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-rw-r--r--Documentation/devicetree/bindings/mips/mti,mips-cm.yaml47
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mips/mti,mips-cm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MIPS Coherence Manager
+
+description:
+ The Coherence Manager (CM) is responsible for establishing the
+ global ordering of requests from all elements of the system and
+ sending the correct data back to the requester. It supports Cache
+ to Cache transfers.
+ https://training.mips.com/cps_mips/PDF/CPS_Introduction.pdf
+ https://training.mips.com/cps_mips/PDF/Coherency_Manager.pdf
+
+maintainers:
+ - Jiaxun Yang <jiaxun.yang@flygoat.com>
+
+properties:
+ compatible:
+ const: mti,mips-cm
+
+ reg:
+ description:
+ Base address and size of the Global Configuration Registers
+ referred to as CMGCR.They are the system programmer's interface
+ to the Coherency Manager. Their location in the memory map is
+ determined at core build time. In a functional system, the base
+ address is provided by the Coprocessor 0, but some
+ System-on-Chip (SoC) designs may not provide an accurate address
+ that needs to be described statically.
+
+ maxItems: 1
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ coherency-manager@1fbf8000 {
+ compatible = "mti,mips-cm";
+ reg = <0x1bde8000 0x8000>;
+ };
+...