linux-kernel - Re: [PATCHv7] arm64: dts: ls1028a: Add PCIe controller DT nodes

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Date:   Wed, 11 Mar 2020 16:21:17 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Zhiqiang Hou <Zhiqiang.Hou@....com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        robh+dt@...nel.org, michael@...le.cc, leoyang.li@....com,
        Mingkai.Hu@....com, Minghuan.Lian@....com,
        Xiaowei Bao <xiaowei.bao@....com>
Subject: Re: [PATCHv7] arm64: dts: ls1028a: Add PCIe controller DT nodes

On Mon, Mar 02, 2020 at 12:23:05PM +0800, Zhiqiang Hou wrote:
> From: Xiaowei Bao <xiaowei.bao@....com>
> 
> LS1028a implements 2 PCIe 3.0 controllers.
> 
> Signed-off-by: Xiaowei Bao <xiaowei.bao@....com>
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> Tested-by: Michael Walle <michael@...le.cc>
> ---
> V7:
>  - Rebased the patch to the latest code base.
>  - Added property 'iommu-map'.
> 
>  .../arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 54 +++++++++++++++++++
>  1 file changed, 54 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> index 41c9633293fb..3f31641dcced 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> @@ -717,6 +717,60 @@
>  			#thermal-sensor-cells = <1>;
>  		};
>  
> +		pcie@...0000 {

Please keep nodes sorted in unit-address.

Shawn

> +			compatible = "fsl,ls1028a-pcie";
> +			reg = <0x00 0x03400000 0x0 0x00100000   /* controller registers */
> +			       0x80 0x00000000 0x0 0x00002000>; /* configuration space */
> +			reg-names = "regs", "config";
> +			interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>, /* PME interrupt */
> +				     <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>; /* aer interrupt */
> +			interrupt-names = "pme", "aer";
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			device_type = "pci";
> +			dma-coherent;
> +			num-viewport = <8>;
> +			bus-range = <0x0 0xff>;
> +			ranges = <0x81000000 0x0 0x00000000 0x80 0x00010000 0x0 0x00010000   /* downstream I/O */
> +				  0x82000000 0x0 0x40000000 0x80 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
> +			msi-parent = <&its>;
> +			#interrupt-cells = <1>;
> +			interrupt-map-mask = <0 0 0 7>;
> +			interrupt-map = <0000 0 0 1 &gic 0 0 GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
> +					<0000 0 0 2 &gic 0 0 GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
> +					<0000 0 0 3 &gic 0 0 GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>,
> +					<0000 0 0 4 &gic 0 0 GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
> +			iommu-map = <0 &smmu 0 1>; /* Fixed-up by bootloader */
> +			status = "disabled";
> +		};
> +
> +		pcie@...0000 {
> +			compatible = "fsl,ls1028a-pcie";
> +			reg = <0x00 0x03500000 0x0 0x00100000   /* controller registers */
> +			       0x88 0x00000000 0x0 0x00002000>; /* configuration space */
> +			reg-names = "regs", "config";
> +			interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "pme", "aer";
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			device_type = "pci";
> +			dma-coherent;
> +			num-viewport = <8>;
> +			bus-range = <0x0 0xff>;
> +			ranges = <0x81000000 0x0 0x00000000 0x88 0x00010000 0x0 0x00010000   /* downstream I/O */
> +				  0x82000000 0x0 0x40000000 0x88 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */
> +			msi-parent = <&its>;
> +			#interrupt-cells = <1>;
> +			interrupt-map-mask = <0 0 0 7>;
> +			interrupt-map = <0000 0 0 1 &gic 0 0 GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
> +					<0000 0 0 2 &gic 0 0 GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
> +					<0000 0 0 3 &gic 0 0 GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
> +					<0000 0 0 4 &gic 0 0 GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
> +			iommu-map = <0 &smmu 0 1>; /* Fixed-up by bootloader */
> +			status = "disabled";
> +		};
> +
>  		pcie@...000000 { /* Integrated Endpoint Root Complex */
>  			compatible = "pci-host-ecam-generic";
>  			reg = <0x01 0xf0000000 0x0 0x100000>;
> -- 
> 2.17.1
>