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lib: Add library to handle SPD data in CBFS or DIMM

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Add library to:
1. add spd.bin in cbfs, generated from mainboard/spd/*.spd.hex files.
2. runtime get spd data with spd index as input.
3. fetch spd over smbus using early smbus functions.

Change-Id: I44fe1cdb883dd1037484d4bb5c87d2d4f9862bf8
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/17434
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
This commit is contained in:
Naresh G Solanki
2016-10-26 19:43:14 +05:30
committed by Aaron Durbin
parent 500ba45b2c
commit 335781ad53
4 changed files with 268 additions and 0 deletions
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18
src/lib/Makefile.inc
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@@ -279,3 +279,21 @@ subdirs-y += ../../3rdparty/libhwbase
ramstage-$(CONFIG_HAVE_MONOTONIC_TIMER) += hw-time-timer.adb
endif # CONFIG_RAMSTAGE_LIBHWBASE
romstage-$(CONFIG_GENERIC_SPD_BIN) += spd_bin.c
LIB_SPD_BIN = $(obj)/spd.bin
LIB_SPD_DEPS = $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/spd/$(f).spd.hex)
# Include spd ROM data
$(LIB_SPD_BIN): $(LIB_SPD_DEPS)
for f in $(LIB_SPD_DEPS); \
do for c in $$(cat $$f | grep -v ^#); \
do printf $$(printf '\%o' 0x$$c); \
done; \
done > $@
cbfs-files-$(CONFIG_GENERIC_SPD_BIN) += spd.bin
spd.bin-file := $(LIB_SPD_BIN)
spd.bin-type := spd