1# Layer Contents 2 3## Supported Machines 4 5* raspberrypi 6* raspberrypi0 7* raspberrypi0-wifi 8* raspberrypi0-2w-64 9* raspberrypi2 10* raspberrypi3 11* raspberrypi3-64 (64 bit kernel & userspace) 12* raspberrypi4 13* raspberrypi4-64 (64 bit kernel & userspace) 14* raspberrypi5 15* raspberrypi-cm (dummy alias for raspberrypi) 16* raspberrypi-cm3 17 18Note: The raspberrypi3 machines include support for Raspberry Pi 3B+. 19 20## Multi-board Machines 21 22This layer generally provides support for machines that are targetting a single 23Raspberry Pi board (or a very few subsets of them). This is so that the build 24infrastructure can tune and tweak the configuration with the flexibility to 25optimise for both runtime performance and disk storage. 26 27For usecases where compatibility of more boards is required, the layer provides 28machines that are tagetting a wider support of Raspberry Pi boards. 29 30### raspberrypi-armv7 31 32This machine targets support for all the ARMv7-based Raspberry Pi boards. It 33will pull in the firmware and deploy the kernel image and kernel modules for 34all the relevant boards. 35 36### raspberrypi-armv8 37 38This machine targets support for all the ARMv8-based Raspberry Pi boards. It 39will pull in the firmware and deploy the kernel image and kernel modules for 40all the relevant boards. 41 42## Images 43 44* rpi-test-image 45 * Image based on core-image-base which includes most of the packages in this 46 layer and some media samples. 47 48For other uses it's recommended to base images on `core-image-minimal` or 49`core-image-base` as appropriate. 50 51## WiFi and Bluetooth Firmware 52 53Be aware that the WiFi and Bluetooth firmware for the supported boards 54is not available in the base version of `linux-firmware` from OE-Core 55(poky). The files are added from Raspbian repositories in this layer's 56bbappends to that recipe. All machines define 57`MACHINE_EXTRA_RRECOMMENDS` to include the required wireless firmware; 58raspberrypi3 supports 3, 3B, and 3B+ and so include multiple firmware 59packages. 60