Configure GPIO.1 and GPIO.2 as sensor SDA and SCL respectively
for TPS68470 PMIC in daisy chain mode.
* GPIO.1: Sensor SDA in daisy chain mode.
* GPIO.2: Sensor SCL in daisy chain mode.
BUG=b:38326541
BRANCH=none
TEST=Build and boot soraka. Dump and verify that the generated DSDT table
has the required entries. Verified that sensor probe is successful.
Change-Id: I7f9686427772a33c06e4cdaafee9b0349d700639
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Reviewed-on: https://review.coreboot.org/20665
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rajmohan Mani <rajmohan.mani@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
It requires changes to match the hardware. Except for the weak
attributes that are now removed in coral's copy, the file is identical
to the baseboard version.
BUG=b:63876329
BRANCH=none
TEST=none
Change-Id: Ib0c5f0ecae9919f20631dacef0253416989fb011
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/20751
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Enable S0ix for poppy and soraka in their device trees respectively.
BUG=b:36630881
BRANCH=none
TEST=Verified S0ix and S3 operation on Poppy and Soraka (250+ iterations).
Change-Id: I9ba91499e54f729970448af6f71804ad5b3cb836
Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/20689
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
GPP_B7, GPP_D1 and GPP_D2 are not used going forward. Mark them as NC
in gpio table.
BUG=b:62322846,b:62240755
Change-Id: I7aee08314e6ce96d5913ae315bf75f5c04ab7370
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/20672
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Now that soraka is starting to deviate from the baseboard w.r.t. gpio
settings, make a new copy of gpio table before we make any
variant-specific changes in it.
BUG=b:62240755,b:62322846
BRANCH=None
TEST=Verified with gpio_debug=1 in skylake/gpio.c that the gpio
configuration before and after this change remains same.
Change-Id: I448d18f18b63e9bfb739c518d599de3b9b602dc2
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/20671
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This patch adds the necessary changes to support Scarlet revision 1.
Since the differences to revision 0 are so deep, we have decided not to
continue support for it in the same image. Therefore, this patch will
break Scarlet rev0.
All the deviations from other Gru boards are currently guarded by
CONFIG_BOARD_GOOGLE_SCARLET. This should be changed later if we
introduce more variants based on the newer Scarlet board design.
Change-Id: I7a7cc11d9387ac1d856663326e35cfa5371e0af2
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/20587
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Schneider <dnschneid@chromium.org>
Our structure packing for Rockchip's gpio_t was chosen arbitrarily. ARM
Trusted Firmware has since become a thing and chosen a slightly
different way to represent GPIOs in a 32-bit word. Let's align our
format to them so we don't need to remember to convert the values every
time we pass them through.
CQ-DEPEND=CL:572228
Change-Id: I9ce33da28ee8a34d2d944bee010d8bfc06fe879b
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/20586
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
BUG=none
BRANCH=reef
TEST=emerge-snappy coreboot chromeos-bootimage and verify the keyboard
backlight can be bright and alt+f6, alt+f7 function keys can be used.
Change-Id: I6d06f72e1ccc66292b4e5f867314d84c309af885
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/20633
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Set PL2 and SysPL2 for Fizz based on cpu id.
BUG=b:7473486, b:35775024
BRANCH=None
TEST=On bootup make sure PL2 and PsysPL2 values set
properly (through debug output)
Change-Id: I5c46667fdae9d8eed5346a481753bb69f98a071b
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://review.coreboot.org/20420
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
All other Sandy/IvyBridge google boards have this function,
which is required by nb/sandybridge/raminit_mrc.c. Without it,
compilation fails when using MRC vs native ram init.
Change-Id: I3318700c540e97baf0a75aafb73f160aaae6703f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20538
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
There will be more follow-up changes.
BUG=b:63537905
BRANCH=None
TEST=emerge-nefario coreboot libpayload
Change-Id: I6bb80723ea2573df617026a4a5740adb89331892
Signed-off-by: Philip Chen <philipchen@google.com>
Reviewed-on: https://review.coreboot.org/20522
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
1. Due to reset signal, PMIC loses its internal register state. This
causes PMIC to be in improper state after sleep.
2. The intent of reset signal is to reset internal state of PMIC (which
happens once during power on), hence avoid asserting reset signal
when not needed.
3. As per PMIC (TPS68470) datasheet, device can be kept in SLEEP mode
when not in use to save max possible power.
To fix the same, do not reset PMIC while entering sleep.
By keeping PMIC in SLEEP mode, Power consumption is < 1uW (Typ) upto
3.63uW (Max). Refs: TPS68470 datasheet.
Measured value: 0.66uW
TEST= Build the firmware for Soraka & boot to OS. Do S3 resume & check
whether PMIC internal registers state are preserved.
Change-Id: I93ce4d76b0376b64ae6d1067aca0fd7467af3582
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/20264
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Chell doesn't have a touchscreen, so remove the driver
definition from devicetree. Leave the PCI device function 0
enabled since disabling results in the touchpad (function 1)
being disabled as well.
Change-Id: I32619b7618bc0cdd99fa54fdda9bf2b5c1bb79a4
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Use the new PAD_CFG_GPI_INT macro to specify the headset codec
interrupt as specifically edge triggered (since it is registered
as EDGE_BOTH in the devicetree) in order to prevent the interrupt
from firing unexpectedly when the system is resuming.
Also change the DSP interrupt to edge triggered since the kernel
is registering with IRQF_TRIGGER_RISING in order to prevent an
interrupt storm when it asserts.
BUG=b:35582164
TEST=manual testing on Eve:
1) ensure the headset codec sends interrupt on insert and remove
2) ensure there is only one interrupt counted when DSP asserts irq
Change-Id: I40a8ee667de653e4e70770cd96b6417442c1b0ec
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/20433
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Make this pin a GPI as it is supposed to be an input from the touch
controller and not driven by the AP.
BUG=b:35581264
TEST=check pin state with a scope
Change-Id: Ife5f84fcc614255b20e44389279d515a12f5751d
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/20430
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Board changes in rev6+ have a fix to VDDQ that should fix the issue
that was being seen with this SKU, so only lower the memory speed on
older boards.
BUG=b:37172778
TEST=memory stress testing on rev6 boards
Change-Id: I6d6fe730cabd74af23eab3f02feef9da01a35fd4
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/20429
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Add support for waking from and logging device events that
originate in the Embedded Controller. As this device uses
Deep S3 it relies on the EC to wake the AP from the trackpad
and DSP wake sources.
BUG=b:30624430
TEST=manual testing on Eve: wake from Deep S3 via trackpad and
DSP and verify the event log contains the expected device event.
Change-Id: I0d6a9c5bfd4cea85e13446ffaa6fe3dab0db96a2
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/20428
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The Chrome EC event for "thermal overload" was never implemented and
is being repurposed as the EC event mask is out of free bits.
Remove this from the boards that were enabling it.
BUG=b:36024430
TEST=build coreboot for affected boards
Change-Id: I6038389ad73cef8a57aec5041bbb9dea98ed2b6e
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/20424
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
- Describe RT5663 headphone codec in ACPI so it can
be enumerated by the OS.
- Supply NHLT binaries for RT5663
BUG=b:62872377
TEST=Apply full patch set and UCM, verify basic audio works.
Signed-off-by: Kevin Cheng <kevin.cheng@intel.com>
Change-Id: I5bbd58b0e660cdf5089e6a6dd35a757ecf8ec076
Reviewed-on: https://review.coreboot.org/20305
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Soraka uses MPS2949 IMVP8 controller and does not need the VR
workaroud similar to Eve.
BUG=None
TEST=Build & boot on soraka. Ensure IMVP8 controller goes to low power
mode in S3 and S0ix by measuring power.
Change-Id: Ib98bb709ecc9e362a5cef437e7319e41f398a73b
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Reviewed-on: https://review.coreboot.org/20255
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The ChromeEC board directories for auron and rambi have been removed
from the latest version of ChromeEC. Remove them here so the submodule
can be brought forward.
Change-Id: I763d03009f735d3f8aedbeb44788d03714c86102
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20361
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Update the world facing camera sensor to OV13858 and also
add delay of 5ms after xshutdown rising which indicates system
ready status.
BUG=b:38326541
BRANCH=none
TEST=Build and boot soraka. Dump and verify that the generated DSDT table
has the required entries. Verified that sensor probe is successfull.
Change-Id: I0cd535e6568f104ffaa1092a13667def646df0eb
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Reviewed-on: https://review.coreboot.org/20292
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Naresh Solanki <naresh.solanki@intel.com>
Add clock frequency property into _DSD ACPI object and set it
to 19.2MHz for camera sensors. Upstream camera kernel has added
a check for clock frequency in sensor probe function and without
this property sensor probe fails.
BUG=b:38326541
BRANCH=none
TEST=Build and boot poppy. Dump and verify that the generated DSDT table
has the required entries. Verified that sensor probe is successfull.
Change-Id: I147b3c932a33ae034868f7f9b616500d24ca71e3
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Reviewed-on: https://review.coreboot.org/20294
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Naresh Solanki <naresh.solanki@intel.com>
This patch controls the camera devices power through ACPI power resource.
* Add Opregions for PMIC,
* TI_PMIC_POWER_OPREGION
* TI_PMIC_VR_VAL_OPREGION
* TI_PMIC_CLK_OPREGION
* TI_PMIC_CLK_FREQ_OPREGION
* Add power resources for sensors and VCM,
* OVTH for CAM0
* OVFI for CAM1
* VCMP for VCM
* Implement _ON and _OFF methods for sensor and VCM module's power on
and power off sequences.
BUG=b:38326541
BRANCH=none
TEST=Build and boot poppy. Dump and verify that the generated DSDT table
has the required entries.
Change-Id: I87cd0508ed5ed922211a51f43ee96b6f44cf673d
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/20054
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Bind the camera sensor and CIO2 devices through the ports and endpoints
configuration available in _DSD ACPI object.
* Port represents an interface in a device.
* Endpoint represents a connection to that interface.
BUG=b:38326541
BRANCH=none
TEST=Build and boot poppy. Dump and verify that the generated DSDT table
has the required entries.
Change-Id: I6d822165bb9a0cd6f7d4cdcb36333887953110a3
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Reviewed-on: https://review.coreboot.org/20053
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Enable RT8168_GET_MAC_FROM_VPD in fizz Kconfig.
BUG=b:62090148, b:35775024
BRANCH=None
TEST=Boot to kernel. Insert mac address into VPD
vpd -s ethernet_mac=<address>
reboot the system.
Ensure we have ip address and corresponding mac
address with ifconfig.
Ensure ethernet controller shows up with lspci.
Change-Id: I00f63dcb56a2c9a4600c8461bc94e06ec5ab2d81
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://review.coreboot.org/20232
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
By default disabled. Will need to add
FIZZ_USE_SPI_TPM config to enable.
BUG=b:62456589, b:35775024
BRANCH=None
TEST=Reboot and ensure that TPM works in verstage
CQ-DEPEND=CL:530184
Change-Id: I14ce73a1c3745c996b79c4d4758ca744e63a46b4
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://review.coreboot.org/20134
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch adds mipi_camera.asl,
* Add TPS68470 PMIC related ACPI objects.
* Add OV cameras related ACPI objects.
* Add Dongwoon AF DAC related ACPI objects.
* SSDB: Sensor specific database for camera sensor.
* CAMD: ACPI object to specify the camera device type.
BUG=b:38326541
BRANCH=none
TEST=Build and boot poppy. Dump and verify that the generated DSDT table
has the required entries.
Change-Id: If32a2a8313488d2f50aad3feaa79e17b1d06c80f
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/19621
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The differential signal of DQS needs to keep low
level before gate training. RPULL will connect
4Kn from PADP to VSS and a 4Kn from PADN to
VDDQ to ensure it. But if it has PHY side ODT
connected at this time, it will change the DQS
signal level. So it needs to disable PHY side ODT
when doing gate training.
BRANCH=None
BUG=None
TEST=boot from bob
Change-Id: I56ace8375067aa0bb54d558bc28172b431b92ca5
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: cb024042c7297a6b17c41cf650990cd342b1376f
Original-Change-Id: I33cf743c3793a2765a21e5121ce7351410b9e19d
Original-Signed-off-by: Lin Huang <hl@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/448278
Original-Commit-Ready: Caesar Wang <wxt@rock-chips.com>
Original-Tested-by: Caesar Wang <wxt@rock-chips.com>
Original-Reviewed-by: Derek Basehore <dbasehore@chromium.org>
Reviewed-on: https://review.coreboot.org/18582
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Use a GNVS variable to store the trackpad interrupt, in order to
support both SNB and IVB variants from a single build.
Change-Id: I53df35fff41f52a7d142aea9b1b590c65195bcfd
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20093
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Martin Roth <martinroth@google.com>
The board dutifully registers an int15h handler and provides the
defaults to add a VGABIOS.
That should be good enough to initialize graphics through the VGABIOS
file.
Fixes build on Chrome OS configurations (at least until the Ada toolchain
situation is resolved over there).
Change-Id: I1d956b5a163b7cdf2bd467197fba95f16e5e8fa3
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/20218
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
As the hardware designed on gru, the AP_I2C_TP_PU_EN (gpio3_b4) controlled
the SCL/SDA status to avoid leakage. And the gpio3_b4 of rk3399 pull
resistor is 26k~71k and 3.3v for supply power, and gpio3_b4 pin connected
2.2k resistor to i2c of TP device.
The default of this gpio status is pulled up during the start to bootup,
it's very weak drive for the TP device that maybe cause to trigger the
recovery process of elan's firmware.
Also, the Elan updated its firmware(102.0.5.0) to delay checking the
i2c of touchpad is greater than 1 second.
So we have to drive the stronger pull-up within 1 second of powering up
the touchpad to prevent its firmware from falling into recovery.
Change-Id: I9a67d1c041afafde24ed9f00716ba41a9b41a8da
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-on: https://review.coreboot.org/19863
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
TEST=Verified that board still boots to OS without any error.
Change-Id: I02d2a6cbcab92766a35993bfd20aaeed4ca22c90
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/20143
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Now that we dynamically disable TPM interface based on config options,
add support for generation of SPI TPM ACPI node if SPI TPM is used.
Change-Id: I87d28a42b48ba916c70e45a061c5efd91a8a59bf
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/20142
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Based on the config options selected, decide at runtime which TPM
interface should be disabled so that ACPI tables are not generated for
that interface.
TEST=Verified that unused interface does not show up in ACPI tables.
Change-Id: Iee8f49e484ed024c549f60c88d874c08873b75cb
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/20141
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
There are many good reasons why we may want to run some sort of generic
callback before we're executing a reset. Unfortunateley, that is really
hard right now: code that wants to reset simply calls the hard_reset()
function (or one of its ill-differentiated cousins) which is directly
implemented by a myriad of different mainboards, northbridges, SoCs,
etc. More recent x86 SoCs have tried to solve the problem in their own
little corner of soc/intel/common, but it's really something that would
benefit all of coreboot.
This patch expands the concept onto all boards: hard_reset() and friends
get implemented in a generic location where they can run hooks before
calling the platform-specific implementation that is now called
do_hard_reset(). The existing Intel reset_prepare() gets generalized as
soc_reset_prepare() (and other hooks for arch, mainboard, etc. can now
easily be added later if necessary). We will also use this central point
to ensure all platforms flush their cache before reset, which is
generally useful for all cases where we're trying to persist information
in RAM across reboots (like the new persistent CBMEM console does).
Also remove cpu_reset() completely since it's not used anywhere and
doesn't seem very useful compared to the others.
Change-Id: I41b89ce4a923102f0748922496e1dd9bce8a610f
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/19789
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
