Some chips can read external temperature sensor values only to TMPIN3.
These use EC register 0x55, bit 7 to enable that. This patch adds
support for this. It is called "old PECI" by lm_sensors [0].
Other chips can read to any TMPIN[1-3] which is configured in EC
register 0x51 like the other temperature sources. This was the only
supported method. This patch adds a Kconfig option to indicate this
variant.
This patch was tested on an Acer Aspire M3800 which has an IT8720F that
reads the CPU temperature via PECI. It allows the automatic fan control
feature of the Super I/O to work.
Overview of support per chip in the coreboot tree, determined from
reading the publicly available datasheets or lm_sensors, if noted:
Old PECI:
* IT8718F
* IT8720F
* IT8781F, IT8782F, IT8783E/F
Normal PECI:
* IT8721F (exception: no PECI to TMPIN2)
* IT8728F
* IT8772E (uses separate code in coreboot, not superio/ite/common)
* IT8786E
* IT8613E, IT8623E (lm_sensors)
[0] Linux kernel 5.4.48, drivers/hwmon/it87.c
Signed-off-by: Michael Büchler <michael.buechler@posteo.net>
Change-Id: Iab7115852437d46c9b1269bba61ffcf680fe5a6a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44168
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Add CONFIG_FSP_STATUS_GLOBAL_RESET Kconfig to get correct FSP global
reset type from respective SoC Kconfig.
Supported value: 0x40000003-0x40000008, These are defined in FSP EAS
v2.0 section 11.2.2 - OEM Status Code
Unsupported value: 0xFFFFFFFF
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Change-Id: Idc04eb3a931d2d353808d02e62bd436b363600d1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45553
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
List of changes:
1. Rename do_global_reset() to force_global_reset()
2. Make force_global_reset() function static
3. Implement force_global_reset() into common/reset.c to avoid
dedicated SoC implementation
4. Remove redundant force_global_reset() implementation from
dedicated SoC
5. Make direct call to global_reset() from cse_lite.c
7. Drop CONFIG_HAVE_CF9_RESET_PREPARE Kconfig from APL SoC due
to common reset (soc/intel/common/reset.c) code migration
8. Remove unused function send_global_reset() from SKL me.c due
to common reset code migration
9. Delete heci.c from APL SoC as unused
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Change-Id: I1c5dc8d5606ef28ffaed4a64d90f470ae1ffc2a6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45541
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
get_prmrr_size does not return the actual PRMRR size but a valid PRMRR
size with repect to the users choice in Kconfig. Thus, rename it from
`get_prmrr_size` to `get_valid_prmrr_size` to avoid confusion about what
it does.
Also fix the broken comment in cpulib.h.
Change-Id: Id243be50acb741f2c3118ddde082743d08983a53
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45414
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Since PRMRR size can only be set when SGX is enabled and since SGX
depends on PRMRR size >= 32MB, any lower setting (including "Disabled")
is invalid. Drop these settings.
Change-Id: If7a19c7223a0de2e03b7df9184cddf7c9fc87a68
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45413
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Defer cse_fw_sync to BS_DEV_RESOURCES boot state so that MRC training
data can be cached before CSE FW Sync and a second MRC training can be
avoided.
BUG=b:168850641
TEST=Build and boot the waddledoo board to OS. Ensure that the memory
training is performed only once.
Change-Id: I0ef5693eaa6ed34dc08c94e5db153f4295578f5f
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45515
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Enhanced Intel SpeedStep Technology (EIST) and Intel Speed Shift
Technology (ISST) - also know as HWP - are two independent mechanisms
for controlling voltage and frequency based on performance hints.
When HWP is enabled, it overrides the software-based EIST. It does not
depend on EIST, though, but can be enabled on its own.
Break up that currently existing dependency in ACPI generation code.
It was tested that HWP can be enabled and gets used by the Linux pstate
cpufreq driver. With HWP disabled, the frequency does not decrease, even
not in powersave mode. After enabling HWP the frequency changed in
relation to the current workload. (Test device: Acer ES1-572)
Change-Id: I93d888ddce7b54e91b54e5b4fdd4d9cf16630eda
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44137
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Upstream has converted all uses of SUBSYSTEM_{VENDOR,DEVICE}_ID in
Kconfig to subsystemid in devicetree. It will soon produce a lint error
from Jenkins [1].
[1]: https://review.coreboot.org/c/coreboot/+/45513/
Change-Id: I66d5d5f23d3c8ab6ed79dad432a0773841147eea
Signed-off-by: Tim Crawford <tcrawford@system76.com>
The pre-RAM CBMEM console is tiny. Do not fill it with largely redundant
information, when we could instead store more useful raminit debug logs.
Change-Id: I3a93fdeb67b0557e876f78b12241b70933ad324d
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45499
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
