1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/spi/rockchip-sfc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Rockchip Serial Flash Controller (SFC)
8
9 maintainers:
10 - Heiko Stuebner <heiko@sntech.de>
11 - Chris Morgan <macromorgan@hotmail.com>
12
13 allOf:
14 - $ref: spi-controller.yaml#
15
16 properties:
17 compatible:
18 const: rockchip,sfc
19 description:
20 The rockchip sfc controller is a standalone IP with version register,
21 and the driver can handle all the feature difference inside the IP
22 depending on the version register.
23
24 reg:
25 maxItems: 1
26
27 interrupts:
28 maxItems: 1
29
30 clocks:
31 items:
32 - description: Bus Clock
33 - description: Module Clock
34
35 clock-names:
36 items:
37 - const: clk_sfc
38 - const: hclk_sfc
39
40 power-domains:
41 maxItems: 1
42
43 rockchip,sfc-no-dma:
44 description: Disable DMA and utilize FIFO mode only
45 type: boolean
46
47 patternProperties:
48 "^flash@[0-3]$":
49 type: object
50 additionalProperties: true
51
52 properties:
53 reg:
54 minimum: 0
55 maximum: 3
56
57 required:
58 - compatible
59 - reg
60 - interrupts
61 - clocks
62 - clock-names
63
64 unevaluatedProperties: false
65
66 examples:
67 - |
68 #include <dt-bindings/clock/px30-cru.h>
69 #include <dt-bindings/interrupt-controller/arm-gic.h>
70 #include <dt-bindings/power/px30-power.h>
71
72 sfc: spi@ff3a0000 {
73 compatible = "rockchip,sfc";
74 reg = <0xff3a0000 0x4000>;
75 interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
76 clocks = <&cru SCLK_SFC>, <&cru HCLK_SFC>;
77 clock-names = "clk_sfc", "hclk_sfc";
78 pinctrl-0 = <&sfc_clk &sfc_cs &sfc_bus2>;
79 pinctrl-names = "default";
80 power-domains = <&power PX30_PD_MMC_NAND>;
81 #address-cells = <1>;
82 #size-cells = <0>;
83
84 flash@0 {
85 compatible = "jedec,spi-nor";
86 reg = <0>;
87 spi-max-frequency = <108000000>;
88 spi-rx-bus-width = <2>;
89 spi-tx-bus-width = <2>;
90 };
91 };
92
93 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.