The callers of the following functions assume the storage
area provided by the pointers is initialized. That's not the
case as these were just place holders.
- void acpi_create_intel_hpet(acpi_hpet_t * hpet);
- void acpi_create_serialio_ssdt(acpi_header_t *ssdt);
To fix this properly initialize the hpet entry, and just remove
the serialio_ssdt function entirely.
BUG=chrome-os-partner:23505
BRANCH=None
TEST=Built and booted through depthcharge on rambi. Noted no more
ACPI errors relating to invalid length.
Change-Id: If56ab033562ef2d755e9c9de42f507c95d291aba
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174716
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4917
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
The EC LPC init function needs to run to enable the internal keyboard.
I needed this to confirm that it is just USB keyboards that are causing
all sorts of issues.
BUG=chrome-os-partner:23635
BRANCH=rambi
TEST=boot to recovery screen and hit tab
Change-Id: Iea0fc66ba62ea7da71ef83c26e25ae32bef102bd
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175207
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4915
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Enable first SATA port in Rambi device tree.
BUG=chrome-os-partner:23643
TEST=TEST=Manual, in dev mode. Verify on rambi that SATA disk is
detected, and kernel is found + booted.
Change-Id: Ic0cb5f9ff17ca0f6cc7941f203b9338df200811d
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174916
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4914
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Add SATA driver for baytrail platform.
BUG=chrome-os-partner:23643
TEST=Manual, in dev mode. Verify on rambi that SATA disk is detected, and
kernel is found + booted.
Change-Id: I5c13e03203c8f26d233c7d10af8ff6812c460578
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174914
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4913
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Add the on-board devices in the SoC to the device tree.
Also, disable the unused devices aside from TXE and HDA.
Those particular devices cause the system to shut down
when they are disabled.
BUG=chrome-os-partner:22871
BRANCH=None
TEST=Built and booted through depthcharge. Noted the calls to the
southcluster disable function.
Change-Id: I482c1c9609833054aeb2948144af54b57d3df086
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174645
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: http://review.coreboot.org/4912
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
When the southcluster pci devices are listed in the devicetree add
the ability to perform the proper disabling sequence for turning
off devices. This only turns off the pci device interface as well
as put the device into D3Hot. It is not yet known how to put the TXE
device into D3Hot so it's currently not possible to disable that
device.
Also, expose the southcluster_enable_dev() function so that other
devices can call this if they require doing specific things before
disabling the device. The southcluster_enable_dev() is only called
on devices found in the devicetree and if they currently have no
ops associated with them.
BUG=chrome-os-partner:22871
BRANCH=None
TEST=Built and booted through depthcharge. Interrogated
output to ensure devices were being properly disabled.
Change-Id: I537ddcb9379907af2fe012948542b6150a8bf7c5
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174644
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4911
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
While most registers accesses don't need the use of the MCRX
register (upper 24 bits of address) the MCRX register should
be protected. The reference code could be doing accesses to
registers that initialized the MCRX register. Thus, any access
after that should ensure the MCRX register is initialized
appropriately.
BUG=None
BRANCH=None
TEST=Verified assembly output. Also, built and booted through
depthcharge.
Change-Id: I4d6cfbe6bb1666790c69778b8f2c8baeaf015264
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174643
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: http://review.coreboot.org/4909
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
With generic load using 32-bit accesses this is no longer has a
huge impact it previously did. It's also unnecessarily
component-speficific.
Change-Id: I7e8a74ea1ceaa225e1024f9eb43e7280773e2b5a
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5131
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
With the recent improvement 3d6ffe76f8,
speedup by CACHE_ROM is reduced a lot.
On the other hand this makes coreboot run out of MTRRs depending on
system configuration, hence screwing up I/O access and cache
coherency in worst cases.
CACHE_ROM requires the user to sanity check their boot output because
the feature is brittle. The working configuration is dependent on I/O
hole size, ram size, and chipset. Because of this the current
implementation can leave a system configured in an inconsistent state
leading to unexpected results such as poor performance and/or
inconsistent cache-coherency
Remove this as a buggy feature until we figure out how to do it properly
if necessary.
Change-Id: I858d78a907bf042fcc21fdf7a2bf899e9f6b591d
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5146
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Linux kernel 2.6.31 reports the warning below on Intel Ivy Bridge (with
FSP).
resource map sanity check conflict: 0xfed10000 0xfed17fff 0xfed10000 0xfed13fff pnp 00:01
Since Sandy Bridge the length of the MCHBAR is 32 kB and it is already
used that way in other places.
$ more src/northbridge/intel/fsp_sandybridge/acpi/hostbridge.asl
[…]
OperationRegion (MCHB, SystemMemory, DEFAULT_MCHBAR, 0x8000)
[…]
So instead of 16 kB specify that 32 kB are decoded in that memory
range for Intel Sandy Bridge, Ivy Bridge and Haswell.
(Linux kernel 3.10 does not warn about that.)
Change-Id: Ie7a9356d9051c807833df85e4a806e5a9498473f
Reported-by: Norwich in #coreboot on <irc.freenode.org>
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/5192
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Werner Zeh
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
- Ungate display in PUNIT
- Set GSM to 64MB since 32MB is not supported in <C0 stepping
- Initialize power management registers in GTT
- Execute VBIOS if found
BUG=chrome-os-partner:23507
BRANCH=rambi
TEST=build and boot to dev screen via HDMI on rambi
Change-Id: Idb032c7ea7f16b651b4c921e3429a652fe663a5d
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174922
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4907
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The data needs to be available in the register before the control
bits are set to make the write happen.
BUG=chrome-os-partner:23507
BRANCH=rambi
TEST=successfully ungate power on PUNIT on rambi
Change-Id: I8fae60d5385ce9a401c1dec9cbb39b70d157a6c2
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174898
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4906
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
As rambi has the ChromeOS EC on it the EC needs to
be configured properly. Do this along with updating the
ChromeOS support for passing on write protect state, recovery
mode and developer mode.
BUG=chrome-os-partner:23387
BRANCH=None
TEST=Built and booted to depthcharge. EC software sync appears to
work correctly. Additionaly, 'mainboard_ec_init' appears in
the console output.
Change-Id: I40c5c9410b4acaba662c2b18b261dd4514a7410a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174714
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4905
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The EC needs to be initialized early in romstage. Therefore
perform the call after console has been initialized in order to
view any messages that the code may spit out.
BUG=chrome-os-partner:23387
BRANCH=None
TEST=Built and booted with recovery mode and EC in RW. Noted that
system reboots the EC.
Change-Id: I35aa3ea4aa3dbd9bd806b6498e227f45ceebd7a1
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174713
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4904
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Version 2 of the efi wrapper wants the speed of the TSC
timer initialized in the parameter structure.
BUG=chrome-os-partner:22866
BRANCH=None
TEST=Built and booted through depthcharge. No errors spit out by
wrapper.
CQ-DEPEND=CL:*147256
Change-Id: I9cd265ea6bde93be85fc6fbc905d83af57fc2773
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174712
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4903
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Before the special PUNIT settings the GFX pci device
had the same device id as the transaction router. This
required a special case in the transaction router's
driver to do the proper thing for read_resources().
However, that requirement is no longer needed as the
PUNIT special message is now being done. Therefore,
remove the work around.
BUG=None
BRANCH=None
TEST=Built and looked at resource allocation logs to confirm
work around is no longer needed.
Change-Id: I90b155cb5560ca3291f146c2f586456e5529f6b2
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174652
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4902
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
A global microcode_ptr was added when doing the MP
development work. However, this is unnecessary as the
pattrs structure already contains the pointer. Use
that instead.
BUG=chrome-os-partner:22862
BRANCH=None
TEST=Built and booted. Microcode still being loaded correctly.
Change-Id: I0abba66fc7741699411d14bd3e1bb28cf1618028
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174552
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: http://review.coreboot.org/4901
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
"Mini-ITX" was a pure inventional name for category called "mini".
Change-Id: I6450fd27c1a7679f252ce7f46f409b7dc459c50d
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5286
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
There are some fun rules C compilers can use to optimize their code.
One of them is the assumption that two symbols point to two different
addresses.
In this case this wasn't true, resulting in unintended code execution
(and later, a crash) with a clang build.
Change-Id: I1496b22e1d1869ed0610e321b6ec6a83252e9d8b
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/4719
Tested-by: build bot (Jenkins)
No native init uses this.
Real hardware ones use mode specified in EDID.
Qemu one uses CONFIG_DRIVERS_EMULATION_QEMU_BOCHS_[XY]RES.
Change-Id: I0845fec10b9811e2be44b5be30b9dc4f1c9719a6
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5281
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Decoding EDID doesn't yet mean that gfx mode is used.
Change-Id: Icedd36f26877754f34dd59233cce72271d7f0b19
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5269
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Struct dbgp_pipe would not be suitable for use with xHCI.
Just use an index, it is easy to setup in Kconfig if our
future debug setup has separate pipes for console
output and debugging/traceings.
Change-Id: Icbbd28f03113b208016f80217ab801d598d443a8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5227
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Properly determine temperature target and set it in early
init rather than hardcoding it in late init.
Change-Id: Ie763f205890674a9dd1d9c5974caaccdd67cea14
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5264
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
APIC IDs always step by 4 on 2065x independently of number of threads.
Change-Id: I5abd4005c8ce1740bb0862d952af66236b609aa8
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5262
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Get the required UART includes directly.
The ne2k part is old copy-paste leftover.
Change-Id: Ifd9253abb5a50b515887459faf06b63f907eeda9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5258
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@google.com>
The assembler options are specific to the gnu toolchain.
Change-Id: I8424767ef186ef2d4c18bfbcae1f54e0da2e4f47
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/4715
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Its linker doesn't like "." arithmetics, so use .org,
while its assembler doesn't like data32 prefixes.
Change-Id: I3f5bbb350493d6510b8013df15d44c44c5db63c7
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/4714
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
The Chrome OS environment sends an SMI to finalize the chipset/board
at the end of the "depthcharge" payload, but there is no facility to
send this command if not using the full ChromeOS firmware stack.
This commit adds a callback before booting the payload that will
issue this SMI which will lock down the chipset and route USB devices
to the XHCI controller.
Change-Id: I2db9c44d61ebf8fa28a8a2b260a63d4aa4d75842
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/5181
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The reference code blob is needed to bootstrap
certain pieces of hardware in bay trail. Provide
the ability to run reference code by loading
the reference code as an rmodule.
Note that support for vboot verification and S3
resume is omitted from this commit.
BUG=chrome-os-partner:22866
BRANCH=None
TEST=Built and booted with refcode loading.
Change-Id: I30334db441a57f4d87b4de6fca0a9a48e1c05c05
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174426
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4898
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
The PCU (platform controller unit) contains the
resources and IP blocks that used to reside in the
south bridge. Bay Trail has since renamed it south
cluster. There are quite a few fixed MMIO and I/O
resources. If these aren't added the resource allocator
will freely assign these addresses which causes conflicts
and other subtle bugs.
BUG=chrome-os-partner:23544
BUG=chrome-os-partner:23545
BRANCH=None
TEST=Built and booted through depthcharge. Verified
resource allocation not weird. And no more depthcharge
crashes.
Change-Id: I697fbda4538c03fded293bcb63a5823b1ed150ec
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174421
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4893
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Enabling the monotonic timer allows for collecting
boot stage times as well as each device initialization
time.
BUG=chrome-os-partner:23166
BRANCH=None
TEST=Built and booted. Noted timings in console output.
Change-Id: I5fdc703ea21710fd26de352f367c6fc0c767ab6a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174422
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4894
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
This is responsibility of end-user application. When coreboot does
it, it is only for the purpose of debug console.
Change-Id: Idbbf9528c60b9b819b7bea9dfe84078a3f055bc9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5251
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Andrew Wu <arw@dmp.com.tw>
The file was not recreated when configuration changed. One would
hit this bug when turning CHROMEOS on/off.
Also do not create mrc.cache with CHROMEOS at all.
Change-Id: I5b0ecde66589396b24967ce289bf65e20bb08825
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5211
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This sequence was derived from BD82X6X and on ibexpeak it inadvertently
disables interrupts. In older kernels it wasn't a problem but in new kernel
it makes codec probe fail.
Change-Id: I40184ae8c4cfe758869af1a1565b88f0a238150e
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5074
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Initialize SMM on all CPUs by relocating the SMM region
and setting SMRR on all the cores. Additionally SMI
is enabled in the south cluster.
BUG=chrome-os-partner:22862
BRANCH=None
TEST=Built and booted rambi. Tested with DEBUG_SMI and noted
power button turns off board while in firmware.
Change-Id: I92e3460572feeb67d4a3d4d26af5f0ecaf7d3dd5
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/173983
Reviewed-on: http://review.coreboot.org/4892
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Haswell CPUs need to use the default SMM region for
relocating to the desired SMM location. Back up that
memory on resume instead of reserving the default
region. This makes the haswell support more forgiving
to software which expects PC-compatible memory layouts.
Change-Id: I9ae74f1f14fe07ba9a0027260d6e65faa6ea2aed
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5217
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Certain CPUs require the default SMM region to be backed up
on resume after a suspend. The reason is that in order to
relocate the SMM region the default SMM region has to be used.
As coreboot is unaware of how that memory is used it needs to
be backed up. Therefore provide a common method for doing this.
Change-Id: I65fe1317dc0b2203cb29118564fdba995770ffea
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5216
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Aaron Durbin