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Date: Wed, 16 Nov 2022 14:13:06 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Abel Vesa <abel.vesa@...aro.org>, Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 1/2] arm64: dts: qcom: sm8550: Add PCIe PHYs and
controllers nodes
On 16/11/2022 14:04, Abel Vesa wrote:
> Add PCIe controllers and PHY nodes.
>
> Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> ---
> arch/arm64/boot/dts/qcom/sm8550.dtsi | 245 +++++++++++++++++++++++++++
> 1 file changed, 245 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> index 07ba709ca35f..5c274d0372ad 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> @@ -648,12 +648,16 @@ gcc: clock-controller@...000 {
> #reset-cells = <1>;
> #power-domain-cells = <1>;
> clock-names = "bi_tcxo", "sleep_clk",
> + "pcie_0_pipe_clk",
> + "pcie_1_pipe_clk",
> "pcie_1_phy_aux_clk",
> "ufs_phy_rx_symbol_0_clk",
> "ufs_phy_rx_symbol_1_clk",
> "ufs_phy_tx_symbol_0_clk",
> "usb3_phy_wrapper_gcc_usb30_pipe_clk";
Is gcc not going to use index-based matching? clock-names is redundant
in that case.
> clocks = <&rpmhcc RPMH_CXO_CLK>, <&sleep_clk>,
> + <&pcie0_lane>,
> + <&pcie1_lane>,
> <&pcie_1_phy_aux_clk>,
> <&ufs_phy_rx_symbol_0_clk>,
> <&ufs_phy_rx_symbol_1_clk>,
> @@ -1372,6 +1376,247 @@ mmss_noc: interconnect@...0000 {
> qcom,bcm-voters = <&apps_bcm_voter>;
> };
>
> + pcie0: pci@...0000 {
> + compatible = "qcom,pcie-sm8550-pcie0";
> + reg = <0 0x01c00000 0 0x3000>,
> + <0 0x60000000 0 0xf1d>,
> + <0 0x60000f20 0 0xa8>,
> + <0 0x60001000 0 0x1000>,
> + <0 0x60100000 0 0x100000>;
> + reg-names = "parf", "dbi", "elbi", "atu", "config";
> + device_type = "pci";
> + linux,pci-domain = <0>;
> + bus-range = <0x00 0xff>;
> + num-lanes = <2>;
> +
> + #address-cells = <3>;
> + #size-cells = <2>;
> +
> + ranges = <0x01000000 0x0 0x60200000 0 0x60200000 0x0 0x100000>,
> + <0x02000000 0x0 0x60300000 0 0x60300000 0x0 0x3d00000>;
> +
> + interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "msi";
> + #interrupt-cells = <1>;
> + interrupt-map-mask = <0 0 0 0x7>;
> + interrupt-map = <0 0 0 1 &intc 0 0 0 149 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
> + <0 0 0 2 &intc 0 0 0 150 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
> + <0 0 0 3 &intc 0 0 0 151 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
> + <0 0 0 4 &intc 0 0 0 152 IRQ_TYPE_LEVEL_HIGH>; /* int_d */
> +
> + interconnect-names = "icc_path";
> + interconnects = <&pcie_noc MASTER_PCIE_0 0 &mc_virt SLAVE_EBI1 0>;
> +
> + clocks = <&gcc GCC_PCIE_0_PIPE_CLK>,
> + <&gcc GCC_PCIE_0_PIPE_CLK_SRC>,
> + <&pcie0_lane>,
> + <&rpmhcc RPMH_CXO_CLK>,
> + <&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>;
> + clock-names = "pipe",
> + "pipe_mux",
> + "phy_pipe",
> + "ref",
> + "aux",
> + "cfg",
> + "bus_master",
> + "bus_slave",
> + "slave_q2a",
> + "ddrss_sf_tbu",
> + "aggre0";
> +
> + iommus = <&apps_smmu 0x1400 0x7f>;
> + iommu-map = <0x0 &apps_smmu 0x1400 0x1>,
> + <0x100 &apps_smmu 0x1401 0x1>;
> +
> + resets = <&gcc GCC_PCIE_0_BCR>;
> + reset-names = "pci";
> +
> + power-domains = <&gcc PCIE_0_GDSC>;
> + power-domain-names = "gdsc";
> +
> + phys = <&pcie0_lane>;
> + phy-names = "pciephy";
> +
> + perst-gpios = <&tlmm 94 GPIO_ACTIVE_LOW>;
> + wake-gpios = <&tlmm 96 GPIO_ACTIVE_HIGH>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&pcie0_default_state>;
> +
> + status = "disabled";
> + };
> +
> + pcie0_phy: phy@...6000 {
> + compatible = "qcom,sm8550-qmp-gen3x2-pcie-phy";
> + reg = <0 0x01c06000 0 0x200>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> + clocks = <&gcc GCC_PCIE_0_AUX_CLK>,
> + <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
> + <&tcsr TCSR_PCIE_0_CLKREF_EN>,
> + <&gcc GCC_PCIE_0_PHY_RCHNG_CLK>;
> + clock-names = "aux", "cfg_ahb", "ref", "refgen";
> +
> + resets = <&gcc GCC_PCIE_0_PHY_BCR>;
> + reset-names = "phy";
> +
> + assigned-clocks = <&gcc GCC_PCIE_0_PHY_RCHNG_CLK>;
> + assigned-clock-rates = <100000000>;
> +
> + power-domains = <&gcc PCIE_0_PHY_GDSC>;
> + power-domain-names = "gdsc";
> +
> + status = "disabled";
> +
> + pcie0_lane: phy@...6200 {
> + reg = <0 0x1c06e00 0 0x200>, /* tx0 */
> + <0 0x1c07000 0 0x200>, /* rx0 */
> + <0 0x1c06200 0 0x200>, /* pcs */
> + <0 0x1c07600 0 0x200>, /* tx1 */
> + <0 0x1c07800 0 0x200>, /* rx1 */
> + <0 0x1c06600 0 0x200>; /* pcs_pcie */
> + clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
> + clock-names = "pipe0";
> +
> + #clock-cells = <0>;
> + #phy-cells = <0>;
> + clock-output-names = "pcie_0_pipe_clk";
> + };
> + };
> +
> + pcie1: pci@...8000 {
> + compatible = "qcom,pcie-sm8550-pcie1";
> + reg = <0x0 0x01c08000 0x0 0x3000>,
> + <0x0 0x40000000 0x0 0xf1d>,
> + <0x0 0x40000f20 0x0 0xa8>,
> + <0x0 0x40001000 0x0 0x1000>,
> + <0x0 0x40100000 0x0 0x100000>;
> + reg-names = "parf", "dbi", "elbi", "atu", "config";
> + device_type = "pci";
> + linux,pci-domain = <1>;
> + bus-range = <0x00 0xff>;
> + num-lanes = <2>;
> +
> + #address-cells = <3>;
> + #size-cells = <2>;
> +
> + ranges = <0x01000000 0x0 0x40200000 0 0x40200000 0x0 0x100000>,
> + <0x02000000 0x0 0x40300000 0 0x40300000 0x0 0x1fd00000>;
> +
> + interrupts = <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "msi";
> + #interrupt-cells = <1>;
> + interrupt-map-mask = <0 0 0 0x7>;
> + interrupt-map = <0 0 0 1 &intc 0 0 0 434 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
> + <0 0 0 2 &intc 0 0 0 435 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
> + <0 0 0 3 &intc 0 0 0 438 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
> + <0 0 0 4 &intc 0 0 0 439 IRQ_TYPE_LEVEL_HIGH>; /* int_d */
> +
> + clocks = <&gcc GCC_PCIE_1_PIPE_CLK>,
> + <&gcc GCC_PCIE_1_PIPE_CLK_SRC>,
> + <&pcie1_lane>,
> + <&rpmhcc RPMH_CXO_CLK>,
> + <&gcc GCC_PCIE_1_AUX_CLK>,
> + <&gcc GCC_PCIE_1_CFG_AHB_CLK>,
> + <&gcc GCC_PCIE_1_MSTR_AXI_CLK>,
> + <&gcc GCC_PCIE_1_SLV_AXI_CLK>,
> + <&gcc GCC_PCIE_1_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 = "pipe",
> + "pipe_mux",
> + "phy_pipe",
> + "ref",
> + "aux",
> + "cfg",
> + "bus_master",
> + "bus_slave",
> + "slave_q2a",
> + "ddrss_sf_tbu",
> + "aggre1",
> + "cnoc_pcie_sf_axi";
> +
> + interconnect-names = "icc_path";
> + interconnects = <&pcie_noc MASTER_PCIE_1 0 &mc_virt SLAVE_EBI1 0>;
> +
> + iommus = <&apps_smmu 0x1480 0x7f>;
> + iommu-map = <0x0 &apps_smmu 0x1480 0x1>,
> + <0x100 &apps_smmu 0x1481 0x1>;
> +
> + resets = <&gcc GCC_PCIE_1_BCR>,
> + <&gcc GCC_PCIE_1_LINK_DOWN_BCR>;
> + reset-names = "pci",
> + "pcie_1_link_down_reset";
> +
> + power-domains = <&gcc PCIE_1_GDSC>;
> + power-domain-names = "gdsc";
> +
> + phys = <&pcie1_lane>;
> + phy-names = "pciephy";
> +
> + perst-gpios = <&tlmm 97 GPIO_ACTIVE_LOW>;
> + enable-gpios = <&tlmm 99 GPIO_ACTIVE_HIGH>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&pcie1_default_state>;
> +
> + assigned-clocks = <&gcc GCC_PCIE_1_AUX_CLK>;
> + assigned-clock-rates = <19200000>;
> +
> + status = "disabled";
> + };
> +
> + pcie1_phy: phy@...f000 {
> + compatible = "qcom,sm8550-qmp-gen4x2-pcie-phy";
> + reg = <0x0 0x01c0f000 0x0 0x200>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> + clocks = <&gcc GCC_PCIE_1_AUX_CLK>,
> + <&gcc GCC_PCIE_1_PHY_AUX_CLK>,
> + <&gcc GCC_PCIE_1_CFG_AHB_CLK>,
> + <&tcsr TCSR_PCIE_1_CLKREF_EN>,
> + <&gcc GCC_PCIE_1_PHY_RCHNG_CLK>;
> + clock-names = "aux", "aux_phy", "cfg_ahb", "ref", "refgen";
> +
> + resets = <&gcc GCC_PCIE_1_PHY_BCR>,
> + <&gcc GCC_PCIE_1_NOCSR_COM_PHY_BCR>;
Indentation seems off.
> + reset-names = "phy",
> + "pcie_1_nocsr_com_phy_reset";
Identation is off. Won't these two fit in a single 100char line?
Konrad
> +
> + assigned-clocks = <&gcc GCC_PCIE_1_PHY_RCHNG_CLK>;
> + assigned-clock-rates = <100000000>;
> +
> + power-domains = <&gcc PCIE_1_PHY_GDSC>;
> + power-domain-names = "phy_gdsc";
> +
> + status = "disabled";
> +
> + pcie1_lane: phy@...e000 {
> + reg = <0x0 0x1c0e000 0x0 0x200>, /* tx */
> + <0x0 0x1c0e200 0x0 0x300>, /* rx */
> + <0x0 0x1c0f200 0x0 0x200>, /* pcs */
> + <0x0 0x1c0e800 0x0 0x200>, /* tx */
> + <0x0 0x1c0ea00 0x0 0x300>, /* rx */
> + <0x0 0x1c0f400 0x0 0xc00>, /* pcs_pcie */
> + <0x0 0x1c0ee00 0x0 0x0a0>; /* ln_shrd */
> + clocks = <&gcc GCC_PCIE_1_PIPE_CLK>;
> + clock-names = "pipe0";
> +
> + #clock-cells = <0>;
> + #phy-cells = <0>;
> + clock-output-names = "pcie_1_pipe_clk";
> + };
> + };
> +
> tcsr_mutex: hwlock@...0000 {
> compatible = "qcom,tcsr-mutex";
> reg = <0x0 0x01f40000 0x0 0x20000>;
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