According to ACPI 6.1 spec 19.6.44, External informs compiler that
object is external to this TABLE, no necessary for object in same DSDT
tables.
BUG=None
TEST=Build pass Intel mainboard with 20180427 iasl.
Change-Id: I153e7d0e97f9a29919676fbb73a7c26fd22f252c
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/26045
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Currently the thermal event handler method TEVT is defined as an extern,
then defined again in platforms with thermal event handling. In newer
versions of IASL, this generates an error, as the method is defined in
two places. Simply removing the extern causes the call to it to fail on
platforms where it isn't actually defined, so add a preprocessor define
where it's implemented, and only call the method on those platforms.
Change-Id: I64dcd2918d14f75ad3c356b321250bfa9d92c8a5
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/25916
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
CONFIG_ALT_CBFS_LOAD_PAYLOAD has long since been removed.
Clean up the remnants in braswell.
Change-Id: I88483a4c3a74ed0c7defacf872b1564c3ce7f909
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/25899
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Julius brought up confusion about the current spi api in [1]. In order
alleviate the confusion stemming from supporting x86 spi flash
controllers:
- Remove spi_xfer_two_vectors() which was fusing transactions to
accomodate the limitations of the spi controllers themselves.
- Add spi_flash_vector_helper() for the x86 spi flash controllers to
utilize in validating driver/controller current assumptions.
- Remove the xfer() callback in the x86 spi flash drivers which
will trigger an error as these controllers can't support the api.
[1] https://mail.coreboot.org/pipermail/coreboot/2018-April/086561.html
Change-Id: Id88adc6ad5234c29a739d43521c5f344bb7d3217
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/25745
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Add global/ACPI nvs variables required for IGD OpRegion.
Add functions necessary to save the ACPI OpRegion table
address in ASLB, and restore table address upon S3 resume.
Implementation modeled on existing Baytrail code.
Test: boot Windows 10 on google/edgar with Tianocore payload and
GOP display init, observe display driver loaded and functional,
display not black screen when resuming from S3 suspend.
Change-Id: I7c1fbf818510949420f70e93ed4780e94e598508
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/25197
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Get rid of custom opregion implementation and use drivers/intel/gma/opregion
implementation instead.
Test: boot Windows 10 on google/chell and google/edgar using Tianocore
payload with GOP init, observe Intel graphics driver loaded and functional.
Change-Id: I5f78e9030df12da5369d142dda5c59e576ebcef7
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21703
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
coreboot's PCI resource allocator doesn't assign BAR1 for
Braswell's LPE device because it doesn't exist, but is
required by Windows drivers for the device to function.
Manually add the required resource via the existing
lpe_read_resources function, and marked it as IORESOURCE_STORED
so pci_dev_set_resources ignores it.
TEST: boot Windows 10 on google/edgar, observe that memory resources
are properly assigned to LPE driver for BAR1 and no error reported.
Change-Id: Iaa68319da5fb999fe8d73792eaee692cce60c8a2
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21103
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Allows eMMC in PCI mode to be seen/used by Windows.
Test: boot Windows installer on google/edgar, observe internal
eMMC storage available for installation when eMMC in PCI (vs ACPI) mode.
Change-Id: I4272c198e5e675f451a1f4de5d46e3cd96371446
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/24988
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The LPEA device memory resources, required by Windows drivers,
were not being set. Allocate required resources per Inte'sl CHT
Tianocore reference code.
Test: boot Windows on google/edgar, observe LPEA device working properly.
Change-Id: Ic3ecfc2ddade7d76dbaa95ffdd82599c3bcf35da
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/24987
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Increase memory allocated for the LPEA firmware from 1MiB to 2MiB
to match Intel CHT reference code and fix Windows functionality.
Test: boot Windows on google/edgar, observe no error in Device Manager
for LPEA audio device due to BAR2 resource allocation.
Change-Id: I7cffcdd83a66a922c2454488c8650df03c9f5097
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/24986
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Without PMAX correctly set, the calculation for PLEN is incorrect,
leading to a Windows BSOD on boot. Correct PMAX using code from
Baytrail SoC, setting PMAX to (CONFIG_MMCONF_BASE_ADDRESS - 1).
Test: Boot Windows 10 on google/edgar without BSOD.
Change-Id: I4f2f4a0ff3a285826709f9eaafa40b0bf0cafb83
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/24985
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
* Move code from src/lib and src/include into src/security/tpm
* Split TPM TSS 1.2 and 2.0
* Fix header includes
* Add a new directory structure with kconfig and makefile includes
Change-Id: Id15a9aa6bd367560318dfcfd450bf5626ea0ec2b
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/22103
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
There's nothing intel-specific about the current mrc_cache support.
It's logic manages saving non-volatile areas into the boot media.
Therefore, expose it to the rest of the system for any and all to
use.
BUG=b:69614064
Change-Id: I3b331c82a102f88912a3e10507a70207fb20aecc
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/22901
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The Infineon TPM chip used on these platforms doesn't use an IRQ
line; the Linux kernel has been patched to work around this, but better
to remove it completely.
Test: boot linux on google/wolf,lulu,cyan without tpm_tis.interrupts=0
kernel parameter, observe no abnormal delays in boot or resume from S3.
Change-Id: Id510c73cfdc14b7f82b0cc695691b55423185a0b
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22582
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Replace '#ifdef ENABLE_TPM' with '#if IS_ENABLED(CONFIG_LPC_TPM)'
for platforms which use a TPM on the LPC bus, so that the TPM
ACPI code isn't included when the Kconfig option is deselected.
Change-Id: Ia4c0d67dd3b044fe468002dff9eeb4f75f9934f9
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22581
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
There is currently no case where a struct cpu_device_id instance needs
to be modified. Thus, declare all instances as const.
Change-Id: I5ec7460b56d75d255b3451d76a46df76a51d6365
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/22526
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The padding has recently been broken in commit 90ebf96df5
("soc/intel/skylake: Add GNVS variables and include SGX ASL") and fixed
again in commit af88398887 ("soc/intel/skylake: Fix broken GNVS offset
for chromeos"). Avoid this bug in the future.
Change-Id: I1bf3027bba239c8747ad26a3130a7e047d3b8c94
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/22229
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit just moves the vboot sources into
the security directory and fixes kconfig/makefile paths.
Fix vboot2 headers
Change-Id: Icd87f95640186f7a625242a3937e1dd13347eb60
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/22074
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reorder code and put platform specific bits into update_igd_opregion.
Get rid of get_fsp_vbt and init_igd_opregion.
Write GMA opregion in case a VBT was provided, even when no FSP_GOP
is to be run.
Use SOC_INTEL_COMMON_GFX_OPREGION to reduce code duplication.
Change-Id: Ibabeb05a9d3d776b73f6885dcca846d5001116e7
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/20221
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
There's an occasional issue on machines which use CMOS for their
vbnv storage. The machine that just powers up from complete G3
would have had their RTC rail not held up. The contents of vbnv
in CMOS could pass the crc8 though the values could be bad. In
order to fix this introduce two functions:
1. vbnv_init_cmos()
2. vbnv_cmos_failed()
At the start of vboot the CMOS is queried for failure. If there
is a failure indicated then the vbnv data is restored from flash
backup or reset to known values when there is no flash backup.
BUG=b:63054105
Change-Id: I8bd6f28f64a116b84a08ce4779cd4dc73c0f2f3d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/21560
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
In order to prepare for checking RTC failure in the early boot
paths move the rtc failure calculation to pmutil.c and add a helper
function to determine if failure occurred.
BUG=b:63054105
Change-Id: Ic4bf99dc3a26fbc3bd508e484963b9298ef1b24b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/21556
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The original purpose of adjust_cpu_apic_entry() was to set
up an APIC map. That map was effectively only used for mapping
*default* APIC id to CPU number in the SMM handler. The normal
AP startup path didn't need this mapping because it was whoever
won the race got the next cpu number. Instead of statically
calculating (and wrong) just initialize the default APIC id
map when the APs come online. Once the APs are online the SMM
handler is loaded and the mapping is utilized.
Change-Id: Idff3b8cfc17aef0729d3193b4499116a013b7930
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/21452
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Adapted from Chromium commit 9756af8.
Add SOC helper to identify BSW SoC stepping. Will be used to
override USB2 phy setting based on stepping in subsequent commit.
Original-Change-Id: Ic736dd945f01cf9f24af4ce3bd3f2757abfdeb2e
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Keith Tzeng <keith.tzeng@quantatw.com>
Change-Id: Ib2371f85ea84df4b417e25ec8840d317cd918d5f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21371
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Cherry-pick from Chromium commit f92d7be.
This BAR is used in _PS0 and _PS3 methods and is used by kernel driver to put
SD controller in D3
Original-Change-Id: Iae4722cb222f61e96948265f57d6b522065853d9
Original-Signed-off-by: Hannah Williams <hannah.williams@intel.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Duncan Laurie <dlaurie@google.com>
Original-Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Change-Id: I59973226d57fe1dc3da21b2cec1c7b9a713829ab
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21172
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Needed for to-be-added Google Braswell boards which make use
of common GPIO library function to determine installed RAM type.
Change-Id: Ie9b0c6513f10b252bf0a5014bd038d24879421be
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21125
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The SPI controller initialization in finalize_chipset was failing
because FSP was setting FLOCKDN before finalize_chipset was called.
Hence move finalize_chipset to get called from BS_POST_DEVICE so that it is
called before FSP notify function-Ready To Boot state.
TEST: run flashrom with -VVV and observe supported opcodes and SPI
flash chip are reported correctly, and write/erase operations succeeed.
Original-Change-Id: I3c0297f3f2258cf77cf00db367f11ff4d1d9dc77
Original-Signed-off-by: Hannah Williams <hannah.williams@intel.com>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: I690fb4bf9e78bb58811c704179ba8b8f25ce95cc
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20891
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Without RELOCATABLE_RAMSTAGE selected, S3 resume will hang under
Linux and Windows. All other Intel SoCs have this selected by
default, so this change simply corrects an omission on Braswell.
TEST: boot Linux on google/cyan with and without RELOCATABLE_RAMSTAGE
selected; observe that S3 resume fails without and succeeds with.
Change-Id: I9071d9b4e3e3a156281d95fae059947c4c26f744
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20819
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Don't allow the user to set PCIe configspace base address.
Don't allow the user to set the DCACHE size and base.
Change-Id: I7a42cc5f6098214364624bcfa3cbd93b4903ee84
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/20181
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
cherry-pick from Chromium, commit 8fbe1e7
On Braswell and Baytrail devices, by userland 'perf top',
observed demanding clocks on __vdso_clock_gettime() since
chromeos_3.18 kernel; besides, evaluated massive calling of
clock_gettime() cost, up to 700 ns in average.
It turns out that Linux kernel of map_vdso() first call of
remap_pfn_range() does not fall into reserve_pfn_range()
due to size parameter, instead it relies on lookup_memtype()
and potentially be failed to be identified as eligible RAM
resource because the function of pat_pagerange_is_ram() actually
walks through root's sibling.
Meanwhile, on current BSW (and BYT) firmware implementation
makes System RAM resources located on child leaf, combining all
of these factors makes the kernel treat the vvar page of vdso
as a uncached-minus one leading slow access in result.
This patch recollects TOLM accessing; as Aaron recalled some
core_msr_script turns off access to TOLM register, he suggests
to store tolm to avoid getting back a zero while setting acpi
nvs space.
Original-Change-Id: Iad4ffa542b22073cb087100a95169e2d2a52efcd
Original-Signed-off-by: Harry Pan <harry.pan@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/368585
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: Idc9765ec5c0920dc98baeb9267a89bec5cadd5a0
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20060
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Each I2C controller should have a unique pair of DMA request lines,
and DMA channels should be assigned incrementally, rolling over as
necessary.
Source: Intel Braswell UEFI reference code
Change-Id: I1d97b5a07bf732c27caf57904c138b120b93ca81
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20079
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
For an unknown reason, the I2C ACPI devices were placed
under \SB intead of \SB.PCI0, as with all other non-Atom
based Intel platforms. While Linux is tolerant of this,
Windows is not. Correct by moving I2C ACPI devices where
they belong.
Also, adjust I2C devices at board level for intel/strago
and google/cyan as to not break compilation.
Change-Id: Iaf8211bd86d6261ee8c4d9c4262338f7fe19ef43
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/20055
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The new config choice is called RUN_FSP_GOP. Some things had to happen
on the road:
* Drop confusing config GOP_SUPPORT,
* Add HAVE_FSP_GOP to chipsets that support it,
* Make running the GOP an option for FSP2.0 by returning 0
in random VBT getters.
Change-Id: I92f88424004a4c0abf1f39cc02e2a146bddbcedf
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/19815
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This is in preparation to get rid of the strong spi_setup_slave
implemented by different platforms.
BUG=b:38430839
Change-Id: Id3f05a2ea6eb5e31ca607861973d96b507208115
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19778
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
spi_crop_chunk is a property of the SPI controller since it depends
upon the maximum transfer size that is supported by the
controller. Also, it is possible to implement this within spi-generic
layer by obtaining following parameters from the controller:
1. max_xfer_size: Maximum transfer size supported by the controller
(Size of 0 indicates invalid size, and unlimited transfer size is
indicated by UINT32_MAX.)
2. deduct_cmd_len: Whether cmd_len needs to be deducted from the
max_xfer_size to determine max data size that can be
transferred. (This is used by the amd boards.)
Change-Id: I81c199413f879c664682088e93bfa3f91c6a46e5
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/19386
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Tested-by: coreboot org <coreboot.org@gmail.com>
Some Chrome OS boards previously didn't have a hardcoded vboot
configuration (e.g. STARTS_IN_BOOTBLOCK/_ROMSTAGE, SEPARATE_VERSTAGE,
etc.) selected from their SoC and mainboard Kconfig files, and instead
relied on the Chrome OS build system to pass in those options
separately. Since there is usually only one "best" vboot configuration
for a certain board and there is often board or SoC code specifically
written with that configuration in mind (e.g. memlayout), these options
should not be adjustable in menuconfig and instead always get selected
by board and SoC Makefiles (as opposed to some external build system).
(Removing MAINBOARD_HAS_CHROMEOS from Urara because vboot support for
Pistachio/MIPS was never finished. Trying to enable even post-romstage
vboot leads to weird compiler errors that I don't want to track down
now. Let's stop pretending this board has working Chrome OS support
because it never did.)
Change-Id: Ibddf413568630f2e5d6e286b9eca6378d7170104
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/19022
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Fix the following errors and warnings detected by checkpatch.pl:
ERROR: that open brace { should be on the previous line
ERROR: return is not a function, parentheses are not required
WARNING: braces {} are not necessary for any arm of this statement
WARNING: line over 80 characters
WARNING: braces {} are not necessary for single statement blocks
WARNING: Avoid unnecessary line continuations
WARNING: break is not useful after a goto or return
WARNING: else is not generally useful after a break or return
False positives are generated by checkpatch for the following test:
ERROR: Macros with complex values should be enclosed in parentheses
TEST=Build for cyan
Change-Id: I19048895145b138a63100b29f829ff446ff71b58
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18871
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins)
Fix the following warning detected by checkpatch.pl:
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
TEST=Build for cyan
Change-Id: Ib5c6a1bf5308a8add42d7371854b80ea53d7ae84
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18870
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins)
Fix the following errors and warnings detected by checkpatch.pl:
ERROR: space required after that ',' (ctx:VxV)
ERROR: space prohibited before that ',' (ctx:WxE)
ERROR: spaces required around that '=' (ctx:WxV)
ERROR: code indent should use tabs where possible
WARNING: space prohibited between function name and open parenthesis '('
WARNING: please, no spaces at the start of a line
TEST=Build for cyan
Change-Id: I84d4204585b498b695608c5008fdfb7961e2416f
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18869
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins)
SPI_ATOMIC_SEQUENCING was added to accomodate spi flash controllers with
the ability to perform tx and rx of flash command and response at the
same time. Instead of introducing this notion at SPI flash driver layer,
clean up the interface to SPI used by flash.
Flash uses a command-response kind of communication. Thus, even though
SPI is duplex, flash command needs to be sent out on SPI bus and then
flash response should be received on the bus. Some specialized x86
flash controllers are capable of handling command and response in a
single transaction.
In order to support all the varied cases:
1. Add spi_xfer_vector that takes as input a vector of SPI operations
and calls back into SPI controller driver to process these operations.
2. In order to accomodate flash command-response model, use two vectors
while calling into spi_xfer_vector -- one with dout set to
non-NULL(command) and other with din set to non-NULL(response).
3. For specialized SPI flash controllers combine two successive vectors
if the transactions look like a command-response pair.
4. Provide helper functions for common cases like supporting only 2
vectors at a time, supporting n vectors at a time, default vector
operation to cycle through all SPI op vectors one by one.
BUG=chrome-os-partner:59832
BRANCH=None
TEST=Compiles successfully
Change-Id: I4c9e78c585ad95c40c0d5af078ff8251da286236
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/17681
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
