overlays: mcp2515: Add support for spi3 and spi5#7255
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pelwell merged 1 commit intoraspberrypi:rpi-6.12.yfrom Feb 21, 2026
Merged
overlays: mcp2515: Add support for spi3 and spi5#7255pelwell merged 1 commit intoraspberrypi:rpi-6.12.yfrom
pelwell merged 1 commit intoraspberrypi:rpi-6.12.yfrom
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Extend the mcp2515 overlay to support the spi3 and spi5 buses available on newer Raspberry Pi hardware. This adds the required dormant fragments to disable the default spidev drivers, updates the __overrides__ routing logic, and updates the README accordingly. Signed-off-by: Kevin Beichler <k.beichler@gmx.com>
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This PR extends the
mcp2515overlay to support thespi3andspi5buses, which are available on newer Raspberry Pi models like the Pi 4 and Pi 5.Previously, the overlay only supported SPI0, SPI1, and SPI2. This update:
__dormant__fragments to disable the default user-spacespidevdrivers on buses 3 and 5.__overrides__routing logic so the MCP2515 can be easily targeted viaconfig.txt(e.g.,dtoverlay=mcp2515,spi3-0,interrupt=25).Tested and verified working on a Raspberry Pi 5.