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dt-bindings: arm: Add Arm C1 cores and PMUs

PATCH Applied Rob Herring (Arm) 1 participant 2 messages Sep 15, 2025 – Sep 18, 2025

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Device tree bindings Arm PMU profiling and debugging
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Rob Herring (Arm)

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PATCH 1/1 dt-bindings: arm: Add Arm C1 cores and PMUs

Add the newly introduced Arm C1-Nano/Pro/Premium/Ultra core and PMU compatible strings. These cores are part of the Lumex CSS. The new names are replacing the long lived Cortex-A/X branding going forward.

Signed-off-by Rob Herring (Arm) <[email protected]>
---
 Documentation/devicetree/bindings/arm/cpus.yaml | 4 ++++
 Documentation/devicetree/bindings/arm/pmu.yaml  | 4 ++++
 2 files changed, 8 insertions(+)
Documentation/devicetree/bindings/arm/cpus.yaml +4 -0
index 41ad4ed0e74c..c1036dcfc912 100644
@@ -123,6 +123,10 @@ properties:
       - arm,arm1176jzf-s
       - arm,arm11mpcore
       - arm,armv8 # Only for s/w models
+      - arm,c1-nano
+      - arm,c1-premium
+      - arm,c1-pro
+      - arm,c1-ultra
       - arm,cortex-a5
       - arm,cortex-a7
       - arm,cortex-a8
Documentation/devicetree/bindings/arm/pmu.yaml +4 -0
index 9bb109e947dd..f47baaefcdac 100644
@@ -28,6 +28,10 @@ properties:
           - arm,arm1136-pmu
           - arm,arm1176-pmu
           - arm,arm11mpcore-pmu
+          - arm,c1-nano-pmu
+          - arm,c1-premium-pmu
+          - arm,c1-pro-pmu
+          - arm,c1-ultra-pmu
           - arm,cortex-a5-pmu
           - arm,cortex-a7-pmu
           - arm,cortex-a8-pmu
Signature · 1 line
2.51.0
author maintainer Applied
#1 lore raw
Quoted 10 lines · Rob Herring (Arm)

Add the newly introduced Arm C1-Nano/Pro/Premium/Ultra core and PMU compatible strings. These cores are part of the Lumex CSS. The new names are replacing the long lived Cortex-A/X branding going forward.

Signed-off-by Rob Herring (Arm) <[email protected]>
---
 Documentation/devicetree/bindings/arm/cpus.yaml | 4 ++++
 Documentation/devicetree/bindings/arm/pmu.yaml  | 4 ++++
 2 files changed, 8 insertions(+)

Applied, thanks!