linux-kernel - RE: [PATCH v4 2/3] arm64: dts: ls1028a: Add PCIe controller DT nodes

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Date:   Mon, 26 Aug 2019 03:37:05 +0000
From:   "Z.q. Hou" <zhiqiang.hou@....com>
To:     Xiaowei Bao <xiaowei.bao@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>,
        "M.h. Lian" <minghuan.lian@....com>,
        Mingkai Hu <mingkai.hu@....com>, Roy Zang <roy.zang@....com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
CC:     "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        Xiaowei Bao <xiaowei.bao@....com>
Subject: RE: [PATCH v4 2/3] arm64: dts: ls1028a: Add PCIe controller DT nodes

Hi Xiaowei,

> -----Original Message-----
> From: Xiaowei Bao <xiaowei.bao@....com>
> Sent: 2019年8月23日 16:27
> To: robh+dt@...nel.org; mark.rutland@....com; shawnguo@...nel.org;
> Leo Li <leoyang.li@....com>; M.h. Lian <minghuan.lian@....com>;
> Mingkai Hu <mingkai.hu@....com>; Roy Zang <roy.zang@....com>;
> lorenzo.pieralisi@....com; linux-pci@...r.kernel.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; linuxppc-dev@...ts.ozlabs.org; Z.q.
> Hou <zhiqiang.hou@....com>
> Cc: bhelgaas@...gle.com; Xiaowei Bao <xiaowei.bao@....com>; Z.q. Hou
> <zhiqiang.hou@....com>
> Subject: [PATCH v4 2/3] arm64: dts: ls1028a: Add PCIe controller DT nodes
> 
> LS1028a implements 2 PCIe 3.0 controllers.
> 
> Signed-off-by: Xiaowei Bao <xiaowei.bao@....com>
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> ---
> v2:
>  - Fix up the legacy INTx allocate failed issue.
> v3:
>  - No change.
> v4:
>  - Remove the num-lanes proparty.
> depends on:
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatch
> work.kernel.org%2Fproject%2Flinux-pci%2Flist%2F%3Fseries%3D162215&a
> mp;data=02%7C01%7Czhiqiang.hou%40nxp.com%7C07a39c8a38114852ad8
> 808d727a50ea8%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63
> 7021462174809487&amp;sdata=MTVsUPPoy2NrMjpXG4BMocHIN0Gbkh3W
> 8SN622QMLI8%3D&amp;reserved=0
> 
>  arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 50
> ++++++++++++++++++++++++++
>  1 file changed, 50 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> index 72b9a75..a25f9d9 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> @@ -625,6 +625,56 @@
>  			};
>  		};
> 
> +		pcie@...0000 {
> +			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;
> +			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>;
> +			status = "disabled";
> +		};

lost the property num-viewport.

> +
> +		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;
> +			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>;
> +			status = "disabled";
> +		};

Ditto

Thanks,
Zhiqiang
> +
>  		pcie@...000000 { /* Integrated Endpoint Root Complex */
>  			compatible = "pci-host-ecam-generic";
>  			reg = <0x01 0xf0000000 0x0 0x100000>;
> --
> 2.9.5