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.
- 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 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 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 to ensure consistency between RTL and C register definitions.
- Implemented exhaustive checks for offsets, scalar encodings, bit shifts, and enumerations.
- Added for shell and control-CDC unit tests using Icarus and Verilator.
- Created test cases for NPU register and control CDC functionality, verifying successful simulation outputs.
- 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.
- Updated resource_controller_tb.sv to include additional checks for IRQ handling and lifecycle states for GA2D resource.
- Modified soc_irq_topology_tb.sv to accommodate 64-bit IRQ vector handling and updated expectations for IRQ routing.
- Introduced test_ga2d.py for directed verification of GA2D Phase 3 APB4 shell functionality.
- Revised test_ga2d_platform.py to reflect changes in GA2D integration and ensure proper IRQ routing.
- Added test_ga2d_register_parity.py to synchronize GA2D RTL and SDK register constants.
- Updated test_lp_irq.py to reflect changes in IRQ allocation and metadata for GA2D.
- Enhanced test_memory_map.py to verify GA2D MMIO region presence in the memory map.
- Adjusted test_publication_software.py to include GA2D in application results.
- Modified test_soc_topology.py to ensure correct topology generation for GA2D, including IRQ and APB bindings.
- Updated onchip_ram64_tb to increase ID_WIDTH from 6 to 7 and adjusted related write/read tasks.
- Modified resource_controller_tb to accommodate an expanded resource count from 8 to 9, updating related logic signals.
- Enhanced sysctrl_tb to introduce new fault handling logic for data plane faults, including additional fault validation and delivery mechanisms.
- Added tests for clock and reset domains to ensure proper handling of data plane faults and their reset contracts.
- Introduced new test_ga2d_platform.py to verify GA2D Phase 2 functionality, including lifecycle and recovery processes.
- Updated test_soc_topology.py to ensure proper data master policies and validate GA2D integration within the system.
- Enhanced sysctrl.py to ensure the fault master retains the high bit for data plane faults.
- 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.
- Introduced new task in for handling high-performance APU writes with access fault checks.
- Updated to support an expanded resource count, including ownership and IRQ routing for the new APU resource.
- Enhanced to validate IRQ expectations for the newly added APU resource.
- Created for directed verification of APU-P1 APB4 register shell and integrated IRQ ownership topology.
- Added to ensure synchronization between RTL and SDK register ABI.
- Modified to parameterize tests for product modes, improving flexibility in testing.
- Updated to reflect changes in APU memory mapping and ensure correct assertions.
- Enhanced to validate the complete IRQ and resource allocations for the APU.
- Implemented tests for the deterministic baseline JPEG reference model in , covering encoding, decoding, quality scaling, and error handling.
- Created to ensure synchronization between RTL and C register constants for JPEG.
- Updated to reflect changes in the number of APB interfaces and IRQ mappings, ensuring the topology generates correct bindings.
- 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.
- 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 a new USB2 transaction engine testbench to validate the functionality of the USB2 transaction engine.
- Updated clock and reset domain tests to include USB2 ULPI crossings.
- Enhanced memory map tests to verify USB2 base addresses and performance offsets.
- Modified pin map tests to ensure USB2 ULPI pins are correctly generated.
- Updated SOC topology tests to account for USB2 peripherals and IRQ mappings.
- Added static timing analysis constraints for USB2 clock domains.
- Created dedicated USB2 tests for various components including packet RAM, descriptor validation, and transaction engine.
- Implemented a register parity test to ensure ABI consistency between RTL and C header definitions.
- Increased the number of masters in the AXI4 interconnect testbench from 5 to 6.
- Added new testbench for SPI-SD clock functionality (spisd_clock_tb).
- Introduced testbench for SPI-SD command engine (spisd_command_tb).
- Created testbench for SPI-SD CRC calculation (spisd_crc_tb).
- Implemented testbench for SPI-SD data handling (spisd_data_tb).
- Developed wrapper testbench for SPI-SD with APB and training checks (spisd_wrapper_tb).
- Added Python test suite for SPI-SD RTL regressions (test_spisd.py).
- Created a test for verifying register parity between RTL and C header definitions (test_spisd_register_parity.py).
- Introduced a new testbench for the SDIO wrapper () to validate APB interactions.
- Updated to include IRQ handling for SDIO0 and SDIO1.
- Enhanced to account for performance management of SDIO0 and SDIO1.
- Modified memory map tests to include SDIO base addresses and performance wait offsets.
- Updated pin mapping tests to include SDIO1 signals.
- Created a comprehensive suite of SDIO tests () covering various functionalities including CRC, command engine, DMA, and standalone operations.
- Added a new test for verifying SDIO register parity against the RTL definition.
- Adjusted SOC topology tests to reflect the addition of SDIO in the IRQ and APB fabric.
- Introduced to define formal properties for the DMA design, ensuring correct behavior under various conditions.
- Created as a testbench for the DMA register interface, implementing APB and AXI4 protocols to validate register operations.
- Added to verify synchronization between RTL and SDK register constants, ensuring consistency across implementations.
- Introduced burst length handling in the SDRAM Verilator model, allowing for more flexible read/write operations.
- Added new SDRAM-related source files to the project structure, including sdram_pkg.sv and sdram_axi4.sv.
- Updated software makefile to include new SDRAM-related C source files for HAL.
- Enhanced C test suite with new tests for SDRAM timing and functionality, ensuring proper integration with the HAL.
- Improved RTL testbench for SDRAM, adding support for burst writes and reads, and verifying data integrity.
- Updated Python test scripts to reflect changes in SDRAM handling and ensure comprehensive coverage of SDRAM functionality.
- Added checks to ensure register offsets between RTL and HAL definitions match, maintaining consistency across the codebase.
- Updated filelist to include I2S related files.
- Enhanced formal file generation script to support I2S target.
- Introduced I2S formal design and properties for verification.
- Modified formal makefile to include I2S targets and source files.
- Added I2S related source files to software build.
- Updated style audit to include I2S files.
- Implemented I2S helper functions in C tests.
- Created I2S testbench for RTL simulation.
- Added regression test for I2S controller functionality.
- Introduced sysctrl_define.svh to define register offsets and constants for SysCtrl.
- Created sysctrl_if.sv interface for communication with SysCtrl.
- Implemented sysctrl_reg.sv module to handle register read/write operations and state management.
- Developed sysctrl_tb.sv testbench to validate SysCtrl functionality, including lifecycle, fault handling, performance monitoring, and RTC wake status.
- Added Python regression test (test_sysctrl.py) to automate SysCtrl verification using Icarus Verilog.
- Updated formal.mk to include PSRAM in formal verification targets and source files.
- Modified software.mk to include psram_math.c for HAL.
- Enhanced pin_map.json to map GPIO pins for PSRAM control signals.
- Refactored ip_ribp_wrapper.sv to integrate PSRAM interface and remove unused ribp interfaces.
- Updated rtl_style_audit.json to include PSRAM related files.
- Added PSRAM testbench (psram_tb.sv) for integration testing.
- Created test_psram.py to validate PSRAM controller functionality and register offsets.
- Adjusted memory map tests to reflect new PSRAM address space and size.
- Introduced signal in sysctrl interface and module to handle RTC wake events.
- Added RTC wake status register in memory map and updated related tests.
- Integrated RTC wake handling in the APB wrapper and core wrapper.
- Enhanced clock and reset domain configurations to include RTC signals.
- Updated software build configurations to include RTC source files and headers.
- Modified formal verification and testbench files to accommodate RTC wake functionality.
- Ensured proper synchronization and status recording for RTC wake events in the sysctrl module.
- Updated the PS2 interface in the APB wrapper to include RX and TX FIFO depths.
- Replaced the kdb_model with ps2_device_model in the testbench for better PS2 handling.
- Added new PS2 source files and headers for keyboard and mouse functionality.
- Refactored GPIO alternate functions to support PS2 clock and data signals.
- Implemented PS2 decoder tests for keyboard and mouse in the runtime tests.
- Updated the software makefile to include new PS2 source files and headers.
- Modified the topology tests to validate PS2 GPIO assignments.
- Updated to include I2C1 in IRQ bindings.
- Modified to increase IRQ group width and add I2C1 interrupt.
- Enhanced to include I2C formal properties and adjust timeouts.
- Added I2C-related source files to the formal verification flow.
- Updated DMA wrapper in to handle I2C DMA signals.
- Created a new testbench for I2C functionality verification.
- Implemented I2C helper functions in for testing.
- Added I2C tests in to validate controller behavior and recovery.
- Updated existing tests to accommodate changes in DMA and IRQ handling.
- Updated filelist to include new UART source files.
- Enhanced formal file generation script to support UART target.
- Introduced formal verification module and properties for UART.
- Modified makefiles to include UART in formal targets and source files.
- Added UART-related source files to software build.
- Updated top-level wrapper to integrate UART DMA signals.
- Implemented UART testbench for comprehensive testing of functionality.
- Created Python test script for UART V2 register, FIFO, and interrupt tests.
- Added UART helper functions in C test runtime.
- Updated DMA error testbench to handle UART signals.
- Ensured WS2812 DMA testbench accommodates UART signals.
- Updated to include for testing.
- Modified to include GPIO header and added tests for GPIO functionality.
- Created a new testbench for GPIO V2, covering register and pad-control contracts.
- Removed obsolete and its associated test.
- Updated to include GPIO admin base routing.
- Added a new Python test for GPIO V2 register and pad-control contract.
- Removed as its functionality is now covered in .
- Updated memory map tests to ensure GPIO admin base is correctly referenced.
- Adjusted formal filelist generation to reflect changes in GPIO handling.
- Enhanced SOC topology tests to include GPIO interrupt handling.
- Updated filelist to include new timer peripheral files.
- Enhanced formal file generation script to support timer target.
- Created timer formal design and properties for formal verification.
- Modified formal makefile to include timer targets and source files.
- Added timer-related source files to software makefile.
- Updated core and management wrappers to include debug halted signal.
- Implemented timer testbench for RTL simulation.
- Added regression tests for timer functionality in Python.
- Introduced timer helper functions in C tests for validation.
- Replace onewire interface with ws2812 interface in retrosoc module.
- Include ws2812_math.c in C test sources.
- Add ws2812 header in test_runtime.c and implement ws2812 helper tests.
- Update ribp_topology_tb and soc_irq_topology_tb to handle ws2812 interface.
- Create ws2812_dma_tb and ws2812_tb for testing WS2812 DMA and waveform functionality.
- Enhance test_script_tools.py to include ws2812 in formal filelists.
- Modify test_soc_topology.py to ensure proper IRQ mapping for ws2812.
- Introduce test_ws2812.py for WS2812 register, waveform, and streaming regression tests.
- Eliminated the HAVE_DEBUG preprocessor directive and all associated code from the RTL and test files.
- Updated the Emulator class to remove JTAG-related debug signals and configurations.
- Adjusted the pin map and JSON configurations to exclude debug-related entries.
- Modified the management core wrapper to only support the HAZARD3 core, removing references to the PICORV32 core.
- Updated tests to reflect the removal of the HAVE_DEBUG feature, ensuring they no longer check for debug-related conditions.
- Cleaned up various scripts and makefiles to remove dependencies on the HAVE_DEBUG flag, streamlining the build process.
- Removed CORE and IP variables from common.tcl and synth.tcl scripts.
- Updated yosys.mk to exclude CORE and IP from environment variables.
- Modified bus_fault_tb to enhance NMI interface with management and user NMI signals.
- Added user access denial handling in bus_fault_tb.
- Updated pll_ctrl_tb and sysctrl_fault_tb to reflect changes in NMI interface.
- Adjusted test_gpio_user_mux.py to remove IP_MDD definition.
- Enhanced memory map tests to include user extensions and ensure proper generation.
- Updated test_script_tools.py to reflect changes in core management and user extensions.
- Refined topology tests to ensure user APB target is always added.
- Adjusted tech cell configuration tests to use simplified profile paths.
- Improved user extensions tests for scalar bindings and slot validation.
- Introduced for handling QSPI flash memory operations, including command and address handling.
- Added to interface with the C++ flash memory implementation, allowing for read operations via DPI-C.
- Created for the flash memory implementation, supporting initialization, reading, and memory copying.
- Updated to integrate the new QSPI Flash module and connect it with the existing system.
- Refactored file paths in various filelists and scripts to accommodate the new directory structure under .
- Enhanced the Python scripts for generating memory maps and preparing the environment for the new structure.
- Adjusted test scripts to reflect changes in the directory structure and ensure compatibility with the new modules.
- Updated core_wrapper and mgmt_core_wrapper to use new SOC reset and IRQ addresses.
- Removed obsolete mmap_define.svh file and integrated memory map generation into the build process.
- Enhanced ip_nmi_wrapper to handle fault signals and updated NMI interface assignments.
- Added bus fault and sysctrl fault testbenches to validate fault handling mechanisms.
- Improved memory map generation script and added tests for memory map validation and fault responder behavior.
- Updated the default output path in to .
- Introduced a new file to define excluded prefixes, compatibility files, and forbidden calls for embedded C sources.
- Modified to improve compiler flags and source file organization.
- Added scripts for checking C warnings and embedded C compliance, ensuring self-owned sources are validated against the policy.
- Implemented regression tests to capture and report self-owned C compiler warnings during builds.
- Created a new test suite for runtime tests of SDK utilities, ensuring deterministic behavior.
- Enhanced existing test scripts to include checks for C warnings and compliance with the embedded C policy.
maksyuki