1*4882a593SmuzhiyunI2C for Spreadtrum platforms 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun- compatible: Should be "sprd,sc9860-i2c". 5*4882a593Smuzhiyun- reg: Specify the physical base address of the controller and length 6*4882a593Smuzhiyun of memory mapped region. 7*4882a593Smuzhiyun- interrupts: Should contain I2C interrupt. 8*4882a593Smuzhiyun- clock-names: Should contain following entries: 9*4882a593Smuzhiyun "i2c" for I2C clock, 10*4882a593Smuzhiyun "source" for I2C source (parent) clock, 11*4882a593Smuzhiyun "enable" for I2C module enable clock. 12*4882a593Smuzhiyun- clocks: Should contain a clock specifier for each entry in clock-names. 13*4882a593Smuzhiyun- clock-frequency: Constains desired I2C bus clock frequency in Hz. 14*4882a593Smuzhiyun- #address-cells: Should be 1 to describe address cells for I2C device address. 15*4882a593Smuzhiyun- #size-cells: Should be 0 means no size cell for I2C device address. 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunOptional properties: 18*4882a593Smuzhiyun- Child nodes conforming to I2C bus binding 19*4882a593Smuzhiyun 20*4882a593SmuzhiyunExamples: 21*4882a593Smuzhiyuni2c0: i2c@70500000 { 22*4882a593Smuzhiyun compatible = "sprd,sc9860-i2c"; 23*4882a593Smuzhiyun reg = <0 0x70500000 0 0x1000>; 24*4882a593Smuzhiyun interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>; 25*4882a593Smuzhiyun clock-names = "i2c", "source", "enable"; 26*4882a593Smuzhiyun clocks = <&clk_i2c3>, <&ext_26m>, <&clk_ap_apb_gates 11>; 27*4882a593Smuzhiyun clock-frequency = <400000>; 28*4882a593Smuzhiyun #address-cells = <1>; 29*4882a593Smuzhiyun #size-cells = <0>; 30*4882a593Smuzhiyun}; 31*4882a593Smuzhiyun 32