diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2014-03-25 11:48:46 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-03-27 18:53:16 +0100 |
| commit | 1b5b23718b8460b1627d3aeb4aa8ab04170e53f7 (patch) | |
| tree | 632efdeae91f453961148bdae1444bdc8d1025bc /Documentation/devicetree | |
| parent | 0ff83d2cad1ad584bd5df639750f90bd6b09055c (diff) | |
| download | op-kernel-dev-1b5b23718b8460b1627d3aeb4aa8ab04170e53f7.zip op-kernel-dev-1b5b23718b8460b1627d3aeb4aa8ab04170e53f7.tar.gz | |
i2c: efm32: new bus driver
This was tested on a EFM32GG-DK3750 devboard that has a temperature
sensor and an eeprom on its i2c bus.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-efm32.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-efm32.txt b/Documentation/devicetree/bindings/i2c/i2c-efm32.txt new file mode 100644 index 0000000..ead4dd3 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-efm32.txt @@ -0,0 +1,34 @@ +* Energymicro efm32 i2c controller + +Required properties : + + - reg : Offset and length of the register set for the device + - compatible : should be "efm32,i2c" + - interrupts : the interrupt number + - clocks : reference to the module clock + +Recommended properties : + + - clock-frequency : maximal I2C bus clock frequency in Hz. + - efm32,location : Decides the location of the USART I/O pins. + Allowed range : [0 .. 6] + +Example: + i2c0: i2c@4000a000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "efm32,i2c"; + reg = <0x4000a000 0x400>; + interrupts = <9>; + clocks = <&cmu clk_HFPERCLKI2C0>; + clock-frequency = <100000>; + status = "disabled"; + efm32,location = <3>; + + eeprom@50 { + compatible = "microchip,24c02"; + reg = <0x50>; + pagesize = <16>; + }; + }; + |
