xref: /linux/Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml (revision 99a7fa0e75a3a595a577fb5efa4b84a491f664a2) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/aspeed,ast2600-fmc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Aspeed SMC controllers
8
9maintainers:
10  - Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
11  - Cédric Le Goater <clg@kaod.org>
12
13description: |
14  This binding describes the Aspeed Static Memory Controllers (FMC and
15  SPI) of the AST2400, AST2500 and AST2600 SOCs.
16
17allOf:
18  - $ref: spi-controller.yaml#
19
20properties:
21  compatible:
22    enum:
23      - aspeed,ast2600-fmc
24      - aspeed,ast2600-spi
25      - aspeed,ast2500-fmc
26      - aspeed,ast2500-spi
27      - aspeed,ast2400-fmc
28      - aspeed,ast2400-spi
29
30  reg:
31    items:
32      - description: registers
33      - description: memory mapping
34
35  clocks:
36    maxItems: 1
37
38  interrupts:
39    maxItems: 1
40
41required:
42  - compatible
43  - reg
44  - clocks
45
46unevaluatedProperties: false
47
48examples:
49  - |
50    #include <dt-bindings/interrupt-controller/arm-gic.h>
51    #include <dt-bindings/interrupt-controller/aspeed-scu-ic.h>
52    #include <dt-bindings/clock/ast2600-clock.h>
53
54    spi@1e620000 {
55        reg = <0x1e620000 0xc4>, <0x20000000 0x10000000>;
56        #address-cells = <1>;
57        #size-cells = <0>;
58        compatible = "aspeed,ast2600-fmc";
59        clocks = <&syscon ASPEED_CLK_AHB>;
60        interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
61
62        flash@0 {
63                reg = < 0 >;
64                compatible = "jedec,spi-nor";
65                spi-max-frequency = <50000000>;
66                spi-rx-bus-width = <2>;
67        };
68
69        flash@1 {
70                reg = < 1 >;
71                compatible = "jedec,spi-nor";
72                spi-max-frequency = <50000000>;
73                spi-rx-bus-width = <2>;
74        };
75
76        flash@2 {
77                reg = < 2 >;
78                compatible = "jedec,spi-nor";
79                spi-max-frequency = <50000000>;
80                spi-rx-bus-width = <2>;
81        };
82    };
83