bindings/interrupt-controller/riscv%2Caplic.yaml

4 $id: http://devicetree.org/schemas/interrupt-controller/riscv,aplic.yaml#
7 title: RISC-V Advanced Platform Level Interrupt Controller (APLIC)
14   platform level interrupt controller (APLIC) for handling wired interrupts
18   The RISC-V APLIC is implemented as hierarchical APLIC domains where all
19   interrupt sources connect to the root APLIC domain and a parent APLIC
20   domain can delegate interrupt sources to it's child APLIC domains. There
21   is one device tree node for each APLIC domain.
30           - qemu,aplic
31       - const: riscv,aplic
45       Given APLIC domain directly injects external interrupts to a set of
51       Given APLIC domain forwards wired interrupts as MSIs to a AIA incoming
53       "interrupts-extended" properties are present then it means the APLIC
55       APLIC driver has to choose between MSI mode or Direct mode.
63       APLIC domain.
72       A list of child APLIC domains for the given APLIC domain. Each child
73       APLIC domain is assigned a child index in increasing order, with the
74       first child APLIC domain assigned child index 0. The APLIC domain child
75       index is used by firmware to delegate interrupts from the given APLIC
76       domain to a particular child APLIC domain.
84         - description: child APLIC domain phandle
85         - description: first interrupt number of the parent APLIC domain (inclusive)
86         - description: last interrupt number of the parent APLIC domain (inclusive)
89       of child APLIC domain phandle, first interrupt number of the parent
90       APLIC domain, and last interrupt number of the parent APLIC domain.
114     // Example 1 (APLIC domains directly injecting interrupt to HARTs):
117       compatible = "qemu,aplic", "riscv,aplic";
131       compatible = "qemu,aplic", "riscv,aplic";
141       compatible = "qemu,aplic", "riscv,aplic";
151     // Example 2 (APLIC domains forwarding interrupts as MSIs):
154       compatible = "qemu,aplic", "riscv,aplic";
165       compatible = "qemu,aplic", "riscv,aplic";