From f3b54b9a066edeac5c06e1cdcd82e1cb1224aaef Mon Sep 17 00:00:00 2001 From: Stephen Warren <swarren@wwwdotorg.org> Date: Mon, 11 Feb 2013 19:47:56 -0700 Subject: 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> --- .../devicetree/bindings/i2c/brcm,bcm2835-i2c.txt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/brcm,bcm2835-i2c.txt (limited to 'Documentation') 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>; +}; -- cgit v1.2.3