Nord PCIe changes

Documentation/devicetree/bindings/pci/qcom,pcie-sa8775p.yaml

@@ -20,6 +20,7 @@ properties:
       - const: qcom,pcie-sa8775p
       - items:
           - enum:
+              - qcom,pcie-nord
               - qcom,pcie-qcs8300
           - const: qcom,pcie-sa8775p
 

Documentation/devicetree/bindings/phy/qcom,glymur-qmp-gen5x8-pcie-phy.yaml

@@ -0,0 +1,177 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,glymur-qmp-gen5x8-pcie-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QMP PCIe multiple link-mode PHY controller (PCIe, Glymur)
+
+maintainers:
+  - Qiang Yu <qiang.yu@oss.qualcomm.com>
+  - Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
+
+description: |
+  The Glymur SoC uses a single PCIe Gen5 PHY hardware block for the
+  PCIe3a/PCIe3b controllers. This block supports two link modes, selected
+  at runtime via a TCSR syscon register:
+
+  1. x8 - a single 8-lane PHY instance is exposed (PCIe3a only)
+  2. x4+x4 - two independent 4-lane PHY instances are exposed (PCIe3a and
+     PCIe3b)
+
+  The node always describes both PHY instances ("port a" and "port b"),
+  regardless of which link mode is active on the board.
+
+properties:
+  compatible:
+    enum:
+      - qcom,glymur-qmp-gen5x8-pcie-phy
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: port_a
+      - const: port_b
+
+  clocks:
+    maxItems: 10
+
+  clock-names:
+    items:
+      - const: aux
+      - const: cfg_ahb
+      - const: ref
+      - const: rchng
+      - const: pipe
+      - const: phy_b_aux
+      - const: cfg_ahb_b
+      - const: rchng_b
+      - const: pipe_b
+      - const: pipediv2_b
+
+  power-domains:
+    maxItems: 2
+
+  power-domain-names:
+    items:
+      - const: port_a
+      - const: port_b
+
+  resets:
+    maxItems: 4
+
+  reset-names:
+    items:
+      - const: port_a
+      - const: port_a_nocsr
+      - const: port_b
+      - const: port_b_nocsr
+
+  vdda-phy-supply: true
+
+  vdda-pll-supply: true
+
+  vdda-refgen0p9-supply: true
+
+  vdda-refgen1p2-supply: true
+
+  qcom,link-mode:
+    description:
+      Reference to a register in the TCSR syscon that reports the link
+      mode the PCIe PHY is currently configured for, either a single x8
+      link or two independent x4 links. The link mode is programmed by
+      firmware before Linux boots; this property is only used to read
+      the active link mode, specified as a phandle to the syscon and
+      the register offset.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle of TCSR syscon
+          - description: offset of link mode register
+
+  "#clock-cells":
+    const: 1
+
+  clock-output-names:
+    items:
+      - description: Name of the PHY A pipe clock output.
+      - description: Name of the PHY B pipe clock output.
+
+  "#phy-cells":
+    const: 1
+    description:
+      The cell is the index of the sub-PHY within the active link
+      mode, e.g. on Glymur, 0 for "port a" and 1 for "port b" in
+      x4x4 mode, and only index 0 (the single wide PHY) is valid in
+      x8 mode.
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - power-domains
+  - power-domain-names
+  - resets
+  - reset-names
+  - vdda-phy-supply
+  - vdda-pll-supply
+  - vdda-refgen0p9-supply
+  - vdda-refgen1p2-supply
+  - qcom,link-mode
+  - "#clock-cells"
+  - clock-output-names
+  - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,glymur-gcc.h>
+    #include <dt-bindings/clock/qcom,glymur-tcsr.h>
+
+    phy@f00000 {
+      compatible = "qcom,glymur-qmp-gen5x8-pcie-phy";
+      reg = <0x00f00000 0x10000>, <0x00f10000 0x10000>;
+      reg-names = "port_a", "port_b";
+
+      clocks = <&gcc GCC_PCIE_PHY_3A_AUX_CLK>,
+               <&gcc GCC_PCIE_3A_CFG_AHB_CLK>,
+               <&tcsr TCSR_PCIE_3_CLKREF_EN>,
+               <&gcc GCC_PCIE_3A_PHY_RCHNG_CLK>,
+               <&gcc GCC_PCIE_3A_PIPE_CLK>,
+               <&gcc GCC_PCIE_PHY_3B_AUX_CLK>,
+               <&gcc GCC_PCIE_3B_CFG_AHB_CLK>,
+               <&gcc GCC_PCIE_3B_PHY_RCHNG_CLK>,
+               <&gcc GCC_PCIE_3B_PIPE_CLK>,
+               <&gcc GCC_PCIE_3B_PIPE_DIV2_CLK>;
+      clock-names = "aux", "cfg_ahb", "ref", "rchng", "pipe",
+                    "phy_b_aux", "cfg_ahb_b", "rchng_b", "pipe_b",
+                    "pipediv2_b";
+
+      resets = <&gcc GCC_PCIE_3A_PHY_BCR>,
+               <&gcc GCC_PCIE_3A_NOCSR_COM_PHY_BCR>,
+               <&gcc GCC_PCIE_3B_PHY_BCR>,
+               <&gcc GCC_PCIE_3B_NOCSR_COM_PHY_BCR>;
+      reset-names = "port_a", "port_a_nocsr", "port_b", "port_b_nocsr";
+
+      power-domains = <&gcc GCC_PCIE_3A_PHY_GDSC>,
+                      <&gcc GCC_PCIE_3B_PHY_GDSC>;
+      power-domain-names = "port_a", "port_b";
+
+      vdda-phy-supply = <&vreg_l3c>;
+      vdda-pll-supply = <&vreg_l2c>;
+
+      vdda-refgen0p9-supply = <&vreg_l3c>;
+      vdda-refgen1p2-supply = <&vreg_l2c>;
+
+      qcom,link-mode = <&tcsr 0x5000>;
+
+      #clock-cells = <1>;
+      clock-output-names = "pcie3a_pipe_clk", "pcie3b_pipe_clk";
+
+      #phy-cells = <1>;
+    };