diff options
| author | Robert Zieba <robertzieba@google.com> | 2022-04-01 09:48:28 -0600 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-04-05 14:50:56 +0000 |
| commit | 255b1fb38bed3abf0086cb7f363c56f80509debd (patch) | |
| tree | bdab8c9822eeab86814348d09f9a9cc74ecdbeb9 /util/spd_tools/README.md | |
| parent | be1a050772a41b9927db2a94fa00874d6f789094 (diff) | |
util/spd_tools: Add ability to override SPD file for parts
This commit adds the ability to override the SPD file that is used for a
specific part.
BUG=b:224884904
TEST=Verified that generated makefile uses specified SPD file and that
it remains unchanged when this capability is not used
Signed-off-by: Robert Zieba <robertzieba@google.com>
Change-Id: I078dd04fead2bf19f53bc6ca8295187d439adc20
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63281
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Diffstat (limited to 'util/spd_tools/README.md')
| -rw-r--r-- | util/spd_tools/README.md | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/util/spd_tools/README.md b/util/spd_tools/README.md index 01bc417c8b..6f09f562eb 100644 --- a/util/spd_tools/README.md +++ b/util/spd_tools/README.md @@ -459,14 +459,16 @@ This program takes the following inputs: * The memory technology used by the board, e.g. lp4x. * The path to the directory where the generated Makefile.inc should be placed. * A CSV file containing a list of the memory parts used by the board, with an -* optional fixed or exclusive ID for each part. A fixed ID is simply an integer -* and it ensure that part (and any that share the same SPD) will be assigned -* that ID. An exclusive ID is prefixed with `*` and ensures that only parts with -* the same exclusive ID will be assigned that ID, even if they would otherwise -* share the same ID. +* optional fixed or exclusive ID for each part and an optional SPD override file. +* A fixed ID is simply an integer and it ensure that part (and any that share the same SPD) +* will be assigned that ID. An exclusive ID is prefixed with `*` and ensures that +* only parts with the same exclusive ID will be assigned that ID, even if they would +* otherwise share the same ID. When using an SPD override file, the file will be searched +* for in the directory where mem_parts_used is located, if it is not found there then it +* will be searched for in the appropriate default spd directory. * NOTE: Only assign a fixed/exclusive ID if required for legacy reasons. -Example of a CSV file using fixed and exclusive IDs: +Example of a CSV file using fixed and exclusive IDs, and SPD file overrides: ``` K4AAG165WA-BCWE,1 @@ -475,6 +477,8 @@ MT40A1G16KD-062E:E K4A8G165WC-BCWE H5AN8G6NDJR-XNC,8 H5ANAG6NCMR-XNC,*9 +H9HCNNNCPMMLXR-NEE,,H9HCNNNCPMMLXR-NEE.hex +H54G56CYRBX247,4,H54G56CYRBX247.hex ``` Explanation: This will ensure that the SPDs for K4AAG165WA-BCWE and |