xref: /OK3568_Linux_fs/u-boot/doc/device-tree-bindings/i2c/tegra20-i2c.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun(Placeholder note while we locate the kernel Tegra20 bindings)
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunAdded in U-Boot:
4*4882a593Smuzhiyun
5*4882a593SmuzhiyunRequired properties:
6*4882a593Smuzhiyun - clocks : Two clocks must be given, each as a phandle to the Tegra's
7*4882a593Smuzhiyun	    CAR node and the clock number as a parameter:
8*4882a593Smuzhiyun     - the I2C clock to use for the peripheral
9*4882a593Smuzhiyun     - the pll_p_out3 clock, which can be used for fast operation. This
10*4882a593Smuzhiyun	  does not change and is the same for all I2C nodes.
11*4882a593Smuzhiyun
12*4882a593SmuzhiyunExample:
13*4882a593Smuzhiyun(TODO: merge with existing example):
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun	i2c@7000c400 {
16*4882a593Smuzhiyun		#address-cells = <1>;
17*4882a593Smuzhiyun		#size-cells = <0>;
18*4882a593Smuzhiyun		compatible = "nvidia,tegra20-i2c";
19*4882a593Smuzhiyun		reg = <0x7000C400 0x100>;
20*4882a593Smuzhiyun		interrupts = < 116 >;
21*4882a593Smuzhiyun		/* PERIPH_ID_I2C2, PLL_P_OUT3 */
22*4882a593Smuzhiyun		clocks = <&tegra_car 54>, <&tegra_car 124>;
23*4882a593Smuzhiyun	};
24