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Add custom files for Sandybridge and IvyBridge functions.
Move only the minimal required functions into separate files.
Both files' functions are going to call raminit_common functions.
No functionality is changed.
Sandybridge code path tested on Lenovo T420.
Change-Id: I1b1dfbd0857b59d3ae4392b73c033ee7a5aed243
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/17605
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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This is a follow-on patch to commit 10141c30 -
(nb/intel/gm45: Use LAPIC udelay instead of custom version)
which removed the custom udelay from everywhere except SMM.
This patch removes it from SMM as well, and gets rid of the
gm45/delay.c file.
Change-Id: I7970bb5205f4aa10b38172ab5b9f8bcd6766c4e7
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/17330
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Instead of hardcoding pci_mmio_size in the raminit code,
this makes it a parameter in the devicetree.
A safe minimum of 768M is also defined since using anything
less causes problems (if 4G of ram is used).
Change-Id: If004c861464162d5dbbc61836a3a205d1619dfd5
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16856
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Except fo nehalem, K8, f10 and f15 (non-AGESA) romstage ramstack
is placed in CBMEM and ramstage loader takes care of tiny backup.
Change-Id: I8477944f48ed2493d0a5e436a4088eb9fc3d59c5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17358
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Don't use scratchpad registers when we have romstage_handoff
to pass S3 resume flag. Also fixes console log from reporting
early in ramstage "Normal boot" while on S3 resume path.
Change-Id: I2f1f05ef4fc640face3d9dc92d12cfe4ba852566
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17676
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Change-Id: I2085fc3a17d32cfbdab9ec0b7afbc01031e75b47
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17785
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Don't use scratchpad registers when we have romstage_handoff
to pass S3 resume flag. Scratchpad register was read too
late in ramstage so acpi_is_wakeup_s3() did not evaluate
correctly.
This fixes low memory corruption at 0x1000-0x102c and the lack
of coreboot tables (util/cbmem not working) after S3 resume.
This also fixes console log from reporting early in ramstage
"Normal boot" while on "S3 resume" path.
Change-Id: I2922a15a90d2f8272c3482579bdd96f8f33e9705
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17675
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Don't use scratchpad registers when we have romstage_handoff
to pass S3 resume flag. Also fixes console log from reporting
early in ramstage "Normal boot" while on S3 resume path.
Change-Id: I4e2eabc59ff87b7ed40cfc9885bbe0256fe4a695
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17674
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Adapt implementation from skylake to prepare for removal of
HIGH_MEMORY_SAVE and moving on to RELOCATABLE_RAMSTAGE.
With this change, CBMEM region is set early-on as WRBACK
with MTRRs and romstage ram stack is moved to CBMEM.
Change-Id: Idee5072fd499aa3815b0d78f54308c273e756fd1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15791
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Force modest 4 MiB alignment to help with MTRR assignment.
Change-Id: I49a7d1288bc079da1b8bd52150ddcfcfe2e51179
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17780
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Adapt implementation from skylake.
Change-Id: Ica3134a2261d3e84c714264cf75557322f9ef5db
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17673
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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We have kconfig.h auto-included and it pulls config.h too.
Change-Id: I665a0a168b0d4d3b8f3a27203827b542769988da
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17655
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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This makes CHIPSEC happy. We don't enable PAVP, but it shouldn't hurt
to lock it nevertheless.
Change-Id: I9428f0b6e8868832eb79f7aea24cbc7961c2aa8f
Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com>
Reviewed-on: https://review.coreboot.org/17352
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Device is of type CPU_CLUSTER, while pci_dev_set_resources()
expects PCI_DOMAIN.
Change-Id: Ib1add47d71071abb6e9c28e3a85dd0b671741b71
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17697
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Resource is actually stored even before read_resources, but
that's where we currently log this resource.
For Intel, use PCI config register offset as the resource
index, while AMD side uses MSR address.
Change-Id: I6eeef1883c5d1ee5bbcebd1731c0e356af3fd781
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17696
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Change-Id: Id727270bff9e0288747d178c00f3d747fe223b0f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17695
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Also remove separate MMCONF_SUPPORT_DEFAULT flag.
Change-Id: Idf1accdb93843a8fe2ee9c09fb984968652476e0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17694
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Doing PCI config operations via MMIO window by default is a
requirement, if supported by the platform. This means chipset
or CPU code must enable MMCONF operations early in bootblock
already, or before platform-specific romstage entry.
Platforms are allowed to have NO_MMCONF_SUPPORT only in the
case it is actually not implemented in the silicon.
Change-Id: Id4d9029dec2fe195f09373320de800fcdf88c15d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17693
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Resource allocator and 64-bit PCI BARs will need it and
PCI use is not really restricted to x86.
Change-Id: Ie97f0f73380118f43ec6271aed5617d62a4f5532
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17733
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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MMCONF was explicitly used here to avoid races of 0xcf8/0xcfc access
being non-atomic and/or need to access 4kiB of PCI config space.
All these platforms now have MMCONF_SUPPORT_DEFAULT.
I liked the style of code in pci_mmio_cfg.h more, and used those to
replace the ones in io.h.
Change-Id: Ib5e6a451866c95d1edb9060c7f94070830b90e92
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17689
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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The code originates from times before __SIMPLE_DEVICE__ was
introduced. To keep behaviour unchanged, use explicit PCI
IO operations here.
Change-Id: I44851633115f9aee4c308fd3711571a4b14c5f2f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17720
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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MMCONF was explicitly used here to avoid races of 0xcf8/0xcfc access
being non-atomic and/or need to access 4kiB of PCI config space.
All these platforms now have MMCONF_SUPPORT_DEFAULT.
Change-Id: I943e354af0403e61263f1c780f02c7b463b3fe11
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17529
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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It gets selected from CPU_AMD_MODEL10XXX.
Change-Id: Iffab43edc1152b07ba2af6273d4b5eb94afe33ba
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17692
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Untested.
Change-Id: I61ab1e5279c995f933971332673aa4ca0150e80c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17544
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Boards with this chipset do not have any reference of
MMCONF_BASE_ADDRESS being written to chipset registers.
Either board support is already broken or FSP takes
care of this early and Kconfig lacks the notice that
this parameter must match with the chosen FSP binary.
CPU bootblock associated with this chipset uses
exclusive PCI IO access already.
Untested.
Change-Id: I07d20d81266ff6aaa6384d20a806d52fd4568e08
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17547
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Split raminit.c into smaller parts. Move all functions that will
be used by chip-specific code into raminit_common.c.
The chip-specific changes includes new configuration values
for IvyBridge and 100Mhz reference clock support, including new
frequencies.
No functionality is changed.
Tested on Lenovo T420.
Change-Id: If7bb5949f4b771430f3dba1b754ad241a7e8426b
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/17604
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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Change-Id: Ie1c28b73bd2d34070173838d341cc6b8f65f50ef
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/17686
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Change-Id: I9b952e32dc661f5c1fa96b037b415693d8777b04
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17685
Tested-by: build bot (Jenkins)
Reviewed-by: Damien Zammit <damien@zamaudio.com>
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The same pattern was being used throughout the code base
for initializing the romstage handoff structure. Provide
a helper function to initialize the structure with the S3
resume state then utilize it at all the existing call sites.
Change-Id: I1e9d588ab6b9ace67757387dbb5963ae31ceb252
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/17646
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Vendorcode always does PCI MMCONF access once it is
enabled via MSR.
In coreboot proper, we don't give opportunity to make
pci_read/write calls before PCI MMCONF is enabled via MSR.
This happens early in romstage amd_initmmio() for all cores.
Change-Id: Id6ec25706b52441259e7dc1582f9a4ce8b154083
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17534
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Vendorcode always does PCI MMCONF access once it is
enabled via MSR.
In coreboot proper, we don't give opportunity to make
pci_read/write calls before PCI MMCONF is enabled via MSR.
This happens early in romstage amd_initmmio() for all cores.
Change-Id: If31bc0a67b480bcc1d955632f413f5cdeec51a54
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17533
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Following commit did not move this selection to northbridge:
bac0fad Remove explicit select MMCONF_SUPPORT
Change-Id: I5f3c429dfd160eb439f396db2baf0ecf280022fd
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17653
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Change-Id: I4288193c022cc0963b926b4b43834c222e41bb0d
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/16953
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Building an image for the Lenovo X60 on Debian 8.5 (jessie) with GCC 4.9.2,
compilation fails with the error below.
```
$ gcc --version
gcc (Debian 4.9.2-10) 4.9.2
[…]
$ make # lenovo/x60 with native graphics initialization
[…]
CC ramstage/northbridge/intel/i945/gma.o
src/northbridge/intel/i945/gma.c: In function 'probe_edid':
src/northbridge/intel/i945/gma.c:570:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < 8; i++) {
^
src/northbridge/intel/i945/gma.c:570:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
Makefile:316: recipe for target 'build/ramstage/northbridge/intel/i945/gma.o' failed
make: *** [build/ramstage/northbridge/intel/i945/gma.o] Error 1
```
Fix this by declaring the count variable outside the 'for' loop.
Change-Id: Icf69337ee46c86bafc4e1320fd99f8f8f5155bfe
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: https://review.coreboot.org/17623
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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The code won't allow anything beyond CL11 due to short
CAS Latency mask and a bug in mr0 which had the wrong
bit set for CL > 11.
Increase the CAS bitmask, fix the mr0 reg to allow CAS Latencies
from CL 5 to CL 18.
Use defines instead of hardcoding min and max CAS latencies.
Tested on X220 with two 1866 MHz, CL13 memories
Tested-By: Nicola Corna <nicola@corna.info>
Change-Id: I576ee20a923fd63d360a6a8e86c675dd069d53d6
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/17502
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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This allows to set the backlight PWM frequency and the
duty cycle in the devicetree instead of using a plain BLC_PWM_CTL
value.
Change-Id: I4d9a555ac7ea5605712c1fcda994a6fcabf9acf3
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17597
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Fix-up for 696abfc
nb/intel/x4x: Fix and deflate `dimm_config` in raminit
It didn't fix the channel-number shifting issue as intended.
The channel index is either 0 or 1. DIMMs are counted from 0
to 3 where 0..1 covers channel 0, and 2..3 covers channel 1.
Since we have two DIMMs per channel, we have to multiply the
channel index by 2 (or shift it left by 1) to get the index
of the first DIMM in the channel. Finally, to get the offset
of a DIMM in the channel we take its index modulo 2 (again,
the number of DIMMs per channel).
Change-Id: I2784b0cb655bfe823bf5fa48b722623dfca1ddc3
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/17612
Tested-by: build bot (Jenkins)
Reviewed-by: Damien Zammit <damien@zamaudio.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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We kept this value at it's default on the native graphics init path.
Maybe the Video BIOS path, too, I don't know if the VBIOS sets it.
The panel power sequencer uses the core display clock (CDCLK). It's
based on the HPLLVCO and a frequency selection we made during raminit.
The value written is the (actual divisor/2)-1 for a 100us timer.
v2: Fix unaligned mmio access inherited from Linux.
v3: Use MCHBAR8() instead. Also, the unaligned access might have
worked after all.
Change-Id: I877d229865981fb0f96c864bc79e404f6743fd05
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/17619
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Some methods like discover_402x assume an clear state.
Should fix fallback attempt raminit failures.
Change-Id: I7a6fe044c17f5e0dbfa0e9b9d2aed0c3b6ae3972
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/17471
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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By shifting the `chan` right instead of left, values were always taken
from the DIMMs of the first channel. The diff-stat also looks like an
improvement.
Change-Id: I605eb4f9b04520c51eea9995a2d4a1f050f02ecc
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/17587
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Damien Zammit <damien@zamaudio.com>
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If smbus_read_byte returned an error when reading the DIMM size,
this value would be used as an offset into an array.
Check for the error, and set the DIMM size to 0 if there's
a problem.
Addresses coverity issue 1229658 - Negative array index read
Signed-off-by: Martin Roth <martinroth@google.com>
Change-Id: I6461a0fae819dd9261adbb411c4bba07520d076d
Reviewed-on: https://review.coreboot.org/17485
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Change-Id: I1ceea759a40d740503bde725ad6d72fab4aa7971
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/17006
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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RW flag was added to spi_slave structure to get around a requirement on
some AMD flash controllers that need to group together all spi volatile
operations (write/erase). This rw flag is not a property or attribute of
the SPI slave or controller. Thus, instead of saving it in spi_slave
structure, clean up the SPI flash driver interface. This allows
chipsets/mainboards (that require volatile operations to be grouped) to
indicate beginning and end of such grouped operations.
New user APIs are added to allow users to perform probe, read, write,
erase, volatile group begin and end operations. Callbacks defined in
spi_flash structure are expected to be used only by the SPI flash
driver. Any chipset that requires grouping of volatile operations can
select the newly added Kconfig option SPI_FLASH_HAS_VOLATILE_GROUP and
define callbacks for chipset_volatile_group_{begin,end}.
spi_claim_bus/spi_release_bus calls have been removed from the SPI flash
chip drivers which end up calling do_spi_flash_cmd since it already has
required calls for claiming and releasing SPI bus before performing a
read/write operation.
BUG=None
BRANCH=None
TEST=Compiles successfully.
Change-Id: Idfc052e82ec15b6c9fa874cee7a61bd06e923fbf
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/17462
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Time spent in printk() is highly unpredictable, depending of the
enabled consoles. If only CBMEM console is enabled, debugstring
is repeated tens of times, consuming preram_cbmem_console storage.
Change-Id: I2b0d9bd11c294d988a0eb84b90e77d5cc7f1f848
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17516
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Make MMCONF_SUPPORT selected with MMCONF_SUPPORT_DEFAULT.
Platforms that remain to have explicit MMCONF_SUPPORT are
ones that should be converted.
Change-Id: Iba8824f46842607fb1508aa7d057f8cbf1cd6397
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17527
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Note: Platforms have no MMCONF_SUPPORT_DEFAULT.
Change-Id: I8a02ea78957fca23b1cf161a00d5e3edda73d683
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17543
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Change-Id: I4a8297397d878e38516c8df19dd311c7ef19ec06
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/17478
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
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When MRC cache is available, first read only the SPD unique
identifier bytes required to detect possible DIMM replacement.
As this is 11 vs 256 bytes with slow SMBus operations, we save
about 70ms for every installed DIMM on normal boot path.
In the DIMM replacement case this adds some 10ms per installed DIMM
as some SPD gets read twice, but we are on slow RAM training boot path
anyways.
Change-Id: I294a56e7b7562c3dea322c644b21a15abb033870
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17491
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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For S3 resume path SPD is only used for DIMM replacement detection.
As this detection already fails in the case of removal/insertion of
same DIMM, we can rely on cbmem_recovery() failure alone to force
system reset in case someone accidentally does DIMM replacements while
system is suspend-to-ram stage.
Skipping DIMM replacement detection allows skipping slow SPD loading,
thus reducing S3 resume path time by 80ms for every installed DIMM.
Change-Id: I4f2838c05f172d3cb351b027c9b8dd6543ab5944
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17490
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Take the timestamp before SPD loading takes place, for easier
comparison against MRC blob performance and followup changes
will optimize some of the slow SPD/SMBus operations.
Change-Id: I50b5a9d02d2caf4c63e1a4025544131a085b8fb6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17489
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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