1 Lattice MachXO2 Slave SPI FPGA Manager 1 Lattice MachXO2 Slave SPI FPGA Manager
2 2
3 Lattice MachXO2 FPGAs support a method of load 3 Lattice MachXO2 FPGAs support a method of loading the bitstream over
4 'slave SPI' interface. 4 'slave SPI' interface.
5 5
6 See 'MachXO2ProgrammingandConfigurationUsageGu 6 See 'MachXO2ProgrammingandConfigurationUsageGuide.pdf' on www.latticesemi.com
7 7
8 Required properties: 8 Required properties:
9 - compatible: should contain "lattice,machxo2- 9 - compatible: should contain "lattice,machxo2-slave-spi"
10 - reg: spi chip select of the FPGA 10 - reg: spi chip select of the FPGA
11 11
12 Example for full FPGA configuration: 12 Example for full FPGA configuration:
13 13
14 fpga-region0 { 14 fpga-region0 {
15 compatible = "fpga-region"; 15 compatible = "fpga-region";
16 fpga-mgr = <&fpga_mgr_spi>; 16 fpga-mgr = <&fpga_mgr_spi>;
17 #address-cells = <0x1>; 17 #address-cells = <0x1>;
18 #size-cells = <0x1>; 18 #size-cells = <0x1>;
19 }; 19 };
20 20
21 spi1: spi@2000 { 21 spi1: spi@2000 {
22 ... 22 ...
23 23
24 fpga_mgr_spi: fpga-mgr@0 { 24 fpga_mgr_spi: fpga-mgr@0 {
25 compatible = "lattice, 25 compatible = "lattice,machxo2-slave-spi";
26 spi-max-frequency = <8 26 spi-max-frequency = <8000000>;
27 reg = <0>; 27 reg = <0>;
28 }; 28 };
29 }; 29 };
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