meta-riscv/README.md

# meta-riscv
RISC-V Architecture Layer for OpenEmbedded/Yocto

[![license](https://img.shields.io/github/license/mashape/apistatus.svg)](https://github.com/riscv/meta-riscv/blob/kraj/master/COPYRIGHT)
[![Build Status](https://travis-ci.org/riscv/meta-riscv.svg?branch=master)](https://travis-ci.org/riscv/meta-riscv)

## Description

This is the general hardware specific BSP overlay for the RISC-V based devices.

More information can be found at: <https://riscv.org/> (Official Site)

The core BSP part of meta-riscv should work with different
OpenEmbedded/Yocto distributions and layer stacks, such as:

* Distro-less (only with OE-Core).
* Angstrom.
* Yocto/Poky (main focus of testing).

## Dependencies

This layer depends on:

* URI: git://github.com/openembedded/openembedded-core
  * branch: master
  * revision: HEAD
* URI: git://github.com/openembedded/bitbake
  * branch: master
  * revision: HEAD

## Quick Start

Note: You only need this if you do not have an existing Yocto Project build environment.

Make sure to [install the `repo` command by Google](https://source.android.com/setup/downloading#installing-repo) first. 

## Create workspace
```shell
mkdir riscv-yocto
repo init -u git://github.com/riscv/meta-riscv  -b master -m tools/manifests/riscv-yocto.xml
repo sync
repo start work --all
```
## Setup Build Environment
```shell
. ./meta-riscv/setup.sh
```
## Build Image
```shell
bitbake core-image-full-cmdline
```
## Run in QEMU
```shell
runqemu nographic
```

## Running wic.gz image on hardware

The output of the build will be a ```<image>.wic.gz``` file. You can write this file to an sd card using:

```shell
$ zcat <image>-<machine>.wic.gz | sudo dd of=/dev/sdX bs=4M iflag=fullblock
oflag=direct conv=fsync status=progress
```

## Maintainer(s)

* Khem Raj `<raj dot khem at gmail.com>`