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>
In the end it does not look like RCBA register offsets are fully
compatible over southbridges.
This reverts commit d2d2aef6a3.
Is squashed with revert of "sb/intel/common: Fix conflicting OIC
register definition" 8aaa00401b.
Change-Id: Icbf4db8590e60573c8c11385835e0231cf8d63e6
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/27038
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Collected timestamps indicate LZMA decompression of ramstage
is 4x slower when ROM is marked WP-cacheable, in contrast to
having ROM as US. A simple copy WP->WB with uncompressed
ramstage also appeared to be twice as slow as UC->WB copy.
It should be noted that if POSTCAR_STAGE was removed from build,
un-lzma takes 130 seconds instead of 45 milliseconds.
Change-Id: I2cf995395ef2d303ad0bc044dbfa160990a705d0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/27164
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This moves CAR stack under variable MTRRs and removes
old CAR code that used complex fixed MTRRs and placed
stack in low memory.
Change-Id: I75ec842ae3b6771cc3f7ff652adbe386c03b9a5f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Keith Hui <buurin@gmail.com>
Reviewed-on: https://review.coreboot.org/26586
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
The DEVEN defines are wrong, but weren't used at all.
Fix them as they are needed by the hybrid_graphics_driver and
use the defines instead of magic values.
Tested on Lenovo T410: The IGD turns on with the correct value.
Change-Id: Idf9fc0115de5c72f7d5d88cbb09ae1d2fee0afd0
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/27104
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
The dram controller cannot fully initialize the dram on warm
reset (receive enable calibration consistently fails) therefore
requiring cached timings.
This option is mostly useful when rebooting after having flashed a new
rom which overwrites the mrc cache region.
Change-Id: I405c0eca076fe081641ede9a670f734c98cbf8fc
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/27100
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Libgfxinit provides a better alternative to the native C init. While
libgfxinit mandates an ada compiler, we want to encourage use of it
since it is in much better shape and is actually maintained.
This way libgfxinit also gets build-tested by Jenkins.
Change-Id: I4843f52307b87cff6fa6f4d0c74b87428fefa8ac
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/26967
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Some things were coding errors, other things need to be fsb specific.
Most things here don't seem to matter all that much but better to get
it right.
Change-Id: I1afa637a16a083c3a945ba3e2a71292b005736fd
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/26565
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
It looks like this hardware has a bug where the display controller
does not work properly when dram is clocked 533MHz and the channels
are configured in non-stacked mode.
The workaround is to select stacked mode in this configuration.
Change-Id: I6f37ce15a4e98a4cdbd6d893f22846a65c8be021
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/26564
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
There seems to be a hardware bug where the combination of non-stacked
channel settings, both channels populated and 533MHz dram speed cause
the display to be unusable.
The code to actually select stacked mode based on hardware
configuration will be add in a followup patch.
This patch does the following:
* Add option to the sysinfo struct for stacked mode
* Fix programming channel 1 DRB which needs special care for the last
populated rank in stacked mode
TESTED on Intel dg41wv (with stacked mode hardcoded and dram at 533MHz)
Change-Id: I95965bfea129b37f64163159fefa1c8f16331b62
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/26563
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Use of device_t is deprecated.
Change-Id: I6adc0429ae9ecc8f726d6167a6458d9333dc515f
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/27036
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
With platforms moved to RELOCATABLE_RAMSTAGE, these
overrides no longer have a meaning.
Overrides existed because AGESA ramstage did not fit within
the default 1 MiB of RAMTOP - RAMBASE, when placed low.
Change-Id: I0185875dc550de74877c94f36128d5979e5553d6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26813
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
TSEG can be used as a stage cache and SMM can be relocated here.
Change-Id: Ifa3acce57f0c13eee326b7c203a43453c74c3161
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/25593
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
TSEG can be used as a stage cache and SMM can be relocated here.
Tested on Intel D945GCLF, still boots.
Change-Id: I0da5a00c98c4c4fb309b2691dc1d4645eb35b4fd
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/25592
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This adds a common function to decode the TSEG size from the ESMRAM
register. This will come in handy when SMM in TSEG is implemented.
This function is used both in romstage and in ramstage.
Change-Id: I4e163598752fb6cd036aec229fce439ebad74def
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/23448
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
No need to provide an option to try disable this.
Also remove explicit ´select RELOCATABLE_MODULES'
lines from platform Kconfigs.
Change-Id: I5fb169f90331ce37b4113378405323ec856d6fee
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26815
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
GCC 7.1 found an int-in-bool-context in northbridgeinit.c. The logical
`&&` in `if (shadowByte && (1 << bit))` should be changed to bitwise
`&`.
Also fix off-by-one error with the bitmasks.
Change-Id: I7d7720121d4730254542372282f5561739e7214b
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/20808
Reviewed-by: Piotr Król <piotr.krol@3mdeb.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Use of device_t has been abandoned in ramstage.
Change-Id: I31143e1c7f1c52dec9673f75d73031632049ddbf
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26529
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reducing two AGP aperture windows from default 256 MiB to
chipset minimum 4 MiB releases 504 MiB of unused MMIO space.
Thus we can decrease MMIO space reserve from 1024 MiB to 512 MiB.
Supported CPUs are 32-bit with PAE, so there is a little reason
to avoid overlarge MMIO region.
Change-Id: I34818e1ca36058309c7c5c295992ba6dda154acc
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26758
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
With implementation of LATE_CBMEM_INIT, top-of-low-memory
TOLM was adjusted late in ramstage. We do not allow that with
EARLY_CBMEM_INIT so the previous maximum of 1024 MiB of MMIO
space is now used with statically set TOLM.
Also remove support code for the obsolete LATE_CBMEM_INIT
this northbridge used.
Change-Id: Ib3094903d7614d2212fbe1870248962fbc92e412
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26585
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Fixed resources have to be registered early during
read_resources() phase, such that device allocator
will avoid them.
Change-Id: I3c120cfb96c185f0052b9b3cdd93eeed0f712491
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26770
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
