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>
18 lines
1005 B
Markdown
18 lines
1005 B
Markdown
# Xilinx Zynq-7020 boot media
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The Zynq-7020's processing system is a dual Cortex-A9: ARMv7-A, 32-bit. It is the host for the
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StarForth v4 mesh (`docs/v4.0.0/JUSTIFICATION.md` §5, §8).
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Boot chain: BootROM, then `BOOT.BIN` (U-Boot SPL with the board's `ps7_init` DDR and clock setup),
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then U-Boot, then LithosAnanke. Everything is read from the SD card's FAT partition.
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Status: no image yet. `make boot_image TARGET=ZYNQ7020` stops with an error, because there is no
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ARMv7 kernel port (`kernel/src/arch/armv7`: entry code, MMU, GIC, private timer). A trial
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compile for Cortex-A9 built 147 of the 151 kernel and engine sources. The four that failed use
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`__int128` or have no ARMv7 branch: `kernel/src/crypto/fe25519.c`,
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`kernel/src/crypto/scalar25519.c`, `kernel/src/hal/hal.c` and
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`v3/src/word_source/mixed_arithmetic_words.c`.
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`BOOT.BIN` depends on the exact board (Zybo Z7-20, PYNQ-Z2, Arty Z7-20, ZedBoard, ...), because
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`ps7_init` holds that board's DDR timing. The board has not been chosen yet.
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