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Revert "util/spd_tools: output binaries instead of hexdumps"

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This reverts commit f23794cf04.

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>
This commit is contained in:
Rob Barnes
2020-10-02 14:51:46 +00:00
committed by Michael Niewöhner
parent 2871e0e78c
commit 34cf7ccebc
5 changed files with 47 additions and 39 deletions
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20
util/spd_tools/ddr4/README.md
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@ -171,7 +171,7 @@ string like "9 10 11 12 14".
This tool generates the following files using the global list of
memory parts in JSON format as described above:
* De-duplicated SPDs required for the different memory parts. These
SPD files are named (ddr4-spd-1.bin, ddr4-spd-2.bin, and so on)
SPD files are named (ddr4-spd-1.hex, ddr4-spd-2.hex, and so on)
and placed in the directory provided as an input to the tool.
* CSV file representing which of the deduplicated SPD files is used
by which memory part. This file is named as
@ -179,11 +179,11 @@ memory parts in JSON format as described above:
as an input to the tool along with the generated SPD
files. Example CSV file:
```
MEMORY_PART_A, ddr4-spd-1.bin
MEMORY_PART_B, ddr4-spd-2.bin
MEMORY_PART_C, ddr4-spd-3.bin
MEMORY_PART_D, ddr4-spd-2.bin
MEMORY_PART_E, ddr4-spd-2.bin
MEMORY_PART_A, ddr4-spd-1.hex
MEMORY_PART_B, ddr4-spd-2.hex
MEMORY_PART_C, ddr4-spd-3.hex
MEMORY_PART_D, ddr4-spd-2.hex
MEMORY_PART_E, ddr4-spd-2.hex
```
## Tool 2 - gen_part_id.go
@ -242,10 +242,10 @@ Sample Makefile.inc:
## This is an auto-generated file. Do not edit!!
SPD_SOURCES =
SPD_SOURCES += ddr4-spd-1.bin # ID = 0(0b0000) Parts = MEMORY_PART_A
SPD_SOURCES += ddr4-spd-2.bin # ID = 1(0b0001) Parts = MEMORY_PART_B, MEMORY_PART_D
SPD_SOURCES += ddr4-spd-empty.bin # ID = 2(0b0010)
SPD_SOURCES += ddr4-spd-3.bin # ID = 2(0b0010) Parts = MEMORY_PART_C
SPD_SOURCES += ddr4-spd-1.hex # ID = 0(0b0000) Parts = MEMORY_PART_A
SPD_SOURCES += ddr4-spd-2.hex # ID = 1(0b0001) Parts = MEMORY_PART_B, MEMORY_PART_D
SPD_SOURCES += ddr4-spd-empty.hex # ID = 2(0b0010)
SPD_SOURCES += ddr4-spd-3.hex # ID = 2(0b0010) Parts = MEMORY_PART_C
```
NOTE: Empty entries may be required if there is a gap created by a memory part
with a fixed id.