dt-bindings: arm: Convert CoreSight bindings to DT schema

Each CoreSight component has slightly different requirements and
nothing applies to every component, so each CoreSight component has its
own schema document.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20220603011933.3277315-3-robh@kernel.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

14 files changed, 1107 insertions, 406 deletions

diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-catu.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-catu.yaml
new file mode 100644
index 000000000000..d783d9276124
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-catu.yaml
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-catu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm Coresight Address Translation Unit (CATU)
+
+maintainers:
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+  - Mike Leach <mike.leach@linaro.org>
+  - Leo Yan <leo.yan@linaro.org>
+  - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+  CoreSight components are compliant with the ARM CoreSight architecture
+  specification and can be connected in various topologies to suit a particular
+  SoCs tracing needs. These trace components can generally be classified as
+  sinks, links and sources. Trace data produced by one or more sources flows
+  through the intermediate links connecting the source to the currently selected
+  sink.
+
+  The CoreSight Address Translation Unit (CATU) translates addresses between an
+  AXI master and system memory. The CATU is normally used along with the TMC to
+  implement scattering of virtual trace buffers in physical memory. The CATU
+  translates contiguous Virtual Addresses (VAs) from an AXI master into
+  non-contiguous Physical Addresses (PAs) that are intended for system memory.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+  properties:
+    compatible:
+      contains:
+        const: arm,coresight-catu
+  required:
+    - compatible
+
+allOf:
+  - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: arm,coresight-catu
+      - const: arm,primecell
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: apb_pclk
+      - const: atclk
+
+  interrupts:
+    maxItems: 1
+    description: Address translation error interrupt
+
+  in-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    additionalProperties: false
+
+    properties:
+      port:
+        description: AXI Slave connected to another Coresight component
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - in-ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    catu@207e0000 {
+        compatible = "arm,coresight-catu", "arm,primecell";
+        reg = <0x207e0000 0x1000>;
+
+        clocks = <&oscclk6a>;
+        clock-names = "apb_pclk";
+
+        interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+        in-ports {
+            port {
+                catu_in_port: endpoint {
+                    remote-endpoint = <&etr_out_port>;
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
index d32d214ed64e..72ffe4d1e948 100644
--- a/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
@@ -12,8 +12,7 @@ description: |
   to one or more CoreSight components and/or a CPU, with CTIs interconnected in
   a star topology via the Cross Trigger Matrix (CTM), which is not programmable.
   The ECT components are not part of the trace generation data path and are thus
-  not part of the CoreSight graph described in the general CoreSight bindings
-  file coresight.txt.
+  not part of the CoreSight graph.
 
   The CTI component properties define the connections between the individual
   CTI and the components it is directly connected to, consisting of input and
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
new file mode 100644
index 000000000000..1eeedc22857c
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-dynamic-funnel.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Programmable Trace Bus Funnel
+
+maintainers:
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+  - Mike Leach <mike.leach@linaro.org>
+  - Leo Yan <leo.yan@linaro.org>
+  - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+  CoreSight components are compliant with the ARM CoreSight architecture
+  specification and can be connected in various topologies to suit a particular
+  SoCs tracing needs. These trace components can generally be classified as
+  sinks, links and sources. Trace data produced by one or more sources flows
+  through the intermediate links connecting the source to the currently selected
+  sink.
+
+  The Coresight funnel merges 2-8 trace sources into a single trace
+  stream with programmable enable and priority of input ports.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+  properties:
+    compatible:
+      contains:
+        const: arm,coresight-dynamic-funnel
+  required:
+    - compatible
+
+allOf:
+  - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: arm,coresight-dynamic-funnel
+      - const: arm,primecell
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: apb_pclk
+      - const: atclk
+
+  in-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    patternProperties:
+      '^port(@[0-7])?$':
+        description: Input connections from CoreSight Trace bus
+        $ref: /schemas/graph.yaml#/properties/port
+
+  out-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    additionalProperties: false
+
+    properties:
+      port:
+        description: Output connection to CoreSight Trace bus
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - in-ports
+  - out-ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    funnel@20040000 {
+        compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+        reg = <0x20040000 0x1000>;
+
+        clocks = <&oscclk6a>;
+        clock-names = "apb_pclk";
+        out-ports {
+            port {
+                funnel_out_port0: endpoint {
+                    remote-endpoint = <&replicator_in_port0>;
+                };
+            };
+        };
+
+        in-ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                funnel_in_port0: endpoint {
+                    remote-endpoint = <&ptm0_out_port>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                funnel_in_port1: endpoint {
+                    remote-endpoint = <&ptm1_out_port>;
+                };
+            };
+
+            port@2 {
+                reg = <2>;
+                funnel_in_port2: endpoint {
+                    remote-endpoint = <&etm0_out_port>;
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml
new file mode 100644
index 000000000000..a26ed9214e00
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-dynamic-replicator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm Coresight Programmable Trace Bus Replicator
+
+maintainers:
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+  - Mike Leach <mike.leach@linaro.org>
+  - Leo Yan <leo.yan@linaro.org>
+  - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+  CoreSight components are compliant with the ARM CoreSight architecture
+  specification and can be connected in various topologies to suit a particular
+  SoCs tracing needs. These trace components can generally be classified as
+  sinks, links and sources. Trace data produced by one or more sources flows
+  through the intermediate links connecting the source to the currently selected
+  sink.
+
+  The Coresight replicator splits a single trace stream into two trace streams
+  for systems that have more than one trace sink component.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+  properties:
+    compatible:
+      contains:
+        const: arm,coresight-dynamic-replicator
+  required:
+    - compatible
+
+allOf:
+  - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: arm,coresight-dynamic-replicator
+      - const: arm,primecell
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: apb_pclk
+      - const: atclk
+
+  qcom,replicator-loses-context:
+    type: boolean
+    description:
+      Indicates that the replicator will lose register context when AMBA clock
+      is removed which is observed in some replicator designs.
+
+  in-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    additionalProperties: false
+
+    properties:
+      port:
+        description: Input connection from CoreSight Trace bus
+        $ref: /schemas/graph.yaml#/properties/port
+
+  out-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    patternProperties:
+      '^port(@[01])?$':
+        description: Output connections to CoreSight Trace bus
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - in-ports
+  - out-ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    replicator@20120000 {
+        compatible = "arm,coresight-dynamic-replicator", "arm,primecell";
+        reg = <0x20120000 0x1000>;
+
+        clocks = <&soc_smc50mhz>;
+        clock-names = "apb_pclk";
+
+        out-ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            /* replicator output ports */
+            port@0 {
+                reg = <0>;
+                replicator_out_port0: endpoint {
+                    remote-endpoint = <&tpiu_in_port>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                replicator_out_port1: endpoint {
+                    remote-endpoint = <&etr_in_port>;
+                };
+            };
+        };
+        in-ports {
+            port {
+                replicator_in_port0: endpoint {
+                    remote-endpoint = <&csys2_funnel_out_port>;
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml
new file mode 100644
index 000000000000..fd06ede26ceb
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-etb10.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Embedded Trace Buffer
+
+maintainers:
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+  - Mike Leach <mike.leach@linaro.org>
+  - Leo Yan <leo.yan@linaro.org>
+  - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+  CoreSight components are compliant with the ARM CoreSight architecture
+  specification and can be connected in various topologies to suit a particular
+  SoCs tracing needs. These trace components can generally be classified as
+  sinks, links and sources. Trace data produced by one or more sources flows
+  through the intermediate links connecting the source to the currently selected
+  sink.
+
+  The CoreSight Embedded Trace Buffer stores traces in a dedicated SRAM that is
+  used as a circular buffer.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+  properties:
+    compatible:
+      contains:
+        const: arm,coresight-etb10
+  required:
+    - compatible
+
+allOf:
+  - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: arm,coresight-etb10
+      - const: arm,primecell
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: apb_pclk
+      - const: atclk
+
+  in-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    additionalProperties: false
+
+    properties:
+      port:
+        description: Input connection from CoreSight Trace bus.
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - in-ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    etb@20010000 {
+        compatible = "arm,coresight-etb10", "arm,primecell";
+        reg = <0x20010000 0x1000>;
+
+        clocks = <&oscclk6a>;
+        clock-names = "apb_pclk";
+        in-ports {
+            port {
+                etb_in_port: endpoint {
+                    remote-endpoint = <&replicator_out_port0>;
+                };
+            };
+        };
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
new file mode 100644
index 000000000000..e0377ce48537
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
@@ -0,0 +1,156 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-etm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Embedded Trace MacroCell
+
+maintainers:
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+  - Mike Leach <mike.leach@linaro.org>
+  - Leo Yan <leo.yan@linaro.org>
+  - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+  CoreSight components are compliant with the ARM CoreSight architecture
+  specification and can be connected in various topologies to suit a particular
+  SoCs tracing needs. These trace components can generally be classified as
+  sinks, links and sources. Trace data produced by one or more sources flows
+  through the intermediate links connecting the source to the currently selected
+  sink.
+
+  The Embedded Trace Macrocell (ETM) is a real-time trace module providing
+  instruction and data tracing of a processor.
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - arm,coresight-etm3x
+          - arm,coresight-etm4x
+          - arm,coresight-etm4x-sysreg
+  required:
+    - compatible
+
+allOf:
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: arm,coresight-etm4x-sysreg
+    then:
+      $ref: /schemas/arm/primecell.yaml#
+      required:
+        - reg
+
+properties:
+  compatible:
+    oneOf:
+      - description:
+          Embedded Trace Macrocell with memory mapped access.
+        items:
+          - enum:
+              - arm,coresight-etm3x
+              - arm,coresight-etm4x
+          - const: arm,primecell
+      - description:
+          Embedded Trace Macrocell (version 4.x), with system register access only
+        const: arm,coresight-etm4x-sysreg
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: apb_pclk
+      - const: atclk
+
+  arm,coresight-loses-context-with-cpu:
+    type: boolean
+    description:
+      Indicates that the hardware will lose register context on CPU power down
+      (e.g. CPUIdle). An example of where this may be needed are systems which
+      contain a coresight component and CPU in the same power domain. When the
+      CPU powers down the coresight component also powers down and loses its
+      context.
+
+  arm,cp14:
+    type: boolean
+    description:
+      Must be present if the system accesses ETM/PTM management registers via
+      co-processor 14.
+
+  qcom,skip-power-up:
+    type: boolean
+    description:
+      Indicates that an implementation can skip powering up the trace unit.
+      TRCPDCR.PU does not have to be set on Qualcomm Technologies Inc. systems
+      since ETMs are in the same power domain as their CPU cores. This property
+      is required to identify such systems with hardware errata where the CPU
+      watchdog counter is stopped when TRCPDCR.PU is set.
+
+  cpu:
+    description:
+      phandle to the cpu this ETM is bound to.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+  out-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    additionalProperties: false
+
+    properties:
+      port:
+        description: Output connection from the ETM to CoreSight Trace bus.
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - cpu
+  - out-ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    ptm@2201c000 {
+        compatible = "arm,coresight-etm3x", "arm,primecell";
+        reg = <0x2201c000 0x1000>;
+
+        cpu = <&cpu0>;
+        clocks = <&oscclk6a>;
+        clock-names = "apb_pclk";
+        out-ports {
+            port {
+                ptm0_out_port: endpoint {
+                    remote-endpoint = <&funnel_in_port0>;
+                };
+            };
+        };
+    };
+
+    ptm@2201d000 {
+        compatible = "arm,coresight-etm3x", "arm,primecell";
+        reg = <0x2201d000 0x1000>;
+
+        cpu = <&cpu1>;
+        clocks = <&oscclk6a>;
+        clock-names = "apb_pclk";
+        out-ports {
+            port {
+                ptm1_out_port: endpoint {
+                    remote-endpoint = <&funnel_in_port1>;
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml
new file mode 100644
index 000000000000..374083956b20
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-static-funnel.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Static Trace Bus Funnel
+
+maintainers:
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+  - Mike Leach <mike.leach@linaro.org>
+  - Leo Yan <leo.yan@linaro.org>
+  - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+  CoreSight components are compliant with the ARM CoreSight architecture
+  specification and can be connected in various topologies to suit a particular
+  SoCs tracing needs. These trace components can generally be classified as
+  sinks, links and sources. Trace data produced by one or more sources flows
+  through the intermediate links connecting the source to the currently selected
+  sink.
+
+  The Coresight static funnel merges 2-8 trace sources into a single trace
+  stream.
+
+properties:
+  compatible:
+    const: arm,coresight-static-funnel
+
+  in-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    patternProperties:
+      '^port@[0-7]$':
+        description: Input connections from CoreSight Trace bus
+        $ref: /schemas/graph.yaml#/properties/port
+
+  out-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    additionalProperties: false
+
+    properties:
+      port:
+        description: Output connection to CoreSight Trace bus
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - in-ports
+  - out-ports
+
+additionalProperties: false
+
+examples:
+  - |
+    funnel {
+        /*
+         * non-configurable replicators don't show up on the
+         * AMBA bus.  As such no need to add "arm,primecell".
+         */
+        compatible = "arm,coresight-static-funnel";
+
+        out-ports {
+            port {
+                combo_funnel_out: endpoint {
+                    remote-endpoint = <&top_funnel_in>;
+                };
+            };
+        };
+
+        in-ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                combo_funnel_in0: endpoint {
+                    remote-endpoint = <&cluster0_etf_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                combo_funnel_in1: endpoint {
+                    remote-endpoint = <&cluster1_etf_out>;
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
new file mode 100644
index 000000000000..a34d8583830c
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-static-replicator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Static Trace Bus Replicator
+
+maintainers:
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+  - Mike Leach <mike.leach@linaro.org>
+  - Leo Yan <leo.yan@linaro.org>
+  - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+  CoreSight components are compliant with the ARM CoreSight architecture
+  specification and can be connected in various topologies to suit a particular
+  SoCs tracing needs. These trace components can generally be classified as
+  sinks, links and sources. Trace data produced by one or more sources flows
+  through the intermediate links connecting the source to the currently selected
+  sink.
+
+  The Coresight replicator splits a single trace stream into two trace streams
+  for systems that have more than one trace sink component.
+
+properties:
+  compatible:
+    const: arm,coresight-static-replicator
+
+  in-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    additionalProperties: false
+
+    properties:
+      port:
+        description: Input connection from CoreSight Trace bus
+        $ref: /schemas/graph.yaml#/properties/port
+
+  out-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    patternProperties:
+      '^port@[01]$':
+        description: Output connections to CoreSight Trace bus
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - in-ports
+  - out-ports
+
+additionalProperties: false
+
+examples:
+  - |
+    replicator {
+        /*
+         * non-configurable replicators don't show up on the
+         * AMBA bus.  As such no need to add "arm,primecell".
+         */
+        compatible = "arm,coresight-static-replicator";
+
+        out-ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            /* replicator output ports */
+            port@0 {
+                reg = <0>;
+                replicator_out_port0: endpoint {
+                    remote-endpoint = <&etb_in_port>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                replicator_out_port1: endpoint {
+                    remote-endpoint = <&tpiu_in_port>;
+                };
+            };
+        };
+
+        in-ports {
+            port {
+                replicator_in_port0: endpoint {
+                    remote-endpoint = <&funnel_out_port0>;
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml
new file mode 100644
index 000000000000..905008faa012
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-stm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight System Trace MacroCell
+
+maintainers:
+  - Mathieu Poirier <mathieu.poirier@linaro.org>
+  - Mike Leach <mike.leach@linaro.org>
+  - Leo Yan <leo.yan@linaro.org>
+  - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+  CoreSight components are compliant with the ARM CoreSight architecture
+  specification and can be connected in various topologies to suit a particular
+  SoCs tracing needs. These trace components can generally be classified as
+  sinks, links and sources. Trace data produced by one or more sources flows
+  through the intermediate links connecting the source to the currently selected
+  sink.
+
+  The STM is a trace source that is integrated into a CoreSight system, designed
+  primarily for high-bandwidth trace of instrumentation embedded into software.
+  This instrumentation is made up of memory-mapped writes to the STM Advanced
+  eXtensible Interface (AXI) slave, which carry information about the behavior
+  of the software.
+
+select:
+  properties:
+    compatible:
+      contains:
+        const: arm,coresight-stm
+  required:
+    - compatible
+
+allOf:
+  - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: arm,coresight-stm
+      - const: arm,primecell
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: stm-base
+      - const: stm-stimulus-base
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: apb_pclk
+      - const: atclk
+
+  out-ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    additionalProperties: false
+
+    properties:
+      port:
+        description: Output connection to the CoreSight Trace bus.
+        $ref: /schemas/graph.yaml#/properties/port
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - out-ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    stm@20100000 {
+        compatible = "arm,coresight-stm", "arm,primecell";
+        reg = <0x20100000 0x1000>,
+              <0x28000000 0x180000>;
+        reg-names = "stm-base", "stm-stimulus-base";
+
+        clocks = <&soc_smc50mhz>;
+        clock-names = "apb_pclk";
+        out-ports {
+            port {
+                stm_out_port: endpoint {
+                    remote-endpoint = <&main_funnel_in_port2>;
+                };
+            };
+        };
+    };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
new file mode 100644
index 000000000000..3463b6e53aef
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
@@ -0,0 +1,131 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-tmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Trace Memory Controller
+
+mainta