1*4882a593SmuzhiyunI2C for R-Car platforms 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun- compatible: 5*4882a593Smuzhiyun "renesas,i2c-r8a7742" if the device is a part of a R8A7742 SoC. 6*4882a593Smuzhiyun "renesas,i2c-r8a7743" if the device is a part of a R8A7743 SoC. 7*4882a593Smuzhiyun "renesas,i2c-r8a7744" if the device is a part of a R8A7744 SoC. 8*4882a593Smuzhiyun "renesas,i2c-r8a7745" if the device is a part of a R8A7745 SoC. 9*4882a593Smuzhiyun "renesas,i2c-r8a77470" if the device is a part of a R8A77470 SoC. 10*4882a593Smuzhiyun "renesas,i2c-r8a774a1" if the device is a part of a R8A774A1 SoC. 11*4882a593Smuzhiyun "renesas,i2c-r8a774b1" if the device is a part of a R8A774B1 SoC. 12*4882a593Smuzhiyun "renesas,i2c-r8a774c0" if the device is a part of a R8A774C0 SoC. 13*4882a593Smuzhiyun "renesas,i2c-r8a774e1" if the device is a part of a R8A774E1 SoC. 14*4882a593Smuzhiyun "renesas,i2c-r8a7778" if the device is a part of a R8A7778 SoC. 15*4882a593Smuzhiyun "renesas,i2c-r8a7779" if the device is a part of a R8A7779 SoC. 16*4882a593Smuzhiyun "renesas,i2c-r8a7790" if the device is a part of a R8A7790 SoC. 17*4882a593Smuzhiyun "renesas,i2c-r8a7791" if the device is a part of a R8A7791 SoC. 18*4882a593Smuzhiyun "renesas,i2c-r8a7792" if the device is a part of a R8A7792 SoC. 19*4882a593Smuzhiyun "renesas,i2c-r8a7793" if the device is a part of a R8A7793 SoC. 20*4882a593Smuzhiyun "renesas,i2c-r8a7794" if the device is a part of a R8A7794 SoC. 21*4882a593Smuzhiyun "renesas,i2c-r8a7795" if the device is a part of a R8A7795 SoC. 22*4882a593Smuzhiyun "renesas,i2c-r8a7796" if the device is a part of a R8A77960 SoC. 23*4882a593Smuzhiyun "renesas,i2c-r8a77961" if the device is a part of a R8A77961 SoC. 24*4882a593Smuzhiyun "renesas,i2c-r8a77965" if the device is a part of a R8A77965 SoC. 25*4882a593Smuzhiyun "renesas,i2c-r8a77970" if the device is a part of a R8A77970 SoC. 26*4882a593Smuzhiyun "renesas,i2c-r8a77980" if the device is a part of a R8A77980 SoC. 27*4882a593Smuzhiyun "renesas,i2c-r8a77990" if the device is a part of a R8A77990 SoC. 28*4882a593Smuzhiyun "renesas,i2c-r8a77995" if the device is a part of a R8A77995 SoC. 29*4882a593Smuzhiyun "renesas,rcar-gen1-i2c" for a generic R-Car Gen1 compatible device. 30*4882a593Smuzhiyun "renesas,rcar-gen2-i2c" for a generic R-Car Gen2 or RZ/G1 compatible 31*4882a593Smuzhiyun device. 32*4882a593Smuzhiyun "renesas,rcar-gen3-i2c" for a generic R-Car Gen3 or RZ/G2 compatible 33*4882a593Smuzhiyun device. 34*4882a593Smuzhiyun "renesas,i2c-rcar" (deprecated) 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun When compatible with the generic version, nodes must list the 37*4882a593Smuzhiyun SoC-specific version corresponding to the platform first followed 38*4882a593Smuzhiyun by the generic version. 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun- reg: physical base address of the controller and length of memory mapped 41*4882a593Smuzhiyun region. 42*4882a593Smuzhiyun- interrupts: interrupt specifier. 43*4882a593Smuzhiyun 44*4882a593SmuzhiyunOptional properties: 45*4882a593Smuzhiyun- clock-frequency: desired I2C bus clock frequency in Hz. The absence of this 46*4882a593Smuzhiyun property indicates the default frequency 100 kHz. 47*4882a593Smuzhiyun- clocks: clock specifier. 48*4882a593Smuzhiyun- dmas: Must contain a list of two references to DMA specifiers, one for 49*4882a593Smuzhiyun transmission, and one for reception. 50*4882a593Smuzhiyun- dma-names: Must contain a list of two DMA names, "tx" and "rx". 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun- i2c-scl-falling-time-ns: see i2c.txt 53*4882a593Smuzhiyun- i2c-scl-internal-delay-ns: see i2c.txt 54*4882a593Smuzhiyun- i2c-scl-rising-time-ns: see i2c.txt 55*4882a593Smuzhiyun 56*4882a593SmuzhiyunExamples : 57*4882a593Smuzhiyun 58*4882a593Smuzhiyuni2c0: i2c@e6508000 { 59*4882a593Smuzhiyun #address-cells = <1>; 60*4882a593Smuzhiyun #size-cells = <0>; 61*4882a593Smuzhiyun compatible = "renesas,i2c-r8a7791", "renesas,rcar-gen2-i2c"; 62*4882a593Smuzhiyun reg = <0 0xe6508000 0 0x40>; 63*4882a593Smuzhiyun interrupts = <0 287 IRQ_TYPE_LEVEL_HIGH>; 64*4882a593Smuzhiyun clocks = <&mstp9_clks R8A7791_CLK_I2C0>; 65*4882a593Smuzhiyun clock-frequency = <400000>; 66*4882a593Smuzhiyun}; 67