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2021-04-23util/spd_tools: Add MT53E1G32D2NP-046 WT:B LPDDR4 configMartin Roth
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>
2021-04-06util: Add DDR4 generic SPD for Micron MT40A1G16RC-062E-B 16GbKevin Chiu
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>
2021-03-22util: Add DDR4 generic SPD for H4AAG165WB-BCWENick Vaccaro
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>
2021-03-03util: Add new memory part to LP4x listAmanda Huang
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>
2021-03-03util/spd_tools/lp4x: Add 2 new parts to global memory definitionMartin Roth
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>
2021-02-27util/spd_tools: Run go fmt on all .go filesMartin Roth
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>
2021-02-27util/spd_tools: Add Cezanne support to lp4x/gen_spd.goMartin Roth
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>
2021-01-04util: Make sure all util dirs have description files at top levelMartin Roth
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>
2020-12-17util: Modify LPDDR4 spd_tools to generate SPDs for ADL boardsAmanda Huang
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>
2020-11-30lp4x: Add new memory parts and generate SPDsNick Vaccaro
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>
2020-11-16lp4x: Add new memory parts and generate SPDsDavid Wu
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>
2020-10-31.gitignore: Ignore .test/.dependencies globallyPatrick Georgi
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>
2020-10-30.gitignore: Split into subdirectory filesPatrick Georgi
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>
2020-10-12util: Add DDR4 generic SPD for H5ANAG6NCJR-XNCNick Vaccaro
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>
2020-10-03Revert "util/spd_tools: output binaries instead of hexdumps"Rob Barnes
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>
2020-09-28util: Add new memory part for zork boardsAmanda Huang
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>
2020-09-09util/spd_tools: Support comments in mem_parts_usedRob Barnes
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>
2020-09-08util/spd_tools: output binaries instead of hexdumpsMichael Niewöhner
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>
2020-08-28util: Add memory parts needed by zork boardsRob Barnes
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>
2020-08-28util/gen_spd: translate DeviceBusWidth to die bus widthNick Vaccaro
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>
2020-08-28Revert "util: update lp4x gen_part_id tool to include memory type"Aaron Durbin
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>
2020-08-28util: Add support to spd_tools for fixed idRob Barnes
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>
2020-08-28util: volteer/dedede: move generic SPDs to common locationNick Vaccaro
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>
2020-08-27util: Add check for duplicate entries in mem parts jsonRob Barnes
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>
2020-08-27util: Add Picasso and Pollock platforms to spd_toolsRob Barnes
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>
2020-08-27util/spd_tools: Support comments in jsonRob Barnes
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>
2020-08-27util/spd_tools: Remove intel subfolderRob Barnes
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>
2020-08-25util: update lp4x gen_part_id tool to include memory typeNick Vaccaro
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>
2020-08-25util: Add spd_tools to generate DDR4 SPDs for TGL boardsNick Vaccaro
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>
2020-07-07lp4x: Add new memory parts and generate SPDsDavid Wu
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>
2020-06-08spd/lp4x: Set manufacturer part name to blank (0x20)Furquan Shaikh
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>
2020-06-06lp4x: Add new memory parts and generate SPDsFurquan Shaikh
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>
2020-06-06util/spd_tools/intel/lp4x: Add a global list of LP4x memory partsFurquan Shaikh
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>
2020-06-06util: Add spd_tools to generate SPDs for TGL and JSL boardsFurquan Shaikh
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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