• Based on FSP EAS v2.1 – Backward compatibility is retained.
• Add multi-phase silicon initialization to increase the modularity of the
FspSiliconInit() API.
• Add FspMultiPhaseSiInit() API
• FSP_INFO_HEADER changes
o Added FspMultiPhaseSiInitEntryOffset
• Add FSPS_ARCH_UPD
o Added EnableMultiPhaseSiliconInit, bootloaders designed for
FSP 2.0/2.1 can disable the FspMultiPhaseSiInit() API and
continue to use FspSiliconInit() without change.
FSP 2.2 Specification:
https://www.intel.com/content/www/us/en/intelligent-systems/intel-firmware-support-package/intel-fsp-overview.html
Change-Id: If7177a267f3a9b4cbb60a639f1c737b9a3341913
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41728
Reviewed-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
If there is no installed audio daughter board on volteer then the
HDA driver in the kernel will crash on resume. In order to prevent
this disable the PCI device when AUDIO=NONE probe match is true.
BUG=b:147462631
TEST=boot on volteer and ensure that the PCI device at 0:1f.3 is gone
Change-Id: I4a436e1b76418030bf635427e490b54a713fdd33
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41217
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com>
Reviewed-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Zork family does not use OEM binary and so this change drops the
configs required for adding this binary.
Change-Id: Id38c67030e4055ab16934d1a900ee1cea5843b54
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42336
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This way drivers can wait for their devices to be enabled.
I also rewrote enable_aoac_devices to take advantage of
wait_for_aoac_enabled.
BUG=b:153001807
TEST=Trembyle builds
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I8e653c857e164f90439e0028e08aa9608d4eca94
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42326
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
If the OS sets the target device state to D3, we need to clear it so we
can reestablish register access.
BUG=b:153001807
TEST=Boot trembyle with I2C powered off and see it power back on.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: If9bd1b7cfa7b8d074226c4dcdefc1a44cad8b940
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42325
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This functionality is needed in the PSP and I can't include all of
southbridge.c.
BUG=b:153001807
TEST=Made sure trembyle still compiles
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I3a38c655588d7836e1bd033e958a505774de871e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42324
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The legacy UARTs are supposed to default to off according to the
documentation (PPR for AMD Family 17h Model 18h). But legacy UART Range_0
is enabled after reset. The PSP might be enabling it or the documentation
might be wrong.
Having it enabled causes problems though. We have ACPI nodes defining
MMIO UARTs, and the kernel also probes for legacy UARTs. This results in
two drivers accessing the same device, one via MMIO and one via IO. I
suspect this was the cause of the garbage serial output.
Before the change you would see the following in the console:
[ 0.741108] serial8250: ttyS3 at I/O 0x2e8 (irq = 3, base_baud = 115200) is a 16550A
After this change, we no longer see it.
BUG=b:152079780, b:157858890
TEST=Boot trembyle and make sure serial is still working.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I9d837e449b961dbb55d1301d2107838e26b3f892
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42323
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
The purpose of pci_early_bridge_init() is to temporarily configure
PCIe rootport (or PCI bridge) on bus 0 to configure PCI device BARs
on the secondary bus. Currently used and tested only with UART_OXPCIE.
Since those BARs do not reset on stage changes, it is not necessary
to redo those steps for verstage or postcar. Note that the option
does not really work with many of the later platforms where PCIe
pins/links/lanes are configured late in FSP-M or similar blob.
Change-Id: I148f44c76c61edcfd8ab1c8c531cd2e6ca343130
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42227
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The start and end bus number in the MCFG ACPI table is inclusive.
Therefore, the number of buses decoded needs to be subtracted by
1.
BUG=b:158874061
Change-Id: Ic773bc1e0ccaa99af45d1a53919f6480887fa37e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42329
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Enables the fourth thermal sensor for fan in DPTF for volteer
BRANCH=None
BUG=b:149722146
TEST= On volteer system check
`cat /sys/class/thermal/thermal_zone5/type` for TSR3
Signed-off-by: Deepika Punyamurtula <deepika.punyamurtula@intel.com>
Change-Id: Ie11496828133aa71f1017f759516e2e5d3dff2d7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42317
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Roy Mingi Park <roy.mingi.park@intel.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Currently, configuring and reviewing DPTF parameters is difficult
because DPTF tables and methods are defined in static ASL files, and are
littered with #ifdefs which both define parameters and influence
behavior (e.g., whether a method is included or not). This patch train
is an effort to bring DPTF support to our ACPI DSDT/SSDT generation
framework.
This first patch is very minimal, and includes only creation of the
DPTF device (in the DSDT).
BUG=b:143539650
TEST=compiles (later tests get more comprehensive).
Change-Id: I14df9f422c911677aeea25552ac1822a9462c58a
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41883
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Since we plan to use VMX, enable CPU_INTEL_COMMON.
BUG=b:157388365
TEST=tested on Volteer
Signed-off-by: Alex Levin <levinale@chromium.org>
Change-Id: I5e7bdb4310947dd8a94ee554834a67ce94377ea5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42298
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Correct a message of "Error: Can't add stage_cache 57a9e101 to imd".
ramstage is 0xffc90 and adding FSP-S (0x50000) failed. Increase the
reserved region of SMRAM to accommodate both images.
BUG=b:158704095
TEST=Boot Mandolin and check console log
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Change-Id: I51595d80d4779e995ec2a26e395cf95d666a309e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42314
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Added device hid info to the MST and LSPCON devices.
BRANCH=None
BUG=b:156546414
TEST=Manual tested and able to see update on sysfs and ssdt table
Signed-off-by: Shiyu Sun <sshiyu@chromium.org>
Change-Id: Iaef6c08f241ea671d1487a8524162dbb438b8e98
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42300
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Currently, the logs are only checked, if retrieved locally. Moving it
after the if statement, now logs retrieved remotely are also checked.
The change in behavior is, that now all commands are executed first, so
before hitting this error, other errors might occur unrelated to the
console log.
Change-Id: I016bbde66c58a654042ad880c6007ddc1d143691
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41858
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This patch adds correct PL2 baseline setting and PsysPL2 for different
SKUs. There is no way to identify the barral jack power rating, the
assumption is following that ships with the product:
1. i3/i5/i7: 90W BJ
2. Celeron/Pentium: 65W BJ
For Type-C adapter, we don't have Pcritcial (10ms) data, keeps the
original settings as 90% of adapter rating for PsyspL2/PL4 and PL2
as min(PL2, 0.9n) where n is adapter rating power.
BUG=b:143246320
TEST=Run with U62 and Celeron CPU and ensure the PL2 settings are correct
Change-Id: Ib16d4f65707801b430f06892ab45ecfa7551593f
Signed-off-by: Tim Chen <tim-chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42281
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
The Endeavour variant does not have a DisplayPort input so there's no
need to wait for it.
BUG=b:147830399
BRANCH=none
TEST=boot endeavour; check coreboot logs
Signed-off-by: Jeff Chase <jnchase@google.com>
Change-Id: I30c7c47f19a61ce66c6c923864d80870d2761859
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42085
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
ALIB function 1 needs to be called every time there is a change in
AC/DC state of the system. This change adds a wrapper method that can
be called by PNOT (method to notify system power state change) to
report to ALIB that system power state has changed i.e. AC <-> DC.
Additionally, this change drops the call to ALIB from _INI method
since the PWRS object might not be initialized correctly at that
point. Instead EC makes a call to PNOT when PWRS is initialized.
This wrapper also fixes the value of power state being passed into
ALIB. ALIB expects 0 = AC and 1 = DC. On the other hand, PWRS reports
1 as AC and 0 as DC. WAL1() takes care of inverting the PWRS state
before passing into ALIB.
BUG=b:157752693
TEST=Verified that WAL1() gets called on AC connect/disconnect.
Steps followed:
$ echo 1 > /sys/module/acpi/parameters/aml_debug_output
$ dmesg -w | grep ACPI
[ 76.306947] ACPI Debug: "EC: AC DISCONNECTED"
[ 76.307064] ACPI Debug: "ALIB call: func 1 params 0x03 0x00 0x01"
[ 82.264946] ACPI Debug: "EC: GOT PD EVENT"
[ 82.539833] ACPI Debug: "EC: GOT PD EVENT"
[ 82.753721] ACPI Debug: "EC: GOT PD EVENT"
[ 82.843676] ACPI Debug: "EC: GOT PD EVENT"
[ 82.970596] ACPI Debug: "EC: AC CONNECTED"
[ 82.970659] ACPI Debug: "ALIB call: func 1 params 0x03 0x00 0x00"
[ 83.047598] ACPI Debug: "EC: GOT PD EVENT"
[ 84.804733] ACPI Debug: "EC: GOT PD EVENT"
[ 86.317934] ACPI Debug: "EC: GOT PD EVENT"
[ 86.385920] ACPI Debug: "EC: GOT PD EVENT"
[ 86.515830] ACPI Debug: "EC: AC DISCONNECTED"
[ 86.515922] ACPI Debug: "ALIB call: func 1 params 0x03 0x00 0x01"
[ 90.089062] ACPI Debug: "EC: GOT PD EVENT"
[ 90.357914] ACPI Debug: "EC: GOT PD EVENT"
[ 90.573812] ACPI Debug: "EC: GOT PD EVENT"
[ 90.662744] ACPI Debug: "EC: GOT PD EVENT"
[ 90.788706] ACPI Debug: "EC: AC CONNECTED"
[ 90.788835] ACPI Debug: "ALIB call: func 1 params 0x03 0x00 0x00"
[ 90.865675] ACPI Debug: "EC: GOT PD EVENT"
[ 92.621793] ACPI Debug: "EC: GOT PD EVENT"
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I1f2ade28ca35378ebf4647d8df3d2ea4d0b08096
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42297
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This change calls \PNOT () method when AC power state is initialized
to allow platform code to take appropriate action.
BUG=b:157752693
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I089e9096f78728ddc5df2d8cb8f22f65b30b02dc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42315
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This allows to remove references to CONFIG_DCACHE_RAM entries in
most cache_as_ram.S files. While Kconfig variable names appear
for every stage, linker symbol names will only appear in stages
they are valid in.
Also, linker scripts have LOG2CEIL which comes in handy to enforce
MTRR alignments.
Change-Id: I2fef3546d2bfea2d4d8f87aaf8376e5566fd6aaa
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30872
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Now that Picasso uses its own memlayout.ld, always include id.ld in
arch/x86/memlayout.ld.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I04b59c2a273cad0a2e64dbc325c0b09fca254558
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42266
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Now that Picasso uses its own linker script, early_ram.ld from
arch/x86 is unused and hence is dropped as part of this change.
BUG=b:155322763
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ida83d40d005ddab789628a1581389fc487b10d4d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42265
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change updates memlayout.ld for Picasso to place all early
stages (bootblock, romstage, FSP-M, verstage) and data buffers (vboot
workbuf, APOB, preram-cbmem console, timestamp, early BSP stack) at
the bottom of DRAM starting at 32MiB. This uses static allocation for
most components by defining Kconfig variables for base and size. It
relies on the linker to complain if any of the assumptions are broken.
This also allows romstage to use linker symbols for
_early_reserved_dram and _eearly_reserved_dram to store information in
CBMEM about the early DRAM usage by coreboot before ramstage starts
execution. This allows ramstage to reserve this memory region in BIOS
tables so that S3 resume can reuse the same space without corrupting
OS memory.
BUG=b:155322763
TEST=Verified memory reported by coreboot:
Writing coreboot table at 0xcc656000
0. 0000000000000000-0000000000000fff: CONFIGURATION TABLES
1. 0000000000001000-000000000009ffff: RAM
2. 00000000000a0000-00000000000fffff: RESERVED
3. 0000000000100000-0000000001ffffff: RAM
4. 0000000002000000-000000000223ffff: RESERVED
5. 0000000002240000-00000000cc512fff: RAM
6. 00000000cc513000-00000000cc6bffff: CONFIGURATION TABLES
7. 00000000cc6c0000-00000000cc7c7fff: RAMSTAGE
8. 00000000cc7c8000-00000000cd7fffff: CONFIGURATION TABLES
9. 00000000cd800000-00000000cfffffff: RESERVED
10. 00000000f8000000-00000000fbffffff: RESERVED
11. 0000000100000000-000000042f33ffff: RAM
12. 000000042f340000-000000042fffffff: RESERVED
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I009e1ea71b5b5a8e65eba16911897b2586ccfdb6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42264
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This change drops the check for IS_TOP_ALIGNED_ADDRESS() before
setting offset to 0 in cbfstool_convert_fsp(). If the user provides a
baseaddress to relocate the FSP to, then the offset should be set to 0
since there is no requirement on where the file ends up in cbfs. This
allows the user to relocate the FSP to an address in lower DRAM.
BUG=b:155322763
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ibeadbf06881f7659b2ac7d62d2152636c853fb9f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42263
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change adds a new CBMEM ID (CBMEM_ID_CB_EARLY_DRAM) that can be
used by platform code to stash details of early DRAM used by
coreboot.
BUG=b:155322763
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I913c744fdce2f9c36afdc127b2668fccf57dde58
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42262
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change copies src/arch/x86/memlayout.ld file to
src/soc/amd/picasso/ and sets MEMLAYOUT_LD_FILE config variable to
point to this newly added file. Unused elements from the memlayout.ld
file are dropped and path to early_dram.ld is updated to include the
one from src/arch/x86.
BUG=b:155322763
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I59bf5f93b712407ddcc9fb8a46167936c6c28a76
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42261
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change defines a Kconfig variable MEMLAYOUT_LD_FILE which allows
SoC/mainboard to provide a linker file for the platform. x86 already
provides a default memlayout.ld under src/arch/x86. With this new
Kconfig variable, it is possible for the SoC/mainboard code for x86 to
provide a custom linker file as well.
Makefile.inc is updated for all architectures to use this new Kconfig
variable instead of assuming memlayout.ld files under a certain
path. All non-x86 boards used memlayout.ld under mainboard
directory. However, a lot of these boards were simply including the
memlayout from SoC. So, this change also updates these mainboards and
SoCs to define the Kconfig as required.
BUG=b:155322763
TEST=Verified that abuild with --timeless option results in the same
coreboot.rom image for all boards.
Change-Id: I6a7f96643ed0519c93967ea2c3bcd881a5d6a4d6
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42292
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change adds memory parts used by variant voxel to
mem_list_variant.txt and generates DRAM IDs allocated to these parts.
This variant is not yet supported by coreboot but DRAM IDs need to be
generated for it. In the coming days, variant voxel will be added to
coreboot.
BUG=b:157732528
Change-Id: I8780beec987deb8fed11bb8f84275dcba4768514
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41994
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
The current test framework builds the test code without any warnings at
all, which isn't great -- we have already slipped in some cases of
non-void functions not returning a defined value, for example. It would
likely be overkill to try to use all the same warnings we use for normal
coreboot code (e.g. some stuff like -Wmissing-prototypes makes cmocka's
__wrap_xxx() mock functions unnecessarily cumbersome to work with, and
other things like -Wvla may be appropriate for firmware but is probably
too aggressive for some simple test code). Therefore, let's just add
some of the stuff that points out the most obvious errors.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I4d9801f52a8551f55f419f4141dc21ccb835d676
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42259
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jan Dabros <jsd@semihalf.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
For Volteer mainboard, this patch set optimized values for PCH external
VR settings and ext rail voltage/current, to achieve better power
savings in sleep states.
v1p05 and vnn power rails can be used as an alternative source
by-passing vccin_aux during Sx. This by-pass feature, enables us to
shutdown vccin_aux rail which is higher voltage rail compared to v1p05
and vnn. These both rails were disabled by default in FSP. Changes in
this patch are:
1. v1p05 and vnn rails are enabled and enabled supported voltage types
in S0i1, S0i2, S0i3, S3, S4, S5 states. They were disabled by default.
2. Icc Max for v1p05 changed to 500 mA from default 100 mA.
3. vnn rail's voltage is changed to 5 V from default 4.2 V.
BUG=None
BRANCH=None
TEST="Build and boot volteer and check VR settings with Intel ITP-XDP
debugger and verify approx 250 mW power savings in Sx"
Signed-off-by: Venkata Krishna Nimmagadda <venkata.krishna.nimmagadda@intel.com>
Change-Id: Ib46423872c956af9aaa92902fce552d5447237c4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42223
Reviewed-by: Venkata Krishna Nimmagadda <Venkata.krishna.nimmagadda@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
For Tiger Lake platforms, this patch set provides a way to override PCH
external VR settings and ext rail voltage/current through devicetree.
This enables setting of optimal settings for FIVRs for a particular PCH
type.
BUG=None
BRANCH=None
TEST=Build and boot volteer.
Signed-off-by: Venkata Krishna Nimmagadda <venkata.krishna.nimmagadda@intel.com>
Change-Id: Ic55472d392f27d153656afbe8692be7e243bb374
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41424
Reviewed-by: Venkata Krishna Nimmagadda <Venkata.krishna.nimmagadda@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Subrata Banik