The GCFC (Graphics Clock Frequency Control) read is not used at
the line below.
As the default value is zero, let's remove unused read.
Found-by: scan-build 7.0.1-8
Change-Id: I82c567e3a5b0c0c4a8596ea0cb7693667c71b720
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34329
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
For full reset, use already defined full_reset() function.
Change-Id: Iec7dcf285f3cb1cdc8f48d348ff8496879625db5
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32377
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This patch cleans up remaining uses of raw boolean Kconfig values I
could find by wrapping them with CONFIG(). The remaining naked config
value warnings in the code should all be false positives now (although
the process was semi-manual and involved some eyeballing so I may have
missed a few).
Change-Id: Ifa0573a535addc3354a74e944c0920befb0666be
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31813
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Avoid preprocessor here, also we never set loglevel
to value of >8 so the call would not be made.
The calls to ram_check() were removed, for a long
time that function has not tested start..stop region.
Change-Id: Ib952b8905c29a5c5c289027071eb6ff59aaa330b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32032
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This patch is a raw application of
find src/ -type f | xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g'
Change-Id: I6262d6d5c23cabe23c242b4f38d446b74fe16b88
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
MMIO operations are arch-agnostic so the include
path should not be arch/.
Change-Id: I0fd70f5aeca02e98e96b980c3aca0819f5c44b98
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31691
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Datasheets describe the used command as 'I2C Read' but adding the
word 'eeprom' in between should avoid further confusion with other
block commands.
Followups will add a symmetrical pair of commands i2c_block_read()
and i2c_block_write() that operate via I2C_EN bit and have a 32
byte size restriction on block transfers. For some hardware revision
these block commands are available, while 'I2C Read' was not.
Change-Id: I4494ab2985afc7f737ddacc8d706a5d5395e35cf
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31151
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Upper 128bytes of CMOS and RCBA are already enabled at bootblock.
Tested on 945g-MA. Resuming from suspend is working fine
Change-Id: I3f34380b0e700cf60688ad58465f9cb0aeda0928
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/31107
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The register values in dram width programming changed in
commit a4fc7bef7f which broke booting on getac/p470.
TEST=getac/p470 with 2 X8DDS DRAM boots again
Change-Id: I8b3eedc8c5234e8a28948d4dc58bf565024f62ce
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/29663
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Elyes HAOUAS <ehaouas@noos.fr>
It is able to do so if timestamps are initialized.
Change-Id: Ic95313a19646b66dc1633fb680e54bfc61ec90be
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/27330
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Regarding "Intel 945G/945GZ/945GC/945P/945PL Express Chipset Family",
Document Number: 307502-005, page 91, if Channel B is empty,
all of the C1DRBs are programmed with the same value as C0DRB3.
Mobile 945 express chipset datasheet doesn't mention this specific case.
Change-Id: Ic26103aac7f920e5696b445e125d33405df4f43b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/27204
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Braces {} are not necessary for single statement blocks.
Change-Id: I2a2d8672fe3f53450dcfa53dc127b89b4aa6b75e
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26201
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
In order for ddr2.h and ddr3.h to be included in the same file it
cannot have conflicting definitions, therefore rename a few things and
move some things to a common header.
Change-Id: I6056148872076048e055f1d20a60ac31afd7cde6
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/23717
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
SPD decoding problems are no longer a good method for detecting if i2c
byte read failed, since the return value of i2c_block_read is checked.
Change-Id: I230aa22964c452cf28a9370c927b82c57e39cc62
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/21621
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This simplifies computing dram timings a lot.
This removes computation of rank size based on columns, rows,
banks,... and uses the information in SPD byte 31. The result of this
is that dimms with multiple asymmetric ranks are not supported
anymore. These however are very rare and most likely never tested on
this platform.
This also uses i2c block read instead of byte read to speed up the
raminit. The result is less time is being spend reading SPDs.
It still keeps smbus read byte as a backup if i2c block read were to
fail.
Change-Id: I97c93939d11807752797785dd88c70b43a236ee3
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18305
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Inspired by gm45 code, which sets this value the same way.
Some values for tRD on 800 and 1067MHz FSB were set wrong because the
CAS/Freq selection was wrong. CAS was often selected to low and when
fixing CAS this results in tRD being too high, due to an incorrect
lookup table which caused instability.
PASSED memtest86+ during 10h+ on 1067MHZ fsb with 667MHz ddr2, CAS 5
on GA-945GCM-S2L.
Change-Id: I8002daf25b7603131b78b01075f43fd23747dd94
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18354
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Some of these can be changed from #if to if(), but that will happen
in a follow-on commmit.
Change-Id: Id5bc8b75b1fa372f31982b8636f1efa4975b61a5
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20346
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Vendor BIOS leaves UPMC1 untouched (on 945gc the default is 0x0203).
Not running PCIEx16 init which is valid for 945gm seems to fix all
issues and instabilities related to the PEG port.
According to lspci the link width is at the desired x16.
It is unknown if devices requesting a lower width work automatically
or need more configuration.
What happens is that IGD gets disabled by the disable function in
gma.c when an external GPU is found unless
CONFIG_ONBOARD_VGA_IS_PRIMARY is set.
Setting IGD as secondary makes Linux (4.10) hang, so this behavior is
a requirement for now.
TESTED on P5GC-MX with a discrete GPU and both
CONFIG_ONBOARD_VGA_IS_PRIMARY set and unset.
Change-Id: I6da8aa7714073f4b34df5ae3c1eb4c19e27ddc97
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18549
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
As we drive both channels with the same speed,
chan0dll and chan1dll are the same.
Change-Id: I7253ea9ea66396c536c82d63c67fecb041681707
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/18472
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins)
Add a test in case we have a DIMM2 not populated but DIMM3 is.
Change-Id: I14f82afe03884740570838e7b2771233356c518d
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/18386
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
The code to set the igd frequencies is written with the mobile version
of the 945 chipset in mind and seems to cause cause strange igd
related problems on the desktop versions.
Some possible problems are:
* on 800MHz fsb CPUs the igd sometimes has artifacts on the screen;
* on 800MHz fsb CPU memtest results vary a lot;
* since a commit 45e11aa0a5 "Add/Combine Broadwell Chromebooks using
variant board scheme" that does not affect this northbridge, the
display shows garbage as soon as Linux (4.8) modesets the display.
A fix is to hardcode the core display and render clocks to their
maximum, potentially also improving graphical performance.
Vendor bios on all boards in coreboot with this northbridge have the
same value in this PCI config address.
TESTED on P5GC-MX (display works fine again in Linux) and
user reports of it making GA-945GCM-S2L run more stable.
Change-Id: I8b046edbc952631d9b79023e3d385160ff682c24
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17981
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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>
The cross clocking of 800MHz FSB CPU with 667MHz RAM was incorrect.
The result is that 800MHz FSB CPUs now properly work with 667MHz RAM.
Value taken from vendor bios on ga-945gcm-s2l and suggested by Haouas
Elyes.
Change-Id: I56c12af50c75a735af0150a4e7bce4faacc93648
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17038
Tested-by: build bot (Jenkins)
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Previously the 945gc raminit only worked for 533MHz FSB CPUs.
This extends the tRD_Mclks in drt0_table for other FSB speeds. The values are
taken from the vendor bios of Gigabyte ga-945gcm-s2l.
The result is that 1067MHz FSB CPUs now boot without problems.
800MHz FSB cpus still don't get past romstage.
Change-Id: I13a6b97d2e580512155edf66c48405a153121957
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17034
Tested-by: build bot (Jenkins)
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Nico Huber <nico.h@gmx.de>
MHCBAR(CLKCFG) was previously incorrectly written by the
sdram_program_memory_frequency function which required falsely
limiting the max dram frequency for 945GC.
TESTED on Intel d945gclf (memclock 667 and fsb 533) and
Gigabyte ga-945gcm-s2l (memclock 667 and fsb 1067)
Change-Id: I520efd69fa09fc9fde87c5301fd81121fde6a700
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16940
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
