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This super io support is poorly implemented and would not work for all
boards since it hardcodes values. Since there are no users of it, remove
for now pending a fresh reimplementation from scratch.
Change-Id: I818a9f4d2ab106b989824e49cee49d79acd6041a
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5566
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Following the same reasoning as:
HASHHERE superio/ite/it8721f: Rewrite from hardcoded base addr
Removing hard coded magics and expose sio pnp api in romstage.
Change-Id: I27433cb1a84b3641a6110ecf6bd5021e00769aba
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5565
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Rewrite early_serial.c implementation to honour a passed base address in
device_t, removing any hard coding of values. We also expose early sio
init functions as romstage symbols to avoid falsely #including
"early_serial.c" in romstage.c of board support.
Change-Id: I521b8f7cf85173345b90745c6f2ab66e25429f5d
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5561
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Dumping the ACPI tables in this way has limited use, is not likely to be
used and is poorly implemented. There are much more sophisticated tools
available on Linux for debugging ACPI as such this code is outside the
scope of coreboots 'bring up the hardware only' philosophy.
A more generic implemention could be done with hexdump() in coreboot
proper following on from this cleanup.
Change-Id: Ifd3bfb76338609d18fcf7158d3c9a6d7c06c8847
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5530
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Avoid some confusion as the selection of "BeagleBone" is not compatible
with the product "BeagleBone Black".
Change-Id: If73f80565cd26d2b41db972b4474ab85b609c1ad
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4289
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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Not very popular nor useful nowadays.
Change-Id: I3dc0f7aaf188950a43f5350d3a95669fbbdcfd94
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4554
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The ACPI IO ports, and the respective SMI (for HAVE_SMI_HANDLER), were
initialized when the FADT table was written. This works well on a cold
boot, but the ACPI ports are not initialized on S3 resume, as ACPI
tables are not written. This will not work on S3 resume if the default
ports are not what we set them, or if AGESA sets them to some other
value.
To solve this, move the port configuration to southbridge chip init.
Change-Id: Ib4043f0fa5e20f08d320acd12ce84d4d789cd035
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5559
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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The PCIE PME pin from the APU is connected to GEVENT8, but the
northbridge's ASL hardcodes this to GPE 0x18. Adjust the SCI map
accordingly.
Change-Id: Ie395e62919f6e97ef9bcc45c736f9debf4e09ba0
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5556
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Hudson ASL files assume the USB power event notifications are mapped
to GPE 0xb. Since that GPE is not used on this board, map these events
to GPE11. This GPE is already handled in ACPI via Method(_L0B). We
adjust this method to also notify the XHCI controller at PCI 10:0.
Change-Id: If33dd4bb5830820227f7c8b34594886cfae37282
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5554
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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The power button was declared by hudson's ASL as \_SB.PCI0.PWRB, and
always had the wake source declared as GPE3. This is not the correct
wake source for all boards. On some laptops declaring a wake source is
not needed, as the wake mechanism is handled by the EC.
Move the declaration of the power button to mainboard ASL files, and
scope it as \_SB.PWRB . This also makes the naming consistent with the
examples in the ACPI spec. The wake source for the PWRB of HP Pavilion
M6 1035dx is removed, as it is incorrect.
Change-Id: I9c76566025e7f200c0376673f6c6ea299afa4a5d
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5546
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Strip incorrect comments pretaining to the superio, and replace spaces
with tabs.
Change-Id: Ib3f6094c552777552d0ec06e3236210ee2e7b05d
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5562
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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It's not needed, and puts the EC back into APM mode. The EC does not
shut down during S3 sleep, so we don't need to re-initialize it.
Lid SMI will have been disabled in the switch to ACPI mode, don't
re-enable it.
Change-Id: I2c06df140f63427dac32ae095d29e68f64135358
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5555
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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The ACPI IO ports were defined twice, and used inconsistently. Only
keep one of the definitions for consistency.
Change-Id: If5744f9375fdaa97ceb9ba03dca8aa825eecf159
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5558
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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The SPI controller driver used numerical offsets to access SPI
registers, making it unreadable without the datasheet. Use less magic
and more #defines to improve readability.
Change-Id: I8a1f11645cfce027e5df7a41a98c70249695889e
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5557
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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This patch completes ACPI support for the lid switch. The lid SCI now
notifies the OSPM of the status change when the lid is closed or
opened, allowing system to suspend. The wake source is also declares,
and the system wakes when the lid is opened.
The system resumes successfully, but the display still does not come
back on.
Change-Id: I803c4fc64e15f8d1a90791ec246af66604646d8b
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5549
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Each GEVENT pins can be mapped to a specific GPE via the SCI map.
The default mapping is not appropriate for this laptop, so use the
AGESA functionality to map currently known events.
Change-Id: Ifa50bf000cfc8e77a6a4d84752f89838f165f7a0
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5548
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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These definitions were scattered in a couple of files, and we risk
scattering them all over the place. Provide a common file for these
definitions.
Change-Id: I1fe99e5097cf10a349661f3b2ae2377f5cdd6103
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5547
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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This was always AMD-only and it was never properly used with AGESA.
Change-Id: Ifb461ee845e442f6cf90aca52470cfb66e862bfc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5540
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Following boards use cimx/sb700:
amd/dinar
supermicro/h8qgi
supermicro/h8scm
tyan/s8226
Only amd/dinar had APIC_ID_OFFSET defined, thus all had 0x0.
There was a nonsense preprocessor directive (MAX_CPUS * MAX_PHYSICAL_CPUS >= 1).
Except for tyan, (MAX_CPUS * MAX_PHYSICAL_CPUS) % 256 == 0.
Together with documented 4-bit restriction for APIC ID field, this APIC ID
programming matches with MP tables and ACPI tables.
I believe this would also fix cases of cimx/sb700 with MAX_CPUS<16, which
we do not have in the tree.
Change-Id: If8d65e95788ba02fc8d331a7af03a4d0d8cf5c69
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5539
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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All boards had APIC_ID_OFFSET=0 and MAX_PHYSICAL_CPUS=1.
Change-Id: I6f08ea6de92a2af79fb3a99c5edd942b3a321c43
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5538
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
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These are not used with cimx/sb900 vendorcode.
Change-Id: I489ee80c739b31edac649491497162c65316996e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5537
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Match the definition of NODE_PCI() with get_node_pci(), so romstage
and ramstage agree of the PCI BDFs for nodes.
Note that all board have CONFIG_CDB = 0x18 and the maximum for
nodes = 8, so we always have (CONFIG_CDB + x) < 32.
Change-Id: I676ee53a65ef5b1243df2c5889577dd987c8fc9c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5536
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Change-Id: I8c1548470c605d06825fe35579879e806bf33542
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5271
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
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Fix compilation. Relying on the pre-processor to condition an if
statement will lead to warnings of implicitly defined functions. To
solve this dilemma add symbols to resolve to at compile time.
Change-Id: Id0117528c5579cc1dec750a8a17a76fab4314b3f
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5504
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Depending on the compiler options, subsections of the form
of .section.subsection could be generated. Therefore, include
those subsections for .bss, .sbss, and .data.
Change-Id: I80dd64d8c62e7bc449ee2bbc0a22a941777e2ea6
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5407
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Change-Id: I654ca745f7404b86aa25fb2e696751d616d0ca03
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5517
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
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Change-Id: I2e9ab68263648af8c9d46999e960f0a0711b61d7
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5516
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
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This patch implements a simple interface between the EC and mainboard
ASL code. This interface does not rely on the preprocessor, and
prevents name conflicts by scoping the interface methods. As this
interface is documented on the coreboot wiki, an in-tree documentation
is not provided.
Change-Id: If0b09be4f5e17cc444539a30f0186590fa0b72b5
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5515
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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There is only one lid switch, so it does not make sense to number it.
This naming is also consistent with the examples in the ACPI spec.
Change-Id: Ida0a4a89ca03b2aad4fc77e52996e86332d370cd
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5545
Tested-by: build bot (Jenkins)
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
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This is handled by generating an SMI when GEVENT22 goes low. This pin
is driven by the EC when the lid opens or closes. This SMI is
disabled when switching to ACPI mode, so ACPI OSes are not affected.
Change-Id: I38193572bf0416fd642002dba94c19257f0f6f5b
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/171
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Refactor hudson_enable_gevent_smi() to allow configuring the interrupt
mode and trigger level. Move the utilities which are useful in SMM to
a separate file that is included in both ramstage and SMM. This is
useful for SMI handlers which need to enable or disable GEVENT SMIs
on-the-fly. A follow-up patch makes use of this infrastructure.
Change-Id: Ifa4c300c00c178b18d7280690cfc4b8367c669b8
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/170
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Intercept the low battery SMI from the EC, and shut down the system
immediately. The EC only sends this SMI when the OS did not enable
ACPI mode, so ACPI OSes are not affected by this.
On the other hand, payloads such as GRUB or SeaBIOS will experience
the shutdown. This behavior is helpful for protecting the battery, for
example, when the OS fails to boot and we are stuck in the payload.
The low battery SMI is triggered at 10% charge, at which point the risk
of cell degradation exists.
Change-Id: I4c6c1a4feed8576cbdbb1945768de0805a1f5e42
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5527
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Consoles on CBMEM and USB have somewhat complex rules and dependencies
when they can be active. Use simple variables to test which stage
of boot is being built for each console.
Change-Id: I2489e7731d07ca7d5dd2ea8b6501c73f05d6edd8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5341
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Provide simple environment variables telling which stage of boot is
being built. Also move this to arch-agnostic location.
Change-Id: I8cbb5cf91f53e01c06e7d672b5be3f5c235f911d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5410
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
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These are potentially useful with GDB or SerialICE too.
Also it reduces the amount of actual code we put in romcc_console.
Change-Id: Id8c56e979660ad9f4eef39c648f68c7ec60edfba
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5339
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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Console is arch-agnostic and there is no need for separate
implementations for romstage and ramstage.
For SMM there is console only if DEBUG_SMI is selected.
Change-Id: I7028eeeff8bfbb9c8552972436b29a7508834d87
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5338
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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This framework was only available in ramstage. So we had to define
console output functions separately for bootblock, romstage and SMM.
Follow-up patches will re-enable all the consoles removed here,
in a more flexible fashion, and with less lines-of-code and copy-paste.
Also the driver list is not in a well-defined order and some of the
loops could exit without visiting all drivers.
NOTE: This build has no console in ramstage.
Change-Id: Iaddc495aaca37e2a6c2c3f802a0dba27bf227a3e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5337
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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SMP and IOAPIC shouldn't need to be redefined here, select is enough
Change-Id: I8a66374205b671498ce21b3f174af14e98dbfe48
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/5541
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Change-Id: I5cd9e1fcf197eae966be710b2ab24f49c6885eb0
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/5529
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Change-Id: I81de291da7b3db8d04a127d5a304b558f1c75b34
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5535
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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This function isn't used on hudson, and seems to be copy-paste from
older southbridges. It is used in sb700 to enable or disable certain
PCI devices. On hudson, these configuration bits are moved to the PM
space.
Change-Id: I9b967a2d0a5dddc8341204dadeed90460251915c
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5513
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Dumping ACPI tables in canonical form has very little value, and is
of questionable use except when debugging acpigen. Remove the code
which dumps the tables.
Change-Id: Id13c88cee8674b13e5cf5b5ed32c26283e586fd9
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5526
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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The EC may disable some functionality, such as Caps Lock LED and
battery charging if it never receives a command to go in APM mode. If
we start it in APM mode, then immediately switch to ACPI mode, it will
not get its SCIs serviced until an ACPI OS boots. If its SCIs are not
serviced, it may assume the OS has hung.
The way we solve this is to initalize the EC in APM mode, and only
switch it to ACPI when an ACPI-capable OS issues the ACPI_ENABLE
command. The switch has to be handled in SMM.
Although we aren't yet processing SMIs from the EC, we are reading the
status in order to satisfy the EC that the event is handled.
Change-Id: Iffaeb9a6f57841f456c4bce8337dc09b287f8758
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5512
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Change-Id: I9c41cccf9058c48006b247aca705a3f869ae82a6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5524
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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This enables the ACPI SMI command port in the FADT table, and sets up
the hardware accordingly. If we have SMI enabled, then we don't set
the SCI_EN bit at boot, causing the OS to send the ACPI_ENABLE
command, as required by the ACPI spec. This gives us a chance to hook
into the mainboard_smi_apmc() handler.
Change-Id: Ib4c63d55b3132578dcae48bfe2092d4ea35821dd
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5511
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Change-Id: Ifc368974a7a0dc0756431654fb89668e3846801a
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5502
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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This sets up the infrastructure to handle SMIs generated by the Hudson
southbridge. An API for interfacing to mainboard handlers is not
defined at this point. A few functions are defined to allow mainboard
code to enable SMIs from GEVENT pins. These are the only functions which
I expect to be needed anytime in the foreseeable future.
SMIs are always acknowledged and cleared, as not clearing an SMI will
cause us to re-enter the SMI, effectively bricking the machine if a
southbridge-generated SMI without a handler occurs.
Change-Id: Ibceb21ac5423eb134d3eb7d24800280b183f7619
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5494
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
Tested-by: build bot (Jenkins)
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This is a small implementation which uses only MSRs and rdtsc, without
relying on northbridge or other system hardware. It's SMM safe in that
it only reads registers, and doesn't modify the state of the hardware.
Change-Id: Ifa02ca73455b382f830c9b30b80b4f1bb18706b4
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5501
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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This is the minimal setup needed to be able to execute SMI handlers.
Only support for ASEG handlers is added, which should be sufficient
for Trinity (up to 4 cores).
There are a few hacks which need to be introduced in generic code in
order to make this work properly, but these hacks are self-contained.
They are a not a result of any special needs of this CPU, but rather
from a poorly designed infrastructure. Comments are added to explain
how such code could be refactored in the future.
Change-Id: Iefd4ae17cf0206cae8848cadba3a12cbe3b2f8b6
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5493
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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The MMIO region is set up by AGESA very early on, so we can use it to
access the PM register space in ramstage. 16-bit accessors are also
provided to simplify some setup tasks. 16-bit accesses are not
possible via PIO.
The pm2_iowrite/read accessors are removed, as they are not used.
Change-Id: Ie7967b5086eb004525c39721338c6495aedc8165
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/5503
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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