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db201e33a4
The emenlow machine has been retired with this commit. This does not affect the emenlow-noemgd machine and it is supported as usual. Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
149 lines
4.8 KiB
Plaintext
149 lines
4.8 KiB
Plaintext
This README file contains information on building the meta-emenlow
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BSP layer using any of the supported machine configurations, and
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booting the images contained in the /binary directory.
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The 'eMenlow' platform consists of the Intel Atom Z5xx processor,
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plus the Intel US15W System Controller Hub.
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Further information on the platform supported by this BSP can be
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found here:
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http://www.portwell.com/products/detail.asp?CUSTCHAR1=WEBS-2120
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Information on all Intel® embedded platforms can be found here:
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http://www.intel.com/p/en_US/embedded/hwsw/hardware
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If you're only interested in booting the images in the /binary
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directory of a BSP tarball you've downloaded, there's nothing special
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to do - the appropriate images are already in the /binary directory
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depending on which BSP tarball you downloaded.
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Please see the corresponding sections below for details.
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Yocto Project Compatible
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========================
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This BSP is compatible with the Yocto Project as per the requirements
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listed here:
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https://www.yoctoproject.org/webform/yocto-project-compatible-registration
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Dependencies
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============
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This layer depends on:
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URI: git://git.openembedded.org/bitbake
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branch: master
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URI: git://git.openembedded.org/openembedded-core
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layers: meta
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branch: master
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URI: git://git.yoctoproject.org/meta-intel
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layers: intel
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branch: master
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Patches
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=======
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Please submit any patches against this BSP to the meta-intel mailing list
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(meta-intel@yoctoproject.org) and cc: the maintainer:
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Maintainer: Nitin A Kamble <nitin.a.kamble@intel.com>
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Please see the meta-intel/MAINTAINERS file for more details.
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Table of Contents
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=================
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I. Building the meta-emenlow BSP layer
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II. Booting the images in /binary
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I. Building the meta-emenlow BSP layer
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=======================================
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In order to build an image with BSP support for a given release, you
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need to download the corresponding BSP tarball from the 'Board Support
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Package (BSP) Downloads' page of the Yocto Project website.
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Having done that, and assuming you extracted the BSP tarball contents
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at the top-level of your yocto build tree, you can build an emenlow
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image by adding the location of the meta-emenlow layer to
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bblayers.conf, along with the meta-intel layer itself (to access
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common metadata shared between BSPs) e.g.:
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yocto/meta-intel \
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yocto/meta-intel/meta-emenlow \
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The meta-emenlow layer contains support for emenlow-noemgd machine
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configuration. The previously supported emenlow machine with the
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proprietary EMGD graphics driver has been retired. The 'emenlow-noemgd'
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machine configuration uses the open source 'gma500' kernel DRM driver
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along with the 'modesetting' X driver.
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To enable the layer add the following to the local.conf file:
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MACHINE ?= "emenlow-noemgd"
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You should then be able to build an emenlow image as such:
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$ source oe-init-build-env
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$ bitbake core-image-sato
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At the end of a successful build, you should have a live image that
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you can boot from a USB flash drive (see instructions on how to do
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that below, in the section 'Booting the images from /binary').
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As an alternative to downloading the BSP tarball, you can also work
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directly from the meta-intel git repository. For each BSP in the
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'meta-intel' repository, there are multiple branches, one
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corresponding to each major release starting with 'laverne' (0.90), in
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addition to the latest code which tracks the current master (note that
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not all BSPs are present in every release). Instead of extracting a
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BSP tarball at the top level of your yocto build tree, you can
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equivalently check out the appropriate branch from the meta-intel
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repository at the same location.
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II. Booting the images in /binary
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=================================
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This BSP contains bootable live images, which can be used to directly
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boot Yocto off of a USB flash drive.
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Under Linux, insert a USB flash drive. Assuming the USB flash drive
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takes device /dev/sdf, use dd to copy the live image to it. For
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example:
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# dd if=core-image-sato-emenlow-noemgd.hddimg of=/dev/sdf
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# sync
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# eject /dev/sdf
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This should give you a bootable USB flash device. Insert the device
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into a bootable USB socket on the target, and power on. This should
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result in a system booted to the Sato graphical desktop.
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If you want a terminal, use the arrows at the top of the UI to move to
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different pages of available applications, one of which is named
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'Terminal'. Clicking that should give you a root terminal.
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If you want to ssh into the system, you can use the root terminal to
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ifconfig the IP address and use that to ssh in. The root password is
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empty, so to log in type 'root' for the user name and hit 'Enter' at
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the Password prompt: and you should be in.
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----
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If you find you're getting corrupt images on the USB (it doesn't show
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the syslinux boot: prompt, or the boot: prompt contains strange
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characters), try doing this first:
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# dd if=/dev/zero of=/dev/sdf bs=1M count=512
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