spi: zynq_spi: Add fdt support in driver

[karo-tx-uboot.git] / doc / device-tree-bindings / spi / spi-zynq.txt

diff --git a/doc/device-tree-bindings/spi/spi-zynq.txt b/doc/device-tree-bindings/spi/spi-zynq.txt
index a7c275717b53e7b2bc39c0cabd9c12da31c6cde6..f397a36d68016ea6120962de49ff7d9aece99bb6 100644 (file)
--- a/doc/device-tree-bindings/spi/spi-zynq.txt
+++ b/doc/device-tree-bindings/spi/spi-zynq.txt
@@ -11,6 +11,7 @@ Required properties:
 - clocks               : Clock phandles (see clock bindings for details).
 - clock-names          : List of input clock names - "ref_clk", "pclk"
                          (See clock bindings for details).
+- spi-max-frequency    : Maximum SPI clocking speed of device in Hz
 
 Example:
 
@@ -22,6 +23,7 @@ Example:
                interrupts = <0 26 4>;
                clocks = <&clkc 25>, <&clkc 34>;
                clock-names = "ref_clk", "pclk";
+               spi-max-frequency = <166666700>;
                #address-cells = <1>;
                #size-cells = <0>;
        } ;