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This follows the ICH7 datasheets.
Change-Id: Ic8f6db8556662b03efead8c1b9e3074ffe24cd8b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36201
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Use uintptr_t instead of uint32_t to fix compilation on x86_64.
Change-Id: I5584f849202c0a833c751a80bdd9a8f86c60169a
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36172
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I0c965e598e260ff8129aa07fb9fc5bf6e784e1d8
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36057
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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Dead increment spotted out using clang-tools.
Change-Id: I631524b9346647048fe8ea30387553a5b4651f59
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36129
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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It is similar to X200s, with U-series CPU, slightly different gpio
setup, no docking support, and no superio chip.
Tested:
- CPU Core 2 Duo U9400
- Slotted DIMM 4GiB*2 from samsung
- Camera
- pci-e slots
- sata and usb2
- libgfxinit-based graphic init
- NVRAM options for North and South bridges
- Sound
- Thinkpad EC
- S3
- Linux 4.19.67-2 within Debian GNU/Linux stable, loaded from
Linux payload (Heads) and Seabios.
TODO: repurpose and/or rename flag H8_DOCK_EARLY_INIT (introduced in
CB:4294 ) for h8-using devices without a dock.
Change-Id: Ic6a6059ccf15dd2e43ed4fc490c1d3c36aa1e817
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36093
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: Ic90dcff9d0b49a75a26556e4a1884a2954ef68f6
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36063
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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During the raminit the CPU gets reset, so reprogram those bits in
PM1_CNT such that the CPU remains aware that this is a S3 resume path
after the reset.
Change-Id: I8f5cafa235c8ab0d0a59fbeeee3465ebca4cc5d0
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36038
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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This sets up some common default LPC decode ranges in a common place.
This may set up more decode ranges than needed but that typically does
not hurt. Mainboards needing additional ranges can do so in the
mainboard pch_enable_lpc hook.
Change-Id: Ifeb5a862e56f415aa847d0118a33a31537ab8037
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33549
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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This does the following:
- Add gen[1-4]_dec options to the devicetree to set up generic LPC
decode ranges in the southbridge code.
- Move setting up some default decode ranges to a common place. If
somehow a board needs to override this behavior it can happen in the
mb_setup_superio() hook (that will be renamed when moving to
C_ENVIRONMENT_BOOTBLOCK).
Change-Id: I3d904b1125bc410c11aa73a89b1969284e88dac1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35991
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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A few notable changes:
- Microcode init is done in assembly during the CAR init.
- The DCACHE_BSP_STACK_SIZE is set to 0x2000, which is the same size
against which the romstage stack guards protected.
- The romstage mainboard_lpc_init() hook is removed in favor of the
existing bootblock_mainboard_early_init().
Change-Id: Iccd7ceaa35db49e170bfb901bbff1c1a11223c63
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35951
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Some of the initialization isn't necessary before console INIT is
done.
EHCI debug still works fine on the Lenovo Thinkpad X201.
Change-Id: I0c33efd98844f7188e0258cf9f90049d45145e7c
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35949
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Some boards with the G41 chipset lacked programming CIR, so this
change add that to those boards too.
Change-Id: Ia10c050785170fc743f7aef918f4849dbdd6840e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35795
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
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This is now done during the romstage.
Change-Id: I7c1a848ae871ffb73c09ee88f96331d6b823e39d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34978
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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Minimize use of hard-coded value for acpi_table_header->length to soft
code. Replace length of acpi_header_t with sizeof(acpi_fadt_t).
Change-Id: Ibcae72e8f02497719fcd3f180838557e8e9abd38
Signed-off-by: Himanshu Sahdev <himanshusah@hcl.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35540
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
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Devices behind LPC can expose more buses (e.g. I2C on a super-i/o).
So we should scan buses on LPC devices, too.
Change-Id: I0eb005e41b9168fffc344ee8e666d43b605a30ba
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29474
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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RCBA_HPTC needs to be read back to consistently enable HPET.
This ought to fix raminit failing sometimes and SeaBIOS endlessly
waiting for user input.
TESTED on Intel D510MO, Fixes SeaBIOS waiting for input, without a
timeout.
Change-Id: I20a25fd97cd09fedb70469262c64d8d3828bb684
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35758
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change does the following:
- Move PCH init code from the common romstage to sb code, this allows
for easier reuse in bootblock
- Provide a common minimal LPC io decode setup, mainboards can
override this in the mainboard_lpc_init if required
- Set up LPC generic IO decode up in romstage based on devicetree
settings
- Remove the ramstage LPC generic IO decode from ramstage as this is
now done in romstage.c
- Get rid of unneeded setup of spi_read configuration in BIOS_CNTL as
this is already done in the bootblock.
Change-Id: I3f448ad1fdc445c4c1fedbc8497e1025af111412
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35772
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Move the mainboard_romstage_entry to a common location and provide
mainboard specific callbacks.
Change-Id: Ia827053617cead5d2cf8e9f06cb68c2cbb668ca9
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35771
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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This is based on the sandybridge settings.
The current lookup table comes from the x201 vendor lookup table.
Tested: USB mouse and webcam still work and current registers are the
same as before. USB IR are not but the code follows EDS instead of the
register replay.
Change-Id: Icea9673623a62e7039d5700100a2ee238478abd1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35762
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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RCBA_HPTC needs to be read back to properly work.
This fixes SeaBIOS endlessly waiting for input instead of booting the
default entry. Linux already fixes this itself.
Change-Id: I22b8b34924f2add2185ec46470c1559bf2fb6d58
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35757
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This does the following:
- implement a PCH disable function that will be called by the PCI
drivers as part of their chip_ops
- removes the iobp_x calls as those don't exist on ibexpeak
- complete the devicetree with to be disabled PCI devices for the
chip_ops to be called
- Clean up some code copied from bd82x6x
Change-Id: I78d25ffe9af482c77d397a9fdb4f0127e40baddc
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35753
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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This properly sets up the chipset initialization registers, instead of
replaying an RCBA dump.
The information is taken from the EDS and from the thinkpad x201
vendor BIOS disassembly and from an HP UEFI.
TESTED on Thinkpad X201. Seems stable at booting, rebooting and resume
from S3.
Change-Id: I21c2beaf70da27dbe6a56e2612df2c257c05fc62
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35439
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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The extra PCI bus RST# and 200ms delay there was workaround
for custom add-on hardware.
Change-Id: I38c4677cfb41d620498be8e0c257b517995bad5c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35765
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Change-Id: Ibd5cd2afc8e41cc50abdda0fb7d063073c3acdc1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35678
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Intel adopted xx_DEVFN_xx naming for macros expanding to
PCI_DEVFN() starting with apollolake. The ones named
xx_DEV_FUNC are being renamed, or dropped, if they
were generally not used at all for a platform.
Change-Id: I6ead2bc5e41a86c9aeef730f5664a30406414c8c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35730
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
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Minimize use of hard-coded value for acpi_table_header->revision to soft
code. Replace with macro defined in arch/acpi.h for FADT and with the
get_acpi_table_revision function for SSDT.
Change-Id: I99e59afc1a87203499d2da6dedaedfa643ca7eac
Signed-off-by: Sourabh Kashyap <Sourabhka@hcl.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35539
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Auto-discoverable PCI devices do not require field .enable_dev
of chip_operations to be set. They are matched with PCI drivers
by the use of PCI vendor and device ID fields.
The name given for the chip_operations struct must match the
pathname the way it is present in the devicetree.cb files. If
there was no match, util/sconfig would currently choose to
use the empty weak declaration it creates in static.c file.
Change-Id: I684a087a1f8ee4e1a5fd83450cd371fcfdbb6847
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35096
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
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Add new config option to validate the Intel firmware descriptor against
the fmap layout. This will prevent a firmware descriptor from being used
that could corrupt regions of the bootimage in certian circumstances.
BUG=chromium:992215
TEST=Build firmware image with mismached decriptor and fmp
Without VALIDATE_INTEL_DESCRIPTOR set firmware builds
With VALIDATE_INTEL_DESCRIPTOR set error is shown with mismached
regions
Change-Id: I9e8bb20485e96026cd594cf4e9d6b11b2bf20e1f
Signed-off-by: Mathew King <mathewk@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34816
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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An original code had a wrong register address 0x27 for AHCI BAR.
The value was aligned incidentally by the code specific of
the pci_read_config32 function to the correct address 0x24.
All 0x24 values in sata.c were changed to the symbolic name
PCI_BASE_ADDRESS_5 and the code was optimized.
An equivalent code was tested on a real hardware.
Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Change-Id: I33509befe86ff6e333c559c87a0f45886d737df9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35737
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I953e9a7746232b4c40deca55eb6cb3bd7af91496
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35727
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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TESTED on Asus P5QC.
Change-Id: I20b87f3dcb898656ad31478820dd5153e4053cb2
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/30012
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This is a PCI standard register, no need to alias its
definitions under different names.
Change-Id: Iea6b198dd70fe1e49b5dc0824dba62628dedc69a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35521
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Implementation of ich_pci_dev_enable_resources() used to have
a custom implementation to program PCI subsystem IDs for the
(legacy) PCI bus bridge.
With the local implementation removed, we no longer need the
custom .enable_resources callback.
Change-Id: I6f73fd0e4d5a1829d1555455c9a143f1d18a6116
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35673
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Petr Cvek <petrcvekcz@gmail.com>
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Many supported SST flashes use the AAI OP (0xad) to write.
TESTED on Thinkpad X60 with SST25VF016B, flashrom can use AAI_WRITE op
with locked down SPIOPS.
Change-Id: Ica72eda04a8d9f4e563987871b1640565c6e7e12
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35537
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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This also reworks the interface to override OPs from the devicetree to
match the interface in sb/intel/common/spi.
Change-Id: I534e989279d771ec4c0249af325bc3b30a661145
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33040
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Change-Id: Ie3f3c043daa6ec18ed14929668e5acae172177b3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35603
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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CB:29633 switched platform to use sb/common spi implementation,
which worked until CAR_GLOBAL was removed in CB:30506.
Revert the changes back to usage of CAR_GLOBAL in the common spi
driver so that flashconsole will work again in romsatge for
fsp_broadwell_de.
Test: verify flashconsole functional on out-of-tree Broadwell-DE board
Change-Id: I72e5db1583199b5ca4b6ec54661282544d326f0f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32880
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: I024805769ad05f995a23669a82f5482ce3e7ae70
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35520
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Change-Id: I9fbefac3bef7425d6f5ea1bcc01eb21485315c36
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35517
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Michael Niewöhner
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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As we redirect all `dd` output to /dev/null (it would clutter the
console otherwise), there is no error message if a binary to be
added isn't found. If we add them as dependency, OTOH, `make` will
complain properly.
Change-Id: I40c3979b84341cb88c7e9a5084c1a97230ea5503
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33327
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: Ia9a6b0c7f2a07796f850acd2349067ba5e5eb735
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35453
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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../bd82x6x/early_usb.c: While ibexpeak needs an equivalent of this
code, it is not currently hooked up.
../common/gpio.c: Already linked in common/Makefile.inc
Change-Id: I980601e2302f2c412e823fef5fb9a69b9e151322
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35437
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I4f38be28d81c0c01c0389210552232e63ea55545
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34934
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I8578cf365addc47550e27c9ebed08de340d70ede
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33531
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I898188d31fcfd153eb95d0a7324fa9fd85316e3c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35373
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Change-Id: Ifa88e3fd824ec57c21de5967e1634c8823fe0fbb
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33730
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: David Guckian
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Remove cases of __PRE_RAM__ and other preprocessor guards.
Change-Id: Id295227df344fb209d7d5fd12e82aa450198bbb8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34928
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: David Guckian
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I52a7b39566acd64ac21a345046675e05649a40f5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34980
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Variable length arrays were a feature added in C99 that allows the
length of an array to be determined at runtime. Eg.
int sum(size_t n) {
int arr[n];
...
}
This adds a small amount of runtime overhead, but is also very
dangerous, since it allows use of an unlimited amount of stack memory,
potentially leading to stack overflow. This is only worsened in
coreboot, which often has very little stack space to begin with. Citing
concerns like this, all instances of VLA's were recently removed from the
Linux kernel. In the immortal words of Linus Torvalds [0],
AND USING VLA'S IS ACTIVELY STUPID! It generates much more code, and
much _slower_ code (and more fragile code), than just using a fixed
key size would have done. [...] Anyway, some of these are definitely
easy to just fix, and using VLA's is actively bad not just for
security worries, but simply because VLA's are a really horribly bad
idea in general in the kernel.
This patch follows suit and zaps all VLA's in coreboot. Some of the
existing VLA's are accidental ones, and all but one can be replaced with
small fixed-size buffers. The single tricky exception is in the SPI
controller interface, which will require a rewrite of old drivers
to remove [1].
[0] https://lkml.org/lkml/2018/3/7/621
[1] https://ticket.coreboot.org/issues/217
Change-Id: I7d9d1ddadbf1cee5f695165bbe3f0effb7bd32b9
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33821
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Rename southbridge_smm_X to smm_southbridge_X.
Rename most southcluster_smm_X to smm_southbridge_X.
Change-Id: I4f6f9207ba32cf51d75b9ca9230e38310a33a311
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34856
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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