| Message ID | 20160712193645.9098-3-atull@opensource.altera.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Jul 12, 2016 at 02:36:41PM -0500, Alan Tull wrote: > Add bindings documentation for Altera SOCFPGA bridges: > * fpga2sdram > * fpga2hps > * hps2fpga > * lwhps2fpga > > Signed-off-by: Alan Tull <atull@opensource.altera.com> > Signed-off-by: Matthew Gerlach <mgerlach@altera.com> > Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> > --- > 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 > v14: Add resets > Change order of bridges to put lw bridge (controlling bridge) first > v15: No change in this patch for v15 of this patch set > v16: Added regs property, cleaned up unit addresses > v17: No change to this patch in v17 of patch set > v18: Changed to not need reset-names property > node names as fpga-bridge@... > labels as fpga_bridge > Add address of fpgaportrst to give and address for f2s bridge > --- > .../bindings/fpga/altera-fpga2sdram-bridge.txt | 16 +++++++++ > .../bindings/fpga/altera-hps2fpga-bridge.txt | 39 ++++++++++++++++++++++ > 2 files changed, 55 insertions(+) > create mode 100644 Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt > create mode 100644 Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt Acked-by: Rob Herring <robh@kernel.org>
On Mon, 1 Aug 2016, Rob Herring wrote: > On Tue, Jul 12, 2016 at 02:36:41PM -0500, Alan Tull wrote: > > Add bindings documentation for Altera SOCFPGA bridges: > > * fpga2sdram > > * fpga2hps > > * hps2fpga > > * lwhps2fpga > > > > Signed-off-by: Alan Tull <atull@opensource.altera.com> > > Signed-off-by: Matthew Gerlach <mgerlach@altera.com> > > Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> > > --- > > 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 > > v14: Add resets > > Change order of bridges to put lw bridge (controlling bridge) first > > v15: No change in this patch for v15 of this patch set > > v16: Added regs property, cleaned up unit addresses > > v17: No change to this patch in v17 of patch set > > v18: Changed to not need reset-names property > > node names as fpga-bridge@... > > labels as fpga_bridge > > Add address of fpgaportrst to give and address for f2s bridge > > --- > > .../bindings/fpga/altera-fpga2sdram-bridge.txt | 16 +++++++++ > > .../bindings/fpga/altera-hps2fpga-bridge.txt | 39 ++++++++++++++++++++++ > > 2 files changed, 55 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt > > create mode 100644 Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt > > Acked-by: Rob Herring <robh@kernel.org> > Thanks! Alan
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..817a8d4 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/altera-fpga2sdram-bridge.txt @@ -0,0 +1,16 @@ +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: + fpga_bridge3: fpga-bridge@ffc25080 { + compatible = "altr,socfpga-fpga2sdram-bridge"; + reg = <0xffc25080 0x4>; + 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..6406f93 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/altera-hps2fpga-bridge.txt @@ -0,0 +1,39 @@ +Altera FPGA/HPS Bridge Driver + +Required properties: +- regs : base address and size for AXI bridge module +- compatible : Should contain one of: + "altr,socfpga-lwhps2fpga-bridge", + "altr,socfpga-hps2fpga-bridge", or + "altr,socfpga-fpga2hps-bridge" +- resets : Phandle and reset specifier for this bridge's reset +- 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: + fpga_bridge0: fpga-bridge@ff400000 { + compatible = "altr,socfpga-lwhps2fpga-bridge"; + reg = <0xff400000 0x100000>; + resets = <&rst LWHPS2FPGA_RESET>; + clocks = <&l4_main_clk>; + bridge-enable = <0>; + }; + + fpga_bridge1: fpga-bridge@ff500000 { + compatible = "altr,socfpga-hps2fpga-bridge"; + reg = <0xff500000 0x10000>; + resets = <&rst HPS2FPGA_RESET>; + clocks = <&l4_main_clk>; + bridge-enable = <1>; + }; + + fpga_bridge2: fpga-bridge@ff600000 { + compatible = "altr,socfpga-fpga2hps-bridge"; + reg = <0xff600000 0x100000>; + resets = <&rst FPGA2HPS_RESET>; + clocks = <&l4_main_clk>; + };