diff options
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/atmel-dma.txt | 14 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/omap-i2c.txt | 30 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/mc13xxx.txt | 78 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/twl-familly.txt | 47 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/resource-names.txt | 54 |
5 files changed, 223 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/atmel-dma.txt b/Documentation/devicetree/bindings/dma/atmel-dma.txt new file mode 100644 index 000000000000..3c046ee6e8b5 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/atmel-dma.txt @@ -0,0 +1,14 @@ +* Atmel Direct Memory Access Controller (DMA) + +Required properties: +- compatible: Should be "atmel,<chip>-dma" +- reg: Should contain DMA registers location and length +- interrupts: Should contain DMA interrupt + +Examples: + +dma@ffffec00 { + compatible = "atmel,at91sam9g45-dma"; + reg = <0xffffec00 0x200>; + interrupts = <21>; +}; diff --git a/Documentation/devicetree/bindings/i2c/omap-i2c.txt b/Documentation/devicetree/bindings/i2c/omap-i2c.txt new file mode 100644 index 000000000000..56564aa4b444 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/omap-i2c.txt @@ -0,0 +1,30 @@ +I2C for OMAP platforms + +Required properties : +- compatible : Must be "ti,omap3-i2c" or "ti,omap4-i2c" +- ti,hwmods : Must be "i2c<n>", n being the instance number (1-based) +- #address-cells = <1>; +- #size-cells = <0>; + +Recommended properties : +- clock-frequency : Desired I2C bus clock frequency in Hz. Otherwise + the default 100 kHz frequency will be used. + +Optional properties: +- Child nodes conforming to i2c bus binding + +Note: Current implementation will fetch base address, irq and dma +from omap hwmod data base during device registration. +Future plan is to migrate hwmod data base contents into device tree +blob so that, all the required data will be used from device tree dts +file. + +Examples : + +i2c1: i2c@0 { + compatible = "ti,omap3-i2c"; + #address-cells = <1>; + #size-cells = <0>; + ti,hwmods = "i2c1"; + clock-frequency = <400000>; +}; diff --git a/Documentation/devicetree/bindings/mfd/mc13xxx.txt b/Documentation/devicetree/bindings/mfd/mc13xxx.txt new file mode 100644 index 000000000000..19f6af47a792 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/mc13xxx.txt @@ -0,0 +1,78 @@ +* Freescale MC13783/MC13892 Power Management Integrated Circuit (PMIC) + +Required properties: +- compatible : Should be "fsl,mc13783" or "fsl,mc13892" + +Optional properties: +- fsl,mc13xxx-uses-adc : Indicate the ADC is being used +- fsl,mc13xxx-uses-codec : Indicate the Audio Codec is being used +- fsl,mc13xxx-uses-rtc : Indicate the RTC is being used +- fsl,mc13xxx-uses-touch : Indicate the touchscreen controller is being used + +Sub-nodes: +- regulators : Contain the regulator nodes. The MC13892 regulators are + bound using their names as listed below with their registers and bits + for enabling. + + vcoincell : regulator VCOINCELL (register 13, bit 23) + sw1 : regulator SW1 (register 24, bit 0) + sw2 : regulator SW2 (register 25, bit 0) + sw3 : regulator SW3 (register 26, bit 0) + sw4 : regulator SW4 (register 27, bit 0) + swbst : regulator SWBST (register 29, bit 20) + vgen1 : regulator VGEN1 (register 32, bit 0) + viohi : regulator VIOHI (register 32, bit 3) + vdig : regulator VDIG (register 32, bit 9) + vgen2 : regulator VGEN2 (register 32, bit 12) + vpll : regulator VPLL (register 32, bit 15) + vusb2 : regulator VUSB2 (register 32, bit 18) + vgen3 : regulator VGEN3 (register 33, bit 0) + vcam : regulator VCAM (register 33, bit 6) + vvideo : regulator VVIDEO (register 33, bit 12) + vaudio : regulator VAUDIO (register 33, bit 15) + vsd : regulator VSD (register 33, bit 18) + gpo1 : regulator GPO1 (register 34, bit 6) + gpo2 : regulator GPO2 (register 34, bit 8) + gpo3 : regulator GPO3 (register 34, bit 10) + gpo4 : regulator GPO4 (register 34, bit 12) + pwgt1spi : regulator PWGT1SPI (register 34, bit 15) + pwgt2spi : regulator PWGT2SPI (register 34, bit 16) + vusb : regulator VUSB (register 50, bit 3) + + The bindings details of individual regulator device can be found in: + Documentation/devicetree/bindings/regulator/regulator.txt + +Examples: + +ecspi@70010000 { /* ECSPI1 */ + fsl,spi-num-chipselects = <2>; + cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */ + <&gpio3 25 0>; /* GPIO4_25 */ + status = "okay"; + + pmic: mc13892@0 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "fsl,mc13892"; + spi-max-frequency = <6000000>; + reg = <0>; + interrupt-parent = <&gpio0>; + interrupts = <8>; + + regulators { + sw1_reg: mc13892__sw1 { + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <1375000>; + regulator-boot-on; + regulator-always-on; + }; + + sw2_reg: mc13892__sw2 { + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1850000>; + regulator-boot-on; + regulator-always-on; + }; + }; + }; +}; diff --git a/Documentation/devicetree/bindings/mfd/twl-familly.txt b/Documentation/devicetree/bindings/mfd/twl-familly.txt new file mode 100644 index 000000000000..a66fcf946759 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/twl-familly.txt @@ -0,0 +1,47 @@ +Texas Instruments TWL family + +The TWLs are Integrated Power Management Chips. +Some version might contain much more analog function like +USB transceiver or Audio amplifier. +These chips are connected to an i2c bus. + + +Required properties: +- compatible : Must be "ti,twl4030"; + For Integrated power-management/audio CODEC device used in OMAP3 + based boards +- compatible : Must be "ti,twl6030"; + For Integrated power-management used in OMAP4 based boards +- interrupts : This i2c device has an IRQ line connected to the main SoC +- interrupt-controller : Since the twl support several interrupts internally, + it is considered as an interrupt controller cascaded to the SoC one. +- #interrupt-cells = <1>; +- interrupt-parent : The parent interrupt controller. + +Optional node: +- Child nodes contain in the twl. The twl family is made of several variants + that support a different number of features. + The children nodes will thus depend of the capability of the variant. + + +Example: +/* + * Integrated Power Management Chip + * http://www.ti.com/lit/ds/symlink/twl6030.pdf + */ +twl@48 { + compatible = "ti,twl6030"; + reg = <0x48>; + interrupts = <39>; /* IRQ_SYS_1N cascaded to gic */ + interrupt-controller; + #interrupt-cells = <1>; + interrupt-parent = <&gic>; + #address-cells = <1>; + #size-cells = <0>; + + twl_rtc { + compatible = "ti,twl_rtc"; + interrupts = <11>; + reg = <0>; + }; +}; diff --git a/Documentation/devicetree/bindings/resource-names.txt b/Documentation/devicetree/bindings/resource-names.txt new file mode 100644 index 000000000000..e280fef6f265 --- /dev/null +++ b/Documentation/devicetree/bindings/resource-names.txt @@ -0,0 +1,54 @@ +Some properties contain an ordered list of 1 or more datum which are +normally accessed by index. However, some devices will have multiple +values which are more naturally accessed by name. Device nodes can +include a supplemental property for assigning names to each of the list +items. The names property consists of a list of strings in the same +order as the data in the resource property. + +The following supplemental names properties are defined. + +Resource Property Supplemental Names Property +----------------- --------------------------- +reg reg-names +clocks clock-names +interrupts interrupt-names + +Usage: + +The -names property must be used in conjunction with the normal resource +property. If not it will be ignored. + +Examples: + +l4-abe { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <1>; + ranges = <0 0 0x48000000 0x00001000>, /* MPU path */ + <1 0 0x49000000 0x00001000>; /* L3 path */ + mcasp { + compatible = "ti,mcasp"; + reg = <0 0x10 0x10>, <0 0x20 0x10>, + <1 0x10 0x10>, <1 0x20 0x10>; + reg-names = "mpu", "dat", + "dma", "dma_dat"; + interrupts = <11>, <12>; + interrupt-names = "rx", "tx"; + }; + + timer { + compatible = "ti,timer"; + reg = <0 0x40 0x10>, <1 0x40 0x10>; + reg-names = "mpu", "dma"; + }; +}; + + +usb { + compatible = "ti,usb-host"; + reg = <0x4a064000 0x800>, <0x4a064800 0x200>, + <0x4a064c00 0x200>; + reg-names = "config", "ohci", "ehci"; + interrupts = <14>, <15>; + interrupt-names = "ohci", "ehci"; +}; |
