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Implemented

NOR flash command FSM (CFI query)

Priority 0 - Memory System

$1,750 / $1,750fully funded
Done$1,750 / $1,750 - 100%
As a firmware developer, I want vemu's parallel-NOR command FSMs (AMD 29F040 + Intel CFI) to stay accurate, tested and documented, so that I can keep booting from and storing UEFI variables in emulated NOR flash.

Why it matters

Boot from (and store UEFI vars in) parallel NOR

Summary

AMD 29F040 unlock + Intel CFI query/program/erase state machines

Scope of work

Already implemented. Harden, broaden coverage, add tests and documentation for NOR flash command FSM (CFI query). What it is: AMD 29F040 unlock + Intel CFI query/program/erase state machines. Why it matters: Boot from (and store UEFI vars in) parallel NOR.

Current state

Status: Fully implemented. Notes / evidence: AMD 29F040 FSM (vemu-snes BSX) + full Intel CFI PFlashCFI01 with a populated CFI query table (vemu-soc-arm/src/pflash_cfi.rs) that boots EDK2; SoC serial flash still opcode-only.

Blocked by 1

Fund these first - this work can't be completed until they ship.

  • Done
Unblocks 1

Funding this also clears the way for the work below.

Activity log

  1. Feature defined and added to the roadmap

  2. Funding goal set to $1,750

  3. Implementation status: Implemented

  4. Delivered - counted as fully funded