In function smm_setup_structures(), the function name is used in a print
string. Use __func__ instead.
BUG=b:117642170
TEST=Build grunt.
Change-Id: Icac5ea997289ef75fb246a09715cbca4442a57f4
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29154
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Comparison should place the constant on the right side. Southbridge.c has 6
instances where the opposite happens. Reverse the order of six comparisons
to eliminate checkpatch warnings:
WARNING: Comparisons should place the constant on the right side of the test
BUG=b:117656929
TEST=Build grunt.
Change-Id: I94f17b81f845fa94599f93c0be1144ffcb8e4165
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29153
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
File smbus_spd.c has 2 instances of if()/else where the if tests for an
error condition and returns just before the "else" statement. These "else"
statements are not needed.
BUG=b:117648025
TEST=Build and boot grunt.
Change-Id: Ie8298773ae455dbb1125420ec65df24f3c65eb44
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29152
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change replaces use of post codes 0x34 and 0x36 in fsp drivers to
instead use POST_MEM_PREINIT_PREP_{START,END} to make it easy to
search from where these post codes are generated during boot flow.
Additionally, it adds POST_MEM_PREINIT_PREP_END to fsp2_0 memory_init
to make it consistent with fsp1_1 memory init.
Change-Id: I307ada1679f212c424e9f7ad2c9d254e24f41fd3
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/29151
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This change adds two new post codes to indicate start and end of
memory param preparation in callbacks to SoC/mainboard code:
1. 0x34: Start of memory preparation
2. 0x36: End of memory preparation
These post codes are already used in coreboot. This change just
ensures that the codes are defined in post_codes.h for easy lookup.
These post codes are useful if SoC/mainboard decides to do a reset of
the platform before returning back to memory initialization.
Change-Id: I065518caedb7943d960a8a5c8708823b8eb3246d
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/29150
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Apparently coreboot still uses magic numbers instead of macros in some
Lenovo mainboards. Let's use macros instead. Also removed FDD from l520
romstage (original value, 0x3c0c, means that FDD_LPC_EN was also
enabled).
Change-Id: I6468e3357f8eed434f8527a852e134380f486d9a
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/28976
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
In Skylake/Kabylake, if ACPI PM timer is disabled then TCO also gets
disabled & vice versa.
FSP default config for EnableTcoTimer is disabled, this caused ACPI PM
timer & TCO to be disabled by FSP even when config PmTimerDisable = 0.
Thus update FSPS UPD EnableTcoTimer in accordance to devicetree config
PmTimerDisable.
BUG=None
TEST= Build for Soraka with PmTimerDisable=0 & check if TCO caused
reboot after running shell command: cat >> /dev/watchdog0
Change-Id: Ia146761036c9dbaef3c02c9a7122ae3dcdef7bdd
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/29108
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
This file was extracted directly from the vendor's firmware ver. 2.27.
Change-Id: Ic2d2b259f3b535a791c9dcfdf962c03a0bab87a2
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/29148
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
- CNL PCH-H has 12 GPIO groups which are grouped under 5 gpio communities.
- Add gpio pin definitions for CNP-H and related changes.
- Add gpio device name, host software ownership reg offset for CNP-H.
BUG: none
TEST: build and flash, boot to windows and yocto os on both CFL RVP8 &
RVP11 and verify power management, IO device functionalities
work fine.
Change-Id: I496ec059de125b97c646581bbd3b8bfe6ffa641e
Signed-off-by: praveen hodagatta pranesh <praveenx.hodagatta.pranesh@intel.com>
Reviewed-on: https://review.coreboot.org/28890
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Cannon lake PCH-H is added to support coffee lake RVP11 and coffee lake
RVP8 platforms.
- Add new device IDs for LPC, PCIE, PMC, I2C, UART, SMBUS, XHCI, P2SB,
SRAM, AUDIO, CSE0, XDCI, SD, MCH and graphics device.
- Add new device IDs to intel common code respectively.
- Add CPU, LPC, GD, MCH entry to report_platform.c to identify RVP11 & RVP8.
- CNL PCH-H supports 24 pcie root ports and 4 I2C controllers, hence chip.c
is modified accordingly.
- Add board type UserBd UPD to BOARD_TYPE_DESKTOP for both RVP11 & RVP8.
BUG=None
TEST=successfully boot both CFL RVP11 & RVP8, verified all the enabled devices
are enumerated and cross checked devices ids in serial logs and UEFI shell.
Change-Id: I4b6af88d467382250aecb4102878b1c5af92ccd4
Signed-off-by: praveen hodagatta pranesh <praveenx.hodagatta.pranesh@intel.com>
Reviewed-on: https://review.coreboot.org/28718
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
- Add new mainboard variant coffee lake RVP8, which is CRB for
coffee lake-s processor, support U-DIMM DDR4 memory module.
- Modify cfl_h devicetree to enable IO devices, configure PCIE root
port clock source, usb over current pin as per board schematics.
- Select cannonlake PCH-H chipset config for both cfl_h & cfl_s.
- Add GPIO table as per board schematics.
BUG= None
TEST= Build and flash, confirm boot into yocoto & windows OS on both
cfl RVP11 & RVP8 platform. verified PCI, USB, ethernet, SATA,
display, power functionalities.
Change-Id: Iabd32eb43ee8e6b1a3993ba4e083a80c62485b14
Signed-off-by: praveen hodagatta pranesh <praveenx.hodagatta.pranesh@intel.com>
Reviewed-on: https://review.coreboot.org/29066
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
L520 and T420 should also use it - platforms are very similar to t420s
and t530. Z61t is based on T60/X60, X131e is based on X230 so commit
with Change-Id I13c08b8c6b1bf0f3deb25a464b26880d8469c005 should be
applied as well.
All four platforms are using ec/lenovo/h8 embedded controller.
Change-Id: Ib177f024871e82979dd430da86f1551aef14d446
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/29064
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch implements SoC-specific defines of mt8183 and links the
common code to support USB.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui
Change-Id: I1224cf24f92b07f3c1814f1cbfef96aafa5a992b
Signed-off-by: Jumin Li <jumin.li@mediatek.com>
Reviewed-on: https://review.coreboot.org/28787
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Joel Kitching <kitching@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Refactor USB code which will be reused among similar SoCs.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Elm
Change-Id: I06fefb4149a489be991e13ddf624082d11e31765
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/28786
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
There is no need to indent these lines with two tabs.
Change-Id: I2164f4e3ea48db8dc5242a55b0452782dae19a4b
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/28989
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
The assignment of header->checksum was in some cases done twice, or
unnecessarily split into two lines.
Change-Id: Ib0c0890d7589e6a24b11e9bda10e6969c7d73c56
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/28988
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
While these pins were set to a pull-down 20KOhm, NPCX EC consumes
~2.1mW higher power. Becasue there was leakage current on both GPIO67
and GPIO70 from NPCX EC. With the external pull-up 10KOhm for
USB_OC0#/USB2_OC1#, this wasn't enough to prevent leakage current.
BUG=b:117139495
TEST=Check nxpc EC power to see power improvement
Change-Id: I685d876461c263f07ca4c8f8046635cb7087279c
Signed-off-by: Roy Mingi Park <roy.mingi.park@intel.com>
Reviewed-on: https://review.coreboot.org/29007
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Pratikkumar V Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
CPU_MICROCODE_CBFS_LEN and CPU_MICROCODE_CBFS_LOC configs pass the CPU
microcode length and base address in CBFS to FSPT binary as init parameters.
Add new config FSP_T_XIP in Kconfig, which is selected by platform config.
If FSP_T_XIP is selected, then relocate FSPT binary while adding it in CBFS
so that it can be executed in place.
BUG= None
TEST= Build for both CFL RVP11 & RVP8 and verified for successfull CAR setup.
Change-Id: Ic46e0bb9ee13c38ff322979119c4813653c61029
Signed-off-by: praveen hodagatta pranesh <praveenx.hodagatta.pranesh@intel.com>
Reviewed-on: https://review.coreboot.org/28985
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Update CPU passive temperature threshold value from 70C to 80C,
to avoid early throttling for spiky workloads. Also, change CPU
throttling interval from 1 sec to 5 sec for CPU temperature.
BUG=b:116400298
BRANCH=None
TEST=Manual performance testing on nocturne.
Change-Id: Ic5031a4aa16f750237565f4e4928e78834b1d686
Signed-off-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-on: https://review.coreboot.org/29044
Reviewed-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
It always included if ACPI is supported since commit 822bc65 with
Change-Id I372dbd03101030c904dab153552a1291f3b63518 ("ACPI: Remove
CONFIG_GENERATE_ACPI_TABLES").
Change-Id: If17a6f43e368ccf850031b349714fa1ec4d02c1d
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/28954
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Since there are two cameras on Nami and only one camera on Syndra.
We need to disable rear camera/DMIC on all Syndra sku.
BUG=b:112876867
Change-Id: I92fb43ec84387c268ffdb6d0d34a5e5b13bcf50a
Signed-off-by: Amanda Huang <amanda_hwang@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/29022
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
For debugging purposes always set the pciaddr attribute.
Tested on Lenovo T500.
Change-Id: I83a0e7f7196ed251fa0becc4e56bef3ca68f20f4
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/18599
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This define is no longer used by anyone. It was removed everywhere else
with commit with Change-Id I556769e5e28b83e7465e3db689e26c8c0ab44757.
It seems that these two files were simply mislooked. So let's remove it.
Change-Id: Ifbb62441e16e97c0cae0713968844e296619a880
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/29070
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This mainboard is quite similar to the p5qc. The main differences being a second
PEG slot, the IDE slot and being DDR2 only.
The following was tested:
- both PEG slots populated (coreboot sets legacy VGA decoding on the GPU in the
black slot)
- USB
- Ethernet NIC
- PS2 Keyboard
- COM1
- S3 resume
Change-Id: I49a4bca4256e2a905aff3252eca76387c81152c1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/29102
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
A shortcoming of this driver is that if multiple devices with the same PCI ID
are present and don't have an eeprom, they would all get the same macadress set.
The r8168 driver deals with such cases so it should be easy to implement if
needed.
Change-Id: I5c32df00e25453c350a45e7f1ee6834b89c4289f
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/28265
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
SeaBIOS does not seem to like the Marvel IDE controller, so disabled SeaBIOS
support for ATA. It works fine in Linux afterwards.
Working:
- SATA on southbridge port
- SATA on marvel IDE controller ports (only in Linux)
- USB
- COM1
- PS2 Keyboard
- DDR2 DIMMs
- PCIe x16 PEG port
- PCI port
- NIC (needs a driver to set macaddress)
- S3 resume
Not working:
- SeaBIOS with ATA support (long timeout marvel controller so disabled)
- DDR3 fails because the proper clock signal does not get enabled. Even when
fixing this it fails later or during memtest, so it should be considered
unsupported for now
Untested:
- PCIe x1 ports (expected to work)
- sound (expected to work)
TODO:
add documentation
Change-Id: I4a81940707566776bd048904ca1387fea741fece
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/28264
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
More platforms are not able to hibernate under certain circumstances,
such as when AC is plugged. This original path was conservatively put in
to prevent potential damage when cr50-update-caused asynchronous resets
occur. Julius' compelling argument that async resets from recovery mode
requests should have enough coverage of the design over the course of
project development. Remove the hibernate path and assume all is well
going forward.
Change-Id: I37121e75ff4e6abcb41d8534a1eccf0788ce2ea2
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/29076
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
It looks like on the ASUS P5QC has 0 in this CAPID field while still supporting
TCK_666MHZ.
Change-Id: Id1a94d91434dbe782fcc56dad56fcaee4e78463b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/29101
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
While during the read training itself only the settings for rank 0 are used for
all ranks, the controller does use the separate settings for each rank later on.
It is unknown which register is responsible for this.
The signals are probably not generated separately and therefore need to have the
same settings for all ranks. Therefore program the results for all ranks instead
of for all populated ranks.
TESTED: Fixes DG43GT not booting with only the second DIMM slot of a channel
populated.
Change-Id: I7965a068ef4779847e62e966154764370c91302a
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/28577
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Fix a typo and make comments more consistent (start with
capital letter).
BUG=None
TEST=None
Change-Id: I97bff5e05596fc6973f0729e276a2e45b291120d
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/29025
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
Make #define definitions for PMxEF and replace the hardcoded values.
Note that this doesn't change the current functionality of the source.
The existing code has been propogated from the sb//hudson port, which
seems to attempt to enable 100% of all OHCI and EHCI controllers that
may be present in the system.
Change-Id: I6018b0062730de19e3283a010144dfedc2b11423
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29075
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Remove nonpreset controllers from the PCI device identifier function
(ignoring any CONFIG_USBDEBUG_HCD_INDEX). The extra devices appear
to be holdovers from the original sb/hudson source.
TEST=Jam Makefile.inc to unconditionally build enable_usbdebug.c and
verify proper BDF is returned in romstage and ramstage.
Change-Id: I2e819d5e998922ad427c4a094c29a590f249a0d3
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29074
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Delete an unmatched opening parenthesis in the definition for the EHCI
hub config register definition. This wasn't causing a problem unless
EHCI debug was enabled.
TEST=Jam Makefile.inc to unconditionally build enable_usbdebug.c and
verify successful build
Change-Id: I5f461d1573e416b5a8ee24329142e3c46b6a05e3
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29073
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This is a no-op on non-FSP systems, but enables using it when supported.
Change-Id: I66fe9b8587753ea017e13a752a7728e47287e9a0
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/28776
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
With https://github.com/IntelFsp/FSP/pull/4 merged, this allows using
Intel's FSP repo (that we mirror) to build a complete BIOS ifd region
with a simple coreboot build, automatically drawing in headers and
binaries.
This commit covers Apollolake, Coffeelake, Skylake, and Kabylake.
Skylake is using Kabylake's FSP since its own is FSP 1.1 and Kabylake's
also supports Skylake.
Another candidate (given 3rdparty/fsp's content) is Denverton NS, but
it requires changes to coreboot's FSP bindings to become compatible.
Cannonlake, Whiskeylake require an FSP release.
Change-Id: I8d838ca6555348ce877f54e95907e9fdf6b9f2e7
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/28593
Reviewed-by: Pratikkumar V Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-by: Naresh Solanki <naresh.solanki@intel.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch adds remote GDB support for the arm64 architecture.
Change-Id: I2fa4dbca6c39f822f489a5e81bd052f53fda98a5
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/29020
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The arm32 GDB architecture code contains a little hack that allows it to
(sort of) correctly deal with a reentrant exception triggered from
within the GDB stub. The main logic for this isn't really arm32 specific
and could be useful for other architectures as well, so factor it out
into a separate function.
Change-Id: I3c6db8cecf1e86bba23de6fd2ac9fdf0cf69d3c6
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/29019
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This patch reworks the arm64 exception handling to be more similar to
how it works on arm32. This includes a bunch of features like actually
saving and restoring more exception state in the exception_state
structure and supporting the same sort of partial reentrancy that is
useful for GDB. Since there's no instruction to directly load into or
store out of SP on arm64, we can't do quite the same thing where we use
that to read an exception_state_ptr variable right after exception entry
when no other register is available. But we can do something very
similar by (ab-)using the "high" stack pointer (SP_EL2) as a pointer to
the exception_state struct and providing a function to change it.
Change-Id: Ia16a1124be1824392a309ae1f4cb031547d184c1
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/29018
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This patch adds the new, faster architectural register accessors to
libpayload that were already added to coreboot in CB:27881. It also
hardcodes the assumption that coreboot payloads run at EL2, which has
already been hardcoded in coreboot with CB:27880 (see rationale there).
This means we can drop all the read_current/write_current stuff which
added a lot of unnecessary helpers to check the current exception level.
This patch breaks payloads that used read_current/write_current
accessors, but it seems unlikely that many payloads deal with this stuff
anyway, and it should be a trivial fix (just replace them with the
respective _el2 versions).
Also add accessors for a couple of more registers that are required to
enable debug mode while I'm here.
Change-Id: Ic9dfa48411f3805747613f03611f8a134a51cc46
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/29017
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Richard Spiegel