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Message-ID: <jwfqxrfbnbijp7s54e44mzqxlmbq32bs4imnjcyjvvvs7deeza@pkylehjbxqib>
Date: Sun, 1 Dec 2024 22:34:42 -0600
From: Bjorn Andersson <andersson@...nel.org>
To: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
Cc: vkoul@...nel.org, kishon@...nel.org, robh+dt@...nel.org,
manivannan.sadhasivam@...aro.org, bhelgaas@...gle.com, kw@...ux.com, lpieralisi@...nel.org,
quic_qianyu@...cinc.com, conor+dt@...nel.org, neil.armstrong@...aro.org,
konradybcio@...nel.org, quic_tsoni@...cinc.com, quic_shashim@...cinc.com,
quic_kaushalk@...cinc.com, quic_tdas@...cinc.com, quic_tingweiz@...cinc.com,
quic_aiquny@...cinc.com, kernel@...cinc.com, linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
Krishna chaitanya chundru <quic_krichai@...cinc.com>
Subject: Re: [PATCH v2 5/6] arm64: dts: qcom: qcs615: enable pcie for qcs615
soc
On Fri, Nov 22, 2024 at 10:33:13AM +0800, Ziyue Zhang wrote:
The way we say "this is a DT patch for qcs615" is by prefixing the
subject "arm64: dts: qcom: qcs615: ", there's therefor no reason to
include "for qcs615" in the tail of the subject. You can further drop
the "soc" tail, as you said "qcs615" and not e.g. "qcs615-ride".
> Add configurations in devicetree for PCIe0, including registers, clocks,
> interrupts and phy setting sequence.
>
> Signed-off-by: Krishna chaitanya chundru <quic_krichai@...cinc.com>
Patch has wrong Author.
> Signed-off-by: Ziyue Zhang <quic_ziyuzhan@...cinc.com>
> ---
> arch/arm64/boot/dts/qcom/qcs615.dtsi | 158 +++++++++++++++++++++++++++
> 1 file changed, 158 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
> index 868808918fd2..c56cc30a59f3 100644
> --- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
> @@ -678,6 +678,164 @@ rpmhpd_opp_turbo_l1: opp-9 {
> };
> };
>
> + pcie: pcie@...8000 {
This node looks to be in the wrong place.
Regards,
Bjorn
> + compatible = "qcom,pcie-qcs615";
> + reg = <0x0 0x01c08000 0x0 0x3000>,
> + <0x0 0x40000000 0x0 0xf1d>,
> + <0x0 0x40000f20 0x0 0xa8>,
> + <0x0 0x40001000 0x0 0x1000>,
> + <0x0 0x40100000 0x0 0x100000>,
> + <0x0 0x01c0b000 0x0 0x1000>;
> +
> + reg-names = "parf",
> + "dbi",
> + "elbi",
> + "atu",
> + "config",
> + "mhi";
> +
> + device_type = "pci";
> + linux,pci-domain = <0>;
> + bus-range = <0x00 0xff>;
> + num-lanes = <1>;
> +
> + #address-cells = <3>;
> + #size-cells = <2>;
> +
> + ranges = <0x01000000 0x0 0x00000000 0x0 0x40200000 0x0 0x100000>,
> + <0x02000000 0x0 0x40300000 0x0 0x40300000 0x0 0x1fd00000>;
> +
> + interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "msi0",
> + "msi1",
> + "msi2",
> + "msi3",
> + "msi4",
> + "msi5",
> + "msi6",
> + "msi7",
> + "global";
> +
> + interrupt-map = <0 0 0 0 &intc 0 0 0 140 IRQ_TYPE_LEVEL_HIGH>,
> + <0 0 0 1 &intc 0 0 0 149 IRQ_TYPE_LEVEL_HIGH>,
> + <0 0 0 2 &intc 0 0 0 150 IRQ_TYPE_LEVEL_HIGH>,
> + <0 0 0 3 &intc 0 0 0 151 IRQ_TYPE_LEVEL_HIGH>,
> + <0 0 0 4 &intc 0 0 0 152 IRQ_TYPE_LEVEL_HIGH>;
> +
> + #interrupt-cells = <1>;
> + interrupt-map-mask = <0 0 0 0x7>;
> +
> + interconnects = <&aggre1_noc MASTER_PCIE QCOM_ICC_TAG_ALWAYS
> + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
> + <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ALWAYS
> + &config_noc SLAVE_PCIE_0 QCOM_ICC_TAG_ALWAYS>;
> + interconnect-names = "pcie-mem", "cpu-pcie";
> +
> + 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>,
> + <&rpmhcc RPMH_CXO_CLK>;
> +
> + clock-names = "aux",
> + "cfg",
> + "bus_master",
> + "bus_slave",
> + "slave_q2a",
> + "ref";
> +
> + assigned-clocks = <&gcc GCC_PCIE_0_AUX_CLK>;
> + assigned-clock-rates = <19200000>;
> +
> + operating-points-v2 = <&pcie_opp_table>;
> +
> + resets = <&gcc GCC_PCIE_0_BCR>;
> + reset-names = "pci";
> +
> + phys = <&pcie_phy>;
> + phy-names = "pciephy";
> +
> + power-domains = <&gcc PCIE_0_GDSC>;
> +
> + dma-coherent;
> +
> + iommu-map = <0x0 &apps_smmu 0x400 0x1>,
> + <0x100 &apps_smmu 0x401 0x1>;
> +
> + status = "disabled";
> + pcie_opp_table: opp-table {
> + compatible = "operating-points-v2";
> +
> + /* GEN 1 x1 */
> + opp-2500000 {
> + opp-hz = /bits/ 64 <2500000>;
> + required-opps = <&rpmhpd_opp_low_svs>;
> + opp-peak-kBps = <250000 1>;
> + };
> +
> + /* GEN 2 x1 */
> + opp-5000000 {
> + opp-hz = /bits/ 64 <5000000>;
> + required-opps = <&rpmhpd_opp_low_svs>;
> + opp-peak-kBps = <500000 1>;
> + };
> +
> + /* GEN 3 x1 */
> + opp-8000000 {
> + opp-hz = /bits/ 64 <8000000>;
> + required-opps = <&rpmhpd_opp_svs_l1>;
> + opp-peak-kBps = <984500 1>;
> + };
> + };
> +
> + pcie@0 {
> + device_type = "pci";
> + reg = <0x0 0x0 0x0 0x0 0x0>;
> + bus-range = <0x01 0xff>;
> +
> + #address-cells = <3>;
> + #size-cells = <2>;
> + ranges;
> + };
> + };
> +
> + pcie_phy: phy@...e000 {
> + compatible = "qcom,qcs615-qmp-gen3x1-pcie-phy";
> + reg = <0x0 0x01c0e000 0x0 0x1000>;
> +
> + clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
> + <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
> + <&gcc GCC_PCIE_0_CLKREF_CLK>,
> + <&gcc GCC_PCIE0_PHY_REFGEN_CLK>,
> + <&gcc GCC_PCIE_0_PIPE_CLK>;
> + clock-names = "aux",
> + "cfg_ahb",
> + "ref",
> + "refgen",
> + "pipe";
> +
> + clock-output-names = "pcie_0_pipe_clk";
> + #clock-cells = <0>;
> +
> + #phy-cells = <0>;
> +
> + resets = <&gcc GCC_PCIE_0_PHY_BCR>;
> + reset-names = "phy";
> +
> + assigned-clocks = <&gcc GCC_PCIE0_PHY_REFGEN_CLK>;
> + assigned-clock-rates = <100000000>;
> +
> + status = "disabled";
> + };
> +
> arch_timer: timer {
> compatible = "arm,armv8-timer";
> interrupts = <GIC_PPI 1 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> --
> 2.34.1
>
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