On Wed, Sep 20, 2023 at 07:25:12PM +0530, Mrinmay Sarkar wrote:
> Add ep pcie dtsi node for pcie0 controller found on sa8775p platform.
>
It would be good to add more info in the commit message, like PCIe Gen, lane
info, IP revision etc...
> Signed-off-by: Mrinmay Sarkar <quic_msarkar@xxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/qcom/sa8775p.dtsi | 45 +++++++++++++++++++++++++++++++++++
> 1 file changed, 45 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 9f4f58e8..5571131 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -2600,4 +2600,49 @@
>
> status = "disabled";
> };
> +
> + pcie0_ep: pcie-ep@1c00000 {
> + compatible = "qcom,sa8775p-pcie-ep";
> + reg = <0x0 0x01c00000 0x0 0x3000>,
> + <0x0 0x40000000 0x0 0xf20>,
> + <0x0 0x40000f20 0x0 0xa8>,
> + <0x0 0x40001000 0x0 0x4000>,
> + <0x0 0x40200000 0x0 0x100000>,
> + <0x0 0x01c03000 0x0 0x1000>,
> + <0x0 0x40005000 0x0 0x2000>;
> + reg-names = "parf", "dbi", "elbi", "atu", "addr_space",
> + "mmio", "dma";
> +
> + clocks = <&gcc GCC_PCIE_0_AUX_CLK>,
> + <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
> + <&gcc GCC_PCIE_0_MSTR_AXI_CLK>,
> + <&gcc GCC_PCIE_0_SLV_AXI_CLK>,
> + <&gcc GCC_PCIE_0_SLV_Q2A_AXI_CLK>;
> +
> + clock-names = "aux",
> + "cfg",
> + "bus_master",
> + "bus_slave",
> + "slave_q2a";
> +
> + interrupts = <GIC_SPI 306 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 630 IRQ_TYPE_LEVEL_HIGH>;
> +
> + interrupt-names = "global", "doorbell", "dma";
> +
> + interconnects = <&pcie_anoc MASTER_PCIE_0 0 &mc_virt SLAVE_EBI1 0>,
> + <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_PCIE_0 0>;
> + interconnect-names = "pcie-mem", "cpu-pcie";
> +
Don't you need iommu property?
> + resets = <&gcc GCC_PCIE_0_BCR>;
> + reset-names = "core";
> + power-domains = <&gcc PCIE_0_GDSC>;
> + phys = <&pcie0_phy>;
> + phy-names = "pciephy";
> + max-link-speed = <3>;
Gen 3?
> + num-lanes = <2>;
Only 2 lanes? Or the other one has 4 lanes?
- Mani
> +
> + status = "disabled";
> + };
> };
> --
> 2.7.4
>
--
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