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soc/intel/common: Add Kconfig to enable compression on ME_RW blobs 

Add SOC_INTEL_CSE_LITE_COMPRESS_ME_RW Kconfig to enable compression on
ME_RW blobs. Select the Kconfig to add LZMA compressed ME_RW blobs to
ME_RW_A/B regions.

On ADL-N, this results in savings of ~665KB in each of ME_RW_A/B
regions.

FMAP REGION: ME_RW_A
Name                           Offset     Type           Size   Comp
me_rw                          0x0        raw           1275246 LZMA
(1957888 decompressed)
(empty)                        0x1375c0   null           193056 none

FMAP REGION: ME_RW_B
Name                           Offset     Type           Size   Comp
me_rw                          0x0        raw           1275246 LZMA
(1957888 decompressed)
(empty)                        0x1375c0   null           193056 none

Change-Id: I2e31c358b4969b077d65ce6369a877914d573aed
Signed-off-by: Krishna Prasad Bhat <krishna.p.bhat.d@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62358
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Reka Norman <rekanorman@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Krishna Prasad Bhat 2022-02-25 10:45:55 +05:30 committed by Felix Held
parent efdcb4634a
commit a67a92e3c0
2 changed files with 10 additions and 0 deletions
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7
src/soc/intel/common/block/cse/Kconfig
View File

@ -150,6 +150,13 @@ config SOC_INTEL_CSE_NPHY_CBFS_FILE
help help
CBFS path and file name for Intel CSE sub-partition NPHY binary CBFS path and file name for Intel CSE sub-partition NPHY binary
config SOC_INTEL_CSE_LITE_COMPRESS_ME_RW
bool
default n
depends on SOC_INTEL_CSE_LITE_SKU
help
Enable compression on Intel CSE CBFS RW blob
if STITCH_ME_BIN if STITCH_ME_BIN
config CSE_COMPONENTS_PATH config CSE_COMPONENTS_PATH

3
src/soc/intel/common/block/cse/Makefile.inc
View File

@ -85,6 +85,9 @@ cbfs-files-y += $(CSE_LITE_ME_RW)
$(CSE_LITE_ME_RW)-file := $(CSE_RW_FILE) $(CSE_LITE_ME_RW)-file := $(CSE_RW_FILE)
$(CSE_LITE_ME_RW)-name := $(CSE_LITE_ME_RW) $(CSE_LITE_ME_RW)-name := $(CSE_LITE_ME_RW)
$(CSE_LITE_ME_RW)-type := raw $(CSE_LITE_ME_RW)-type := raw
ifeq ($(CONFIG_SOC_INTEL_CSE_LITE_COMPRESS_ME_RW),y)
$(CSE_LITE_ME_RW)-compression := LZMA
endif
$(obj)/cse_rw.version: $(obj)/cse_rw.version:
@echo '$(call strip_quotes,$(CONFIG_SOC_INTEL_CSE_RW_VERSION))' > $@ @echo '$(call strip_quotes,$(CONFIG_SOC_INTEL_CSE_RW_VERSION))' > $@