cores-swerv-el2/configs
Joseph Rahmeh ebfb8abf88 Branch 1.3 2020-11-17 11:14:35 -08:00
..
README.md Branch 1.3 2020-11-17 11:14:35 -08:00
swerv.config Branch 1.3 2020-11-17 10:25:18 -08:00
swerv_config_gen.py Explicitly use python3 everywhere 2020-09-24 16:18:27 +02:00

README.md

SweRV RISC-V EL2 core from Western Digital

Configuration

Contents

Name Description
swerv.config Configuration script for SweRV-EL2
swerv_config_gen.py Python wrapper to run swerv.config, used by SweRVolf

This script will generate a consistent set of defines/#defines/parameters needed for the design and testbench.
A perl hash (perl_configs.pl) and a JSON format for SweRV-iss are also generated. This set of include files :

./snapshots/<target>
├── common_defines.vh                       # `defines for testbench
├── defines.h                               # #defines for C/assembly headers
├── el2_param.vh                            # Actual Design parameters
├── el2_pdef.vh                             # Parameter structure definition
├── pd_defines.vh                           # `defines for physical design
├── perl_configs.pl                         # Perl %configs hash for scripting
├── pic_map_auto.h                          # PIC memory map based on configure size
├── whisper.json                            # JSON file for swerv-iss
└── link.ld                                 # Default linker file for tests

While the defines may be modified by hand, it is recommended that this script be used to generate a consistent set.

Targets

There are 4 predefined target configurations: default, default_ahb, typical_pd and high_perf that can be selected via the -target=name option to swerv.config.

Target Description
default Default configuration. AXI4 bus interface.
default_ahb Default configuration, AHB-Lite bus interface
typical_pd No ICCM, AXI4 bus interface
high_perf Large BTB/BHT, AXI4 interface

swerv.config may be edited to add additional target configurations, or new configurations may be created via the command line -set or -unset options.

Run $RV_ROOT/configs/swerv.config -h for options and settable parameters.