xref: /linux/Documentation/devicetree/bindings/memory-controllers/renesas,dbsc.yaml (revision 6607aa6f6b68fc9b5955755f1b1be125cf2a9d03) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: "http://devicetree.org/schemas/memory-controllers/renesas,dbsc.yaml#"
5$schema: "http://devicetree.org/meta-schemas/core.yaml#"
6
7title: Renesas DDR Bus Controllers
8
9maintainers:
10  - Geert Uytterhoeven <geert+renesas@glider.be>
11
12description: |
13  Renesas SoCs contain one or more memory controllers.  These memory
14  controllers differ from one SoC variant to another, and are called by
15  different names, e.g. "DDR Bus Controller (DBSC)", "DDR3 Bus State Controller
16  (DBSC3)", or "SDRAM Bus State Controller (SBSC)").
17
18properties:
19  compatible:
20    enum:
21      - renesas,dbsc-r8a73a4  # R-Mobile APE6
22      - renesas,dbsc3-r8a7740 # R-Mobile A1
23      - renesas,sbsc-sh73a0   # SH-Mobile AG5
24
25  reg:
26    maxItems: 1
27
28  interrupts:
29    maxItems: 2
30
31  interrupt-names:
32    items:
33      - const: sec  # secure interrupt
34      - const: temp # normal (temperature) interrupt
35
36  power-domains:
37    maxItems: 1
38
39required:
40  - compatible
41  - reg
42  - power-domains
43
44additionalProperties: false
45
46examples:
47  - |
48    #include <dt-bindings/interrupt-controller/arm-gic.h>
49    sbsc1: memory-controller@fe400000 {
50            compatible = "renesas,sbsc-sh73a0";
51            reg = <0xfe400000 0x400>;
52            interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
53                         <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
54            interrupt-names = "sec", "temp";
55            power-domains = <&pd_a4bc0>;
56    };
57