GNU Linux-libre 4.19.264-gnu1
[releases.git] / Documentation / devicetree / bindings / fpga / lattice-machxo2-spi.txt
1 Lattice MachXO2 Slave SPI FPGA Manager
2
3 Lattice MachXO2 FPGAs support a method of loading the bitstream over
4 'slave SPI' interface.
5
6 See 'MachXO2ProgrammingandConfigurationUsageGuide.pdf' on www.latticesemi.com
7
8 Required properties:
9 - compatible: should contain "lattice,machxo2-slave-spi"
10 - reg: spi chip select of the FPGA
11
12 Example 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         };