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| author | Stephen Warren <swarren@wwwdotorg.org> | 2013-02-11 19:47:56 -0700 |
|---|---|---|
| committer | Wolfram Sang <wolfram@the-dreams.de> | 2013-02-12 11:33:59 +0100 |
| commit | f3b54b9a066edeac5c06e1cdcd82e1cb1224aaef (patch) | |
| tree | a98bbfac8ccd16ac6535107a066bb78a226adc7d /Documentation | |
| parent | cb7f07a4c58659d971a60ebbb8547f6611278622 (diff) | |
| download | linux-f3b54b9a066edeac5c06e1cdcd82e1cb1224aaef.tar.gz linux-f3b54b9a066edeac5c06e1cdcd82e1cb1224aaef.tar.bz2 linux-f3b54b9a066edeac5c06e1cdcd82e1cb1224aaef.zip | |
i2c: add bcm2835 driver
This implements a very basic I2C host driver for the BCM2835 SoC. Missing
features so far are:
* 10-bit addressing.
* DMA.
Reviewed-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/brcm,bcm2835-i2c.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/brcm,bcm2835-i2c.txt b/Documentation/devicetree/bindings/i2c/brcm,bcm2835-i2c.txt new file mode 100644 index 000000000000..e9de3756752b --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/brcm,bcm2835-i2c.txt @@ -0,0 +1,20 @@ +Broadcom BCM2835 I2C controller + +Required properties: +- compatible : Should be "brcm,bcm2835-i2c". +- reg: Should contain register location and length. +- interrupts: Should contain interrupt. +- clocks : The clock feeding the I2C controller. + +Recommended properties: +- clock-frequency : desired I2C bus clock frequency in Hz. + +Example: + +i2c@20205000 { + compatible = "brcm,bcm2835-i2c"; + reg = <0x7e205000 0x1000>; + interrupts = <2 21>; + clocks = <&clk_i2c>; + clock-frequency = <100000>; +}; |