On Sun, Jan 22, 2017 at 01:22:19PM +0100, Linus Walleij wrote:
> This adds the top level SoC bindings for Cortina systems Gemini
> platforms.
>
> Cc: Janos Laube <janos....@gmail.com>
> Cc: Paulius Zaleckas <paulius.zalec...@gmail.com>
> Cc: Hans Ulli Kroll <ulli.kr...@googlemail.com>
> Cc: Florian Fainelli <f.faine...@gmail.com>
> Cc: devicet...@vger.kernel.org
> Signed-off-by: Linus Walleij <linus.wall...@linaro.org>
> ---
> Documentation/devicetree/bindings/arm/gemini.txt | 58
> ++++++++++++++++++++++++
> 1 file changed, 58 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/arm/gemini.txt
>
> diff --git a/Documentation/devicetree/bindings/arm/gemini.txt
> b/Documentation/devicetree/bindings/arm/gemini.txt
> new file mode 100644
> index 000000000000..28ce7db0cfd3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/gemini.txt
> @@ -0,0 +1,58 @@
> +Cortina systems Gemini platforms
> +
> +The gemini SoC is an ARMv4 SoC from Cortina systems used for NAS
> +and similar usecases.
> +
> +Required properties (in root node):
> + compatible = "cortina,gemini";
> +
> +Required nodes:
> +
> +- syscon: the root node must have a system controller node pointing to the
> + global control registers, with the compatible string
> + "cortina,gemini-syscon", "syscon";
> +
> +- timer: the root node must have a timer node pointing to the SoC timer
> + block, with the compatible string "cortina,gemini-timer"
> + See: clocksource/cortina,gemini-timer.txt
> +
> +- intcon: the root node must have an interrupt controller node pointing to
intcon is just a source label and not meaningful for the binding.
> + the SoC interrupt controller block, with the compatible string
> + "cortina,gemini-interrupt-controller"
> + See interrupt-controller/cortina,gemini-interrupt-controller.txt
> +
> +Example:
> +
> +/ {
> + interrupt-parent = <&intcon>;
> +
> + syscon: syscon@40000000 {
This chip has no internal bus? Put all these nodes under a bus.
> + compatible = "cortina,gemini-syscon", "syscon";
> + reg = <0x40000000 0x1000>;
> + };
> +
> + timer@43000000 {
> + compatible = "cortina,gemini-timer";
> + reg = <0x43000000 0x1000>;
> + interrupt-parent = <&intcon>;
> + interrupts = <14 IRQ_TYPE_EDGE_RISING>, /* Timer 1 */
> + <15 IRQ_TYPE_EDGE_RISING>, /* Timer 2 */
> + <16 IRQ_TYPE_EDGE_RISING>; /* Timer 3 */
> + syscon = <&syscon>;
> + };
> +
> + uart0: serial@42000000 {
> + compatible = "ns16550a";
> + reg = <0x42000000 0x100>;
> + clock-frequency = <48000000>;
> + interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
> + reg-shift = <2>;
> + };
> +
> + intcon: interrupt-controller@48000000 {
> + compatible = "cortina,gemini-interrupt-controller";
> + reg = <0x48000000 0x1000>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + };
> +};
> --
> 2.9.3
>
> --
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