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cubelinux-kernel/Documentation/devicetree/bindings/fpga/lattice-machxo2-spi.txt
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Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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Lattice MachXO2 Slave SPI FPGA Manager
Lattice MachXO2 FPGAs support a method of loading the bitstream over
'slave SPI' interface.
See 'MachXO2ProgrammingandConfigurationUsageGuide.pdf' on www.latticesemi.com
Required properties:
- compatible: should contain "lattice,machxo2-slave-spi"
- reg: spi chip select of the FPGA
Example for full FPGA configuration:
fpga-region0 {
compatible = "fpga-region";
fpga-mgr = <&fpga_mgr_spi>;
#address-cells = <0x1>;
#size-cells = <0x1>;
};
spi1: spi@2000 {
...
fpga_mgr_spi: fpga-mgr@0 {
compatible = "lattice,machxo2-slave-spi";
spi-max-frequency = <8000000>;
reg = <0>;
};
};