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Build updates - make uboot image known size and allow file output #108

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Build updates - make uboot image known size and allow file output #108

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8721bc6
make uImage partition a known size
bjdooks-ct May 7, 2025
228c52f
add flash and format for an file on disk
bjdooks-ct May 7, 2025
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13 changes: 12 additions & 1 deletion Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -133,13 +133,24 @@ SDDEVICE_PART1 = $(shell lsblk $(SDDEVICE) -no PATH | head -2 | tail -1)
SDDEVICE_PART2 = $(shell lsblk $(SDDEVICE) -no PATH | head -3 | tail -1)
# Always flash uImage at 512M, easier for u-boot boot command
UIMAGE_SECTORSTART := 512M
UIMAGE_SECTOREND := 544M
flash-sdcard: format-sd
dd if=$(RISCV)/fw_payload.bin of=$(SDDEVICE_PART1) status=progress oflag=sync bs=1M
dd if=$(RISCV)/uImage of=$(SDDEVICE_PART2) status=progress oflag=sync bs=1M

format-sd: $(SDDEVICE)
@test -n "$(SDDEVICE)" || (echo 'SDDEVICE must be set, Ex: make flash-sdcard SDDEVICE=/dev/sdc' && exit 1)
sgdisk --clear -g --new=1:$(FWPAYLOAD_SECTORSTART):$(FWPAYLOAD_SECTOREND) --new=2:$(UIMAGE_SECTORSTART):0 --typecode=1:3000 --typecode=2:8300 $(SDDEVICE)
sgdisk --clear -g --new=1:$(FWPAYLOAD_SECTORSTART):$(FWPAYLOAD_SECTOREND) --new=2:$(UIMAGE_SECTORSTART):${UIMAGE_SECTOREND} --typecode=1:3000 --typecode=2:8300 $(SDDEVICE)

# flash-file and format-file are basically the same as the sdcard ones but aum to use a file
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# flash-file and format-file are basically the same as the sdcard ones but aum to use a file
# flash-file and format-file are basically the same as the sdcard ones but aim to use a file


flash-file: format-file
dd if=$(RISCV)/fw_payload.bin of=$(IMGFILE) seek=${FWPAYLOAD_SECTORSTART} status=progress conv=notrunc bs=512
dd if=$(RISCV)/uImage of=$(IMGFILE) seek=$(UIMAGE_SECTORSTART) status=progress conv=notrunc bs=1

format-file:
@test -n "$(IMGFILE)" || (echo 'IMGFILE must be set, Ex: make format-file IMGFILE=output.img' && exit 1)
sgdisk --clear -g --new=1:$(FWPAYLOAD_SECTORSTART):$(FWPAYLOAD_SECTOREND) --new=2:$(UIMAGE_SECTORSTART):${UIMAGE_SECTOREND} --typecode=1:3000 --typecode=2:8300 $(IMGFILE)

# specific recipes
gcc: $(CC)
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