Peter Hoyes
9359bc9163
This patch introduces U-Boot into the fvp-baser-aemv8r64 boot flow, providing EFI services. The fvp-baser-aemv8r64 does not have an EL3, so the system starts at S-EL2. For now, U-Boot is running at S-EL2, alongside boot-wrapper. Enable the --enable-keep-el option in boot-wrapper-aarch64 so that it boots the next stage (U-Boot) at S-EL2. Additionally, tell boot-wrapper-aarch64 to bundle U-Boot instead of the kernel. Linux only supports booting from S-EL1 on the fvp-baser-aemv8r64, so U-Boot is configured with CONFIG_SWITCH_TO_EL1, so that booti or bootefi switch to S-EL1 before booting the EFI payload (unless an enviornment variable - armv8_switch_to_el1 - is set to 'n'). Add patches to U-Boot, which: * Add board support for the fvp-baser-aemv8r64 (with a memory map which is inverted from the fvp-base). * Enable the configuration of U-Boot using the device tree passed from boot-wrapper-aarch64. * Enable virtio-net. * Disable setting the exception vectors at S-EL2 so that the PSCI vectors pass through to Linux. * Set up system registers at S-EL2 for Linux. * Configure the S-EL2 MPU for the EFI services. * Allows bootefi to switch to EL1 before booting Linux. Issue-Id: SCM-3871 Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com> Change-Id: I229d14b0717df412c1fe33772230ca779f79b32d Signed-off-by: Jon Mason <jon.mason@arm.com>
Introduction
This repository contains the Arm layers for OpenEmbedded.
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meta-arm
This layer contains general recipes for the Arm architecture, such as firmware, FVPs, and Arm-specific integration.
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meta-arm-autonomy
This layer is the distribution for a reference stack for autonomous systems.
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meta-arm-bsp
This layer contains machines for Arm reference platforms, for example FVP Base, N1SDP, and Juno.
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meta-arm-toolchain
This layer contains recipes for Arm's binary toolchains (GCC and Clang for -A and -M), and a recipe to build Arm's GCC.
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meta-atp
This layer contains recipes for the Adaptive Traffic Generation integration into meta-gem5.
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meta-gem5
This layer contains recipes and machines for gem5, a system-level and processor simulator.
Other Directories
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ci
This directory contains gitlab continuous integration configuration files (KAS yaml files) as well as scripts needed for this
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kas
This directory contains KAS yaml files to describe builds for systems not used in CI
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scripts
This directory contains scripts used in running the CI tests
Contributing
Currently, we only accept patches from the meta-arm mailing list. For general information on how to submit a patch, please read https://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded
E-mail meta-arm@lists.yoctoproject.org with patches created using this process. You can configure git-send-email to automatically use this address for the meta-arm repository with the following git command:
$ git config --local --add sendemail.to meta-arm@lists.yoctoproject.org
Commits and patches added should follow the OpenEmbedded patch guidelines:
https://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines
The component being changed in the shortlog should be prefixed with the layer name (without the meta- prefix), for example:
arm-bsp/trusted-firmware-a: decrease frobbing level
arm-toolchain/gcc: enable foobar v2
Reporting bugs
E-mail meta-arm@lists.yoctoproject.org with the error encountered and the steps to reproduce the issue.
Maintainer(s)
- Jon Mason jon.mason@arm.com
- Ross Burton ross.burton@arm.com