linux-kernel - Re: [PATCH v7] arm64: dts: qcom: sc7280: Add WPSS remoteproc node

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Date:   Mon, 29 Nov 2021 15:25:20 +0530
From:   Sibi Sankar <sibis@...eaurora.org>
To:     Rakesh Pillai <pillair@...eaurora.org>
Cc:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        swboyd@...omium.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        mpubbise@...eaurora.org, kuabhs@...omium.org,
        pillair=codeaurora.org@...eaurora.org
Subject: Re: [PATCH v7] arm64: dts: qcom: sc7280: Add WPSS remoteproc node

Hey Rakesh,

On 2021-11-19 10:54, Rakesh Pillai wrote:
> Add the WPSS remoteproc node in dts for
> PIL loading.
> 
> Reviewed-by: Stephen Boyd <swboyd@...omium.org>
> Signed-off-by: Rakesh Pillai <pillair@...eaurora.org>
> ---
> Changes from v6:
> - Swap the oder of two properties in wpss_mem reserved memory
> 
> Changes from v5:
> - Update the clock names
> ---
>  arch/arm64/boot/dts/qcom/sc7280-idp.dts |  4 +++
>  arch/arm64/boot/dts/qcom/sc7280.dtsi    | 56 
> +++++++++++++++++++++++++++++++++
>  2 files changed, 60 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
> b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
> index 9b991ba..ddab150 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
> @@ -80,3 +80,7 @@
>  		qcom,pre-scaling = <1 1>;
>  	};
>  };
> +
> +&remoteproc_wpss {
> +	status = "okay";
> +};
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index 365a2e0..dd93f13 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -134,6 +134,11 @@
>  			no-map;
>  		};
> 
> +		wpss_mem: memory@...00000 {
> +			reg = <0x0 0x9ae00000 0x0 0x1900000>;
> +			no-map;
> +		};
> +

wpss_mem is already part of idp
board dts. We no longer include
PIL reserved memory regions in
the base SoC dtsi since the size
varies across boards.

>  		rmtfs_mem: memory@...00000 {
>  			compatible = "qcom,rmtfs-mem";
>  			reg = <0x0 0x9c900000 0x0 0x280000>;
> @@ -2598,6 +2603,57 @@
>  			status = "disabled";
>  		};
> 
> +		remoteproc_wpss: remoteproc@...0000 {
> +			compatible = "qcom,sc7280-wpss-pil";
> +			reg = <0 0x08a00000 0 0x10000>;
> +
> +			interrupts-extended = <&intc GIC_SPI 587 IRQ_TYPE_EDGE_RISING>,
> +					      <&wpss_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
> +					      <&wpss_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
> +					      <&wpss_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
> +					      <&wpss_smp2p_in 3 IRQ_TYPE_EDGE_RISING>,
> +					      <&wpss_smp2p_in 7 IRQ_TYPE_EDGE_RISING>;
> +			interrupt-names = "wdog", "fatal", "ready", "handover",
> +					  "stop-ack", "shutdown-ack";
> +
> +			clocks = <&gcc GCC_WPSS_AHB_BDG_MST_CLK>,
> +				 <&gcc GCC_WPSS_AHB_CLK>,
> +				 <&gcc GCC_WPSS_RSCP_CLK>,
> +				 <&rpmhcc RPMH_CXO_CLK>;
> +			clock-names = "ahb_bdg", "ahb",
> +				      "rscp", "xo";
> +
> +			power-domains = <&rpmhpd SC7280_CX>,
> +					<&rpmhpd SC7280_MX>;
> +			power-domain-names = "cx", "mx";
> +
> +			memory-region = <&wpss_mem>;
> +
> +			qcom,qmp = <&aoss_qmp>;
> +
> +			qcom,smem-states = <&wpss_smp2p_out 0>;
> +			qcom,smem-state-names = "stop";
> +
> +			resets = <&aoss_reset AOSS_CC_WCSS_RESTART>,
> +				 <&pdc_reset PDC_WPSS_SYNC_RESET>;
> +			reset-names = "restart", "pdc_sync";
> +
> +			qcom,halt-regs = <&tcsr_mutex 0x37000>;
> +
> +			status = "disabled";
> +
> +			glink-edge {
> +				interrupts-extended = <&ipcc IPCC_CLIENT_WPSS
> +							     IPCC_MPROC_SIGNAL_GLINK_QMP
> +							     IRQ_TYPE_EDGE_RISING>;
> +				mboxes = <&ipcc IPCC_CLIENT_WPSS
> +						IPCC_MPROC_SIGNAL_GLINK_QMP>;
> +
> +				label = "wpss";
> +				qcom,remote-pid = <13>;
> +			};
> +		};
> +
>  		dc_noc: interconnect@...0000 {
>  			reg = <0 0x090e0000 0 0x5080>;
>  			compatible = "qcom,sc7280-dc-noc";

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