If ramstage is not compressed, the CBFS module in romstage doesn't
need to support LZMA. Removing the LZMA module in this case can save
about 3000 bytes in romstage.
Change-Id: Id6f7869e32979080e2985c07029edcb39eee9106
Signed-off-by: Andrew Wu <arw@dmp.com.tw>
Reviewed-on: http://review.coreboot.org/3878
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
The AMD AGESA function to move the stack from cache-as-ram to
actual RAM doesn't need any help. The current implementation has
an INVD instruction just before cache-as-RAM is torn down. It isn't
needed for Trinity processors and makes Kabini boot unreliable.
Change-Id: Ibe9e4105eee032471ccbb2d537471d5fa5847d22
Signed-off-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3852
Tested-by: build bot (Jenkins)
Reviewed-by: Siyuan Wang <wangsiyuanbuaa@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
It still pointed to the old binary despite implementing the newer interface
Change-Id: Iebd5dae98168f5568f3ad6a18c5ebde9abc3ece0
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/3869
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Drop unused and commented out variable, and fix a comment while at it.
Change-Id: I1bd7d10aca949c8579433ea1c91264fd816a3fb4
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/3873
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
SEABIOS_PS2_TIMEOUT needs a default, otherwise the "allyesconfig" target
hangs in an endless loop.
The given default is correctly overridden by the (currently sole) user,
the lenovo/x60 target.
Change-Id: I3f5e347c29ccbb4d711a489d067b6c909f030bd0
Reported-by: Kyösti Mälkki
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/3874
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)
Add Kconfig option SQUELCH_EARLY_SMP and have it enabled by
default.
Console drivers have unpredictable results if multiple threads
attempt to share same resources without spinlock. Serial UARTs
have not had huge problems, only distorted output, but those
relying on cache-as-ram (CBMEM and usbdebug) may require this.
Change-Id: I7f406fdea7b6dc6a341c4da2fab56f7b7ff568b4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3854
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Move the floppy drive enumeration from _INI() and PROB(),
which stored the enumeration results into _FDE into _FDE().
_INI is called by any ACPI-capable OS on boot while _FDE
is rarely used. So it's better to run the enumeration when
requested rather than unconditionally.
Change-Id: Icf1e2a551806592faa8ba8d80fa8d02681602007
Signed-off-by: Christoph Grenz <christophg+cb@grenz-bonn.de>
Reviewed-on: http://review.coreboot.org/3604
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
The parallel port of the W83627HF can be configured on any port
between 0x100 and 0xFFC with 4 byte alignment for traditional modes
and 8 byte alignment for EPP mode. As the ACPI specification says
that the maximum acceptable starting address has to be a multiple
of the alignment granularity, correct the maximum starting address
from 0xFFC to 0xFF8.
Change-Id: I272e09d091149791f2867b1d06e4fc27bc1bb2cd
Signed-off-by: Christoph Grenz <christophg+cb@grenz-bonn.de>
Reviewed-on: http://review.coreboot.org/2942
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This allows mainboards to preconfigure a ps2-keyboard-spinup
timeout when SeaBIOS is chosen as the payload.
The Kconfig option can be changed manually if CONFIG_EXPERT is set.
Change-Id: I5732b18ef04f4bdef6236f35039656ad02011aec
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3734
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This simplifies storing SeaBIOS parameters in CBFS.
Change-Id: I301644ba0d7a9cb5917c37a3b4ceddfa59e34e77
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3733
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
The slightly hackish ioapic ressource reservation is needed for i440fx
emulation only, for q35 the ich9 southbridge driver handles this just
fine.
[ Side note: The i440fx chipset emulated by qemu is pimped up with alot
of stuff which never existed on real hardware, which leads
to tweaks like this one. ]
Change-Id: I06bf54cbc247ccf17aa9063fb7dee9def323c605
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3850
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
The board name in that variable name is not necessary, as it is not board
dependent, that means using the file as a template for making a new
coreboot port for another motherboard the variable does not need to be
changed, and just increases the code differences between AMD Parmer,
AMD Thather and ASUS F2A85-M. So use a generic name.
The same was done for AMD Persimmon (and inherited by the LiPPERT
FrontRunner/Toucan-AF) in the following commit.
commit 5e70766f14
Author: Jens Rottmann <JRottmann@LiPPERTembedded.de>
Date: Tue Feb 26 15:56:11 2013 +0100
AMD Fam14 boards: reduce unnecessary differences, 2nd attempt
Reviewed-on: http://review.coreboot.org/2529
The board name is *not* removed from the `CODEC_ENTRY` variable name as
the verb table not only depends on the codec but also on the board [1].
Having the board name in the variable name is a good indicator that the
pin configuration needs to be adapted when taking this file as a template
for a new port. If it was board independent, a default chip configuration
could be used and shared between all boards, which is unfortunately not
the case.
[1] Unfortunately I was not able to find Jens’ comment in my mail archive
and in the Gerrit Web interface. Not sure where it is, but I am sure
he made that comment.
Change-Id: I440a306cf4ff0a5b1b61d1983d70c66d129904d0
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/3199
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
As Nico noticed for the W83627DHG, the power management bits to power down
individual logical devices on Winbond superios are named counterintuitively
and need to be set when the logical device should be powered.
This corrects the power management methods for the W83627HF.
Change-Id: I98bccd550a0513c62bfa9480275f88c566691bc8
Signed-off-by: Christoph Grenz <christophg+cb@grenz-bonn.de>
Reviewed-on: http://review.coreboot.org/3605
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
For reasons explained in a previous CL, it might be necessary to "load" a file
from CBFS in place. The loading code in CBFS was, however, zeroing the area of
memory the stage was about to be loaded into. When the CBFS data is located
elsewhere this works fine, but when it isn't you end up clobbering the data
you're trying to load. Also, there's no reason to zero memory we're about to
load something into or have just loaded something into. This change makes it
so that we only zero out the portion of the memory between what was
loaded/decompressed and the final size of the stage in memory.
Change-Id: If34df16bd74b2969583e11ef6a26eb4065842f57
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3579
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Instead of returning 0 on success and -1 on error, return the decompressed
size of the data on success and 0 on error. The decompressed size is useful
information to have that was being thrown away in that function.
Change-Id: If787201aa61456b1e47feaf3a0071c753fa299a3
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3578
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
The ThinkPad keyboard controller sometimes needs a while in order
to initialize, so let's ask SeaBIOS to wait for it.
This change ensures that the internal keyboard always functions
correctly on the ThinkPad when coreboot is built with SeaBIOS as
payload.
Change-Id: I562475ec98b0c1f5d0debf6e9b597748a420f068
Signed-off-by: Peter Stuge <peter@stuge.se>
Reviewed-on: http://review.coreboot.org/3735
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
QEMU has a bunch of non-standard virtual devices on various I/O ports.
Allocate resources for them so the coreboot resource management knows
those ports are used.
Change-Id: I51a85967cf2dcd634b0c883210bb52c0c34c8283
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: http://review.coreboot.org/3851
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The _OSC method is used to tell the OS what capabilities it can
take control over from the firmware. This method is described
in chapter 6.2.9 of the ACPI spec v3.0. The method takes 4
inputs (UUID, Rev ID, Input Count, and Capabilities Buffer) and
returns a Capabilites Buffer the same size as the input Buffer.
This Buffer is generally 3 Dwords long consisting of an Errors
Dword, a Supported Capabilities Dword, and a Control Dword.
The OS will request control of certain capabilities and the
firmware must grant or deny control of those features. We do not
want to have control over anything so let the OS control as much
as it can.
The _OSC method is required for PCIe devices. During Linux boot,
an error is logged to dmesg if _OSC is not found.
Change-Id: Icf6e7a82284d03d23fd30ee7b7db17754e988c9a
Signed-off-by: Mike Loptien <mike.loptien@se-eng.com>
Reviewed-on: http://review.coreboot.org/3823
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Adding the 'WordBusNumber' macro to the PCI0
CRES ResourceTemplate in the AMD FCH ACPI code.
This sets up the bus number for the PCI0 device
and the secondary bus number in the CRS method.
This change came in response to a 'dmesg' error
which states:
'[FIRMWARE BUG]: ACPI: no secondary bus range in _CRS'
By adding the 'WordBusNumber' macro, ACPI can set
up a valid range for the PCIe downstream busses,
thereby relieving the Linux kernel from "guessing"
the valid range based off _BBN or assuming [0-0xFF].
The Linux kernel code that checks this bus range is
in `drivers/acpi/pci_root.c`. PCI busses can have
up to 256 secondary busses connected to them via
a PCI-PCI bridge. However, these busses do not
have to be sequentially numbered, so leaving out a
section of the range (eg. allowing [0-0x7F]) will
unnecessarily restrict the downstream busses.
Change-Id: Ib2d36f69a26b715798ef1ea17deb0905fa0cad87
Signed-off-by: Mike Loptien <mike.loptien@se-eng.com>
Reviewed-on: http://review.coreboot.org/3822
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Split the Family16 (Kabini) DSDT file into logical regions.
Olive Hill is the only mainboard and Kabini is the only NB/CPU
currently using Family16 AGESA code.
Change-Id: I9ef9a7245d14c59f664fc768d0ffa92ef5db7484
Signed-off-by: Mike Loptien <mike.loptien@se-eng.com>
Reviewed-on: http://review.coreboot.org/3821
Tested-by: build bot (Jenkins)
Hook this up into the DMP Vortex86EX. Before under Windows XP
the microphone did not work. With the new logic it does. Now
line-in,line-out and microphone all work.
The verb data table is generated by Realtek.
Change-Id: I1bcef898a15547c86c12c4b52ce0069d13e23c84
Signed-off-by: Andrew Wu <arw@dmp.com.tw>
Reviewed-on: http://review.coreboot.org/3855
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
This module uses cim_verb_data to detect and initialize HD audio
codecs.
The module source code is based on southbridge/intel/sch/audio.c and
southbridge/nvidia/mcp55/azalia.c.
Change-Id: I810fef6fdcf55d66f62da58c3d7d99f006559d6e
Signed-off-by: Andrew Wu <arw@dmp.com.tw>
Reviewed-on: http://review.coreboot.org/3844
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Add option to log changes in USB 2.0 EHCI debug port connection.
For romstage move usbdebug as the last initialised console so one
actually can see these messages.
Init order of consoles in ramstage is undetermined and unchanged.
Change-Id: I3aceec8a93064bd952886839569e9f5beb6c5720
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3387
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
These Kconfig entries were forgotten from the commit
that re-enabled usbdebug for these southbridges.
Change-Id: Ia17f1dd3340408da7c033c2c949404d2636bed44
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3849
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Now that MMCONF_SUPPORT_DEFAULT is enabled by default remove
the pcie explicit accesses. The default config accesses use
MMIO.
Change-Id: I58c4b021ac87a035ac2ec2b6b110b75e6d263ab4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3810
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Rearranged the F2A85-M DSDT file to match the functionality found
on Parmer. As with the Parmer implementation, the F2A85-M dsdt.asl
file in the mainboard directory contains only #include references to
the appropriate files.
As with Parmer, some include files have no content but are left as a
template for other platforms and as placeholders for completing the
ACPI implementation for F2A85-M.
Change-Id: Ic72cb6004538ca9d9f79826b9b3c8d6aeb25017c
Signed-off-by: Kimarie Hoot <kimarie.hoot@se-eng.com>
Reviewed-on: http://review.coreboot.org/3805
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin@se-eng.com>
Rearranged the Thatcher DSDT file to match the functionality found
on Parmer. As with the Parmer implementation, the Thatcher dsdt.asl
file in the mainboard directory contains only #include references to
the appropriate files.
As with Parmer, some include files have no content but are left as a
template for other platforms and as placeholders for completing the
ACPI implementation for Thatcher.
Change-Id: Ie44a32959cc547840914365e872416d4624d33df
Signed-off-by: Kimarie Hoot <kimarie.hoot@se-eng.com>
Reviewed-on: http://review.coreboot.org/3804
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin@se-eng.com>
Support code for sb700 and sb800 existed already, but Kconfig and
compile-time issues prevented from enabling USBDEBUG for boards
with the affected AMD southbridges.
Change-Id: I49e955fcc6e54927320b9dc7f62ea00c55c3cedf
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3439
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
With USBDEBUG selected, the file is built for both romstage and
ramstage. For the ramstage build, we need to explicitly use the
simple PCI config operations without devicetree.
Change-Id: I2de8d9c77bb458ba797c3aac9e2cd0d653e06684
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3437
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This change brings back the possibility to disable console
output while in romstage, like before commit d2f45c65.
For some platforms (AMD multi-socket) USBDEBUG and/or CBMEM
CONSOLE do not work correctly for romstage due the way
cache-as-ram is set up, but might already work for ramstage.
Change-Id: Id8d830e02a18129af419d3b5860866acf315d531
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3846
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Copied from a similar commit for Family 10h AGESA [1]
Remove the fourth argument in the comments. Luckily the compiler,
at least gcc, warns about a wrong number of arguments, and therefore
no incorrect code resulted from the wrong documentation.
[1] 07e0f1b AMD AGESA: Fix argument list for `PCIE_DDI_DATA_INITIALIZER` in comments
[2] fc47bfa Revert "AMD f14 vendorcode: Fix warning"
Change-Id: I3806e368a823e4a40d22e99b91bf3598d9ed2f15
Signed-off-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3840
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin@se-eng.com>
This is the same patch as an earlier one applied to family 15 [1].
Static analysis often flags case statements that do not include
a terminating "break;" statement. Eclipse's CODAN is an example
of this. This changelist modifies amdlib.c to terminate
case statements with "break;".
[1] e44a89f amd/agesa/f15/Lib/amdlib.c: Add missing breaks ...
Change-Id: Ibd1ae6f2b52fde07de3d978d174975f4d93647ab
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3839
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin@se-eng.com>
Change-Id: I7f6f6ff444fda4bdf233db1383919772afe6b635
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3815
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin@se-eng.com>
Olive Hill does not have a Super I/O or keyboard controller.
Change-Id: I8c1e5d8c20c4a964fe8d98df920b416382a26d9d
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3848
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin@se-eng.com>
The VBIOS device ID is set by processor family using the
map_oprom_vendev() function in the northbridge code. There
is rarely a reason why this should be overridden by the mainboard.
Since Kabini includes a default VBIOS vendor/device ID in the
northbridge Kconfig code, remove the setting from the Olive Hill
mainboard settings.
Change-Id: Icd69155f5b51105d564dd82c89e4bb54a6118a82
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Tested-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3816
Tested-by: build bot (Jenkins)
Add CONST modifiers to read-only pass-by-reference function
parameters in AGESA. This allows the use of "const" modifiers
on the declaration of lookup tables that are pass-by-reference.
These will be used to identify tables that are copied onto the
HEAP but don't need to be.
This same change was made for AMD Trinity APUs (Family15tn) [1].
[1] 283ba78 AGESA: Add "const" modifier to function parameters
Change-Id: I2bdd9fc5e027e938de9df0f923b95da934bb48dc
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Tested-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3837
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
This changelist was cherry-picked from merged community code
for Parmer [1] and the paths modified so that the Parmer
modification is applied against Olive Hill.
[1] 0086162 AMD SATA: Correct _them implement_ ... in comments
Change-Id: I9849e9a75dacfde15331c4200d72343a59036f14
Signed-off-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3841
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Change-Id: I14285f0677003fbf8b9b112207af202658807894
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-by: Bruce Griffith <bruce.griffith@se-eng.com>
Tested-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3806
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Change-Id: Ifc180e6fcd594dbedc2512ea5bef283a3ad689d3
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Tested-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-on: http://review.coreboot.org/3814
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Eliminate an unnecessary copy of the DDI descriptor list and
the PCIe port descriptor list. As descriptor tables, these
tables do not need dynamic updating and should be used from
ROM without runtime copying.
There will be a corresponding patch for AGESA that adds CONST
modifiers to function parameters that are pass-by-reference
"IN" values (read-only pointers).
Change-Id: I7ab78e58041e9247db22d0f97a6f76d45f338db0
Signed-off-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Tested-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/3818
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
This patch sets a bit in the Yangtze southbridge to enable
the extra protocol necessary to handle port multiplier chips.
This has been turned on during most of Kabini development
without any notable impact. Olive Hill has an optional daughter
board that incorporates Silicon Image Steel Vines chips. This
change has been tested with and without the daughter board. This
change can be regression tested using any Hudson-based motherboard,
although it has no impact on boards with discreet Hudson/Bolton
southbridges.
This was tested for impact on SATA performance in the absence of
a port multiplier using the IOZone benchmarks within the Phoronix
Test Suite. A SATA 3 hard drive (6.0 Gbps) and an SSD were
connected to the ports on Olive Hill without using the port
multiplier card. The test results contained more run-to-run
variation within the same configuration than was seen in the
aggregate results comparing the interface with and without the
port multiplier protocol additions. In other words, the test
had less accuracy than the impact caused by turning on port
multiplier support.
Change-Id: Ie87873b093f3e2a6a5c83b96ccb6c898d3e25f72
Signed-off-by: Bruce Griffith <bruce.griffith@se-eng.com>
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/3808
Tested-by: build bot (Jenkins)
Kyösti Mälkki