CHANGES: update.
[litex.git] / CHANGES
1 [> 2020.XX, planned for July 2020
2 ---------------------------------
3
4 [> Issues resolved
5 ------------------
6 - Fix flush_cpu_icache on VexRiscv.
7
8 [> Added Features
9 ------------------
10 - Properly integrate Minerva CPU.
11 - Add nMigen dependency.
12 - Pluggable CPUs.
13 - BIOS history, autocomplete.
14 - Improve boards's programmers.
15 - Add Microwatt CPU support (with GHDL-Yosys-plugin support for FOSS toolchains).
16 - Speedup Memtest using an LFSR.
17 - Add LedChaser on boards.
18 - Improve WishboneBridge.
19 - Improve Diamond constraints.
20 - Use InterconnectPointToPoint when 1 master,1 slave and no address translation.
21 - Add CV32E40P CPU support (ex RI5CY).
22 - JTAG UART with uart_name=jtag_uart (validated on Spartan6, 7-Series, Ultrascale(+)).
23 - Add Symbiflow experimental support on Arty.
24 - Add SDCard boot from FAT/exFAT filesystems with FatFs.
25 - Simplify boot with boot.json configuration file.
26
27 [> API changes/Deprecation
28 --------------------------
29 - Add --build --load arguments to targets.
30 - Deprecate soc.interconnect.wishbone.UpConverter (will be rewritten if useful).
31 - Deprecate soc.interconnect.wishbone.CSRBank (Does not seem to be used by anyone).
32 - Move soc.interconnect.wishbone2csr.WB2CSR to soc.interconnect.wishbone.Wishbone2CSR.
33 - Move soc.interconnect.wishbonebridge.WishboneStreamingBridge to soc.cores.uart.Stream2Wishbone.
34 - Rename --gateware-toolchain target parameter to --toolchain.
35
36 [> 2020.04, released April 28th, 2020
37 -------------------------------------
38
39 [> Description
40 --------------
41 First release of LiteX and the ecosystem of cores!
42
43 LiteX is a Migen/MiSoC based Core/SoC builder that provides the infrastructure to easily create
44 Cores/SoCs (with or without CPU).
45
46 The common components of a SoC are provided directly:
47 - Buses and Streams (Wishbone, AXI, Avalon-ST)
48 - Interconnect
49 - Common cores (RAM, ROM, Timer, UART, etc...)
50 - CPU wrappers/integration
51 - etc...
52 And SoC creation capabilities can be greatly extended with the ecosystem of LiteX cores (DRAM,
53 PCIe, Ethernet, SATA, etc...) that can be integrated/simulated/build easily with LiteX.
54
55 It also provides build backends for open-source and vendors toolchains.
56
57 [> Issues resolved
58 ------------------
59 - NA
60
61 [> Added Features
62 ------------------
63 - NA
64
65 [> API changes/Deprecation
66 --------------------------
67 - https://github.com/enjoy-digital/litex/pull/399: Converting LiteX to use Python modules.