Re: [PATCH v6 1/3] arm64: dts: qcom: eliza: Add PCIe PHY and controller nodes

On Thu, Jul 30, 2026 at 10:18:53AM +0530, Krishna Chaitanya Chundru wrote:
> Eliza supports two PCIe instances: one 8GT/s x1 (PCIe0) and one 8GT/s x2
> (PCIe1). Add PCIe controller and PHY nodes for both instances, and update
> the GCC clock references to use the newly added PHY nodes instead of
> placeholder zeros.
> 
> Reviewed-by: Konrad Dybcio <[email protected]>
> Reviewed-by: Bartosz Golaszewski <[email protected]>
> Reviewed-by: Manivannan Sadhasivam <[email protected]>
> Reviewed-by: Abel Vesa <[email protected]>
> Signed-off-by: Krishna Chaitanya Chundru <[email protected]>
> ---
>  arch/arm64/boot/dts/qcom/eliza.dtsi | 413 +++++++++++++++++++++++++++++++++++-
>  1 file changed, 411 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/eliza.dtsi b/arch/arm64/boot/dts/qcom/eliza.dtsi
> index 977de44b816e..01e9d4c91404 100644
> --- a/arch/arm64/boot/dts/qcom/eliza.dtsi
> +++ b/arch/arm64/boot/dts/qcom/eliza.dtsi
> @@ -640,8 +640,8 @@ gcc: clock-controller@100000 {
>  
>  			clocks = <&bi_tcxo_div2>,
>  				 <&sleep_clk>,
> -				 <0>,
> -				 <0>,
> +				 <&pcie0_phy>,
> +				 <&pcie1_phy>,
>  				 <&ufs_mem_phy 0>,
>  				 <&ufs_mem_phy 1>,
>  				 <&ufs_mem_phy 2>,
> @@ -1786,6 +1786,369 @@ mmss_noc: interconnect@1780000 {
>  			#interconnect-cells = <2>;
>  		};
>  
> +		pcie0: pcie@1c00000 {
> +			device_type = "pci";
> +			compatible = "qcom,eliza-pcie", "qcom,pcie-sm8550";
> +			reg = <0x0 0x01c00000 0x0 0x3000>,
> +			      <0x0 0x40000000 0x0 0xf1d>,
> +			      <0x0 0x40000f20 0x0 0xa8>,
> +			      <0x0 0x40001000 0x0 0x1000>,
> +			      <0x0 0x40100000 0x0 0x100000>,
> +			      <0x0 0x01c03000 0x0 0x1000>;
> +			reg-names = "parf",
> +				    "dbi",
> +				    "elbi",
> +				    "atu",
> +				    "config",
> +				    "mhi";
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			ranges = <0x01000000 0x0 0x00000000 0x0 0x40200000 0x0 0x100000>,
> +				 <0x02000000 0x0 0x40300000 0x0 0x40300000 0x0 0x3d00000>;
> +
> +			interrupts = <GIC_SPI 376 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 478 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 479 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 535 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 536 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 537 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 540 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 653 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 370 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "msi0",
> +					  "msi1",
> +					  "msi2",
> +					  "msi3",
> +					  "msi4",
> +					  "msi5",
> +					  "msi6",
> +					  "msi7",
> +					  "global";
> +
> +			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>,
> +				 <&gcc GCC_DDRSS_PCIE_SF_QTB_CLK>,
> +				 <&gcc GCC_AGGRE_NOC_PCIE_AXI_CLK>,
> +				 <&gcc GCC_CNOC_PCIE_SF_AXI_CLK>;
> +			clock-names = "aux",
> +				      "cfg",
> +				      "bus_master",
> +				      "bus_slave",
> +				      "slave_q2a",
> +				      "ddrss_sf_tbu",
> +				      "noc_aggr",
> +				      "cnoc_sf_axi";
> +
> +			resets = <&gcc GCC_PCIE_0_BCR>,
> +				 <&gcc GCC_PCIE_0_LINK_DOWN_BCR>;
> +			reset-names = "pci",
> +				      "link_down";
> +
> +			interconnects = <&pcie_noc MASTER_PCIE_0 QCOM_ICC_TAG_ALWAYS
> +					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
> +					<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
> +					 &cnoc_main SLAVE_PCIE_0 QCOM_ICC_TAG_ACTIVE_ONLY>;
> +			interconnect-names = "pcie-mem",
> +					     "cpu-pcie";
> +
> +			power-domains = <&gcc GCC_PCIE_0_GDSC>;
> +
> +			operating-points-v2 = <&pcie0_opp_table>;
> +
> +			iommu-map = <0x0 &apps_smmu 0x1480 0x1>,
> +				    <0x100 &apps_smmu 0x1481 0x1>;

As we learned recently, you need to use 2 cells for SID, since apps_smmu uses
'#iommu-cells = <2>':
			iommu-map = <0x0 &apps_smmu 0x1480 0x0 0x1>,
				    <0x100 &apps_smmu 0x1481 0x0 0x1>;

Same for the other node.

- Mani

-- 
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