diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/atmel-i2c.txt | 30 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/davinci.txt | 28 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-mxs.txt | 2 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/nomadik.txt | 23 |
4 files changed, 83 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/atmel-i2c.txt b/Documentation/devicetree/bindings/i2c/atmel-i2c.txt new file mode 100644 index 000000000000..b689a0d9441c --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/atmel-i2c.txt @@ -0,0 +1,30 @@ +I2C for Atmel platforms + +Required properties : +- compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c", + "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c" + or "atmel,at91sam9x5-i2c" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: interrupt number to the cpu. +- #address-cells = <1>; +- #size-cells = <0>; + +Optional properties: +- Child nodes conforming to i2c bus binding + +Examples : + +i2c0: i2c@fff84000 { + compatible = "atmel,at91sam9g20-i2c"; + reg = <0xfff84000 0x100>; + interrupts = <12 4 6>; + #address-cells = <1>; + #size-cells = <0>; + + 24c512@50 { + compatible = "24c512"; + reg = <0x50>; + pagesize = <128>; + } +} diff --git a/Documentation/devicetree/bindings/i2c/davinci.txt b/Documentation/devicetree/bindings/i2c/davinci.txt new file mode 100644 index 000000000000..2dc935b4113d --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/davinci.txt @@ -0,0 +1,28 @@ +* Texas Instruments Davinci I2C + +This file provides information, what the device node for the +davinci i2c interface contain. + +Required properties: +- compatible: "ti,davinci-i2c"; +- reg : Offset and length of the register set for the device + +Recommended properties : +- interrupts : standard interrupt property. +- clock-frequency : desired I2C bus clock frequency in Hz. + +Example (enbw_cmc board): + i2c@1c22000 { + compatible = "ti,davinci-i2c"; + reg = <0x22000 0x1000>; + clock-frequency = <100000>; + interrupts = <15>; + interrupt-parent = <&intc>; + #address-cells = <1>; + #size-cells = <0>; + + dtt@48 { + compatible = "national,lm75"; + reg = <0x48>; + }; + }; diff --git a/Documentation/devicetree/bindings/i2c/i2c-mxs.txt b/Documentation/devicetree/bindings/i2c/i2c-mxs.txt index 30ac3a0557f7..7a3fe9e5f4cb 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mxs.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mxs.txt @@ -6,6 +6,7 @@ Required properties: - interrupts: Should contain ERROR and DMA interrupts - clock-frequency: Desired I2C bus clock frequency in Hz. Only 100000Hz and 400000Hz modes are supported. +- fsl,i2c-dma-channel: APBX DMA channel for the I2C Examples: @@ -16,4 +17,5 @@ i2c0: i2c@80058000 { reg = <0x80058000 2000>; interrupts = <111 68>; clock-frequency = <100000>; + fsl,i2c-dma-channel = <6>; }; diff --git a/Documentation/devicetree/bindings/i2c/nomadik.txt b/Documentation/devicetree/bindings/i2c/nomadik.txt new file mode 100644 index 000000000000..72065b0ff680 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/nomadik.txt @@ -0,0 +1,23 @@ +I2C for Nomadik based systems + +Required (non-standard) properties: + - Nil + +Recommended (non-standard) properties: + - clock-frequency : Maximum bus clock frequency for the device + +Optional (non-standard) properties: + - Nil + +Example : + +i2c@80004000 { + compatible = "stericsson,db8500-i2c", "st,nomadik-i2c"; + reg = <0x80004000 0x1000>; + interrupts = <0 21 0x4>; + #address-cells = <1>; + #size-cells = <0>; + v-i2c-supply = <&db8500_vape_reg>; + + clock-frequency = <400000>; +}; |