From 9ed030d728f3bd03b6e869357da02725afda19a7 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 17 Nov 2010 13:00:48 +0100 Subject: misc/at24: parse device tree data 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 Signed-off-by: Grant Likely --- Documentation/powerpc/dts-bindings/eeprom.txt | 28 +++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/powerpc/dts-bindings/eeprom.txt (limited to 'Documentation/powerpc') diff --git a/Documentation/powerpc/dts-bindings/eeprom.txt b/Documentation/powerpc/dts-bindings/eeprom.txt new file mode 100644 index 000000000000..4342c10de1bf --- /dev/null +++ b/Documentation/powerpc/dts-bindings/eeprom.txt @@ -0,0 +1,28 @@ +EEPROMs (I2C) + +Required properties: + + - compatible : should be "," + If there is no specific driver for , a generic + driver based on 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>; +}; -- cgit v1.2.3