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Document the algorithm to adjust I/O and roundtrip latencies.
Change-Id: Ic8b9aed54a34bb3252c457e87e81387fd410e305
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48397
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Tested on Asus P8H61-M PRO, still boots.
Change-Id: I147ba0ade8a5317a0fe76e9ea84947fd91d794b4
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47773
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Refactor in preparation to split up `program_timings`.
Tested on Asus P8Z77-V LX2, still boots.
Change-Id: I68410165f397d8b4f662e40e88fb6a58ab1c5cff
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47772
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Use absolute values for the Rx and Tx bus timings instead of values
relative to the CA (Command/Address) bus timing. This makes the
calculations more accurate, less complex and less error-prone.
Tested on Asus P8H61-M PRO, still boots. Training results do not seem to
be affected by this patch, and the margins roughly have the same shape.
Change-Id: I28ff1bdaadf1fcbca6a5e5ccdd456de683206410
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47771
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Currently it's not possible to add multiple graphics driver into
one coreboot image. This patch series will fix this issue by providing
a single API that multiple graphics driver can use.
This is required for platforms that have two graphic cards, but
different graphic drivers, like Intel+Aspeed on server platforms or
Intel+Nvidia on consumer notebooks.
The goal is to remove duplicated fill_fb_framebuffer(), the advertisment
of multiple indepent framebuffers in coreboot tables, and better
runtime/build time graphic configuration options.
Replace set_vbe_mode_info_valid with fb_add_framebuffer_info or
fb_new_framebuffer_info_from_edid.
Change-Id: I95d1d62385a201c68c6c2527c023ad2292a235c5
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39004
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
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Change-Id: I3e60cfc1fd3352b8b0c7460503179425cc593d36
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48589
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: I0a32295e72270cde2e9bd2f8f00358b47ffd3e33
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48562
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Clarify the clock, command and control programming sequence.
Tested on Asus P8Z77-V LX2, still boots.
Change-Id: I1aa4144197dc25dc8d6ef1d23e465280bddd95a3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47770
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Do not combine the host bridge device ID with the CPU stepping because
it is confusing. Although Sandy/Ivy Bridge processors incorporate both
CPU and northbridge components into the same die, it is best to treat
them separately. Plus, this change enables moving CPU stepping macros
from northbridge code into the CPU scope, which is done in a follow-up.
Change-Id: I27ad609eb53b96987ad5445301b5392055fa4ea1
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48408
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Commit 7f1363d9b4 (nb/intel/sandybridge: Program MR2 shadow register)
has a bug where the system locks up and power cycles when booting Linux,
but is still able to pass memtest86+ with flying colors. The issue will
occur when the following conditions are true:
- CPU is Ivy Bridge
- Memory speed is not greater than 1066 MHz (DDR3-2133 or slower)
- System contains dual-rank DIMMs
- The second rank of the dual-rank DIMMs is mirrored
- All DIMMs support Extended Temperature Range
- At least one of the DIMMs does not support Auto Self-Refresh
If all of these conditions are met, the final value of the MR2 Shadow
registers configures the memory controller to issue a MRS command to
update MR2 before entering self-refresh mode, but indicates that rank
mirroring is not required (the first rank on a DIMM is never mirrored).
Before the memory controller enters self-refresh, it sends MRS commands
to all ranks to update MR2, but the missing address and bank mirroring
means DRAM chips on mirrored ranks instead clobber MR1 with junk data.
With garbage in MR1, the mirrored ranks no longer function properly,
which ultimately leads to all hell breaking loose (undefined behavior).
The condition is backwards, since only odd ranks can be mirrored. To
avoid this problem completely, simply remove the condition. The final
register value will still be correct, since the bits are always ORed.
Tested on Asus P8Z77-V LX2, fixes booting Linux with dual-rank DIMMs.
Change-Id: Iceff741eb85fab0ae846e50af0080e5ff405404c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48550
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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Move all memory map definitions into a separate header.
Tested with BUILD_TIMELESS=1, Packard Bell MS2290 remains identical.
Change-Id: I1f37ad9cae39041f98871c613b308b5ac5da01b3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45379
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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There's no need to wrap these macros with casts. Removing them allows
dropping more casts in `early_init.c`.
To avoid binary changes the casts are put into the
{MCH,DMI,EP}BAR{8,16,32} macros instead where they are needed to reach
the right memory locations.
Change-Id: Icff7919f7321a08338db2f0a765ebd605fd00ae2
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45378
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Inspired by Idca25b2e4bf65abcb and Ib275f9ad8ca9ff move all memory map
definitions into a header with a common name.
Change-Id: I32a99f70f4d2eb52367c9edfc0aa6d5da2fec03f
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48234
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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This patch introduces two new CBFS API functions which are equivalent to
cbfs_map() and cbfs_load(), respectively, with the difference that they
always operate on the read-only CBFS region ("COREBOOT" FMAP section).
Use it to replace some of the simple cases that needed to use
cbfs_locate_file_in_region().
Change-Id: I9c55b022b6502a333a9805ab0e4891dd7b97ef7f
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39306
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch renames cbfs_boot_map_with_leak() and cbfs_boot_load_file()
to cbfs_map() and cbfs_load() respectively. This is supposed to be the
start of a new, better organized CBFS API where the most common
operations have the most simple and straight-forward names. Less
commonly used variants of these operations (e.g. cbfs_ro_load() or
cbfs_region_load()) can be introduced later. It seems unnecessary to
keep carrying around "boot" in the names of most CBFS APIs if the vast
majority of accesses go to the boot CBFS (instead, more unusual
operations should have longer names that describe how they diverge from
the common ones).
cbfs_map() is paired with a new cbfs_unmap() to allow callers to cleanly
reap mappings when desired. A few new cbfs_unmap() calls are added to
generic code where it makes sense, but it seems unnecessary to introduce
this everywhere in platform or architecture specific code where the boot
medium is known to be memory-mapped anyway. In fact, even for
non-memory-mapped platforms, sometimes leaking a mapping to the CBFS
cache is a much cleaner solution than jumping through hoops to provide
some other storage for some long-lived file object, and it shouldn't be
outright forbidden when it makes sense.
Additionally, remove the type arguments from these function signatures.
The goal is to eventually remove type arguments for lookup from the
whole CBFS API. Filenames already uniquely identify CBFS files. The type
field is just informational, and there should be APIs to allow callers
to check it when desired, but it's not clear what we gain from forcing
this as a parameter into every single CBFS access when the vast majority
of the time it provides no additional value and is just clutter.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Ib24325400815a9c3d25f66c61829a24a239bb88e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39304
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-by: Mariusz Szafrański <mariuszx.szafranski@intel.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch flips the default of CONFIG_NO_CBFS_MCACHE so the feature is
enabled by default. Some older chipsets with insufficient SRAM/CAR space
still have it explicitly disabled. All others get the new section added
to their memlayout... 8K seems like a sane default to start with.
Change-Id: I0abd1c813aece6e78fb883f292ce6c9319545c44
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38424
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This register needs to be updated differently depending on the CPU
generation and stepping. Handle this as per reference code. Further,
introduce a bitfield for the register to make the code easier to read.
Change-Id: I51649cb2fd06c5896f90559f59f25d49a8e6695e
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47766
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Values differ between Sandy and Ivy Bridge. Remove the lookup table,
since it contains duplicated values and is hard to see which values
correspond to which frequencies. New values come from reference code.
Change-Id: I3b28568f0053f1b39618e16bdffc24207547d81f
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47765
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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This is actually aggressive write training, similar to aggressive read
training. Rename it accordingly and refactor it to improve clarity.
Enabling IOSAV_n_SPECIAL_COMMAND_ADDR optimizations must only be done
for later Ivy Bridge steppings. Therefore, guard the code accordingly.
Change-Id: Ia3331b95c265113d94cb5d66c57a97cb77fc3dc9
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47748
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Only some Ivy Bridge SKUs support write Vref control.
Change-Id: I4e606c69c6758d909946da43c3d243e3af8833cf
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47747
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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When memory is running at fast frequencies, power-down modes can lessen
system stability. Check tXP and tXPDLL values and use safer power down
modes if their values are high. Do not use APD with DLL-off on mobile:
vendor firmware does not use it, and it can influence system stability.
Change-Id: Ic8e98162ca86ae454a8c951be163d58960940e0e
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47746
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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This is the default value, and matches what vendor firmware does.
Change-Id: Id0c9758a845d711a87c4b06f89fa0926ae658e02
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47745
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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This has been reported to increase stability, and vendor BIOS also does
the same.
Change-Id: I4e3ea76f61771683dea61b18bee531516cda5843
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47744
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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This is actually an (incomplete) aggressive read training algorithm.
Rename functions and variables accordingly, and tidy up declarations.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I8a4900f8e3acffe4e4d75a51a2588ad6b65eb411
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47679
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Tested on Asus P8H61-M PRO, still boots.
Change-Id: Ie5e243380d940ca89857b230e15091ac01fde928
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47622
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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The byte-wise error mask only needs to be set for certain corner cases
in read MPR training. Thus, minimize writes to this register.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I0bb8d99ad60c4964f896d303878e5982ae1dcdbe
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47621
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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This is a copy of `find_predefined_pattern` without any effect.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: Ieb72066ca25b40b6e60f04e6c4097a0ccc2a56b3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47620
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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It is necessary to program this register before doing an I/O reset.
Change-Id: Iada74b7ee704f47cc07c71123a62b826d62cfc50
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47619
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Create and rename a few functions to contain the entire JEDEC write
leveling algorithm. Not all write training is JEDEC write leveling.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: Ie9c6315340164029e30354723b4103d906633602
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47617
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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There's no need to reprogram the exact same sequence over a hundred
times. Move it out of the timB loop, and drop the `test_timB` function.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I375e325cf8b5369889b9cb059c3675cd00bdbb3f
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47616
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Encapsulate the IOSAV sequence into a helper to help reduce clutter.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I58595a5c53fcdc3f29fa55b015a82cbfe85cd6cb
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47615
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Reference code does this, so follow suit.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I21c5161da55b380dd4b2d574b22a1ef038f55fce
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47611
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Given that it sets the receive enable mode bit in the GDCRTRAININGMOD
register, it's clear that this is about receive enable calibration.
Remove a potentially-outdated comment. Proper documentation will be
written once code refactoring and various improvements are complete.
Change-Id: Iaefc8905adf2878bec3b43494dc53530064a9f5d
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47576
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Tested on Asus P8H61-M PRO, still boots.
Change-Id: Ie4b5777dd3789d4cd818ee66bdf3074ad055c818
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47572
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This register's layout makes no sense, so use bitfields for clarity.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I61efc7349badc2c3297c9b71535dceecaba509d0
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47571
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Most per-channel registers are programmed with the same values.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: Ifddff3043b68113058859cef08625b90012ca424
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47513
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Tested on Asus P8H61-M PRO, still boots.
Change-Id: I9a996de5d596cdb541c8b327f119425243724007
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47512
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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ODT stretch is configured for both slots in `dram_odt_stretch`. Also
drop an unjustified OR, which is setting ODT stretch for one slot.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I3a9076afec96e33cfdd12f9b78ca4101b3776dab
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47490
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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In order to run a write leveling test, one needs to unset the Qoff bit
in MR1, then run the test, and finally set Qoff again. The current IOSAV
sequence uses two subsequences to perform the test, while the other two
are unused. It is possible to perform the two necessary MR1 updates in
the same sequence, which can potentially improve runtime (not measured).
Since `write_mrreg` is no longer used, it is necessary to handle address
mirroring explicitly. This can be accomplished with the recently-added
`ddr3_mirror_mrreg` function, which is also used in `write_mrreg`.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I65ca1aa32cdb177d2a9e27c3b02e74ac0c882794
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47614
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The same IOSAV sequence is used in both loops, so there's no need to
reprogram it again in the second loop.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: If7ee7917b61e4b752b4fc4700715dc9506520c03
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47612
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The `discover_edges_real` function actually tests a range of values for
DQS PI and evaluates how the system responds. Rename the loop variable.
Change-Id: I67390ba315d618d153f91c0e8a81db04ec8f63e1
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47606
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The IOSAV_By_BW_MASK_ch registers are not per-rank. To preserve original
behavior, use a for-populated-channels loop instead of for-all-channels.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I6db35c41cd05420ceaeda93255f5ed73598a5bdd
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47609
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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These are simply read MPR training, using the MPR pattern mode in MR3.
Change-Id: Icdc60572e0ee0b59dcb5dee1e1aceccfda79f029
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47610
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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After aggressive read training, program nominal Vref for the current
channel, not only channel 0. This simple mistake can easily degrade
memory margins, especially when running at high speed (overclocking).
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I12630fe33c5c786c8ec131c45c27180c3887d354
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47680
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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This function simply determines the best delay for the TX DQ PIs.
Change-Id: If44c4f661d8c81fe41532ce2bfe3718392b9fe94
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47625
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Write training needs to update mode register 1, but `write_mrreg` will
clobber the IOSAV sequence. Reference code uses one four-subsequence to
unset Qoff in MR1, run the test, and finally set Qoff again. This will
be implemented in future changes, and will use the newly-added helper.
Change-Id: I06a06a7bdd43dbde34af4ea2f90e00873eefe599
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47613
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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The intent here is to clear the register, so a simple write will work.
Change-Id: I547805059e911942ac2cac7bd2165af23d926a2b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47608
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Also fuse two per-channel loops together.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: Iacc66f4364290a66d60d483055abef6e98223d16
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47607
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Give these functions more meaningful names.
Change-Id: I6b308120d4185a3bc448213a925d5cee0d4d8bd9
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47605
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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There's no need to use `struct timA_minmax`, since most cases only care
about the difference between logic delay deltas. The final step does use
the minimum logic delay across all lanes, but it's a special case.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I1da95520ac915ab003e1a839685cbf5f1970eb6a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47604
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Add a missing tab and remove spurious spaces in the IOSAV structs.
Change-Id: If588d3f01c8744fd0c83576a56cfdda2fb43a3bd
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47570
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Constify variables, and also remove pointless and-masks on mr2reg.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I3829012ff7d41f4308ee84d6fbf3b1f2803431af
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47569
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Reference code never enables SRT for Sandy Bridge, and only enables it
for Ivy Bridge when the memory frequency is at most 1066 MHz.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I50527f311340584cf8290de2114ec2694cca3a83
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47568
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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This register must be programmed if Self-Refresh Temperature range is
enabled in MR2 (bit 7). Because the memory controller needs to reprogram
MR2 when entering Self-Refresh, it needs a copy of the MR2 settings. It
also needs to know about mirrored ranks to correctly issue MRS commands.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I2e459ac7907ead75826c7d2ded42328286eb9377
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47567
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: I5476bbe1a99d087bc026dc5646c8440c50dd151e
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47518
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This function is only used in two places, so move its definition closer.
Change-Id: I21d3e04de45f58cef0603b6b75119cae4b1a7aae
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47517
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
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There's no need to use and-masks here.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: If06352daf53ce278dfc64102e023e4f1ea78385c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47516
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Use bitwise negations for AND-masks and shifts for bitfields.
Tested with BUILD_TIMELESS=1, Asus P8Z77-V LX2 remains identical.
Change-Id: Id265728c362a5035ac57f84766e883608f29c398
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47511
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Tested with BUILD_TIMELESS=1, Asus P8H61-M PRO remains identical.
Change-Id: I7980daf316cfd524d24df2c10e43b9b15e4e30bf
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47504
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Create some functions to program commonly-used sequences.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I1b6474ab208fe5fc2bd7f1b68eff20541fdfce9b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47503
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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This allows deduplicating them while preserving reproducibility.
Tested with BUILD_TIMELESS=1, Asus P8H61-M PRO remains identical.
Change-Id: Ic7d1a5732296bb678b9954f80508e9f7de7ff319
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47493
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Instead of programming subsequences one-by-one, we might as well take
the whole sequence as an array and program all subsequences in one go.
Since the number of subsequences is now known in advance, handling of
global state can be simplified, which allows reusing the last sequence.
Change-Id: Ica1b2b20e04ae368f10aa236ca24d12f69464430
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47492
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: Icbe01ec98995c3aea97bb0f4f84a938b26896fab
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47491
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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Put names and expand comments for some parts of the code.
Change-Id: If1f83bf113ef08469768a9e4dd13819f76633f18
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47489
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>
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Change-Id: I8271911695f41ef7cac1bb228309af0568e5bb0c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47488
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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There's no need to use size_t to store a boolean.
Change-Id: I0069fa8d75583dc34b402004d753220943406a04
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47487
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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The only reason to write the MR values to the training result registers
is for EV (Electrical Validation) usage. The hardware doesn't need it.
Tested on Asus P8H61-M PRO, still boots.
Change-Id: I808174494729453f4ebcaa13258d735faae68d72
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47486
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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It is only used once, and can thus be moved to the same file.
Change-Id: I4ee0621449da7fa1970a475d5a2f6e66546357ea
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47485
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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It is usually written to right after programming a pattern, because its
lower byte contains the number of cachelines of the programmed pattern.
The other cases merely reset the WDB data write and compare pointers.
Change-Id: I97196d404bf70542db28499e0d2e24b7cdab07b6
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47484
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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Currently the decision of whether or not to use mrc_cache in recovery
mode is made within the individual platforms' drivers (ie: fsp2.0,
fsp1.1, etc.). As this is not platform specific, but uses common
vboot infrastructure, the code can be unified and moved into
mrc_cache. The conditions are as follows:
1. If HAS_RECOVERY_MRC_CACHE, use mrc_cache data (unless retrain
switch is true)
2. If !HAS_RECOVERY_MRC_CACHE && VBOOT_STARTS_IN_BOOTBLOCK, this
means that memory training will occur after verified boot,
meaning that mrc_cache will be filled with data from executing
RW code. So in this case, we never want to use the training
data in the mrc_cache for recovery mode.
3. If !HAS_RECOVERY_MRC_CACHE && VBOOT_STARTS_IN_ROMSTAGE, this
means that memory training happens before verfied boot, meaning
that the mrc_cache data is generated by RO code, so it is safe
to use for a recovery boot.
4. Any platform that does not use vboot should be unaffected.
Additionally, we have removed the
MRC_CLEAR_NORMAL_CACHE_ON_RECOVERY_RETRAIN config because the
mrc_cache driver takes care of invalidating the mrc_cache data for
normal mode. If the platform:
1. !HAS_RECOVERY_MRC_CACHE, always invalidate mrc_cache data
2. HAS_RECOVERY_MRC_CACHE, only invalidate if retrain switch is set
BUG=b:150502246
BRANCH=None
TEST=1. run dut-control power_state:rec_force_mrc twice on lazor
ensure that memory retraining happens both times
run dut-control power_state:rec twice on lazor
ensure that memory retraining happens only first time
2. remove HAS_RECOVERY_MRC_CACHE from lazor Kconfig
boot twice to ensure caching of memory training occurred
on each boot.
Change-Id: I3875a7b4a4ba3c1aa8a3c1507b3993036a7155fc
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46855
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Haswell Low Power variants do not have PEG at all.
Change-Id: Ia5577104b00bfc8713b54c3c43f8dcdd3bc367df
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46791
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change is just to align with Broadwell.
Change-Id: I25a481503f5df79502f5ae60c87e7dacb781adad
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46790
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Tested with BUILD_TIMELESS=1, Google Wolf remains identical.
Change-Id: I710581156937b042ba4cf5948c65d0795ad37bbf
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46789
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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These are not used anywhere and are not present on Broadwell.
Change-Id: I2d1359286ac719cb5daefc955d5c6085e2949c1f
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46788
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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There's no need to perform manual shifting and masking when ACPI allows
one to painlessly describe bitfields of a register. The now-unused DVEN
definition will be dropped in a follow-up, alongside other definitions.
Change-Id: Iab6972c78c1114c8e3dfee28320ae233421ff154
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46787
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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There's no need to dynamically differentiate between traditional and Low
Power platforms at runtime, and doing so makes code reuse more complex.
Change-Id: Id40f2f5f41db00487af9115eabee8874c2399030
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46785
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The regions TSEG, GSM, GMS should not be marked as cacheable
resources.
Change-Id: I083b096cf3ed250bca722674abe9feffdb2436d1
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47174
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Provide necessary romstage hooks to allow unblocking the memory with
SCLEAN. Note that this is slow, and took four minutes with 4 GiB of RAM.
Tested on Asrock B85M Pro4 with tboot. When Linux has tboot support
compiled in, booting as well as S3 suspend and resume are functional.
However, SINIT will TXT reset when the iGPU is enabled, and using a dGPU
will result in DMAR-related problems as soon as the IOMMU is enabled.
However, SCLEAN seems to hang sometimes. This may be because the AP
initialization that reference code does before SCLEAN is missing, but
the ACM is still able to unblock the memory. Considering that SCLEAN is
critical to recover an otherwise-bricked platform but is hardly ever
necessary, prefer having a partially-working solution over none at all.
Change-Id: I60beb7d79a30f460bbd5d94e4cba0244318c124e
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46608
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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This is just to align the code with what Broadwell does.
Change-Id: I52fb1546d049ca9fa09d0c54304ca1d79f6c4c3e
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46756
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Align cosmetics and move CTDP-specific ASL into its own file.
Tested with BUILD_TIMELESS=1, Asrock B85M Pro4 does not change.
Change-Id: I476a4e01016caa3658177b0fa8916576f4a5e0e5
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46755
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Tested with BUILD_TIMELESS=1, Google Wolf does not change.
Change-Id: I029ab0dccbf7b61d641cccf79b491fabf97ab74a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46720
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I4077b9dfeeb2a9126c35bbdd3d14c52e55a5e87c
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45404
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I598fe743354ea429d6821b95be7d209a9fcf9f0c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46693
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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Change-Id: I6c65a5a74a83b8da299245fd6f4a7ae7c1ed30c3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46692
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I72f75f3df50af362874818f2c1883a6a1c741087
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46691
Reviewed-by: Swift Geek (Sebastian Grzywna) <swiftgeek@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The message was being printed too early, possibly because it was
relocated around alongside the rest of the code.
Change-Id: I4257f6f0baa1c398aa1df9bd3274458abfaf28a6
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46690
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This is to reduce differences between Haswell and Broadwell.
Change-Id: I8d6a8ee02e24bee22f0a7b69098ea8430095ba90
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46689
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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MRC does not use the value of SSKPD, and will overwrite it with constant
values at the end of memory initialisation. Since coreboot does not rely
on this particular bit's value, it is safe to drop the writes to set it.
MCHBAR register 0x6120 is undocumented. It is nowhere to be found in any
documentation or code I have access to; not even for Sandy/Ivy Bridge,
the platform where this mysterious register write originally came from.
These workarounds were copied from Sandy Bridge, but do not apply to
Haswell. They were dropped on Broadwell, so drop them for Haswell too.
Tested on Asrock B85M Pro4, still boots.
Change-Id: I21d9656a7595d47ac8648c08d223b7cbafd213c3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46683
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Reorder register writes to match the locking order in Broadwell.
Tested on Asrock B85M Pro4, still boots and registers are still locked.
Change-Id: Ibe15c2598fabda752c9a54eba6362621e144ad77
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46682
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Broadwell uses a 32-bit or, so also use it on Haswell for consistency.
This has no effect because MRC already locks the memory controller down.
Tested on Asrock B85M Pro4, still boots and register is still locked.
Change-Id: Ida69cd9a95a658c24b4d2558dde88b94c167a3f9
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46681
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The Haswell System Agent BIOS Spec revision 0.6.0 indicates this
register needs to be locked, and Broadwell already locks it.
Tested on Asrock B85M Pro4, still boots and register is locked.
Change-Id: Icdeb39e2fdde1403b6ab83faed214addca863f4b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46680
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This register has a lock bit. The Haswell System Agent BIOS Spec
revision 0.6.0 indicates it needs to be set, thus set it. Note that
Broadwell already locks this register.
Tested on Asrock B85M Pro4, still boots and register is locked.
Change-Id: Ie23b825e708edbfc04ec0d7783f868e8632eb608
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46679
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This register had a lock bit on Sandy Bridge, but does not on Haswell.
Moreover, the bit remains cleared on Asrock B85M Pro4 with coreboot.
Therefore, remove the write to this bit, because it has no effect.
Tested on Asrock B85M Pro4, still boots.
Change-Id: I382a6d69233ced5af069767eb61b56741ed665be
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46678
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Tested with BUILD_TIMELESS=1, Asrock B85M Pro4 remains identical.
Change-Id: I46331225f36a58615c9cb67d6387fd020d30a04d
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46677
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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There's no need to have ACPI guards in `gm45.h`, since the only things
the ASL files require are the base address definitions in `memmap.h`.
Also, remove the southbridge include from `gm45.h` and place it only in
the files that actually require something from it.
Tested with BUILD_TIMELESS=1, Roda RK9 remains identical.
Change-Id: Ica2c5ae9f57595c8577a1bfcc3b57f2c57b3e980
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45452
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Move all memory map definitions into a separate header.
Tested with BUILD_TIMELESS=1, Roda RK9 remains identical.
Change-Id: Idddb63069b7a0b7b4d6c7850473a71318748bb9b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45451
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Add definitions for more DMIBAR/EPBAR registers, and specify their sizes
as well. Also, expand a comment as the registers' purpose is now known.
Tested with BUILD_TIMELESS=1, Roda RK9 does not change.
Change-Id: I9687d34e0663e70bdd2a1aa682246c2448690e18
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45448
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The host bridge PCI device ID can be changed by the firmware. There
is no documentation about it, though. There's 'official' IDs, which
appear in spec updates and Windows drivers, and 'mysterious' IDs,
which Intel doesn't want OSes to know about and thus are not listed.
The current coreboot code seems to be able to change the device ID
of the host bridge, but it seems to be missing a warm reset so that
the device ID changes. Account for the 'mysterious' device IDs in
the northbridge driver, so that booting an OS has a chance to work.
For the sake of completeness, add the PCI device IDs for Clarkdale.
Although only Arrandale is known to work, both of them are Ironlake.
It is possible that the Management Engine handles changing the PCI
device ID, which would not happen when using a broken ME firmware.
Change-Id: I93c9c47e2b0bf13d80c986c7d66b6cdf0e192b22
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45562
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The code is known to work on processors other than just i7's. Also, use
the northbridge's name (Ironlake) in place of the CPU's (Arrandale).
Change-Id: Ia33fa285b4bacd652932d2187384ca1814c9528a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46664
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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The code is known to work on processors other than just i7's.
Change-Id: I8be83bf51315547b29ab2b239e953554d3a323a0
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46663
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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