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Kconfig: Add config for creating a second bootblock 

Intel PCH/Southbridges have feature that it is possible
to have the southbridge/PCH look for the bootblock at a 64K or
128K/256K/512K/1MB (in case of newer SoCs) offset instead of
the usual top of flash.
Add configs to create a second bootblock and configure its size.

Change-Id: I4bbd19c35871891b762a0673f840858d972e129e
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/22533
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Rizwan Qureshi 2017-11-16 13:32:29 +05:30 committed by Patrick Georgi
parent a302e7f46b
commit b082670234
2 changed files with 30 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Makefile.inc
View File

@ -956,6 +956,9 @@ $(obj)/fmap.fmap: $(obj)/fmap.fmd $(FMAPTOOL)
echo " FMAP $(FMAPTOOL) -h $(obj)/fmap_config.h $< $@"
$(FMAPTOOL) -h $(obj)/fmap_config.h -R $(obj)/fmap.desc $< $@
ifeq ($(CONFIG_INTEL_ADD_TOP_SWAP_BOOTBLOCK),y)
TS_OPTIONS := -j $(CONFIG_INTEL_TOP_SWAP_BOOTBLOCK_SIZE)
endif
ifneq ($(CONFIG_UPDATE_IMAGE),y)
$(obj)/coreboot.pre: $(objcbfs)/bootblock.bin $$(prebuilt-files) $(CBFSTOOL) $$(cpu_ucode_cbfs_file) $(obj)/fmap.fmap $(obj)/fmap.desc
$(CBFSTOOL) $@.tmp create -M $(obj)/fmap.fmap -r $(shell cat $(obj)/fmap.desc)
@ -964,7 +967,8 @@ ifeq ($(CONFIG_ARCH_X86),y)
-f $(objcbfs)/bootblock.bin \
-n bootblock \
-t bootblock \
-b -$(call file-size,$(objcbfs)/bootblock.bin) $(cbfs-autogen-attributes)
-b -$(call file-size,$(objcbfs)/bootblock.bin) $(cbfs-autogen-attributes) \
$(TS_OPTIONS)
else # ifeq ($(CONFIG_ARCH_X86),y)
$(CBFSTOOL) $@.tmp write -u \
-r BOOTBLOCK \
@ -979,7 +983,7 @@ else # ifeq ($(CONFIG_ARCH_X86),y)
-b -4
rm -f $@.tmp.2
endif # ifeq ($(CONFIG_ARCH_X86),y)
$(CBFSTOOL) $@.tmp add-master-header
$(CBFSTOOL) $@.tmp add-master-header $(TS_OPTIONS)
$(prebuild-files) true
mv $@.tmp $@
else # ifneq ($(CONFIG_UPDATE_IMAGE),y)

24
src/soc/intel/Kconfig
View File

@ -13,3 +13,27 @@ source "src/soc/intel/skylake/Kconfig"
# Load common config
source "src/soc/intel/common/Kconfig"
config INTEL_HAS_TOP_SWAP
bool
help
Set this config if the Intel SoC supports top swap feature
config INTEL_ADD_TOP_SWAP_BOOTBLOCK
bool "Include a Top swap bootblock"
default n
depends on INTEL_HAS_TOP_SWAP
help
Intel PCH/Southbridges have feature that it is possible to have
the southbridge/PCH look for the bootblock at a 64K or
128K/256K/512K/1MB (in case of newer SoCs) offset
instead of the usual top of flash.
Select this to put a 'second' bootblock.
config INTEL_TOP_SWAP_BOOTBLOCK_SIZE
hex "Size of top swap boot block"
depends on INTEL_ADD_TOP_SWAP_BOOTBLOCK
default 0x10000
help
Set this config to a supported topswap size.
Valid sizes: 0x10000 0x20000 0x40000 0x80000 0x100000