Message-ID: <0cb9dcb8-130e-7ad2-1f58-3d2f1bb48a49@quicinc.com>
Date:   Tue, 14 Feb 2023 13:23:28 -0800
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Subject: Re: [PATCH 5/9] dt-bindings: remoteproc: mpss: Document
 QDU1000/QRU1000 mpss devices
Content-Language: en-US
To:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Jassi Brar <jassisinghbrar@gmail.com>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Robert Marko <robimarko@gmail.com>,
        Guru Das Srinagesh <quic_gurus@quicinc.com>
CC:     Konrad Dybcio <konrad.dybcio@linaro.org>,
        Manivannan Sadhasivam <mani@kernel.org>,
        <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <linux-remoteproc@vger.kernel.org>
References: <20230213185218.166520-1-quic_molvera@quicinc.com>
 <20230213185218.166520-6-quic_molvera@quicinc.com>
 <aba45ae9-8558-50c1-e5ad-dd910dacdbb3@linaro.org>
From:   Melody Olvera <quic_molvera@quicinc.com>
In-Reply-To: <aba45ae9-8558-50c1-e5ad-dd910dacdbb3@linaro.org>
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Precedence: bulk


On 2/14/2023 12:28 AM, Krzysztof Kozlowski wrote:
> On 13/02/2023 19:52, Melody Olvera wrote:
>> This documents the compatible for the component used to boot the
>> MPSS on the QDU1000 and QRU1000 SoCs.
>>
>> The QDU1000 and QRU1000 mpss boot process now requires the specification
>> of an RMB register space to complete the handshake needed to start or
>> attach the mpss.
>>
>> Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
>> ---
>>  .../bindings/remoteproc/qcom,qdu1000-pas.yaml | 127 ++++++++++++++++++
>>  1 file changed, 127 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,qdu1000-pas.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,qdu1000-pas.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,qdu1000-pas.yaml
>> new file mode 100644
>> index 000000000000..eb6ade984778
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,qdu1000-pas.yaml
>> @@ -0,0 +1,127 @@
>> +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/remoteproc/qcom,qdu1000-pas.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm QDU1000 Peripheral Authentication Service
>> +
>> +maintainers:
>> +  - Melody Olvera <quic_molvera@quicinc.com>
>> +
>> +description:
>> +  Qualcomm QDU1000 SoC Peripheral Authentication Service loads and boots firmware
>> +  on the Qualcomm DSP Hexagon cores.
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - qcom,qdu1000-mpss-pas
> What about other remote processors? The subject prefix suggests it is
> only for mpss, but filename is different.

Yeah so QDU1000 and QRU1000 only have mpss; there are no other remote processors.
However, it uses the same PAS driver as the other remote processors on other SoCs.
I can rename to Modem Peripheral Authentication Service.

>
>> +
>> +  reg:
>> +    maxItems: 2
>> +
>> +  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:
>> +    $ref: /schemas/types.yaml#/definitions/string-array
>> +    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
>> +      - description: DSM Memory region
>> +
>> +  interrupts:
>> +    minItems: 6
>> +
>> +  interrupt-names:
>> +    minItems: 6
>> +
>> +  interconnects:
>> +    minItems: 1
> You can drop the property. It's coming from qcom,pas-common.yaml

Got it.

>
>> +
>> +  power-domains:
>> +    items:
>> +      - description: CX power domain
>> +      - description: MSS power domain
>> +
>> +  power-domain-names:
>> +    items:
>> +      - const: cx
>> +      - const: mss
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +
>> +allOf:
>> +  - $ref: /schemas/remoteproc/qcom,pas-common.yaml#
>> +
>> +unevaluatedProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/clock/qcom,rpmh.h>
>> +    #include <dt-bindings/interrupt-controller/irq.h>
>> +    #include <dt-bindings/mailbox/qcom-ipcc.h>
>> +
>> +    remoteproc@4080000 {
>> +        compatible = "qcom,qdu1000-mpss-pas";
>> +        reg = <0x4080000 0x4040>,
>> +              <0x4180000 0x1000>;
>> +
>> +        clocks = <&rpmhcc RPMH_CXO_CLK>;
>> +        clock-names = "xo";
>> +
>> +        interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
>> +                              <&smp2p_modem_in 0 IRQ_TYPE_EDGE_RISING>,
>> +                              <&smp2p_modem_in 1 IRQ_TYPE_EDGE_RISING>,
>> +                              <&smp2p_modem_in 2 IRQ_TYPE_EDGE_RISING>,
>> +                              <&smp2p_modem_in 3 IRQ_TYPE_EDGE_RISING>
>> +                              <&smp2p_modem_in 7 IRQ_TYPE_EDGE_RISING>;
>> +        interrupt-names = "wdog", "fatal", "ready", "handover",
>> +                          "stop-ack", "shutdown-ack";
>> +
>> +        memory-region = <&mpss_mem>, <&dtb_mpss_mem>, <&mpss_dsm_mem>;
>> +
>> +        firmware-name = "modem.mdt",
>> +                        "modem_dtb.mdt";
>> +
>> +        power-domains = <&rpmhpd QDU1000_CX>,
>> +                        <&rpmhpd QDU1000_MSS>;
>> +        power-domain-names = "cx", "mss";
>> +
>> +        interconnects = <&mc_virt MASTER_LLCC &mc_virt SLAVE_EBI1>;
>> +
>> +        qcom,qmp = <&aoss_qmp>;
>> +
>> +        qcom,smem-states = <&smp2p_adsp_out 0>;
>> +        qcom,smem-state-names = "stop";
>> +
>> +        glink-edge {
>> +            interrupts-extended = <&ipcc IPCC_CLIENT_MPSS
>> +                                         IPCC_MPROC_SIGNAL_GLINK_QMP
>> +                                         IRQ_TYPE_EDGE_RISING>;
>> +            mboxes = <&ipcc IPCC_CLIENT_MPSS IPCC_MPROC_SIGNAL_GLINK_QMP>;
>> +
>> +            label = "modem";
>> +            qcom,remote-pid = <2>;
>> +
> Drop blank line

Ok.

Thanks,
Melody
>
>> +        };
>> +    };
> Best regards,
> Krzysztof
>