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2021-01-30nb/intel/x4x: Define and use MMCONF_BUS_NUMBERAngel Pons
Note that bootblock.c originally wrote a reserved bit of the PCIEXBAR register. The `length` bitfield was set to 0, so assume 256 busses. Moreover, the ASL reservation for MMCONFIG was only for 64 busses. Change-Id: I7366a5096aacd92401535be020358447650b4247 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49759 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-10-14nb/intel/x4x: Place raminit definitions in raminit.hAngel Pons
There's no need to have implementation details in a public header. Tested with BUILD_TIMELESS=1, Asus P5QL PRO remains identical. Change-Id: I04d8c610d3e52adecfe96cc435f0523bedf3060a Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45424 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-10-14nb/intel/x4x: Move register headers into a subfolderAngel Pons
Move all files with register definitions into a `registers` subfolder. Subsequent commits will move the remaining registers into this folder. Tested with BUILD_TIMELESS=1, Asus P5QL PRO does not change. Change-Id: I74dbd985b980d8a42bfaf2984820005320a803d3 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45421 Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-10-14nb/intel/x4x: Clean up DMIBAR/EPBAR definitionsAngel Pons
Several registers have been copy-pasted from i945 and do not exist on Eagle Lake. Moreover, other register definitions were missing. Use the newly-added definitions in existing code, in place of numerical offsets. Tested with BUILD_TIMELESS=1, Asus P5QL PRO does not change. Change-Id: I9582d159aa2344bcf261f0e4b97b15787156f6e7 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45422 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-09-25nb/intel/x4x/x4x.h: Clean up cosmeticsAngel Pons
Align groups of definitions, reflow long lines and adjust whitespace. Tested with BUILD_TIMELESS=1, Asus P5QL PRO remains identical. Change-Id: I75723fe087ef16f74ca93f6faa4d3468d7958a5c Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45420 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-09-25nb/intel/x4x/iomap.h: Rename to memmap.hAngel Pons
It primarily contains definitions for MMIO windows. Also, remove includes from files not directly using the definitions it contains. Tested with BUILD_TIMELESS=1, Asus P5QL PRO remains identical. Change-Id: Id28080d9b2924463dd3720492d5e717d65fa0071 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45419 Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-04nb/intel/x4x: Define and use `HOST_BRIDGE` macroAngel Pons
Other Intel northbridges do this. Tested with BUILD_TIMELESS=1, Asus P5QL PRO does not change Change-Id: I50785b7bf3e3cc0eade7fda4b4b2e2bb71a54c31 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44143 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2020-08-04nb/intel/x4x: Change signature of `decode_pciebar`Angel Pons
Rename it and make it return an int, like other northbridges do. Change-Id: I8bbf28350976547c83e039731d316e0911197d54 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44141 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2020-08-03nb/intel/x4x: Put host bridge registers into its own fileAngel Pons
Tested with BUILD_TIMELESS=1, Asus P5QL PRO remains identical. Change-Id: I2c59099f6ff0e9162c700c888fb8fbb3906b65e6 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43722 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-28device: Constify struct device * parameter to write_acpi_tablesFurquan Shaikh
.write_acpi_tables() should not be updating the device structure. This change makes the struct device * argument to it as const. Change-Id: I50d013e83a404e0a0e3837ca16fa75c7eaa0e14a Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40701 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2020-04-05src/northbridge: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: Id2cb642baa764fd69543460ba869cd822ab5acad Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40056 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2020-03-17src (minus soc and mainboard): Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I89b10076e0f4a4b3acd59160fb7abe349b228321 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39611 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-15nb/intel/x4x: Move to C_ENVIRONMENT_BOOTBLOCKArthur Heymans
There is some overlap between things done in bootblock and romstage like setting BARs. Change-Id: Icd1de34c3b5c0f36f2a5249116d1829ee3956f38 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36759 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-15nb/intel/x4x: Move boilerplate romstage to a common locationArthur Heymans
This adds 3 mb romstage callbacks: - void mb_lpc_setup(void) to be used to set up the superio - void mb_get_spd_map(u8 spd_map[4]) to get I2C addresses of SPDs - (optional)mb_pre_raminit_setup(int s3_resume) to set up mainboard specific things before the raminit. Change-Id: Ic3b838856b3076ed05eeeea7c0656c2078462272 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36758 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-13nb/intel/x4x.h: Include stdint.hArthur Heymans
The structs and function definition in that header require it. Change-Id: I3466ff1a28459d0285e27d368314faf747e2eac1 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36769 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-11-04nb/intel/x4x/x4x.h: Include iomap.hArthur Heymans
This is needed for the definition of the MCHBARx() macros. Change-Id: I654344451c0568f306f39365fd07371b2d6cff04 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36555 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-28nb,sb/intel: Clean up some __BOOTBLOCK__ and __SIMPLE_DEVICE__ useKyösti Mälkki
Change-Id: Ie3f3c043daa6ec18ed14929668e5acae172177b3 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35603 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2019-06-21nb/x4x: Rename {ddr,fsb}2{mhz,ps} as {ddr,fsb}_to_{mhz,ps}Elyes HAOUAS
Change-Id: I0442cc5bc54efd7e2c4e5496182c8df85acbcf91 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33491 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2018-12-03nb/intel/x4x: Use common code for SMM in TSEGArthur Heymans
This also caches the TSEG region and therefore increases MTRR usage a little in some cases. Currently SMRR msr's are not set on model_1067x and model_6fx since this needs the MSRR enable bit and lock set in IA32_FEATURE_CONTROL. This will be handled properly in the subsequent parallel mp init patchset. Tested on Intel DG41WV, resume from S3 still works fine. Change-Id: I317c5ca34bd38c3d42bf0d4e929b2a225a8a82dc Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/25597 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-07-30northbridge/x4x: add MCHBAR AND/OR/AND_OR access macrosFelix Held
Change-Id: Ie95321f3eb6fb17b17eb25e8a54670654c373706 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-on: https://review.coreboot.org/27716 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2018-06-14nb/intel/x4x: Add the option for stacked channel map settingsArthur Heymans
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>
2018-05-24nb/intel/x4x: Adapt post JEDEC for DDR3Arthur Heymans
Change-Id: I708f98dc2f36af73bb5933d186b4984649e149a1 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19918 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-05-24nb/intel/x4x/raminit: Add DDR3 enhanced mode and power settingsArthur Heymans
Change-Id: I9d34154d3ac1dd1e5400d692d4dcce70d95662c8 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19917 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-05-24nb/intel/x4x: Implement write levelingArthur Heymans
DDR3 adapted a fly-by topology which allows for better signal integrity but at the same time requires additional calibration. This is done by settings the targeted rank in write leveling mode while disabling output buffer on the other ranks. After that the DQS signal gets sampled over DQ until a transition from high to low is found. Change-Id: I695969868b4534f87dd1f37244fdfac891a417f0 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/22995 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-05-24nb/intel/x4x: Add DDR3 JEDEC initArthur Heymans
Add DDR3 JEDEC init (Power up and Initialization by setting emrs regs) This also modifies the send_jedec_cmd function as DDR3 dimms can have ranks mirrored which needs to be accounted for. The ddr3_emrs1_config array is placed externally since it is also needed for write leveling. Change-Id: I510b8669aaa48ba99fb4dcf1ece716aef26741bb Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/22994 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-05-14nb/intel/x4x/raminit: Make programming launch ddr3 specificArthur Heymans
Adds nmode to the sysinfo struct as it is needed later on. Change-Id: Ia2ca4a200a1c813b2133eb1004fbe248fa3de9ce Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19872 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-05-14nb/intel/x4x: Rename a things that are not specific to DDR2Arthur Heymans
This memory controller supports both DDR2 and DDR3 memory, yet many functions have ddr2 in their name while not being ddr2 specific. This patch renames those to avoid confusion. Change-Id: Ib3d10014f530905155e56fc52706edb4ab9f5630 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19870 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-05-14nb/x4x/raminit: Decode ddr3 dimmsArthur Heymans
Since this memory controller supports both DDR2 and DDR3 allow it to decode both while making the dram type mutually exclusive. Change-Id: I8dba19ca1e6e6b0a03b56c8de9633f9c1a2eb7d7 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19869 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-05-01nb/intel/x4x: Implement both read and write trainingArthur Heymans
This training find the optimal write DQ delay and read DQS delay settings. It does so on all lanes at the same time, like vendor (training each lane individually has poor results). The results are stored in the sysinfo struct and restored on next boots and S3 resume. This potentially increases stability as optimal settings are chosen and is more necessary for DDR3 raminit where the write DQS delays are leveled/variable due to the flyby topology. TESTED on Intel DG43GT with (2G + 1G) on each channel, see that the results are quite close to the safe original ones (that previous worked fine) and tested with memtest86+. Change-Id: Iacdc63b91b4705d1a80437314bfe55385ea5b6c1 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/22329 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-04-30nb/x4x: Get rid of device_tElyes HAOUAS
Use of `device_t` has been abandoned in ramstage. Change-Id: Ib3e708a7fa9f0a78dc704a502a2f01ee0fe209ae Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/23655 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-04-17nb/intel/x4x: Add a convenient macro to loop over bytelanesArthur Heymans
During raminit a lot of procedures need to be done for each bytelane. Change-Id: Ib9a30ffabaf5c845e962e3e79cf4a20faa1d9857 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/22347 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-04-17nb/intel/x4x: Clarify the raminit memory mappingArthur Heymans
This replaces magic values by macros and adds some comments to improve readability. Adds a convenient function to fetch the test address of a rank. Also fixes the temporary memory map by changing a write to MCHBAR 0x100 to 0x110, since this is what vendor does. (No difference observed thus far) TESTED on DG43GT Change-Id: I58923e4a8a756f4ae65f759e7d46e03fad39fab7 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/22328 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
2018-04-17nb/intel/x4x: Refactor setting default dll settingsArthur Heymans
This patch pushes these large default delay tables to a different file to reduce cluttering up the actual raminit source. While doing so it also uses more but smaller arrays and also adds the respective default delays for DDR3 which are not yet used in this patch. This patch add a function to set the read DQS delays instead of just programming magic values. (This will prove useful for DQS read training) To prepare for adding trainings on the delay values it stores these default delays in the sysinfo struct to program those. Later when trainings are implemented those trained values will be used instead of these safe default values, via using the cached sysinfo in 'mrc' cache. TESTED on DG43GT (still works fine) Change-Id: I0e3676e06586ea84fc0729469946dbc9a8225934 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/22327 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2018-04-17nb/intel/x4x: Use SPI flash to cache raminit resultsArthur Heymans
Stores information obtained from decoding dimms and receive enable results for future use. Depreciates using rtc nvram to store receive enable settings. A notable change is that receive enable results are always reused, not just on a resume from S3. This requires cbmem to be initialized a bit earlier, right after the raminit finished to be able to add the sysinfo struct to cbmem which gets cached to the SPI flash in ramstage. TESTED on Intel DG43GT with W25Q128.V. With 4 ddr2 dimms time in raminit goes from 133,857ms (using i2c block read to fetch SPD) to 21,071ms for cached results. Change-Id: I042dc5c52615d40781d9ef7ecd657ad0bf3ed08f Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/21677 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2017-12-16nb/x4x/raminit: Rewrite SPD decode and timing selectionArthur Heymans
This is mostly written from scratch and uses common spd ddr2 decode functions. This improves the following: * This fixes incorrect CAS/Freq detection on DDR2; * Fixes tRFC computation; tRFC == 78 is a valid timing which is excluded and 0 ends up being used; (TESTED) * Timings selection does not use loops; * Removes ddr3 spd decode and is re-added in follow-up patches using common ddr3 spd functions; * Raminit would bail out if a dimm was unsupported, now in some cases it just marks the dimm slot as empty; * It dramatically reduces stack usage since it does not allocate 4 times 256 bytes to store full SPDs, amongs other unused things that were stored in sysinfo; * Reports when no dimms are present; * Uses i2c block read to read SPD which is about 5 times faster than bytewise read, with a fallback to smbus mode in case of failure, which does seem to happen when the system is forcefully powered off. Change-Id: I760eeaa3bd4f2bc25a517ddb1b9533c971454071 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19143 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2017-08-20nb/intel/x4x/raminit: Rework receive enable calibrationArthur Heymans
Moves receive enable calibration to a separate file to lighten raminit.c a bit. Receive enable calibration is quite similar to gm45 so it reuses some of its function names. The functional changes are: * the minimum coarse is now reset for each channel; * on the second fine search for DQS high, TAP overflow is handled by increasing medium; * start coarse at CAS + 1 instead of CAS - 1. Other Intel northbridges do the same and the results are more in line with register dumps from vendor bios. These might improve stability. TESTED on ga-g41m-es2l Change-Id: I0c970455e609d3ce96a262cbf110336a2079da4d Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/18692 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2017-05-22nb/intel/x4x: Use a struct for dll settings instead of an arrayArthur Heymans
This makes the code more readable since it avoids messing with two dimensional arrays and needing remember what the indices mean. Also introduces an unused coarse element which is 0 for all default DLL settings on DDR2. Change-Id: I28377d2d15d0e6a0d12545b837d6369e0dc26b92 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19767 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2017-03-21nb/intel/x4x: Fix issues found by checkpatch.plArthur Heymans
Change-Id: Ie22b8bd5420f8c33df1866410af42ef41ad38362 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/18694 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
2017-02-17nb/intel/x4x: Implement resume from S3 suspendArthur Heymans
It rewrites the results of receive enable stored in the upper nvram region, to avoid running receive enable again. Some debug info is also printed about the self-refresh registers. (Not enforcing a reset here, since 0 does not necessarily mean it's not in self-refresh). Change-Id: Ib54bc5c7b0fed6d975ffc31f037b5179d9e5600b Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/17998 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-02-17nb/intel/x4x: Fix raminit on reset pathArthur Heymans
Previously the raminit failed on hot reset and to work around this issue it unconditionally did a cold reset. This has the following issues: * it's slow; * when the OS issues a hot reset some disk drives expect their 5V power supply to remain on, which gets cut off by a cold reset, causing data corruption. To fix this some steps in raminit must be ommited on the reset path. This includes receive enable calibration. To achieve this it stores receive enable results in RTC nvram for them to be rewritten on the resume path. Note: The same thing needs to be done on the S3 resume path. Calling a hot reset after raminit "outb(0x6, 0cf9)" works. Change-Id: I6601dd90aebd071a0de7cec070487b0f9845bc30 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/18009 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
2016-12-03nb/x4x: Fix sticky scratchpad register offsetArthur Heymans
Change-Id: I9b952e32dc661f5c1fa96b037b415693d8777b04 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/17685 Tested-by: build bot (Jenkins) Reviewed-by: Damien Zammit <damien@zamaudio.com>
2016-11-28nb/intel/x4x/raminit: Fix DIMM_IN_CHANNEL calculationNico Huber
Fix-up for 696abfc nb/intel/x4x: Fix and deflate `dimm_config` in raminit It didn't fix the channel-number shifting issue as intended. The channel index is either 0 or 1. DIMMs are counted from 0 to 3 where 0..1 covers channel 0, and 2..3 covers channel 1. Since we have two DIMMs per channel, we have to multiply the channel index by 2 (or shift it left by 1) to get the index of the first DIMM in the channel. Finally, to get the offset of a DIMM in the channel we take its index modulo 2 (again, the number of DIMMs per channel). Change-Id: I2784b0cb655bfe823bf5fa48b722623dfca1ddc3 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/17612 Tested-by: build bot (Jenkins) Reviewed-by: Damien Zammit <damien@zamaudio.com> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2016-11-26nb/intel/x4x: Fix and deflate `dimm_config` in raminitNico Huber
By shifting the `chan` right instead of left, values were always taken from the DIMMs of the first channel. The diff-stat also looks like an improvement. Change-Id: I605eb4f9b04520c51eea9995a2d4a1f050f02ecc Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/17587 Tested-by: build bot (Jenkins) Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Damien Zammit <damien@zamaudio.com>
2016-11-21nb/intel: Fix some spelling mistakes in comments and stringsMartin Roth
Change-Id: I4a8297397d878e38516c8df19dd311c7ef19ec06 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/17478 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
2016-09-12src/northbridge: Improve code formattingElyes HAOUAS
Change-Id: Iffa058d9eb1e96a4d1587dc3f8a1740907ffbb32 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/16414 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-09-10northbridge/intel/x4x: transition away from device_tAntonello Dettori
Replace the use of the old device_t definition inside northbridge/intel/x4x. Change-Id: I65cd02eacf57cb41ded434582ca6e9d9f655e6ea Signed-off-by: Antonello Dettori <dev@dettori.io> Reviewed-on: https://review.coreboot.org/16472 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-09-07nb/intel/x4x: Turn on PEG graphics in device enableDamien Zammit
Change-Id: I389c4630362af1c1bf6d281c9d2b7fc81bea2d5d Signed-off-by: Damien Zammit <damien@zamaudio.com> Reviewed-on: https://review.coreboot.org/16495 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-06-04nb/intel/x4x: Fix unpopulated valueDamien Zammit
Previously, 0x0 was the value being used for an unpopulated dimm on spd[62], however some DDR2 dimms have 0x0 as a valid value. Now use 0xff which is an unused value even on DDR2/DDR3. Change-Id: I55a91a6c3fe3733a7bb2abc45ca352c955c07c99 Signed-off-by: Damien Zammit <damien@zamaudio.com> Reviewed-on: https://review.coreboot.org/15058 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2016-05-31nb/intel/x4x: Add DMI/EP initDamien Zammit
The values were obtained from vendor bios at runtime. I am not 100% sure of the sequence required to initiate them, but guessed from the gm45 code. There may be some status bytes needed to be polled during the sequence that is missing, but as I don't have bios writer's datasheet it's very hard for me to know. Change-Id: Idd205e0bab5f75e01c6e3a5dc320c08639f52db8 Signed-off-by: Damien Zammit <damien@zamaudio.com> Reviewed-on: https://review.coreboot.org/14925 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-01-29nb/intel/x4x: Tidy up northbridgeDamien Zammit
- Add device enable macros - Set the PMBASE correctly through southbridge device Change-Id: I1b8cc3de96b1ecaf01e31bad8fba1fada8671c2d Signed-off-by: Damien Zammit <damien@zamaudio.com> Reviewed-on: https://review.coreboot.org/13126 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2016-01-13northbridge/intel/x4x: clean up includesMartin Roth
- Don't redefine D0F0_PCIEXBAR_LO, use the #define in x4x.h - Move TPMBASE and TPM32() definitions into iomap.h - Use "" style include for x4x.h in nortbridge files. - Move includes of .h files out of x4x.h and into the c files that need them. - Protect function definitions in bootblock. Change-Id: I3fdb579235c5446733a0ffba05fffe1a73381251 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/12849 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-12-29northbridge/intel/x4x: Intel 4-series northbridge supportDamien Zammit
Boots to console on Gigabyte GA-G41M-ES2L Ram initialization *not* included in this patch VGA native init works on analog connector Change-Id: I5262f73fd03d5e5c12e9f11d027bdfbbf0ddde82 Signed-off-by: Damien Zammit <damien@zamaudio.com> Reviewed-on: https://review.coreboot.org/11305 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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