Khem Raj 6c1c9ff4ee mesa-gl: Enable swrast dri backend for rpi/userland
After mesa switched build system to meson, the logic to generate dri
related artifacts changed too, which means when no dri backend is
enabled then dri drivers and corresponding headers dont get generated
and hence we end up with missing pkgconfig files e.g. dri.pc which
usually will come from full mesa3d package, but in rpi when userland is
used we only build GL pieces of mesa.

This patch therefore enables swrast dri backend when using userland,
which gives us the needed header and .pc files to build packages like
Xorg server, since EGL driver will come from userland, the dri backend
would be unused and hence should not be effective at runtime.

Addresses issue report with https://github.com/agherzan/meta-raspberrypi/pull/773

there is no need to check for graphics stack since mesa-gl is only used
with userland graphics

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Trevor Woerner <twoerner@gmail.com>
2020-12-02 22:10:03 +00:00
2017-05-26 12:16:52 +01:00
2020-01-22 18:09:10 +00:00

meta-raspberrypi

Yocto BSP layer for the Raspberry Pi boards - http://www.raspberrypi.org/.

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Description

This is the general hardware specific BSP overlay for the RaspberryPi device.

More information can be found at: http://www.raspberrypi.org/ (Official Site)

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

  • Distro-less (only with OE-Core).
  • Yoe Disto (Video and Camera Products).
  • Yocto/Poky (main focus of testing).

Dependencies

This layer depends on:

  • URI: git://git.yoctoproject.org/poky

    • branch: master
    • revision: HEAD
  • URI: git://git.openembedded.org/meta-openembedded

    • layers: meta-oe, meta-multimedia, meta-networking, meta-python
    • branch: master
    • revision: HEAD

Quick Start

  1. source poky/oe-init-build-env rpi-build
  2. Add this layer to bblayers.conf and the dependencies above
  3. Set MACHINE in local.conf to one of the supported boards
  4. bitbake core-image-base
  5. Use bmaptool to copy the generated .wic.bz2 file to the SD card
  6. Boot your RPI

Quick Start with kas

  1. Install kas build tool from PyPi (sudo pip3 install kas)
  2. kas build meta-raspberrypi/kas-poky-rpi.yml
  3. Use bmaptool to copy the generated .wic.bz2 file to the SD card
  4. Boot your RPI

To adjust the build configuration with specific options (I2C, SPI, ...), simply add a section as follows:

local_conf_header:
  rpi-specific: |
    ENABLE_I2C = "1"
    RPI_EXTRA_CONFIG = "dtoverlay=pi3-disable-bt"

To configure the machine, you have to update the machine variable. And the same for the distro.

For further information, you can read more at https://kas.readthedocs.io/en/1.0/index.html

Maintainers

  • Andrei Gherzan <andrei at gherzan.ro>
Description
Hardware specific BSP overlay for the Raspberry Pi devices
https://yoctoproject.org/
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