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Message-ID: <AM6PR04MB57811882B16E9DA956A515E684490@AM6PR04MB5781.eurprd04.prod.outlook.com>
Date: Tue, 12 Mar 2019 09:42:36 +0000
From: "Z.q. Hou" <zhiqiang.hou@....com>
To: "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"bhelgaas@...gle.com" <bhelgaas@...gle.com>,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
"mark.rutland@....com" <mark.rutland@....com>,
"l.subrahmanya@...iveil.co.in" <l.subrahmanya@...iveil.co.in>,
"shawnguo@...nel.org" <shawnguo@...nel.org>,
Leo Li <leoyang.li@....com>,
"lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
"catalin.marinas@....com" <catalin.marinas@....com>,
"will.deacon@....com" <will.deacon@....com>
CC: Mingkai Hu <mingkai.hu@....com>,
"M.h. Lian" <minghuan.lian@....com>,
Xiaowei Bao <xiaowei.bao@....com>
Subject: RE: [PATCHv4 23/28] dt-bindings: pci: Add NXP Layerscape SoCs PCIe
Gen4 controller
Hi All,
Please ignore this, has re-sent it adding lost Reviewed-by tag.
Thanks,
Zhiqiang
> -----Original Message-----
> From: Z.q. Hou
> Sent: 2019年3月11日 17:33
> To: linux-pci@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org;
> bhelgaas@...gle.com; robh+dt@...nel.org; mark.rutland@....com;
> l.subrahmanya@...iveil.co.in; shawnguo@...nel.org; Leo Li
> <leoyang.li@....com>; lorenzo.pieralisi@....com;
> catalin.marinas@....com; will.deacon@....com
> Cc: Mingkai Hu <mingkai.hu@....com>; M.h. Lian
> <minghuan.lian@....com>; Xiaowei Bao <xiaowei.bao@....com>; Z.q. Hou
> <zhiqiang.hou@....com>
> Subject: [PATCHv4 23/28] dt-bindings: pci: Add NXP Layerscape SoCs PCIe
> Gen4 controller
>
> From: Hou Zhiqiang <Zhiqiang.Hou@....com>
>
> Add PCIe Gen4 controller DT bindings of NXP Layerscape SoCs.
>
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> ---
> V4:
> - no change
>
> .../bindings/pci/layerscape-pci-gen4.txt | 52 +++++++++++++++++++
> MAINTAINERS | 8 +++
> 2 files changed, 60 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/pci/layerscape-pci-gen4.txt
>
> diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci-gen4.txt
> b/Documentation/devicetree/bindings/pci/layerscape-pci-gen4.txt
> new file mode 100644
> index 000000000000..b40fb5d15d3d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/layerscape-pci-gen4.txt
> @@ -0,0 +1,52 @@
> +NXP Layerscape PCIe Gen4 controller
> +
> +This PCIe controller is based on the Mobiveil PCIe IP and thus inherits
> +all the common properties defined in mobiveil-pcie.txt.
> +
> +Required properties:
> +- compatible: should contain the platform identifier such as:
> + "fsl,lx2160a-pcie"
> +- reg: base addresses and lengths of the PCIe controller register blocks.
> + "csr_axi_slave": Bridge config registers
> + "config_axi_slave": PCIe controller registers
> +- interrupts: A list of interrupt outputs of the controller. Must
> +contain an
> + entry for each entry in the interrupt-names property.
> +- interrupt-names: It could include the following entries:
> + "intr": The interrupt that is asserted for controller interrupts
> + "aer": Asserted for aer interrupt when chip support the aer interrupt with
> + none MSI/MSI-X/INTx mode,but there is interrupt line for aer.
> + "pme": Asserted for pme interrupt when chip support the pme interrupt
> with
> + none MSI/MSI-X/INTx mode,but there is interrupt line for pme.
> +- dma-coherent: Indicates that the hardware IP block can ensure the
> +coherency
> + of the data transferred from/to the IP block. This can avoid the
> +software
> + cache flush/invalid actions, and improve the performance significantly.
> +- msi-parent : See the generic MSI binding described in
> + Documentation/devicetree/bindings/interrupt-controller/msi.txt.
> +
> +Example:
> +
> + pcie@...0000 {
> + compatible = "fsl,lx2160a-pcie";
> + reg = <0x00 0x03400000 0x0 0x00100000 /* controller registers
> */
> + 0x80 0x00000000 0x0 0x00001000>; /* configuration space
> */
> + reg-names = "csr_axi_slave", "config_axi_slave";
> + interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>, /* AER
> interrupt */
> + <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>, /* PME interrupt
> */
> + <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>; /* controller
> interrupt */
> + interrupt-names = "aer", "pme", "intr";
> + #address-cells = <3>;
> + #size-cells = <2>;
> + device_type = "pci";
> + apio-wins = <8>;
> + ppio-wins = <8>;
> + dma-coherent;
> + bus-range = <0x0 0xff>;
> + msi-parent = <&its>;
> + ranges = <0x82000000 0x0 0x40000000 0x80 0x40000000 0x0
> 0x40000000>;
> + #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>;
> + };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 1013e74b14f2..2d18c7213991 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -11835,6 +11835,14 @@ L: linux-arm-kernel@...ts.infradead.org
> S: Maintained
> F: drivers/pci/controller/dwc/*layerscape*
>
> +PCI DRIVER FOR NXP LAYERSCAPE GEN4 CONTROLLER
> +M: Hou Zhiqiang <Zhiqiang.Hou@....com>
> +L: linux-pci@...r.kernel.org
> +L: linux-arm-kernel@...ts.infradead.org
> +S: Maintained
> +F: Documentation/devicetree/bindings/pci/layerscape-pci-gen4.txt
> +F: drivers/pci/controller/mobibeil/pci-layerscape-gen4.c
> +
> PCI DRIVER FOR GENERIC OF HOSTS
> M: Will Deacon <will.deacon@....com>
> L: linux-pci@...r.kernel.org
> --
> 2.17.1
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