On Wed 17 Aug 10:27 PDT 2016, Bjorn Andersson wrote:
> This document defines the binding for a component that loads firmware
> and control the life cycle of the Qualcomm ADSP core.
>
> Signed-off-by: Bjorn Andersson <[email protected]>
> ---
> .../devicetree/bindings/remoteproc/qcom,adsp.txt | 69
> ++++++++++++++++++++++
> 1 file changed, 69 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt
>
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt
> b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt
> new file mode 100644
> index 000000000000..077d9b6b9cd0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.txt
> @@ -0,0 +1,69 @@
> +Qualcomm ADSP Peripheral Image Loader
> +
> +This document defines the binding for a component that loads and boots
> firmware
> +on the Qualcomm ADSP core.
> +
> +- compatible:
> + Usage: required
> + Value type: <string>
> + Definition: must be one of:
> + "qcom,adsp-pil"
This won't fly, as I moved past 8974 and 8996 to 8064 I found a few new
details that makes this slightly off, and the 8660 ADSP resources are
way off.
So it's probably better to throw in a platform identifier in the
compatible.
Regards,
Bjorn
> +
> +- interrupts-extended:
> + Usage: required
> + Value type: <prop-encoded-array>
> + Definition: must list the watchdog, fatal IRQs ready, handover and
> + stop-ack IRQs
> +
> +- interrupt-names:
> + Usage: required
> + Value type: <stringlist>
> + Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack"
> +
> +- cx-supply:
> + Usage: required
> + Value type: <phandle>
> + Definition: reference to the regulator to be held on behalf of the
> + booting of the Hexagon core
> +
> +- memory-region:
> + Usage: required
> + Value type: <phandle>
> + Definition: reference to the reserved-memory for the ADSP
> +
> +- qcom,smem-states:
> + Usage: required
> + Value type: <phandle>
> + Definition: reference to the smem state for requesting the ADSP to
> + shut down
> +
> +- qcom,smem-state-names:
> + Usage: required
> + Value type: <stringlist>
> + Definition: must be "stop"
> +
> += EXAMPLE
> +The following example describes the resources needed to boot control the
> +ADSP, as it is found on MSM8974 boards.
> +
> + adsp {
> + compatible = "qcom,adsp-pil";
> +
> + interrupts-extended = <&intc 0 162 1>,
> + <&adsp_smp2p_in 0 0>,
> + <&adsp_smp2p_in 1 0>,
> + <&adsp_smp2p_in 2 0>,
> + <&adsp_smp2p_in 3 0>;
> + interrupt-names = "wdog",
> + "fatal",
> + "ready",
> + "handover",
> + "stop-ack";
> +
> + cx-supply = <&pm8841_s2>;
> +
> + memory-region = <&adsp_region>;
> +
> + qcom,smem-states = <&adsp_smp2p_out 0>;
> + qcom,smem-state-names = "stop";
> + };
> --
> 2.5.0
>
