135 lines
5.5 KiB
Plaintext
135 lines
5.5 KiB
Plaintext
[> 2020.12, released on December 30th 2020
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------------------------------------------
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[> Issues resolved
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------------------
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- fix SDCard writes.
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- fix crt0 .data initialize on SERV/Minerva.
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- fix Zynq7000 AXI HP Slave integration.
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[> Added Features
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------------------
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- Wishbone2CSR: Add registered version and use it on system with SDRAM.
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- litex_json2dts: Add Mor1kx DTS generation support.
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- Build: Add initial Radiant support for NX FPGA family.
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- SoC: Allow ROM to be optionally writable (for contents overwrite over UARTBone/Etherbone).
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- LiteSDCard: Improve BIOS support.
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- UARTBone: Add clock domain support.
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- Clocking: Uniformize reset on iCE40PLL/ECP5PLL.
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- LiteDRAM: Improve calibration and add BIOS debug commands.
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- Clocking: Add initial Ultrascale+ support.
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- Sim: Allow dynamic enable/disable of tracing.
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- BIOS: Improve memtest and report.
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- BIOS: Rename/reorganize commands.
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- litex_server: Simplify usage with PCIe and add debug parameter.
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- LitePCIe: Add Ultrascale(+) support up to Gen3 X16.
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- LiteSATA: Add BIOS/Boot integration.
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- Add litex_cli to provides common RemoteClient functions: get identifier, dump regs, etc...
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- LiteDRAM: Simplify BIST integration.
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- Toolchains/Programmers: Improve checks/error reporting.
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- BIOS: add leds command.
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- SoC: Do a full reset of the SoC on reboot (not only the CPU).
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- Etherbone: Improve efficiency/performance.
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- LiteDRAM: Improve DDR4/DDR3 calibration.
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- Build: Add initial Oxide support for NX FPGA family.
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- Clock/RAM: Reorganize for better modularity.
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- SPI-OPI: Various improvements for Betrusted.
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- litex_json2dts: Improvements to use it with mor1kx and VexRiscv-SMP.
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- Microwatt: Add IRQ support.
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- BIOS: Add i2c_scan command.
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- Builder: Simplify Documentation generation with --doc args on targets.
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- CSR: Add documentation to EventManager registers.
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- BIOS: Allow disabling timestamp for reproducible builds.
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- Symbiflow: Remove workarounds on targets.
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- litex_server: Simplify use on PCIe, allow direct CommXY use in scripts to bypass litex_server.
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- Zynq7000: Improve PS7 configuration support (now supporting .xci/preset/dict)
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- CV32E40P: Improve OBI efficiency.
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- litex_term: Improve upload speed with CRC check enabled, deprecate --no-crc (no longer useful).
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- BIOS: Add mem_list command to list available memory and use mem_xy commands on them.
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- litex_term: Add Crossover and JTAG_UART support.
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- Software: Add minimal bare metal demo app.
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- UART: Add Crossover+Bridge support.
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- VexRiscv-SMP: Integrate AES support.
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- LitePCIe: Allow AXI mastering from FPGA (AXI-Lite and Full).
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- mor1kx: Add standard+fpu and linux+fpu variants.
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[> API changes/Deprecation
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--------------------------
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- BIOS: commands have been renamed/reorganized.
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- LiteDRAM: rdcmdphase/wrcmdphase no longer exposed.
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- CSR: change default csr_data_width from 8 to 32.
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[> 2020.08, released on August 7th 2020
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---------------------------------------
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[> Issues resolved
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------------------
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- Fix flush_cpu_icache on VexRiscv.
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- Fix `.data` section placed in rom (#566)
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[> Added Features
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------------------
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- Properly integrate Minerva CPU.
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- Add nMigen dependency.
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- Pluggable CPUs.
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- BIOS history, autocomplete.
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- Improve boards's programmers.
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- Add Microwatt CPU support (with GHDL-Yosys-plugin support for FOSS toolchains).
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- Speedup Memtest using an LFSR.
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- Add LedChaser on boards.
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- Improve WishboneBridge.
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- Improve Diamond constraints.
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- Use InterconnectPointToPoint when 1 master,1 slave and no address translation.
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- Add CV32E40P CPU support (ex RI5CY).
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- JTAG UART with uart_name=jtag_uart (validated on Spartan6, 7-Series, Ultrascale(+)).
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- Add Symbiflow experimental support on Arty.
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- Add SDCard (SPI and SD modes) boot from FAT/exFAT filesystems with FatFs.
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- Simplify boot with boot.json configuration file.
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- Revert to a single crt0 (avoid ctr/xip variants).
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- Add otional DMA bus for Cache Coherency on CPU(s) with DMA/Cache Coherency interface.
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- Add AXI-Lite bus standard support.
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- Add VexRiscv SMP CPU support.
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[> API changes/Deprecation
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--------------------------
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- Add --build --load arguments to targets.
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- Deprecate soc.interconnect.wishbone.UpConverter (will be rewritten if useful).
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- Deprecate soc.interconnect.wishbone.CSRBank (Does not seem to be used by anyone).
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- Move soc.interconnect.wishbone2csr.WB2CSR to soc.interconnect.wishbone.Wishbone2CSR.
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- Move soc.interconnect.wishbonebridge.WishboneStreamingBridge to soc.cores.uart.Stream2Wishbone.
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- Rename --gateware-toolchain target parameter to --toolchain.
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- Integrate Zynq's PS7 as a regular CPU (zynq7000) and deprecate SoCZynq.
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[> 2020.04, released on April 28th, 2020
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----------------------------------------
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[> Description
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--------------
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First release of LiteX and the ecosystem of cores!
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LiteX is a Migen/MiSoC based Core/SoC builder that provides the infrastructure to easily create
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Cores/SoCs (with or without CPU).
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The common components of a SoC are provided directly:
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- Buses and Streams (Wishbone, AXI, Avalon-ST)
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- Interconnect
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- Common cores (RAM, ROM, Timer, UART, etc...)
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- CPU wrappers/integration
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- etc...
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And SoC creation capabilities can be greatly extended with the ecosystem of LiteX cores (DRAM,
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PCIe, Ethernet, SATA, etc...) that can be integrated/simulated/build easily with LiteX.
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It also provides build backends for open-source and vendors toolchains.
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[> Issues resolved
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------------------
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- NA
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[> Added Features
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------------------
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- NA
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[> API changes/Deprecation
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--------------------------
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- https://github.com/enjoy-digital/litex/pull/399: Converting LiteX to use Python modules.
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