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https://github.com/linuxboot/linuxboot
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63 lines
1.6 KiB
Makefile
63 lines
1.6 KiB
Makefile
#
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# Specific targets and things for the OCP Winterfell board
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#
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# This is responsible for extracting the DXE section from the ROM,
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# extracting each of the images from it, and setting the sizes for
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# the different firmware images.
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#
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# Replace just the dxe volume:
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# ( echo u860000 6a0000 ; pv build/winterfell/dxe.vol ) > /dev/ttyACM0
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# 6.9 MB DXE+Linux ROM, uncompressed
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dxe-size := 0x6A0000
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#dxe-compress := 0xF00000
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dxe-path := $(BUILD)/rom/0x00860000
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dxe-files := $(shell awk \
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'/^[0-9A-Fa-f]/ {print "$(dxe-path)/"$$1".ffs"}' \
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boards/$(BOARD)/image-files.txt \
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)
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# The Intel firmware has lots of small pieces.
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# We replace the DXE recovery image and one of the other
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# images with the LinuxBoot one. Potentially we
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# can clean up more space.
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FVS := \
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$(BUILD)/rom/0x00000000.ifd \
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$(BUILD)/rom/0x00010000.bin \
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$(BUILD)/nvram1.vol \
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$(BUILD)/nvram2.vol \
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$(BUILD)/rom/0x00840000.bin \
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$(BUILD)/dxe.vol \
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$(BUILD)/rom/0x00f00000.fv \
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# Replace the DxeCore and SmmCore with our own
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# and add in the Linux kernel / initrd
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$(BUILD)/dxe.vol: \
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$(dxe-files) \
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$(BUILD)/Linux.ffs \
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$(BUILD)/Initrd.ffs \
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#
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# Compact the NVRAM region. this isn't required, but makes for cleaner images.
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#
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nvram1-size := 0x20000
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nvram2-size := 0x20000
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$(BUILD)/nvram1.vol: $(BUILD)/nvram1.ffs
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$(BUILD)/nvram2.vol: $(BUILD)/nvram2.ffs
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NVRAM_GUID = cef5b9a3-476d-497f-9fdc-e98143e0422c
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NVRAM1_FFS = $(BUILD)/rom/0x00800000/$(NVRAM_GUID).ffs
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NVRAM2_FFS = $(BUILD)/rom/0x00820000/$(NVRAM_GUID).ffs
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$(NVRAM1_FFS) $(NVRAM2_FFS): $(BUILD)/$(BOARD).txt
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@true
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$(BUILD)/nvram1.ffs: $(NVRAM1_FFS)
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./bin/nvram-compact < $< > $@
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$(BUILD)/nvram2.ffs: $(NVRAM2_FFS)
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./bin/nvram-compact < $< > $@
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