30 lines
1.1 KiB
Text
30 lines
1.1 KiB
Text
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* MTD SPI driver for ST M25Pxx (and similar) serial flash chips
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Required properties:
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- #address-cells, #size-cells : Must be present if the device has sub-nodes
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representing partitions.
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- compatible : Should be the manufacturer and the name of the chip. Bear in mind
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the DT binding is not Linux-only, but in case of Linux, see the
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"spi_nor_ids" table in drivers/mtd/spi-nor/spi-nor.c for the list
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of supported chips.
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- reg : Chip-Select number
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- spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at
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Optional properties:
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- m25p,fast-read : Use the "fast read" opcode to read data from the chip instead
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of the usual "read" opcode. This opcode is not supported by
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all chips and support for it can not be detected at runtime.
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Refer to your chips' datasheet to check if this is supported
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by your chip.
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Example:
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flash: m25p80@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "spansion,m25p80";
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reg = <0>;
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spi-max-frequency = <40000000>;
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m25p,fast-read;
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};
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