xref: /freebsd/sys/contrib/device-tree/Bindings/fpga/lattice-machxo2-spi.txt (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
1Lattice MachXO2 Slave SPI FPGA Manager
2
3Lattice MachXO2 FPGAs support a method of loading the bitstream over
4'slave SPI' interface.
5
6See 'MachXO2ProgrammingandConfigurationUsageGuide.pdf' on www.latticesemi.com
7
8Required properties:
9- compatible: should contain "lattice,machxo2-slave-spi"
10- reg: spi chip select of the FPGA
11
12Example for full FPGA configuration:
13
14	fpga-region0 {
15		compatible = "fpga-region";
16		fpga-mgr = <&fpga_mgr_spi>;
17		#address-cells = <0x1>;
18		#size-cells = <0x1>;
19	};
20
21	spi1: spi@2000 {
22        ...
23
24		fpga_mgr_spi: fpga-mgr@0 {
25			compatible = "lattice,machxo2-slave-spi";
26			spi-max-frequency = <8000000>;
27			reg = <0>;
28		};
29	};
30