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1* Serial NOR flash controller for MTK MT81xx (and similar)
2
3Required properties:
4- compatible: should be "mediatek,mt8173-nor";
5- reg: physical base address and length of the controller's register
6- clocks: the phandle of the clocks needed by the nor controller
7- clock-names: the names of the clocks
8 the clocks should be named "spi" and "sf". "spi" is used for spi bus,
9 and "sf" is used for controller, these are the clocks witch
10 hardware needs to enabling nor flash and nor flash controller.
11 See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
12- #address-cells: should be <1>
13- #size-cells: should be <0>
14
15The SPI flash must be a child of the nor_flash node and must have a
16compatible property. Also see jedec,spi-nor.txt.
17
18Required properties:
19- compatible: May include a device-specific string consisting of the manufacturer
20 and name of the chip. Must also include "jedec,spi-nor" for any
21 SPI NOR flash that can be identified by the JEDEC READ ID opcode (0x9F).
22- reg : Chip-Select number
23
24Example:
25
26nor_flash: spi@1100d000 {
27 compatible = "mediatek,mt8173-nor";
28 reg = <0 0x1100d000 0 0xe0>;
29 clocks = <&pericfg CLK_PERI_SPI>,
30 <&topckgen CLK_TOP_SPINFI_IFR_SEL>;
31 clock-names = "spi", "sf";
32 #address-cells = <1>;
33 #size-cells = <0>;
34 status = "disabled";
35
36 flash@0 {
37 compatible = "jedec,spi-nor";
38 reg = <0>;
39 };
40};
41