RE: [PATCHv7 10/12] arm64: dts: layerscape: Add PCIe EP node for ls1088a

From: Z.q. Hou
Date: Sun Sep 13 2020 - 12:26:44 EST


Hi Rob,

Thanks a lot for your comments!

> -----Original Message-----
> From: Rob Herring <robh@xxxxxxxxxx>
> Sent: 2020年9月11日 0:48
> To: Z.q. Hou <zhiqiang.hou@xxxxxxx>
> Cc: linux-pci@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx;
> linux-kernel@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
> linuxppc-dev@xxxxxxxxxxxxxxxx; bhelgaas@xxxxxxxxxx;
> lorenzo.pieralisi@xxxxxxx; shawnguo@xxxxxxxxxx; Leo Li
> <leoyang.li@xxxxxxx>; kishon@xxxxxx; gustavo.pimentel@xxxxxxxxxxxx;
> Roy Zang <roy.zang@xxxxxxx>; jingoohan1@xxxxxxxxx;
> andrew.murray@xxxxxxx; Mingkai Hu <mingkai.hu@xxxxxxx>; M.h. Lian
> <minghuan.lian@xxxxxxx>; Xiaowei Bao <xiaowei.bao@xxxxxxx>
> Subject: Re: [PATCHv7 10/12] arm64: dts: layerscape: Add PCIe EP node for
> ls1088a
>
> On Tue, Aug 11, 2020 at 05:54:39PM +0800, Zhiqiang Hou wrote:
> > From: Xiaowei Bao <xiaowei.bao@xxxxxxx>
> >
> > Add PCIe EP node for ls1088a to support EP mode.
> >
> > Signed-off-by: Xiaowei Bao <xiaowei.bao@xxxxxxx>
> > Reviewed-by: Andrew Murray <andrew.murray@xxxxxxx>
> > Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
> > ---
> > V7:
> > - Rebase the patch without functionality change.
> >
> > .../arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 31
> +++++++++++++++++++
> > 1 file changed, 31 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > index 169f4742ae3b..915592141f1b 100644
> > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
> > @@ -499,6 +499,17 @@
> > status = "disabled";
> > };
> >
> > + pcie_ep@3400000 {
>
> pci-ep@...

The DT node name must be "xxx-xx" style? If yes, the LS1046A EP node also has the name "pcie_ep", it also need to be fixed.

Thanks,
Zhiqiang

>
> > + compatible = "fsl,ls1088a-pcie-ep","fsl,ls-pcie-ep";
> > + reg = <0x00 0x03400000 0x0 0x00100000
> > + 0x20 0x00000000 0x8 0x00000000>;
> > + reg-names = "regs", "addr_space";
> > + num-ib-windows = <24>;
> > + num-ob-windows = <128>;
> > + max-functions = /bits/ 8 <2>;
> > + status = "disabled";
> > + };
> > +
> > pcie@3500000 {
> > compatible = "fsl,ls1088a-pcie";
> > reg = <0x00 0x03500000 0x0 0x00100000 /* controller
> registers */
> > @@ -525,6 +536,16 @@
> > status = "disabled";
> > };
> >
> > + pcie_ep@3500000 {
> > + compatible = "fsl,ls1088a-pcie-ep","fsl,ls-pcie-ep";
> > + reg = <0x00 0x03500000 0x0 0x00100000
> > + 0x28 0x00000000 0x8 0x00000000>;
> > + reg-names = "regs", "addr_space";
> > + num-ib-windows = <6>;
> > + num-ob-windows = <8>;
> > + status = "disabled";
> > + };
> > +
> > pcie@3600000 {
> > compatible = "fsl,ls1088a-pcie";
> > reg = <0x00 0x03600000 0x0 0x00100000 /* controller
> registers */
> > @@ -551,6 +572,16 @@
> > status = "disabled";
> > };
> >
> > + pcie_ep@3600000 {
> > + compatible = "fsl,ls1088a-pcie-ep","fsl,ls-pcie-ep";
> > + reg = <0x00 0x03600000 0x0 0x00100000
> > + 0x30 0x00000000 0x8 0x00000000>;
> > + reg-names = "regs", "addr_space";
> > + num-ib-windows = <6>;
> > + num-ob-windows = <8>;
> > + status = "disabled";
> > + };
> > +
> > smmu: iommu@5000000 {
> > compatible = "arm,mmu-500";
> > reg = <0 0x5000000 0 0x800000>;
> > --
> > 2.17.1
> >