From: Alan Tull <[email protected]> Add bindings documentation for Altera SOCFPGA bridges: * fpga2sdram * fpga2hps * hps2fpga * lwhps2fpga
Signed-off-by: Alan Tull <[email protected]> Signed-off-by: Matthew Gerlach <[email protected]> Signed-off-by: Dinh Nguyen <[email protected]> --- v2: separate into 2 documents for the 2 drivers v12: bump version to line up with simple-fpga-bus version remove Linux specific notes such as references to sysfs move non-DT specific documentation elsewhere remove bindings that would have been used to pass configuration clean up formatting v13: Remove 'label' property Change property from init-val to bridge-enable Fix email address --- .../bindings/fpga/altera-fpga2sdram-bridge.txt | 15 +++++++++++ .../bindings/fpga/altera-hps2fpga-bridge.txt | 31 ++++++++++++++++++++++ 2 files changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt create mode 100644 Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt diff --git a/Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt b/Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt new file mode 100644 index 0000000..81e2f06 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt @@ -0,0 +1,15 @@ +Altera FPGA To SDRAM Bridge Driver + +Required properties: +- compatible : Should contain "altr,socfpga-fpga2sdram-bridge" + +Optional properties: +- bridge-enable : 0 if driver should disable bridge at startup + 1 if driver should enable bridge at startup + Default is to leave bridge in current state. + +Example: + fpga2sdram_br: fpgabridge@3 { + compatible = "altr,socfpga-fpga2sdram-bridge"; + bridge-enable = <0>; + }; diff --git a/Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt b/Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt new file mode 100644 index 0000000..67c28b0 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt @@ -0,0 +1,31 @@ +Altera FPGA/HPS Bridge Driver + +Required properties: +- compatible : Should contain one of: + "altr,socfpga-hps2fpga-bridge", + "altr,socfpga-lwhps2fpga-bridge", or + "altr,socfpga-fpga2hps-bridge" +- clocks : Clocks used by this module. + +Optional properties: +- bridge-enable : 0 if driver should disable bridge at startup. + 1 if driver should enable bridge at startup. + Default is to leave bridge in its current state. + +Example: + hps_fpgabridge0: fpgabridge@0 { + compatible = "altr,socfpga-hps2fpga-bridge"; + clocks = <&l4_main_clk>; + bridge-enable = <1>; + }; + + hps_fpgabridge1: fpgabridge@1 { + compatible = "altr,socfpga-lwhps2fpga-bridge"; + clocks = <&l4_main_clk>; + bridge-enable = <0>; + }; + + hps_fpgabridge2: fpgabridge@2 { + compatible = "altr,socfpga-fpga2hps-bridge"; + clocks = <&l4_main_clk>; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
