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README.md

Freedom

This repository contains the RTL created by SiFive for its Freedom E300 and U500 platforms. The Freedom E310 Arty FPGA Dev Kit implements the Freedom E300 Platform and is designed to be mapped onto an Arty FPGA Evaluation Kit. The Freedom U500 VC707 FPGA Dev Kit implements the Freedom U500 Platform and is designed to be mapped onto a VC707 FPGA Evaluation Kit. Both systems boot autonomously and can be controlled via an external debugger.

Please read the section corresponding to the kit you are interested in for instructions on how to use this repo.

Software Requirement

To compile the bootloaders for both Freedom E300 Arty and U500 VC707 FPGA dev kits, the RISC-V software toolchain must be installed locally and set the $(RISCV) environment variable to point to the location of where the RISC-V toolchains are installed. You can build the toolchain from scratch or download the tools here: https://www.sifive.com/products/tools/

Freedom E300 Arty FPGA Dev Kit

The Freedom E300 Arty FPGA Dev Kit implements a Freedom E300 chip.

How to build

The Makefile corresponding to the Freedom E300 Arty FPGA Dev Kit is Makefile.e300artydevkit and it consists of two main targets:

To execute these targets, you can run the following commands:

sh $ make -f Makefile.e300artydevkit verilog $ make -f Makefile.e300artydevkit mcs

Note: This flow requires vivado 2017.1. Old versions are known to fail.

These will place the files under builds/e300artydevkit/obj.

Note that in order to run the mcs target, you need to have the vivado executable on your PATH.

Bootrom

The default bootrom consists of a program that immediately jumps to address 0x20400000, which is 0x00400000 bytes into the SPI flash memory on the Arty board.

Using the generated MCS Image

For instructions for getting the generated image onto an FPGA and programming it with software using the Freedom E SDK, please see the Freedom E310 Arty FPGA Dev Kit Getting Started Guide.

Freedom U500 VC707 FPGA Dev Kit

The Freedom U500 VC707 FPGA Dev Kit implements the Freedom U500 platform.

How to build

The Makefile corresponding to the Freedom U500 VC707 FPGA Dev Kit is Makefile.u500vc707devkit and it consists of two main targets:

To execute these targets, you can run the following commands:

sh $ make -f Makefile.u500vc707devkit verilog $ make -f Makefile.u500vc707devkit mcs

Note: This flow requires vivado 2016.1. Newer versions are known to fail.

These will place the files under builds/u500vc707devkit/obj.

Note that in order to run the mcs target, you need to have the vivado executable on your PATH.

Bootrom

The default bootrom consists of a bootloader that loads a program off the SD card slot on the VC707 board.

shortlog
2017-11-22 Megan WachsMerge pull request #44 from sifive/bump-sifive-blocks master
2017-11-22 Megan Wachsbump sifive-blocks for GPIO IOF fix
2017-11-03 Megan WachsAdd links to some documents for E300 Arty Dev Kit ...
2017-11-03 Wesley W. TerpstraMerge pull request #40 from sifive/bump
2017-11-03 Wesley W. TerpstraREADME: note the vivado version requirements
2017-11-03 Wesley W. Terpstraunleashed: build quad-core instead
2017-11-03 Wesley W. Terpstrasdboot: support SMP boot
2017-11-03 Wesley W. Terpstrau500: enable FPU; needed by linux
2017-11-03 Wesley W. TerpstraREADME: update location of built files
2017-11-03 Wesley W. Terpstrafreedom: bump submodules to their respective masters
2017-08-20 Shreesha SrinathREADME: Updates to build bootloaders
2017-08-19 Shreesha SrinathUpdates to Freedom SoCs
2016-12-08 Richard XiaAdd variable to control what program gets flashed to... freedome300artydevkit-v1p0p2
2016-12-01 Wesley W. TerpstraREADME: our systems are untethered
2016-12-01 Richard XiaMerge pull request #6 from sifive/remove-consts-vh
2016-11-30 Richard XiaAlso remove unused .prm file from Makefile.
...
tags
4 years ago freedome300artydevkit-v1p0p2
heads
3 years ago shakti_iclass
3 years ago bump-repos
3 years ago master
3 years ago no-pcie