diff options
Diffstat (limited to 'Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt')
-rw-r--r-- | Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt deleted file mode 100644 index cfa4ed42b62f..000000000000 --- a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt +++ /dev/null @@ -1,43 +0,0 @@ -Xilinx Slave Serial SPI FPGA Manager - -Xilinx Spartan-6 FPGAs support a method of loading the bitstream over -what is referred to as "slave serial" interface. -The slave serial link is not technically SPI, and might require extra -circuits in order to play nicely with other SPI slaves on the same bus. - -See https://www.xilinx.com/support/documentation/user_guides/ug380.pdf - -Required properties: -- compatible: should contain "xlnx,fpga-slave-serial" -- reg: spi chip select of the FPGA -- prog_b-gpios: config pin (referred to as PROGRAM_B in the manual) -- done-gpios: config status pin (referred to as DONE in the manual) - -Example for full FPGA configuration: - - fpga-region0 { - compatible = "fpga-region"; - fpga-mgr = <&fpga_mgr_spi>; - #address-cells = <0x1>; - #size-cells = <0x1>; - }; - - spi1: spi@10680 { - compatible = "marvell,armada-xp-spi", "marvell,orion-spi"; - pinctrl-0 = <&spi0_pins>; - pinctrl-names = "default"; - #address-cells = <1>; - #size-cells = <0>; - cell-index = <1>; - interrupts = <92>; - clocks = <&coreclk 0>; - - fpga_mgr_spi: fpga-mgr@0 { - compatible = "xlnx,fpga-slave-serial"; - spi-max-frequency = <60000000>; - spi-cpha; - reg = <0>; - done-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>; - prog_b-gpios = <&gpio0 29 GPIO_ACTIVE_LOW>; - }; - }; |