On Fri, Jul 24, 2026 at 06:38:47PM +0800, Shawn Guo wrote:
> Add a dedicated binding for the Qualcomm Nord SoC PAS devices: ADSP
> and CDSPs. Nord ADSP uses CX and MX power domains while the CDSPs
> add an NSP domain on top of that.
>
> Signed-off-by: Shawn Guo <[email protected]>
> ---
> .../bindings/remoteproc/qcom,nord-pas.yaml | 167 ++++++++++++++++++
> 1 file changed, 167 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/remoteproc/qcom,nord-pas.yaml
>
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,nord-pas.yaml
> b/Documentation/devicetree/bindings/remoteproc/qcom,nord-pas.yaml
> new file mode 100644
> index 000000000000..c1d60ca6c63c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,nord-pas.yaml
> @@ -0,0 +1,167 @@
> +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/remoteproc/qcom,nord-pas.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Nord SoC Peripheral Authentication Service
> +
> +maintainers:
> + - Shawn Guo <[email protected]>
> +
> +description:
> + Qualcomm Nord SoC Peripheral Authentication Service loads and boots
> firmware
> + on the Qualcomm DSP Hexagon cores.
> +
> +properties:
> + compatible:
> + enum:
> + - qcom,nord-adsp-pas
> + - qcom,nord-cdsp0-pas
> + - qcom,nord-cdsp1-pas
> + - qcom,nord-cdsp2-pas
> + - qcom,nord-cdsp3-pas
> +
> + power-domains:
> + minItems: 2
> + items:
> + - description: CX power domain
> + - description: MX power domain
> + - description: NSP power domain
> +
> + power-domain-names:
> + minItems: 2
> + items:
> + - const: cx
> + - const: mx
> + - const: nsp
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: XO clock
> +
> + clock-names:
> + items:
> + - const: xo
> +
> + qcom,qmp:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description: Reference to the AOSS side-channel message RAM.
> +
> + smd-edge: false
> +
> + firmware-name:
> + items:
> + - description: Firmware name of the Hexagon core
> + - description: Firmware name of the Hexagon Devicetree
> +
> + memory-region:
> + items:
> + - description: Memory region for main Firmware authentication
> + - description: Memory region for Devicetree Firmware authentication
> +
> + interrupts:
> + items:
> + - description: Watchdog interrupt
> + - description: Fatal interrupt
> + - description: Ready interrupt
> + - description: Handover interrupt
> + - description: Stop acknowledge interrupt
> + - description: Shutdown acknowledge interrupt
> +
> + interrupt-names:
> + items:
> + - const: wdog
> + - const: fatal
> + - const: ready
> + - const: handover
> + - const: stop-ack
> + - const: shutdown-ack
> +
> + qcom,smem-states:
> + maxItems: 1
> + description: States used by the AP to signal the Hexagon core
> +
> + qcom,smem-state-names:
> + maxItems: 1
> + description: The names of the state bits used for SMP2P output
> +
> +required:
> + - compatible
> + - reg
> + - memory-region
> +
> +allOf:
> + - $ref: /schemas/remoteproc/qcom,pas-common.yaml#
> + - if:
> + properties:
> + compatible:
> + enum:
> + - qcom,nord-adsp-pas
> + then:
> + properties:
> + power-domains:
> + maxItems: 2
> + power-domain-names:
> + maxItems: 2
Sashiko had a valid comment on this. Since the global power-domains
property defines minItems: 2, this will allow CDSP variants to incorrectly
pass schema validation if they omit the NSP power domain.
I will fix it.
Shawn
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/qcom,rpmh.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/mailbox/qcom-ipcc.h>
> + #include <dt-bindings/power/qcom,rpmhpd.h>
> + #define IPCC_MPROC_ADSP0
> +
> + remoteproc@4c00000 {
> + compatible = "qcom,nord-adsp-pas";
> + reg = <0x04c00000 0x10000>;
> +
> + clocks = <&rpmhcc RPMH_CXO_CLK>;
> + clock-names = "xo";
> +
> + interrupts-extended = <&intc GIC_SPI 159 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 0 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 1 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 2 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 3 IRQ_TYPE_EDGE_RISING>,
> + <&smp2p_adsp_in 7 IRQ_TYPE_EDGE_RISING>;
> + interrupt-names = "wdog",
> + "fatal",
> + "ready",
> + "handover",
> + "stop-ack",
> + "shutdown-ack";
> +
> + memory-region = <&hpass_dsp0_mem>, <&hpass_dsp0_dtb_mem>;
> +
> + firmware-name = "qcom/nord/adsp.mbn",
> + "qcom/nord/adsp_dtb.mbn";
> +
> + power-domains = <&rpmhpd RPMHPD_CX>,
> + <&rpmhpd RPMHPD_MX>;
> + power-domain-names = "cx",
> + "mx";
> +
> + qcom,qmp = <&aoss_qmp>;
> + qcom,smem-states = <&smp2p_adsp_out 0>;
> + qcom,smem-state-names = "stop";
> +
> + glink-edge {
> + interrupts-extended = <&ipcc IPCC_MPROC_ADSP0
> + IPCC_MPROC_SIGNAL_GLINK_QMP
> + IRQ_TYPE_EDGE_RISING>;
> + mboxes = <&ipcc IPCC_MPROC_ADSP0 IPCC_MPROC_SIGNAL_GLINK_QMP>;
> +
> + label = "adsp";
> + qcom,remote-pid = <2>;
> +
> + /* ... */
> + };
> + };
> --
> 2.43.0
>
