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This change adds the following memory parts to LP4x global list and
generates SPDs using gen_spd.go for ADL:
1. H54G46CYRBX267
2. H54G56CYRBX247
3. K4U6E3S4AB-MGCL
4. K4UBE3D4AB-MGCL
BUG=b:194686484 b:194765811
TEST=build.
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: If85088f843ab11cc531a3975b5cac3e36b573970
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56597
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
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Add SPD support for DDR4 memory part
BUG=b:190020997
TEST=none
Change-Id: I423131cb674e1e5ec699c7a28e5b5e6746247b2a
Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55164
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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CB:52586 ("util/spd_tools: Add MT53E1G32D2NP-046 WT:B LPDDR4 config")
incorrectly set ranks per channel to 1. However, MT53E1G32D2NP-046 WT:B
part has 2 channels per die and 2 physical dies. Each channel in each die shares DQ-DQS lines with the channel in other die and uses separate CS lines. Thus, number of ranks per channel is 2.
This change fixes the attribute ranksPerChannel for MT53E1G32D2NP-046 WT:B in LP4x global config by setting it to 2.
BUG=b:186616388
Change-Id: Iba87754ca04c2e026a9cbc8ef07412b467140cba
Signed-off-by: Amanda Huang <amanda_hwang@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55000
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This new definition is for MT53E512M32D1NP-046 WT:B used on Cret.
BUG=b:183057749
TEST=Generate SPDs
Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: Ica5df61d96d2c4cbe62a560a53bd3bd08eb121f9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54746
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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The revision B version of the MT53E1G32D2NP-046 memory chip will be used
in the next guybrush build. It has a different internal layout than the
Revision A part, with 2 ZQ lines per module instead of 1.
BUG=b:186027256
TEST=Build only
Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I066f40eb890648a9be17cfe0cee20d299000c11a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52586
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
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Add SPD support for Micron DDR4 memory part MT40A1G16RC-062E-B 16Gb
BUG=b:184024142
TEST=none
Change-Id: I438310fb74d96953bc83374df3109e4c56192a5f
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44861
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
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Add SPD support for DDR4 memory part H4AAG165WB-BCWE.
BUG=b:181732562
TEST=none
Change-Id: I923fcbd08875a2a581fba4b1db00a4d1c1bb11cf
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51666
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add memory part MT53E2G32D4NQ-046 to LP4x global list. Attributes
are derived from data sheets.Also, regenerate the SPD files for ADL
SoC using the newly added parts.
BUG=b:181378727
TEST=Compared generated SPD with data sheets and checked in SPD
Change-Id: Ic06e9d672a2d3db2b4ea12d15b462843c90db8f6
Signed-off-by: Amanda Huang <amanda_hwang@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51167
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This adds the definitions for MT53E1G32D4NQ-046 WT:E used on Majolica,
and the NT6AP256T32AV-J1 part used on Guybrush.
BUG=b:178715165
TEST=Generate SPDs
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I7cd729fc72d8f44a449429e97683b2ca1f560f2c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51057
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
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This just reformats these files. go fmt should probably be
run on the check-in of every .go file.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I70ced115bad42d123474b18bbff2e4c0a16f3d88
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51019
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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To supply memory information for Guybrush, the lpddr4x script for
generating SPDs needs to be updated for Cezanne.
BUG=b:178722935
TEST=Add the part used on Majolica to the global lpddr4x json file
and verify that the output is similar to the actual SPD used for
Majolica.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I1f522cb4a92b4fe4c26cad0689437c33ec44befe
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51015
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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New util directories have been added with no description.md file.
The description file for supermicro was added at a secondary level,
which doesn't help a user find the util since no path was added. Move
it up to the top level.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I40b4c25dd7706513e96c6b8078a34160f8bb901e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48961
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tom Hiller <thrilleratplay@gmail.com>
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Generates de-duplicated SPD files using a global memory part
list provided by the mainboard in JSON format.
BUG=b:173132516
Change-Id: I4964ec28d74ab36c6b6f2e9dce6c923d1df95c84
Signed-off-by: Amanda Huang <amanda_hwang@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48526
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add MT53D512M64D4NW-046 WT:F memory part to LP4x global list of
available LP4x parts and to the global JSON file containing LP4x parts
and their characteristics.
BUG=b:172993397
TEST=none
Change-Id: I09c6eab640c169dbdb451964967d14a31e314496
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47980
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Rob Barnes <robbarnes@google.com>
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This change adds the following memory parts to LP4x global list of
available LP4x parts and to the global JSON file containing LP4x parts
and their characteristics.
1. H9HCNNNCRMBLPR-NEE
2. H9HCNNNFBMBLPR-NEE
3. MT53D1G64D4NW-046 WT:A
BUG=b:172751925,b:172781673,b:172782100,b:172781562
TEST=cd <path_to_coreboot_src>/util/spd_tools/lp4x &&
./gen_spd <path_to_coreboot_src>/src/soc/intel/tigerlake/spd \
global_lp4x_mem_parts.json.txt "TGL"
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: I37702770f707fe078920694468552c5db59c478f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47350
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Caveh Jalali <caveh@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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These were originally ignored only inside util/ but these files
shouldn't be tracked anywhere.
Change-Id: Ie0846bd8bdd6e52f420f9dd2e72a8a922102ff90
Signed-off-by: Patrick Georgi <patrick@georgi.software>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47012
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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There's no need for the global list of files to ignore, so use git's
ability to work with more local configuration.
Change-Id: I50882e6756cbc0fdfd899353cc23962544690fb3
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46879
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add SPD support for DDR4 memory part H5ANAG6NCJR-XNC.
BUG=b:161772961
TEST=none
Change-Id: I71e4de9a28f78bbf8c7de1fcafa3596276a5f2f9
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45962
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This reverts commit f23794cf04030bb8d1d7ebe0a3634dffd092e2f7.
Reason for revert: This change breaks compatibility if the changes
in CB:44775 are not also included. CB:44775 is still under discussion,
so revert this change to make spd_tools usable again.
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I5840a1b895dcbc8b91c76d8b60df2f95b93a4370
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44999
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add memory part H5ANAG6NDMR-XNC. Attributes are derived from data
sheets.
BUG=b:165611994
TEST=Compared generated SPD with data sheets and checked in SPD
Change-Id: Ifdcc7536441e9f0b94543c6f06fe466596f752dc
Signed-off-by: Amanda Huang <amanda_hwang@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45647
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
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Allow comments prefixed with '#' in mem_parts_used csv file.
BUG=None
TEST=Run gen_part_id with mem_parts_used file containing comments
Change-Id: Ia9e274d45aa06dea7a3a5f8cd1c8ee2b23398876
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44950
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Instead of generating hexdumps, output binary SPD files since we plan to
convert all hex SPD files to binary. Also adjust the file extension
where needed.
Test: compared generated binaries with converted binaries from hex files
Change-Id: Ie99d108ca90758d09dbefad20fe6c9f7fc263ef1
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44878
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Add memory parts needed by zork boards. Attributes are derived from data
sheets.
BUG=b:162939176
TEST=Compared generated SPDs with data sheets and checked in SPDs
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I67f205f9af24bbc5c12656be1f363a15fe975955
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44447
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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If a memory part is a x16 part that has two dies and only a single
rank, then the x16 describes the part width (since this solution will
need to be a stacked solution) and as such, we must translate the
DeviceBusWidth to the "die bus width" instead.
Change DeviceBusWidth variable name to PackageBusWidth to be more
descriptive
BUG=b:166645306, b:160157545
TEST=run gen_spd and verify that spds for parts matching description
above changed appropriately.
Change-Id: Ia6f3ca109d344b7a015da28125a94ce10d2bdfb8
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44870
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This reverts commit eb7a1dd80e72ef435c71650284f355f7f57ebe72.
MEMORY_TYPE = lines in Makefiles are not longer needed. Drop it.
Change-Id: I96ac39a30555a870e7778a0e71d738407b6b89ef
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44895
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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For boards that have already assigned memory ids, there needs to be a
way to fix parts to a specific id. After assigning all the fixed ids the
tool still attempts to minimize the SPDs entries. Since a fixed ID could
be anywhere, gaps can be created in the list. So an empty SPD entry is
created to fill the gaps in the list until they are used.
BUG=b:162939176
TEST=Generate various outputs
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I1f8ea1ff4f33a97ab28ba94896a1054e89189576
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44463
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
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Now that generic SPD files have the memory type prepended to the
filename, they can be stored in the same location. This CL moves
the generic SPDs to the new location.
Change the ddr4 gen_part_id.go and gen_spd.go tools to use
"ddr4_spd_manifest.generated" instead of "spd_manifest.generated".
Change the lpddr4x gen_part_id.go and gen_spd.go tools to use
"lp4x_spd_manifest.generated" instead of "spd_manifest.generated".
Move TGL DDR4 and LPDDR4x generic SPDs into a common location.
Move JSL DDR4 and LPDDR4x generic SPDs into a common location.
Change the volteer/spd/Makefile.inc to use the new path for the spds.
Change the dedede/spd/Makefile.inc to use the new path for the spds.
BUG=b:165854055
TEST="emerge-volteer coreboot" and verify all variants build correctly.
Change-Id: I83b088cb718d15ffd3012c84a12b5231ae84a3e4
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44648
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Check for duplicate entries in mem parts json file.
BUG=b:162939176
TEST=Verified that tool throws error when there is a duplicate.
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I7c638c7938958727cfc832e7b4556acbc04b0ca4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44478
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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PCO = Picasso
PLK = Pollock
BUG=b:162939176
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I43b74f68871062112f53fbbef8a170db53734b3e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44477
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Allow comments in json file for better documentation. Comments must be
on seperate line.
BUG=none
TEST=Injest global_ddr4_mem_parts.json.txt with comments
Change-Id: I51295408d4f916708e4ed5bc42d5468ccdc68a6b
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44834
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Move ddr4 and lp4x to spd_tools root folder. The tool now applies to non
intel platforms.
BUG=b:162939176
TEST=Run tool
Signed-off-by: Rob Barnes <robbarnes@google.com>
Change-Id: I0941ea036d760ee27eb34f259f4506a4b7584bee
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44844
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add "MEMORY_TYPE = lp4x" to the generated Makefile.inc to indicate
this is lpddr4x memory and to use the generic SPDs from the lpddr4x
respository of SPDs.
BUG=b:160157545
TEST=run gen_part_id for volteer and verify that it adds the line "MEMORY_TYPE =
lp4x" to the makefile produced.
Change-Id: I416690ae8aff8052474b16ef0d3e940e72e6a2fb
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44647
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Serial Presence Detect (SPD) data for memory modules is used by Memory
Reference Code (MRC) for training the memory. This SPD data is
typically obtained from part vendors but has to be massaged to format
it correctly as per JEDEC and MRC expectations. There have been
numerous times in the past where the SPD data used is not always
correct.
In order to reduce the manual effort of creating SPDs and generating
DRAM IDs, this change adds tools for generating SPD files for DDR4
memory used in memory down configurations on Intel Tiger Lake (TGL)
based platforms. These tools generate SPDs following JESD79-4C and
Jedec "4.1.2.L-5 R29 v103" specification.
Two tools are provided:
* gen_spd.go: Generates de-duplicated SPD files using a global memory
part list provided by the mainboard in JSON format. Additionally,
generates a SPD manifest file (in CSV format) with information about
what memory part from the global list uses which of the generated
SPD files.
* gen_part_id.go: Allocates DRAM strap IDs for different DDR4
memory parts used by the board. Takes as input list of memory parts
used by the board (with one memory part on each line) and the SPD
manifest file generated by gen_spd.go. Generates Makefile.inc for
integrating the generated SPD files in the coreboot build.
BUG=b:160157545
Change-Id: I263f936b332520753a6791c8d892fc148cb6f103
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44429
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This change adds the following memory parts to LP4x global list and
generates SPDs using gen_spd.go for TGL:
1. MT53E512M64D4NW-046 WT:E
2. MT53E1G64D8NW-046 WT:E
BUG=b:159195585,b:152936481,b:156435028
TEST=build.
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: If69087e5e189b3e0f70e5f1afbfe3f884173d3b1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43060
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
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As per JEDEC spec, manufacturer part name should be set to
blank (0x20). This change updates gen_spd.go to set bytes 329-348 as
0x20 and regenerates SPDs for TGL and JSL.
Change-Id: I6af18d89afd7264cec7e54b38e95df83d55aa058
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42023
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change adds the following memory parts to LP4x global list and
generates SPDs using gen_spd.go for TGL and JSL:
1. MT53E512M32D2NP-046 WT:E
2. K4U6E3S4AA-MGCR
3. H9HCNNNCPMMLXR-NEE
4. K4UBE3D4AA-MGCR
BUG=b:157862308, b:157732528
Change-Id: Ib7538247d39dfe5faab277d646f87f09103d6969
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41989
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change adds a JSON file (`global_lp4x_mem_parts.json.txt`)
containing global list of LP4x memory parts to live along with the spd
tools since the part information is not really any SoC or mainboard
dependent and comes directly from the part datasheet. It can be shared
by mainboards based on different platforms supported by the tools.
BUG=b:155239397,b:147321551
Change-Id: I9e2f98fc9c1c8a7f73c9a1bfab22c996de222a32
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41874
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Serial Presence Detect (SPD) data for memory modules is used by Memory
Reference Code (MRC) for training the memory. This SPD data is
typically obtained from part vendors but has to be massaged to format
it correctly as per JEDEC and MRC expectations. There have been
numerous times in the past where the SPD data used is not always
correct.
In order to reduce the manual effort of creating SPDs and generating
DRAM IDs, this change adds tools for generating SPD files for LPDDR4x
memory used in memory down configurations on Intel Tiger Lake (TGL)
and Jasper Lake (JSL) based platforms. These tools generate SPDs
following JESD209-4C specification and Intel recommendations (doc
Two tools are provided:
* gen_spd.go: Generates de-duplicated SPD files using a global memory
part list provided by the mainboard in JSON format. Additionally,
generates a SPD manifest file (in CSV format) with information about
what memory part from the global list uses which of the generated
SPD files.
* gen_part_id.go: Allocates DRAM strap IDs for different LPDDR4x
memory parts used by the board. Takes as input list of memory parts
used by the board (with one memory part on each line) and the SPD
manifest file generated by gen_spd.go. Generates Makefile.inc for
integrating the generated SPD files in the coreboot build.
BUG=b:155239397,b:147321551
Change-Id: Ia9b64d1d48371ccea1c01630a33a245d90f45214
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41612
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
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