GRLIB GPL 2025.2 released

General - GRLIB SoC
1

The development team is pleased to announce the release of GRLIB GPL 2025.2-b4298, which is now available for download from:

https://download.gaisler.com/products/GRLIB/bin/grlib-gpl-2025.2-b4298.tar.gz

Bitfile and netlist packages are available via:

The changelog is here:

http://download.gaisler.com/products/GRLIB/doc/Changelog.txt

and is also reproduced below.

Some of the highlights are:

  • NOEL-V: new features and fixes including
    • Added shlcofideleg and smcdeleg extension
    • Added support for Svnapot extension and Sv48
    • The double-trap extension (smdbltr and ssdbltrp) has been updated version 1.0
  • APBUART: support for break characters in both transmission and reception
  • Design systests migrated to BCC2 to remove existing dependency on BCC1
  • Minor fixes and updates for the following IPs:
    • LEON5 fixes in DTCM and LDSTUB/LDSTUBA opcode check
    • GRDMAC2
    • AXI2AHB
    • GRGPIO

Updated example bitstreams for LEON5 and NOEL-V are available for download from:

If you find any any reproducible bugs or issues please don’t hesitate to post in the community.

----------------------- Release 2025.2-b4298 ---------------------------

2025-06-30 NOEL-V updates:

  • Update interrupt port definition (new record type)
  • Prevent H-extension to be enabled for RV32 (currently not supported)
  • MC standard configuration has been updated to increase L1 to 4-way and remove double-precision floating-point (only supporting F extension)
  • The double-trap extension (smdbltr and ssdbltrp) have been updated version 1.0
  • Update to CSR handling (illegal checks, and exceptions)
  • Added shlcofideleg and smcdeleg extension
  • Added SVADU extension
  • PLIC now supports more then 31 interrupt sources
  • Custom FEATURE CSR updated (bits has been redefined)
  • Added support for Svnapot extension and Sv48
  • Update illegal checks for CBO instructions
  • APLIC: base_ppn field was not shifted 12 bits to the left to calculate the IMSIC base address.
  • G-stage access fault was raised instead of page fault for some cases
  • Fixed issue with PMA/PMP check during page-walk
  • Fix to not update m/htinst on shadowstack push/pop exceptions
  • Fixed incorrect fault for CFI landing pad faults
  • Executing ssamoswap in machine mode was not handled correctly
  • Update Smstateen extension to incorporate the bits p1p13 & C.
  • Modify write behavior of bits in hstateen/sstateen, if mstateen.bit is 0 then hstateen.bit/sstateen.bit is no longer writeable and previous bits are preserved.
  • Update envcfg to incorporate read-only behavior for bits not set in higher privilege mode envcfg. Example) if menvcfg.sse = 0 => RO (s/h)envcfg.sse. Previous bits preserved.
  • Update CBO and ssamoswap exception behavior, these instructions could previously throw a virtual instruction exception even if its menvcfg bit was 0.

2025-06-25 TECHMAP: Add UltraScale/UltraScale-Plus mapping for DDR_OREG

2025-06-24 AHB2AXIB: new generic to support AMBA address widths of more than 32 bits (not compatible yet with PnP scanning).

2025-06-17 APBUART: Added break character support

  • Increased APBUART revision to 2
  • Updated the core to support transmission and detection of break characters within a configurable range of 10-16 zeroes. Break operation is managed via the control register of the apb bus.
  • Enabled break handling in loop-back operation
  • Added a capability register that reports the values for certain RTL instantiation generics, including FIFO size and flow
  • The debug bit in the control register is now read-only. Read/write access for debug functionality has been relocated to the FIFO debug control register.

2025-06-16 GRGPIO: Added set and clear register support to facilitate atomic accesses to selected registers.

2025-06-10 BCC: BCC1 to BCC2 migration

  • Affects systest in designs directory

2025-06-09 LEON5: Fix issue on LDSTUB/LDSTUBA opcode check

2025-05-23 LEON5: DTCM Fixes

  • Fix an issue where ASI accesses where triggering unwanted dtcmhit.

2025-04-16 AXI2AHB: fix simultaneous read and write accesses

2025-04-03 GRDMAC2: Incorrect calculation of the burst_chop_mask generic value in generic_bm instantiation is fixed. generic_bm_ahb instantiation in the grdmac2 has the default value 1024 for burst_chop_mask generic.