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Message-ID: <20250318054034.j5stptttkoiutbk5@thinkpad>
Date: Tue, 18 Mar 2025 11:10:34 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
Cc: bhelgaas@...gle.com, lpieralisi@...nel.org, kw@...ux.com,
robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
vkoul@...nel.org, kishon@...nel.org, andersson@...nel.org,
konradybcio@...nel.org, dmitry.baryshkov@...aro.org,
neil.armstrong@...aro.org, abel.vesa@...aro.org,
quic_qianyu@...cinc.com, quic_krichai@...cinc.com,
johan+linaro@...nel.org, linux-arm-msm@...r.kernel.org,
linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v4 5/8] arm64: dts: qcom: qcs8300: enable pcie0
On Mon, Mar 10, 2025 at 02:31:00PM +0800, Ziyue Zhang wrote:
> Add configurations in devicetree for PCIe0, including registers, clocks,
> interrupts and phy setting sequence.
>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Signed-off-by: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
- Mani
> ---
> arch/arm64/boot/dts/qcom/qcs8300.dtsi | 168 +++++++++++++++++++++++++-
> 1 file changed, 167 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> index 4a057f7c0d9f..5d05640c5e21 100644
> --- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> @@ -601,7 +601,7 @@ gcc: clock-controller@...000 {
> #power-domain-cells = <1>;
> clocks = <&rpmhcc RPMH_CXO_CLK>,
> <&sleep_clk>,
> - <0>,
> + <&pcie0_phy>,
> <0>,
> <0>,
> <0>,
> @@ -711,6 +711,172 @@ mmss_noc: interconnect@...0000 {
> qcom,bcm-voters = <&apps_bcm_voter>;
> };
>
> + pcie0: pci@...0000 {
> + device_type = "pci";
> + compatible = "qcom,pcie-qcs8300", "qcom,pcie-sa8775p";
> + reg = <0x0 0x01c00000 0x0 0x3000>,
> + <0x0 0x40000000 0x0 0xf20>,
> + <0x0 0x40000f20 0x0 0xa8>,
> + <0x0 0x40001000 0x0 0x4000>,
> + <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 0x1fd00000>;
> + bus-range = <0x00 0xff>;
> +
> + dma-coherent;
> +
> + linux,pci-domain = <0>;
> + num-lanes = <2>;
> +
> + interrupts = <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 308 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 309 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 313 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 314 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 374 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 375 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 306 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "msi0",
> + "msi1",
> + "msi2",
> + "msi3",
> + "msi4",
> + "msi5",
> + "msi6",
> + "msi7",
> + "global";
> +
> + #interrupt-cells = <1>;
> + interrupt-map-mask = <0 0 0 0x7>;
> + interrupt-map = <0 0 0 1 &intc GIC_SPI 434 IRQ_TYPE_LEVEL_HIGH>,
> + <0 0 0 2 &intc GIC_SPI 435 IRQ_TYPE_LEVEL_HIGH>,
> + <0 0 0 3 &intc GIC_SPI 438 IRQ_TYPE_LEVEL_HIGH>,
> + <0 0 0 4 &intc GIC_SPI 439 IRQ_TYPE_LEVEL_HIGH>;
> +
> + 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";
> +
> + assigned-clocks = <&gcc GCC_PCIE_0_AUX_CLK>;
> + assigned-clock-rates = <19200000>;
> +
> + interconnects = <&pcie_anoc 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
> + &config_noc SLAVE_PCIE_0 QCOM_ICC_TAG_ACTIVE_ONLY>;
> + interconnect-names = "pcie-mem",
> + "cpu-pcie";
> +
> + iommu-map = <0x0 &pcie_smmu 0x0000 0x1>,
> + <0x100 &pcie_smmu 0x0001 0x1>;
> +
> + resets = <&gcc GCC_PCIE_0_BCR>,
> + <&gcc GCC_PCIE_0_LINK_DOWN_BCR>;
> + reset-names = "pci",
> + "link_down";
> +
> + power-domains = <&gcc GCC_PCIE_0_GDSC>;
> +
> + phys = <&pcie0_phy>;
> + phy-names = "pciephy";
> +
> + status = "disabled";
> +
> + pcie3_opp_table: opp-table {
> + compatible = "operating-points-v2";
> +
> + /* GEN 1 x1 */
> + opp-2500000 {
> + opp-hz = /bits/ 64 <2500000>;
> + required-opps = <&rpmhpd_opp_svs_l1>;
> + opp-peak-kBps = <250000 1>;
> + };
> +
> + /* GEN 1 x2 and GEN 2 x1 */
> + opp-5000000 {
> + opp-hz = /bits/ 64 <5000000>;
> + required-opps = <&rpmhpd_opp_svs_l1>;
> + opp-peak-kBps = <500000 1>;
> + };
> +
> + /* GEN 2 x2 */
> + opp-10000000 {
> + opp-hz = /bits/ 64 <10000000>;
> + required-opps = <&rpmhpd_opp_svs_l1>;
> + opp-peak-kBps = <1000000 1>;
> + };
> +
> + /* GEN 3 x1 */
> + opp-8000000 {
> + opp-hz = /bits/ 64 <8000000>;
> + required-opps = <&rpmhpd_opp_svs_l1>;
> + opp-peak-kBps = <984500 1>;
> + };
> +
> + /* GEN 3 x2 and GEN 4 x1 */
> + opp-16000000 {
> + opp-hz = /bits/ 64 <16000000>;
> + required-opps = <&rpmhpd_opp_nom>;
> + opp-peak-kBps = <1969000 1>;
> + };
> +
> + /* GEN 4 x2 */
> + opp-32000000 {
> + opp-hz = /bits/ 64 <32000000>;
> + required-opps = <&rpmhpd_opp_nom>;
> + opp-peak-kBps = <3938000 1>;
> + };
> + };
> + };
> +
> + pcie0_phy: phy@...4000 {
> + compatible = "qcom,qcs8300-qmp-gen4x2-pcie-phy";
> + reg = <0x0 0x01c04000 0x0 0x2000>;
> +
> + clocks = <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
> + <&gcc GCC_PCIE_CLKREF_EN>,
> + <&gcc GCC_PCIE_0_PHY_RCHNG_CLK>,
> + <&gcc GCC_PCIE_0_PIPE_CLK>,
> + <&gcc GCC_PCIE_0_PIPEDIV2_CLK>,
> + <&gcc GCC_PCIE_0_PHY_AUX_CLK>;
> + clock-names = "cfg_ahb",
> + "ref",
> + "rchng",
> + "pipe",
> + "pipediv2",
> + "phy_aux";
> +
> + resets = <&gcc GCC_PCIE_0_PHY_BCR>;
> + reset-names = "phy";
> +
> + assigned-clocks = <&gcc GCC_PCIE_0_PHY_RCHNG_CLK>;
> + assigned-clock-rates = <100000000>;
> +
> + #clock-cells = <0>;
> + clock-output-names = "pcie_0_pipe_clk";
> +
> + #phy-cells = <0>;
> +
> + status = "disabled";
> + };
> +
> ufs_mem_hc: ufs@...4000 {
> compatible = "qcom,qcs8300-ufshc", "qcom,ufshc", "jedec,ufs-2.0";
> reg = <0x0 0x01d84000 0x0 0x3000>;
> --
> 2.34.1
>
--
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