forked from Minki/linux
9ed030d728
Information about the pagesize and read-only-status may also come from the devicetree. Parse this data, too, and act accordingly. While we are here, change the initialization printout a bit. write_max is useful to know to detect performance bottlenecks, the rest is superfluous. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
29 lines
801 B
Plaintext
29 lines
801 B
Plaintext
EEPROMs (I2C)
|
|
|
|
Required properties:
|
|
|
|
- compatible : should be "<manufacturer>,<type>"
|
|
If there is no specific driver for <manufacturer>, a generic
|
|
driver based on <type> is selected. Possible types are:
|
|
24c00, 24c01, 24c02, 24c04, 24c08, 24c16, 24c32, 24c64,
|
|
24c128, 24c256, 24c512, 24c1024, spd
|
|
|
|
- reg : the I2C address of the EEPROM
|
|
|
|
Optional properties:
|
|
|
|
- pagesize : the length of the pagesize for writing. Please consult the
|
|
manual of your device, that value varies a lot. A wrong value
|
|
may result in data loss! If not specified, a safety value of
|
|
'1' is used which will be very slow.
|
|
|
|
- read-only: this parameterless property disables writes to the eeprom
|
|
|
|
Example:
|
|
|
|
eeprom@52 {
|
|
compatible = "atmel,24c32";
|
|
reg = <0x52>;
|
|
pagesize = <32>;
|
|
};
|