linux-kernel - Re: [PATCH v11 2/6] arm64: dts: xilinx: zynqmp: Add RPU subsystem device node

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Date:   Fri, 25 Nov 2022 09:13:47 -0700
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Michal Simek <michal.simek@....com>
Cc:     Tanmay Shah <tanmay.shah@....com>, andersson@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        bill.mills@...aro.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v11 2/6] arm64: dts: xilinx: zynqmp: Add RPU subsystem
 device node

On Fri, Nov 25, 2022 at 10:22:47AM +0100, Michal Simek wrote:
> 
> 
> On 11/15/22 00:39, Tanmay Shah wrote:
> > RPU subsystem can be configured in cluster-mode or split mode.
> > Also each r5 core has separate power domains.
> > 
> > Signed-off-by: Tanmay Shah <tanmay.shah@....com>
> > ---
> > 
> > Changes in v11:
> >    - None
> > 
> > Changes in v10:
> >    - Rename node name to remoteproc
> > 
> > Changes in v9:
> >    - remove unused labels
> > 
> > Changes in v8:
> >    - None
> > 
> > Changes in v7:
> >    - None
> > 
> > Changes in v6:
> >    - None
> > 
> > Changes in v5:
> >    - Remove optional reg property from r5fss node
> >    - Move r5fss node out of axi node
> > 
> > Changes in v4:
> >    - Add reserved memory region node and use it in RPU subsystem node
> > 
> > Changes in v3:
> >    - Fix checkpatch.pl style warning
> > 
> >   arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 33 ++++++++++++++++++++++++++
> >   1 file changed, 33 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> > index a549265e55f6..c0f60833c0ae 100644
> > --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> > +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
> > @@ -100,6 +100,22 @@ opp03 {
> >   		};
> >   	};
> > +	reserved-memory {
> > +		#address-cells = <2>;
> > +		#size-cells = <2>;
> > +		ranges;
> > +
> > +		rproc_0_fw_image: memory@...00000 {
> > +			no-map;
> > +			reg = <0x0 0x3ed00000 0x0 0x40000>;
> > +		};
> > +
> > +		rproc_1_fw_image: memory@...00000 {
> > +			no-map;
> > +			reg = <0x0 0x3ef00000 0x0 0x40000>;
> > +		};
> > +	};
> > +
> >   	zynqmp_ipi: zynqmp_ipi {
> >   		compatible = "xlnx,zynqmp-ipi-mailbox";
> >   		interrupt-parent = <&gic>;
> > @@ -203,6 +219,23 @@ fpga_full: fpga-full {
> >   		ranges;
> >   	};
> > +	remoteproc {
> > +		compatible = "xlnx,zynqmp-r5fss";
> > +		xlnx,cluster-mode = <1>;
> > +
> > +		r5f-0 {
> > +			compatible = "xlnx,zynqmp-r5f";
> > +			power-domains = <&zynqmp_firmware PD_RPU_0>;
> > +			memory-region = <&rproc_0_fw_image>;
> > +		};
> > +
> > +		r5f-1 {
> > +			compatible = "xlnx,zynqmp-r5f";
> > +			power-domains = <&zynqmp_firmware PD_RPU_1>;
> > +			memory-region = <&rproc_1_fw_image>;
> > +		};
> > +	};
> > +
> >   	amba: axi {
> >   		compatible = "simple-bus";
> >   		#address-cells = <2>;
> 
> Matthieu: If you want to take this via your tree here is mine.
> 
> Acked-by: Michal Simek <michal.simek@....com>

I have applied the whole set.

Thanks,
Mathieu

> 
> In another case I will queue it for next release when dt binding is applied.
> 
> Thanks,
> Michal