1EEPROMs (SPI) compatible with Microchip Technology 93xx46 family. 2 3Required properties: 4- compatible : shall be one of: 5 "atmel,at93c46" 6 "atmel,at93c46d" 7 "atmel,at93c56" 8 "atmel,at93c66" 9 "eeprom-93xx46" 10 "microchip,93lc46b" 11- data-size : number of data bits per word (either 8 or 16) 12 13Optional properties: 14- read-only : parameter-less property which disables writes to the EEPROM 15- select-gpios : if present, specifies the GPIO that will be asserted prior to 16 each access to the EEPROM (e.g. for SPI bus multiplexing) 17 18Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt 19apply. In particular, "reg" and "spi-max-frequency" properties must be given. 20 21Example: 22 eeprom@0 { 23 compatible = "eeprom-93xx46"; 24 reg = <0>; 25 spi-max-frequency = <1000000>; 26 spi-cs-high; 27 data-size = <8>; 28 select-gpios = <&gpio4 4 GPIO_ACTIVE_HIGH>; 29 }; 30