77 lines
2.1 KiB
Bash
77 lines
2.1 KiB
Bash
|
#!/bin/bash
|
||
|
|
#
|
||
|
|
# This file is part of the coreboot project.
|
||
|
|
#
|
||
|
|
# This program is free software; you can redistribute it and/or modify
|
||
|
|
# it under the terms of the GNU General Public License as published by
|
||
|
|
# the Free Software Foundation; version 2 of the License.
|
||
|
|
#
|
||
|
|
# This program is distributed in the hope that it will be useful,
|
||
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
# GNU General Public License for more details.
|
||
|
|
#
|
||
|
|
#
|
||
|
|
# Parses spd hex files and outputs the contents in various formats
|
||
|
|
#
|
||
|
|
#
|
||
|
|
# Outputs csv, set, and json in same folder as SPD_HEX_FILE
|
||
|
|
#
|
||
|
|
# Example:
|
||
|
|
# decode_spd.sh ../../src/mainboard/google/zork/spd/micron-MT40A512M16TB-062E-J.spd.hex
|
||
|
|
#
|
||
|
|
# Outputs ../../src/mainboard/google/zork/spd/micron-MT40A512M16TB-062E-J.spd.{json|csv|set}
|
||
|
|
#
|
||
|
|
# TODO: This script assumes bincfg binary is at ../bincfg/bincfg (which is the
|
||
|
|
# result of running the bincfg make), and the specs are at
|
||
|
|
# ../bincfg/*.spec. This dependency should be made more resilliant and
|
||
|
|
# configurable.
|
||
|
|
|
||
|
|
set -e
|
||
|
|
|
||
|
|
function read8 () {
|
||
|
|
echo $(( 16#$(xxd -s "${2}" -l 1 -p "${1}") ))
|
||
|
|
}
|
||
|
|
|
||
|
|
for file in "$@"
|
||
|
|
do
|
||
|
|
bintmp=$(mktemp)
|
||
|
|
outfile="${file%.hex}.set"
|
||
|
|
|
||
|
|
echo "Decoding ${file}, outputting to ${outfile}"
|
||
|
|
|
||
|
|
grep -v '^#' "${file}" | xxd -r -p - "${bintmp}"
|
||
|
|
dram_type=$(read8 "${bintmp}" 2)
|
||
|
|
if [ ! "${dram_type}" -eq 12 ]
|
||
|
|
then
|
||
|
|
#TODO: Handle other dram types
|
||
|
|
printf "Error: Expecting dram4 (12), got %d\n" "${dram_type}"
|
||
|
|
continue
|
||
|
|
fi
|
||
|
|
|
||
|
|
revision=$(read8 "${bintmp}" 1)
|
||
|
|
if [ ! "${revision}" -eq $((0x13)) ]
|
||
|
|
then
|
||
|
|
printf "Warning: Expecting revision 0x13, got 0x%x.\n" "${revision}"
|
||
|
|
fi
|
||
|
|
|
||
|
|
module_type=$(read8 "${bintmp}" 3)
|
||
|
|
case "${module_type}" in
|
||
|
|
1) # RDIMM
|
||
|
|
spec="../bincfg/ddr4_registered_spd_512.spec"
|
||
|
|
;;
|
||
|
|
2 | 3) #UDIMM | SO-DIMM
|
||
|
|
spec="../bincfg/ddr4_unbuffered_spd_512.spec"
|
||
|
|
;;
|
||
|
|
* )
|
||
|
|
printf "Error: Unhandled module type %d.\n" "${module_type}"
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
|
||
|
|
../bincfg/bincfg -d "${spec}" "${bintmp}" "${outfile}"
|
||
|
|
grep -v '^#' "${outfile}" | sed -e 's/ = \([^,]\+\)/: "\1"/g' \
|
||
|
|
> "${file%.hex}.json"
|
||
|
|
grep -v -e '^#' -e '^{' -e '^}' "${outfile}" | sed -e 's/=/,/g' \
|
||
|
|
> "${file%.hex}.csv"
|
||
|
|
done
|