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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/mailbox/
Darm,mhu.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jassi Brar <jaswinder.singh@linaro.org>
13 The ARM's Message-Handling-Unit (MHU) is a mailbox controller that has 3
22 interrupt signal using a 32-bit register, with all 32-bits logically ORed
28 interrupt. Each of the 32-bits can be used as "doorbell" to alert the remote
37 - arm,mhu
38 - arm,mhu-doorbell
40 - compatible
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/kernel/linux/linux-4.19/Documentation/devicetree/bindings/mailbox/
Darm-mhu.txt4 The ARM's Message-Handling-Unit (MHU) is a mailbox controller that has
17 --------------------
18 - compatible: Shall be "arm,mhu" & "arm,primecell"
19 - reg: Contains the mailbox register address range (base
21 - #mbox-cells Shall be 1 - the index of the channel needed.
22 - interrupts: Contains the interrupt information corresponding to
26 --------
29 #mbox-cells = <1>;
32 interrupts = <0 36 4>, /* LP-NonSecure */
33 <0 35 4>, /* HP-NonSecure */
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