prev_sleep_state 5
With this patch:
Observation: Resuming after a warm reset is considered as
`prev_sleep_state 0`. It matches with the SLP_TYP is zero and
WAK_STS bit is set.
pm1_sts: 8100 pm1_en: 0000 pm1_cnt: 00000000
GEN_PMCON: d1215238 00002200
....
prev_sleep_state 0
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ib43d3402f94f47dc576fb99a6b2a7acf6f0af220
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71982
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The patch fixes indication of incorrect `prev_sleep_state` on the next
boot after global reset trigger. The existing code misses an important check about `if PCH doesn't set the WAK_STS` while checking power
failure. As a result, every early warm/global reset is considered
as power failure after looking into the PMC MMIO CON-A register
alone (as ignoring the ACPI PM_CTRL.WAK_STS bit).
As per the code comment this code logic is expected to check the power
failure reason if PCH doesn't set the WAK_STS while waking from G3
state.
TEST=Able to build and boot google/dragonegg.
Without this patch:
Observation: Resuming after a warm reset is considered as
`prev_sleep_state 5` although the SLP_TYP is zero and WAK_STS bit
is set.
pm1_sts: 8100 pm1_en: 0000 pm1_cnt: 00000000
GEN_PMCON: d1215238 00002200
....
prev_sleep_state 5
With this patch:
Observation: Resuming after a warm reset is considered as
`prev_sleep_state 0`. It matches with the SLP_TYP is zero and
WAK_STS bit is set.
pm1_sts: 8100 pm1_en: 0000 pm1_cnt: 00000000
GEN_PMCON: d1215238 00002200
....
prev_sleep_state 0
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I0e5a6e54abc7c03a2fbffa308db20c392e2a600b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71983
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The patch fixes indication of incorrect `prev_sleep_state` on the next
boot after global reset trigger. The existing code misses an important check about `if PCH doesn't set the WAK_STS` while checking power
failure. As a result, every early warm/global reset is considered
as power failure after looking into the PMC MMIO CON-A register
alone (as ignoring the ACPI PM_CTRL.WAK_STS bit).
As per the code comment this code logic is expected to check the power
failure reason if PCH doesn't set the WAK_STS while waking from G3
state.
TEST=Able to build and boot google/dedede.
Without this patch:
Observation: Resuming after a warm reset is considered as
`prev_sleep_state 5` although the SLP_TYP is zero and WAK_STS bit
is set.
pm1_sts: 8100 pm1_en: 0000 pm1_cnt: 00000000
GEN_PMCON: d1215238 00002200
....
prev_sleep_state 5
With this patch:
Observation: Resuming after a warm reset is considered as
`prev_sleep_state 0`. It matches with the SLP_TYP is zero and
WAK_STS bit is set.
pm1_sts: 8100 pm1_en: 0000 pm1_cnt: 00000000
GEN_PMCON: d1215238 00002200
....
prev_sleep_state 0
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Id2c1f24a8fa54eea512b5bd3dd91423f9892687d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71984
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Subrata Banik