Implement SPI-P1 from docs/ip/spi.md with a PCLK master, registered APB
responses, packed 8x32 TX/RX FIFOs, finite quotas and retained-session
abort/recovery. Add the handwritten SVH/C register mirror and private
source, credit and GPIO qualification interfaces.
Add independent pin timing and data checks, malformed-waveform negatives,
FIFO stall/resume and phase-safe abort cases. Provide isolated lint,
simulation, compositional formal, synthesis, netlist and observational STA
flows with source-bound artifacts and tool-component fingerprints.
Validation on the reviewed worktree: 2085 pytest tests passed and one
optional pypdf test skipped; both RTL simulators, fresh depth-192 BMC and
cover, and ICS55/IHP130 block synthesis and netlist simulation passed.
Formatting, style/readiness, Ruff and regression dry-runs passed.
SPI remains outside product filelists with DMA capability disabled.
SPI-P2/P3 integration, full-product regression closure and physical/IO
qualification remain pending; no phase acceptance or policy change.
Add an isolated SAFE24 QVGA capture, CPU statistics and SDIO save/readback
image with passive transaction observers. Keep ordinary images, production
RTL, public interfaces and dependency versions unchanged.
Retain matched binaries and source-bound stage evidence, distinguish
software comparisons from architectural measurements, and reject invalid
terminal results or incompatible resume inputs. Count SDIO descriptors and
status writebacks separately from pixel payload.
Validation on the final worktree includes 2031 passed / 1 skipped Pytest
tests, C format/policy/host checks, and directed observer tests on Icarus
and Verilator. Selected ICS55 and IHP130 SAFE24 campaigns and compact
backend checks pass; negative STA and warning observations are retained.
Complete P10 acceptance remains pending final regression and human review.
Specification: docs/ip/tiny-soc.md, TINY-R2-P10.
Remove one final LF from four Make files to satisfy the existing mbake
1.4.6 configuration. Preserve all other bytes and keep the independent
P10 implementation out of this formatting commit.
Final-worktree validation confirms identical configuration and command
expansion for five firmware variants, including the Mini lint dry-run.
Format, software policy and host checks pass. The existing editorconfig
newline discrepancy remains a separate policy issue.
Connect DVP to Tiny DMA2/request 11, IRQ15 and the camera pad/reset lifecycle.
Harden shared capture CDC, frame statistics, per-row size validation and HAL
cleanup while preserving the Mini DMA3 binding and existing register ABI.
Add deterministic capture/recovery firmware, source-bound evidence tooling,
focused RTL/host tests and compact netlist acceptance. Preserve SAFE24,
128 KiB main SRAM, private Crypto storage and the locked dependencies.
Retained validation: focused RTL, host/policy checks, Mini firmware, and
ICS55/IHP130 RECOVERY, QVGA, synthesis and boot/DVP netlist checks pass.
Full-system VGA remains historical; long full Icarus and broad regressions
remain deferred. Global publication/format gaps and negative observational
STA are retained, not reported as passing qualification.
Specification: docs/ip/tiny-soc.md, TINY-R2-P9.
Evidence: docs/ip/tiny-soc-verification.md.
Integrate the Tiny RCU, normalized REF24 control, external-input profiles,
single PLL backend, SYS/MEM/PCLK clocks, CPU-only WFI gating, peripheral
lifecycle control and retained debug behavior. Keep CPU and all 32 main
SRAM macros on SYS and the six private Crypto macros on PCLK.
Add the handwritten RCU register/HAL contract, RS_EBUSY, bounded SDK
operations and focused firmware. Preserve shared-IP defaults and the
ICS55/PLL SAFE24 boot and explicit IHP130/no-PLL compatibility profiles.
Use APB/AXI domain bridges and source-owned response holders to preserve
backpressured responses, complete aborted bursts and prevent stale replay.
Verify production DMA source-reset drain and common XPI endpoint reset
with extracted integration bindings and an independent scoreboard.
Add source-bound macro/clock audits, SAFE24 observational STA constraints
and commercial-adapter host checks. No P8 functionality or operating-point
qualification is included. See TINY-R2-P7 in docs/ip/tiny-soc.md.
Validation: 54 P7 directed tests pass, including both simulators, ten
source-reset ratio runs and two expected-negative drain mutations.
RTL format/style, clock/reset inventory, Ruff and both Tiny PDK PR dry-runs
pass. Retained 06-00 synthesis and strict netlist boots pass for both PDKs;
STA remains negative and observational. Source comparison confirms only
the follow-up tests changed after that backend campaign.
Evidence: build/ics55-tiny-2026-10-14-06-00-ff4b5cef6eb5/meta/
tiny-r2-p7-source-reset/summary.json. Earlier firmware, HAL and compatibility
results and the non-clean full-suite attempt retain their original
attribution. Full Icarus firmware is deferred to final Tiny qualification;
this commit does not constitute human phase acceptance or physical signoff.
Integrate RNG, CRC, WS2812, Crypto, I2S master and the SDIO private AXI owner on SAFE24. Preserve the 128 KiB main SRAM and six private Crypto macros, add product-specific DMA assignments and reject unsupported SDK operations.
Correct APB read strobes, I2S receive assembly and SDIO command timing, backpressure and descriptor retirement. Add pin-level workloads, source-bound evidence checks and publication/commercial consumer compatibility.
Validation of the final P6 worktree: 1726 pytest tests passed with one optional pypdf skip (exit 0, 4021.61 seconds; terminal session 36439). Both PDKs passed both RTL simulators, netlist boot and 38-macro binding checks. Shared formal, Mini compatibility and software/source quality gates passed.
Evidence remains attributed to the retained dirty-worktree snapshots based on b3b30a72cd under build/ics55-tiny-2026-10-12-11-50-2eb98c0e1fae/meta/tiny-r2-p6/. Timing is negative and warning observations are not promoted. This commit does not accept P6, qualify physical operation or enable P7.
- Implemented tests for WS2812 DMA sessions and refill functionality in .
- Added a new RTL testbench for WS2812 refill functionality in .
- Enhanced AXI4 data crossbar testbench to diagnose MMIO boundaries for the Mini DMA.
- Created a new Python test suite for Tiny R2 P3 to validate firmware warnings and layout placements.
- Updated existing WS2812 tests to parameterize and check for DMA backpressure integration.
- Updated to include support for the ICS55 PDK, allowing for conditional source inputs and configuration checks.
- Added new test cases for the ICS55 platform, including PLL backend and GPIO readback functionality.
- Modified existing tests to accommodate changes in configuration and source input handling.
- Introduced new parameters in the testbench for better configurability.
- Ensured compatibility checks for the IHP130 and ICS55 PDKs in the feasibility script.
- Enhanced the publication tests to validate hardware changes more robustly.
- Updated fault reference documentation to clarify Linux termination behavior and NPU-P6 requirements.
- Enhanced Linux runtime section with emphasis on platform setup and kernel handoff processes.
- Revised overview section to include detailed descriptions of NPU capabilities and memory configurations.
- Improved product use documentation to specify Linux rootfs behavior and acceptance checkpoints.
- Clarified reset summary to differentiate between Linux and smoke/NPU-P6 acceptance processes.
- Updated software section to reflect changes in Linux image loading and readiness protocols.
- Modified build scripts to support RV64 architecture and ensure proper ELF requirements.
- Enhanced NPU compiler to support cycle counting for RV64 and RV32 architectures.
- Added tests to validate new configurations and ensure compliance with updated publication contracts.
- Updated mailbox purpose tests to reflect new write order and sequence handling.
- Added tests to ensure Linux-ready values match LP contract and constants match Linux helper.
- Introduced tests to verify that offset changes do not hide stale Linux helpers.
- Enhanced environment tests to report current locked launcher and runtime versions.
- Added checks for SBT launcher presence in environment labels.
- Improved full diagram tests to validate storage geometry and RSA vector configurations.
- Expanded register tests to ensure crypto interrupt registers publish all events and lifecycle annotations preserve security boundaries.
- Modified script tools tests to include Vexii generation validation and updated workflow assertions.
- Introduced to create pad-aware timing constraints for the Tiny IHP130 chip flow.
- Added to create a checksummed delivery archive for the Tiny LibreLane implementation.
- Created for synthesis-only header of the locked IHP SRAM macro physical views.
- Implemented to limit OpenSTA report enumeration for path counts.
- Updated to include power pad definitions.
- Enhanced to handle power pad counts and validation.
- Added tests for Tiny flow and pin map validation, including power pad overrides and constraints.
- Added build_hp_rtthread.py for building the RT-Thread kernel with RV64 support.
- Updated build_hp_smoke.py to target RV64 architecture and modified output filenames.
- Modified generate_vexiiriscv.py to reflect RV64 configuration and memory management.
- Created hp_tools.py for shared utilities related to RV64 builds.
- Enhanced package_hp_boot.py to package RV64 workloads and updated versioning.
- Implemented run_hp_sim.py for executing and validating HP workloads with specific markers.
- Developed setup_hp_rtthread.py for installing RT-Thread source and environment setup.
- Updated GenerateRetroSocHp.scala to generate RV64 application cores.
- Enhanced tests for HP boot bundles, platform specifications, and tool utilities to accommodate RV64 changes.
- Adjusted test cases to validate new workload types and ensure compatibility with RV64 architecture.
- Updated test paths in to point to the new directory structure for crypto files.
- Introduced to validate firmware identity and reject stale firmware based on source changes and simulation logs.
- Enhanced to include additional memory status and control registers, ensuring alignment with RTL definitions.
- Updated paths in test files to reflect new directory structure for RTL and script files.
- Changed references from rtl/mini to rtl/ip and scripts/rtl where applicable.
- Added a new test file for Tiny product isolation, ensuring independent ABI and bus acceptance.
- Enhanced tests for memory map generation and protocol contracts for Tiny architecture.
- Ensured that all tests are aligned with the latest directory structure and naming conventions.
- Introduced for independent mathematical operations and RSA fixtures.
- Implemented for testing DMA channels with AES ECB and memory interactions.
- Created to validate RSA-2048 operations and Montgomery reduction.
- Developed for testing AES and SHA vector compliance.
- Added to validate image packing, integer root calculations, and inventory checks.
- Ensured robust error handling and validation in tests to catch data corruption and recursive hierarchy issues.
- Introduced for deterministic corpus framing, CRC checks, and regression evidence for NPU-P6.
- Added to validate NPU-P6 reference execution.
- Created a new RTL model for gate-level NPU transactions.
- Updated to instantiate and streamline the testbench.
- Enhanced with capability checks and added NPU-P6 reference contract tests.
- Modified to include in the source list and refactor rejection logic.
- Updated README.md to document new test scripts and their purposes.
- Introduced differential tests for the APU-P7 frontend profile-1 BAM to ensure consistency with ROM and generator outputs.
- Implemented concurrent decode and continuous KWS smoke tests for APU-P7 to validate system stability under load.
- Added accuracy qualification tests for APU-P7 to verify through-hardware performance against expected results.
- Created contention tests for APU-P8 to assess USB2/SDIO0/APU Gateway A interactions.
- Developed quiesced loader admission tests for APU-P8 to ensure proper handling of DMA operations.
- Added post-fault visibility tests for APU-P8 HP interconnect to confirm fault handling capabilities.
- Enhanced register parity tests to include ABI digest verification for consistency across implementations.
- Updated publication register tests to reflect changes in capability constants for P5 and P7 profiles.
- Removed unsupported fault handling from and replaced it with a test for average pooling execution.
- Updated the test for unsupported placements to validate average pooling and depthwise convolution placements.
- Introduced new tests for softmax functionality in , including parameter validation and edge cases.
- Added qualification tests to ensure rejection of common-mode numerical errors and incomplete runs in .
- Enhanced RTL tests to cover memory downsizing and kernel burst capabilities in and .
- Adjusted boot status assertions in to reflect updated expected values.
- Added validation checks for GA2D soft reset and error handling in .
- Improved resource controller tests in to cover IRQ routing and ownership scenarios.
- Updated performance log tests in to reflect changes in GA2D features and formats.
- Introduced a new netlist transaction test for GA2D in to ensure synthesized block functionality.
- Modified publication software tests in to account for new GA2D stages.
- Adjusted script tools tests in for updated configuration values.
- Added print statements for better traceability in GA2D reference campaign tests.
- Introduced to validate KWS and VWW locked model graphs against expected configurations, including operator sequences, tensor properties, and model integrity checks.
- Added to cover numerical profiles and validate arithmetic operations, including convolution, depthwise convolution, fully connected layers, and various tensor operations.
- Created to ensure proper setup and validation of NPU-P0 reference flow, including dataset integrity and model hash consistency.
- Implemented error handling tests for malformed buffers and model mutations to ensure robustness.
- Updated resource_controller_tb.sv to verify resource STATUS bit layout after HP handoff.
- Modified test_ga2d.py to reflect changes for GA2D Phase 4, including memory map generation and source file handling.
- Introduced new test_ga2d_dma.py for independent FILL/COPY reference-model coverage.
- Updated test_ga2d_platform.py to check for the activation of the private AXI64 master and IRQ routing.
- Adjusted test_ga2d_register_parity.py to validate new scalar encodings for Phase 4.
- Enhanced test_hp_boot_bundle.py to ensure HP boot uses the private GA2D mailbox and resource lifecycle.
- Updated test_hp_platform.py to verify GA2D lifecycle markers and cache handshake budget.
- Modified test_performance_log.py to include GA2D workload and configuration facts in performance logs.
- Adjusted test_publication_retrieval.py and test_publication_software.py to reflect changes in GA2D stages.
- Updated test_script_tools.py to ensure GA2D formal filelists are correctly scoped.
- Refactored test_soc_topology.py to validate the private master policy and active shell in GA2D Phase 4.
- Implemented the KWS engine in the RTL and added necessary components including KWS SRAM client and model loader.
- Enhanced the APU ring scheduler testbench to validate KWS descriptors.
- Introduced new Python tests for KWS functionality, including model import validation, inference checks, and error handling for mutated models.
- Updated existing tests to include KWS components and ensure proper integration within the APU architecture.
- Refactored code for clarity and consistency, including adjustments to signal handling and memory management in test cases.
- Added new tests for FLAC encoding and decoding, including handling of rice parameters and partial LPC tail.
- Introduced WAV PCM encoding tests to ensure correct behavior across various configurations.
- Updated test cases to validate the handling of malformed FLAC files and metadata structures.
- Enhanced the APU register tests to include expanded P5 profile capabilities and ensure accurate register descriptions.
- Improved assertions for manifest checks in the APU release tests to validate ABI and instruction counts.
- Refactored existing tests for clarity and maintainability, ensuring they align with the latest APU specifications.
- Modified the capability register value in apu_reg_tb.sv to 0x01bd.
- Simplified rejected write checks for the COMMAND register in apu_reg_tb.sv.
- Added backend build ID input to the ring scheduler testbench.
- Updated test cases in test_apu.py to include new codec transport and controller files.
- Created new test file test_apu_codec_transport.py for APU-P5 transport assembler and parser tests.
- Added codec profile and dependency tests in test_apu_codecs.py.
- Enhanced register parity tests to include P5 primitive mask.
- Improved script tools tests for file download functionality and dependency helpers.
- Updated axi4_async_bridge_tb.sv to include unilateral reset handling in the test.
- Enhanced axi4_target_guard_tb.sv with a new task for read beat normalization and additional read tests.
- Introduced hp_axi4_mux3_rr_tb.sv to test round-robin arbitration for multiple AXI4 interfaces.
- Expanded test_apu.py to include tests for APU stream router, DMA, ring scheduler, and integrated DMA/ring/backend functionality.
- Added new test cases for APU-P2 Gateway A round-robin fairness.
- Updated test_clock_reset_domains.py to include APU data crossing.
- Enhanced test_script_tools.py to scope formal filelists for APU and Gateway A.
- Introduced to validate AXI4 interface for 64-bit on-chip SRAM.
- Added to test resource controller functionality including ownership, IRQ handling, and cache handshake.
- Updated to include resource controller interface.
- Enhanced to cover additional IRQ scenarios.
- Added new tests in for AXI4 target guard timeout and isolation.
- Updated to reflect changes in the high-performance profile.
- Modified to verify on-chip SRAM bank configurations.
- Added for directed verification of resource controller.
- Updated to check SDRAM mapped window coverage.
- Enhanced to ensure correct IRQ mappings and APB target generation.
- Implemented tests for AXI4 async bridge functionality, including transfer and warm flush scenarios.
- Added tests for AXI4 data crossbar to validate concurrent outstanding requests and ACL handling.
- Introduced clock frequency monitor tests to ensure detection of clock stop and restart events.
- Developed tests for extension DMA master to verify copy operations, tail strobe behavior, and timeout handling.
- Created tests for HP lifecycle controller to validate drain, flush, and forced reset functionalities.
- Updated existing test scripts to include new RTL components and ensure proper simulation configurations.
- Added interface to and implemented error handling for register writes.
- Introduced a new test for AXI4 address gate functionality in .
- Updated clock and reset domain assertions in to reflect new domain names.
- Modified expected outputs in to include new clock domains.
- Adjusted chip configuration assertions in to account for additional power pads.
- Enhanced memory map tests in with new definitions and includes.
- Updated pin mapping tests in to include new reference clock pads.
- Improved script tools tests in to ensure correct validation of extension bindings.
- Refined system control tests in to include new clock control interface.
- Updated USB2 packet RAM tests in to include new SRAM definitions.
- Enhanced user extensions tests in to validate new product extension configurations.
- Adjusted user IP register parity tests to use legacy extensions.
- Updated Yosys synthesis recipe tests to reflect changes in STA period calculations.
- Introduced target in Makefile to run fast-flash HP Linux userspace acceptance tests with a 7200-second simulation time limit.
- Updated documentation to describe the new fast-flash model and its usage in simulations.
- Implemented Verilator-specific XPI core and fast flash model to handle slot-0 read operations with improved performance.
- Added new tests for the XPI fast flash model to verify protocol compliance and error handling.
- Enhanced existing tests to ensure proper integration of fast-flash features in the HP Linux simulation flow.
- Added TCD head and count registers to DMA definition and register files.
- Introduced CRC expected and result registers for enhanced error checking.
- Updated DMA version to 2.0 to reflect new features.
- Modified DMA testbench to validate new TCD and CRC functionalities.
- Enhanced README and filelists to include new dependencies and configurations.
- Updated formal verification and runtime tests to accommodate new DMA features.
- Updated axi4_interconnect_tb to include an additional master and issue high-priority access tests.
- Introduced hp_mailbox_tb for testing the HP mailbox functionality, including register and doorbell operations.
- Added plic_tb to validate PLIC priority, claim, and completion mechanisms.
- Enhanced pll_ctrl_tb to initialize additional system control signals.
- Updated soc_irq_topology_tb to account for new IRQ sources and validate IRQ signal behavior.
- Improved sysctrl_tb to include tests for HP lifecycle control and status registers.
- Added tests for HP boot bundle layout, CRC, and payload validation.
- Introduced test_hp_mailbox.py for RTL regression testing of the HP mailbox.
- Added test_hp_platform.py to validate HP platform configuration and generated-source boundaries.
- Enhanced test_librelane_flow.py to ensure correct signal placement in chip configuration.
- Added performance log tests to validate LP and HP coremark ratios.
- Updated test_soc_topology.py to reflect changes in IRQ and peripheral mappings.
- Introduced a new ECC directory containing scripts and Makefile for the padless ICS55 core hardening flow.
- Updated the main Makefile to include the new ECC Makefile and added relevant help commands.
- Added dependencies for the ECC CLI in the dependencies.lock.json file.
- Created README documentation for the ECC flow detailing usage and requirements.
- Implemented various scripts for configuration generation, validation, output checking, and packaging of ECC results.
- Added unit tests to validate the ECC configuration and flow behavior.
- Introduced to handle the preparation of the SKY130 OpenRAM SRAM views.
- Updated to download and prepare the SRAM archive during PDK setup.
- Enhanced OpenSTA and Yosys configurations to accommodate SRAM macro integration.
- Added Verilog simulation models for GF180 and SKY130 SRAM macros.
- Implemented tests for SRAM setup and validation, ensuring correct integration and functionality.
- Updated various Makefiles and scripts to support SRAM size and macro configurations.
- Updated filelist to include sg13g2_udp.v for IHP130.
- Modified sdram_axi4.sv to initialize read and write control signals.
- Enhanced clock and reset domain configuration to include jtag_trst_n_i_pad.
- Updated iverilog.mk to support IHP130 in tech-cell-test.
- Enhanced pin_map generation to include power pads for IHP130.
- Updated tc_io modules to handle power pins for IHP130.
- Added timing contract generation in package.py for commercial flow.
- Enhanced test cases to validate new IHP130 features and configurations.
- Added new tests for LibreLane flow specific to IHP130.
maksyuki