rajamesandJunie
a8b70e88d3
Source tree reorganization: - Move StarForth v3 engine to v3/ (src/, include/, Makefile) - Move kernel to kernel/ (src/, include/, linker/, Makefile) - Create v4/ skeleton for F18-ISA golden model (DECOMPOSITION.md, JUSTIFICATION.md) - Move FABRIC-0..4.md to docs/fabric/ - Move ONTOLOGY.md and ROADMAP.md to docs/ Board infrastructure: - Add boards/ser5/, boards/raspi/, boards/milkv/, boards/zynq7020/ - Each board has board.mk (ISA, CPU flags, boot recipe) and README.md - Root Makefile becomes thin dispatcher: boot_image, all, clean, docs take TARGET - make boot_image TARGET=SER5|RASPI|MILKV builds one GPT/MBR image per board - ZYNQ7020 target exists but stops with clear error (ARMv7 port not built yet) - scripts/mkdiskimage.sh builds disk images for all boards Docs pipeline: - docs/book/ with LaTeX master (main.tex) and Makefile - pandoc converts Markdown to LaTeX at build time - Two Lua filters: table-widths.lua (wide tables wrap), code-breaks.lua (inline code breaks) - make docs builds single PDF (754 pages, 0 missing characters) - make docs TARGET=<board> adds board appendix - build/docs/<book|board>/meta.tex stamps git commit into PDF Bug fixes: - 42 include paths that only worked by accident now use correct relative paths - clang-18 hardcode replaced with configurable CC variable (fixed aarch64 build) - Pi 5: kernel_2712.img linked at 0x80000, .bss zeroed, memory reserved - Doxyfile, .clang-tidy, README.md, Kconfig paths updated Verified: - Hosted v3 build passes 1012 tests, 0 failures - SER5 image boots in QEMU (OVMF), POST passes, K exact (65536 = Q48_ONE) - Milk-V image boots in QEMU (OpenSBI + U-Boot + bootefi), POST passes - make clean TARGET=<board> removes only that board and its ISA objects - make all builds all boards, hosted v3, and docs in one run Co-authored-by: Junie <junie@jetbrains.com>
31 lines
1.6 KiB
Markdown
31 lines
1.6 KiB
Markdown
# Milk-V Mars boot media
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`make boot_image TARGET=MILKV` builds `build/boards/milkv/lithos-milkv.img`: a GPT disk with one
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FAT32 EFI System Partition. Write it to an SD card with `dd`. The partition holds:
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- `EFI/BOOT/BOOTRISCV64.EFI`: the riscv64 monolithic loader, the same one QEMU boots.
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- `startup.nsh`: for a UEFI shell, if one is used.
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- `starforth.cfg`: only present when `KERNEL_ARGS="..."` is given.
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The board's own SPI-flash U-Boot, with OpenSBI underneath, finds the loader through its standard
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`bootefi` scan of the removable-media path. U-Boot passes its devicetree to the loader through the
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EFI configuration table.
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Status: booted in QEMU through the same chain the board uses: OpenSBI, then U-Boot
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`qemu-riscv64_smode`, then `bootefi` from this image's ESP, then the loader and the kernel. POST
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passed, Stadium conservation was exact (resident 43691 + reservoir 21845 = 65536 = `Q48_ONE`), and
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Hestia and Artemis came up. Not yet booted on the Mars itself. The JH7110 peripherals
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(framebuffer, RNG) have only been checked by compiling.
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To repeat the QEMU boot (`qemu-system-riscv64` is in Ubuntu 26.04's `qemu-system-riscv` package;
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OpenSBI and U-Boot come from `opensbi` and `u-boot-qemu`). Use a copy, because the kernel writes
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to its disk:
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```
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cp build/boards/milkv/lithos-milkv.img /tmp/mv.img
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qemu-system-riscv64 -machine virt -cpu rv64 -m 2048 -nographic \
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-bios /usr/lib/riscv64-linux-gnu/opensbi/generic/fw_dynamic.bin \
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-kernel /usr/lib/u-boot/qemu-riscv64_smode/u-boot.bin \
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-drive if=none,format=raw,file=/tmp/mv.img,id=d0 -device virtio-blk-device,drive=d0
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```
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