| * MTD SPI driver for ST M25Pxx (and similar) serial flash chips |
| |
| Required properties: |
| - #address-cells, #size-cells : Must be present if the device has sub-nodes |
| representing partitions. |
| - compatible : May include a device-specific string consisting of the |
| manufacturer and name of the chip. Bear in mind the DT binding |
| is not Linux-only, but in case of Linux, see the "m25p_ids" |
| table in drivers/mtd/devices/m25p80.c for the list of supported |
| chips. |
| Must also include "jedec,spi-nor" for any SPI NOR flash that can |
| be identified by the JEDEC READ ID opcode (0x9F). |
| - reg : Chip-Select number |
| - spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at |
| |
| Optional properties: |
| - m25p,fast-read : Use the "fast read" opcode to read data from the chip instead |
| of the usual "read" opcode. This opcode is not supported by |
| all chips and support for it can not be detected at runtime. |
| Refer to your chips' datasheet to check if this is supported |
| by your chip. |
| |
| Example: |
| |
| flash: m25p80@0 { |
| #address-cells = <1>; |
| #size-cells = <1>; |
| compatible = "spansion,m25p80", "jedec,spi-nor"; |
| reg = <0>; |
| spi-max-frequency = <40000000>; |
| m25p,fast-read; |
| }; |
