Add new document for apu logger compatible.
Signed-off-by: Flora Fu flora.fu@mediatek.com
--- .../soc/mediatek/mediatek,apu-logger.yaml | 42 +++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,apu-logger.yaml
diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,apu-logger.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,apu-logger.yaml new file mode 100644 index 000000000000..9e56fb3b8080 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,apu-logger.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright 2021 (C) MediaTek Inc. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/soc/mediatek/mediatek,apu-logger.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: MediaTek APU Logger for debug into microprocessor + +description: | + The APU logger is for debug usage. The APU remote microprocessor's logs + will be output to the mapped memory and application processor can read + logs from the dedicated reserved registers. + +maintainers: + - Flora Fu flora.fu@mediatek.com + +properties: + compatible: + items: + - enum: + - mediatek,apu-sw-logger + reg: + maxItems: 1 + + iommus: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/memory/mt8192-larb-port.h> + apusys_sw_logger@19000040 { + compatible = "mediatek,apu-sw-logger"; + reg = <0x19000040 0x10>; + iommus = <&iommu_apu IOMMU_PORT_APU_DATA>; + };