dt-bindings: interconnect: document the RPMh Network-On-Chip Interconnect in Qualcomm Milos SoC

Document the RPMh Network-On-Chip Interconnect of the Milos (e.g.
SM7635) SoC.

Reviewed-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Luca Weiss <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Georgi Djakov <[email protected]>

Author: lweiss-fairphone

Documentation/devicetree/bindings/interconnect/qcom,milos-rpmh.yaml

@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,milos-rpmh.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm RPMh Network-On-Chip Interconnect on Milos SoC
+
+maintainers:
+  - Luca Weiss <[email protected]>
+
+description: |
+  RPMh interconnect providers support system bandwidth requirements through
+  RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
+  able to communicate with the BCM through the Resource State Coordinator (RSC)
+  associated with each execution environment. Provider nodes must point to at
+  least one RPMh device child node pertaining to their RSC and each provider
+  can map to multiple RPMh resources.
+
+  See also: include/dt-bindings/interconnect/qcom,milos-rpmh.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,milos-aggre1-noc
+      - qcom,milos-aggre2-noc
+      - qcom,milos-clk-virt
+      - qcom,milos-cnoc-cfg
+      - qcom,milos-cnoc-main
+      - qcom,milos-gem-noc
+      - qcom,milos-lpass-ag-noc
+      - qcom,milos-mc-virt
+      - qcom,milos-mmss-noc
+      - qcom,milos-nsp-noc
+      - qcom,milos-pcie-anoc
+      - qcom,milos-system-noc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+required:
+  - compatible
+
+allOf:
+  - $ref: qcom,rpmh-common.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,milos-clk-virt
+              - qcom,milos-mc-virt
+    then:
+      properties:
+        reg: false
+    else:
+      required:
+        - reg
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,milos-pcie-anoc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: aggre-NOC PCIe AXI clock
+            - description: cfg-NOC PCIe a-NOC AHB clock
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,milos-aggre1-noc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: aggre USB3 PRIM AXI clock
+            - description: aggre UFS PHY AXI clock
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,milos-aggre2-noc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: RPMH CC IPA clock
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,milos-aggre1-noc
+              - qcom,milos-aggre2-noc
+              - qcom,milos-pcie-anoc
+    then:
+      required:
+        - clocks
+    else:
+      properties:
+        clocks: false
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,milos-gcc.h>
+
+    interconnect-0 {
+        compatible = "qcom,milos-clk-virt";
+        #interconnect-cells = <2>;
+        qcom,bcm-voters = <&apps_bcm_voter>;
+    };
+
+    interconnect@16e0000 {
+        compatible = "qcom,milos-aggre1-noc";
+        reg = <0x016e0000 0x16400>;
+        #interconnect-cells = <2>;
+        clocks = <&gcc GCC_AGGRE_USB3_PRIM_AXI_CLK>,
+                 <&gcc GCC_AGGRE_UFS_PHY_AXI_CLK>;
+        qcom,bcm-voters = <&apps_bcm_voter>;
+    };

include/dt-bindings/interconnect/qcom,milos-rpmh.h

@@ -0,0 +1,141 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright (c) 2023-2024, Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2025, Luca Weiss <[email protected]>
+ */
+
+#ifndef __DT_BINDINGS_INTERCONNECT_QCOM_MILOS_H
+#define __DT_BINDINGS_INTERCONNECT_QCOM_MILOS_H
+
+#define MASTER_QUP_1				0
+#define MASTER_UFS_MEM				1
+#define MASTER_USB3_0				2
+#define SLAVE_A1NOC_SNOC			3
+
+#define MASTER_QDSS_BAM				0
+#define MASTER_QSPI_0				1
+#define MASTER_QUP_0				2
+#define MASTER_CRYPTO				3
+#define MASTER_IPA				4
+#define MASTER_QDSS_ETR				5
+#define MASTER_QDSS_ETR_1			6
+#define MASTER_SDCC_1				7
+#define MASTER_SDCC_2				8
+#define SLAVE_A2NOC_SNOC			9
+
+#define MASTER_QUP_CORE_0			0
+#define MASTER_QUP_CORE_1			1
+#define SLAVE_QUP_CORE_0			2
+#define SLAVE_QUP_CORE_1			3
+
+#define MASTER_CNOC_CFG				0
+#define SLAVE_AHB2PHY_SOUTH			1
+#define SLAVE_AHB2PHY_NORTH			2
+#define SLAVE_CAMERA_CFG			3
+#define SLAVE_CLK_CTL				4
+#define SLAVE_RBCPR_CX_CFG			5
+#define SLAVE_RBCPR_MXA_CFG			6
+#define SLAVE_CRYPTO_0_CFG			7
+#define SLAVE_CX_RDPM				8
+#define SLAVE_GFX3D_CFG				9
+#define SLAVE_IMEM_CFG				10
+#define SLAVE_CNOC_MSS				11
+#define SLAVE_MX_2_RDPM				12
+#define SLAVE_MX_RDPM				13
+#define SLAVE_PDM				14
+#define SLAVE_QDSS_CFG				15
+#define SLAVE_QSPI_0				16
+#define SLAVE_QUP_0				17
+#define SLAVE_QUP_1				18
+#define SLAVE_SDC1				19
+#define SLAVE_SDCC_2				20
+#define SLAVE_TCSR				21
+#define SLAVE_TLMM				22
+#define SLAVE_UFS_MEM_CFG			23
+#define SLAVE_USB3_0				24
+#define SLAVE_VENUS_CFG				25
+#define SLAVE_VSENSE_CTRL_CFG			26
+#define SLAVE_WLAN				27
+#define SLAVE_CNOC_MNOC_HF_CFG			28
+#define SLAVE_CNOC_MNOC_SF_CFG			29
+#define SLAVE_NSP_QTB_CFG			30
+#define SLAVE_PCIE_ANOC_CFG			31
+#define SLAVE_WLAN_Q6_THROTTLE_CFG		32
+#define SLAVE_SERVICE_CNOC_CFG			33
+#define SLAVE_QDSS_STM				34
+#define SLAVE_TCU				35
+
+#define MASTER_GEM_NOC_CNOC			0
+#define MASTER_GEM_NOC_PCIE_SNOC		1
+#define SLAVE_AOSS				2
+#define SLAVE_DISPLAY_CFG			3
+#define SLAVE_IPA_CFG				4
+#define SLAVE_IPC_ROUTER_CFG			5
+#define SLAVE_PCIE_0_CFG			6
+#define SLAVE_PCIE_1_CFG			7
+#define SLAVE_PRNG				8
+#define SLAVE_TME_CFG				9
+#define SLAVE_APPSS				10
+#define SLAVE_CNOC_CFG				11
+#define SLAVE_DDRSS_CFG				12
+#define SLAVE_IMEM				13
+#define SLAVE_PIMEM				14
+#define SLAVE_SERVICE_CNOC			15
+#define SLAVE_PCIE_0				16
+#define SLAVE_PCIE_1				17
+
+#define MASTER_GPU_TCU				0
+#define MASTER_SYS_TCU				1
+#define MASTER_APPSS_PROC			2
+#define MASTER_GFX3D				3
+#define MASTER_LPASS_GEM_NOC			4
+#define MASTER_MSS_PROC				5
+#define MASTER_MNOC_HF_MEM_NOC			6
+#define MASTER_MNOC_SF_MEM_NOC			7
+#define MASTER_COMPUTE_NOC			8
+#define MASTER_ANOC_PCIE_GEM_NOC		9
+#define MASTER_SNOC_GC_MEM_NOC			10
+#define MASTER_SNOC_SF_MEM_NOC			11
+#define MASTER_WLAN_Q6				12
+#define SLAVE_GEM_NOC_CNOC			13
+#define SLAVE_LLCC				14
+#define SLAVE_MEM_NOC_PCIE_SNOC			15
+
+#define MASTER_LPASS_PROC			0
+#define SLAVE_LPASS_GEM_NOC			1
+
+#define MASTER_LLCC				0
+#define SLAVE_EBI1				1
+
+#define MASTER_CAMNOC_HF			0
+#define MASTER_CAMNOC_ICP			1
+#define MASTER_CAMNOC_SF			2
+#define MASTER_MDP				3
+#define MASTER_VIDEO				4
+#define MASTER_CNOC_MNOC_HF_CFG			5
+#define MASTER_CNOC_MNOC_SF_CFG			6
+#define SLAVE_MNOC_HF_MEM_NOC			7
+#define SLAVE_MNOC_SF_MEM_NOC			8
+#define SLAVE_SERVICE_MNOC_HF			9
+#define SLAVE_SERVICE_MNOC_SF			10
+
+#define MASTER_CDSP_PROC			0
+#define SLAVE_CDSP_MEM_NOC			1
+
+#define MASTER_PCIE_ANOC_CFG			0
+#define MASTER_PCIE_0				1
+#define MASTER_PCIE_1				2
+#define SLAVE_ANOC_PCIE_GEM_NOC			3
+#define SLAVE_SERVICE_PCIE_ANOC			4
+
+#define MASTER_A1NOC_SNOC			0
+#define MASTER_A2NOC_SNOC			1
+#define MASTER_APSS_NOC				2
+#define MASTER_CNOC_SNOC			3
+#define MASTER_PIMEM				4
+#define MASTER_GIC				5
+#define SLAVE_SNOC_GEM_NOC_GC			6
+#define SLAVE_SNOC_GEM_NOC_SF			7
+
+
+#endif