summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/arm/trbe.yaml
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2021-05-17 13:27:45 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2021-05-17 16:23:06 +0200
commita5a4c1d5a3c4f89059fb612b5786ec8b61b959f1 (patch)
treefe87198c6cc02e54d3131d087d2b9f7c3e96c689 /dts/Bindings/arm/trbe.yaml
parentba9de18c5f211678f5d0f67a0758c632ab774cca (diff)
downloadbarebox-a5a4c1d5a3c4f89059fb612b5786ec8b61b959f1.tar.gz
barebox-a5a4c1d5a3c4f89059fb612b5786ec8b61b959f1.tar.xz
dts: update to v5.13-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/arm/trbe.yaml')
-rw-r--r--dts/Bindings/arm/trbe.yaml49
1 files changed, 49 insertions, 0 deletions
diff --git a/dts/Bindings/arm/trbe.yaml b/dts/Bindings/arm/trbe.yaml
new file mode 100644
index 0000000000..4402d7bfd1
--- /dev/null
+++ b/dts/Bindings/arm/trbe.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+# Copyright 2021, Arm Ltd
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/trbe.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: ARM Trace Buffer Extensions
+
+maintainers:
+ - Anshuman Khandual <anshuman.khandual@arm.com>
+
+description: |
+ Arm Trace Buffer Extension (TRBE) is a per CPU component
+ for storing trace generated on the CPU to memory. It is
+ accessed via CPU system registers. The software can verify
+ if it is permitted to use the component by checking the
+ TRBIDR register.
+
+properties:
+ $nodename:
+ const: "trbe"
+ compatible:
+ items:
+ - const: arm,trace-buffer-extension
+
+ interrupts:
+ description: |
+ Exactly 1 PPI must be listed. For heterogeneous systems where
+ TRBE is only supported on a subset of the CPUs, please consult
+ the arm,gic-v3 binding for details on describing a PPI partition.
+ maxItems: 1
+
+required:
+ - compatible
+ - interrupts
+
+additionalProperties: false
+
+examples:
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ trbe {
+ compatible = "arm,trace-buffer-extension";
+ interrupts = <GIC_PPI 15 IRQ_TYPE_LEVEL_HIGH>;
+ };
+...