1*4882a593SmuzhiyunDevice tree configuration for Renesas IIC (sh_mobile) driver 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRequired properties: 4*4882a593Smuzhiyun- compatible : 5*4882a593Smuzhiyun - "renesas,iic-r8a73a4" (R-Mobile APE6) 6*4882a593Smuzhiyun - "renesas,iic-r8a7740" (R-Mobile A1) 7*4882a593Smuzhiyun - "renesas,iic-r8a7742" (RZ/G1H) 8*4882a593Smuzhiyun - "renesas,iic-r8a7743" (RZ/G1M) 9*4882a593Smuzhiyun - "renesas,iic-r8a7744" (RZ/G1N) 10*4882a593Smuzhiyun - "renesas,iic-r8a7745" (RZ/G1E) 11*4882a593Smuzhiyun - "renesas,iic-r8a774a1" (RZ/G2M) 12*4882a593Smuzhiyun - "renesas,iic-r8a774b1" (RZ/G2N) 13*4882a593Smuzhiyun - "renesas,iic-r8a774c0" (RZ/G2E) 14*4882a593Smuzhiyun - "renesas,iic-r8a774e1" (RZ/G2H) 15*4882a593Smuzhiyun - "renesas,iic-r8a7790" (R-Car H2) 16*4882a593Smuzhiyun - "renesas,iic-r8a7791" (R-Car M2-W) 17*4882a593Smuzhiyun - "renesas,iic-r8a7792" (R-Car V2H) 18*4882a593Smuzhiyun - "renesas,iic-r8a7793" (R-Car M2-N) 19*4882a593Smuzhiyun - "renesas,iic-r8a7794" (R-Car E2) 20*4882a593Smuzhiyun - "renesas,iic-r8a7795" (R-Car H3) 21*4882a593Smuzhiyun - "renesas,iic-r8a7796" (R-Car M3-W) 22*4882a593Smuzhiyun - "renesas,iic-r8a77961" (R-Car M3-W+) 23*4882a593Smuzhiyun - "renesas,iic-r8a77965" (R-Car M3-N) 24*4882a593Smuzhiyun - "renesas,iic-r8a77990" (R-Car E3) 25*4882a593Smuzhiyun - "renesas,iic-sh73a0" (SH-Mobile AG5) 26*4882a593Smuzhiyun - "renesas,rcar-gen2-iic" (generic R-Car Gen2 or RZ/G1 27*4882a593Smuzhiyun compatible device) 28*4882a593Smuzhiyun - "renesas,rcar-gen3-iic" (generic R-Car Gen3 or RZ/G2 29*4882a593Smuzhiyun compatible device) 30*4882a593Smuzhiyun - "renesas,rmobile-iic" (generic device) 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun When compatible with a generic R-Car version, nodes 33*4882a593Smuzhiyun must list the SoC-specific version corresponding to 34*4882a593Smuzhiyun the platform first followed by the generic R-Car 35*4882a593Smuzhiyun version. 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun When compatible with "renesas,rmobile-iic" it should 38*4882a593Smuzhiyun be the last compatibility string listed. 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun The r8a77990 (R-Car E3) and r8a774c0 (RZ/G2E) 41*4882a593Smuzhiyun controllers are not considered compatible with 42*4882a593Smuzhiyun "renesas,rcar-gen3-iic" or "renesas,rmobile-iic" 43*4882a593Smuzhiyun due to the absence of automatic transmission registers. 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun- reg : address start and address range size of device 46*4882a593Smuzhiyun- interrupts : interrupt of device 47*4882a593Smuzhiyun- clocks : clock for device 48*4882a593Smuzhiyun- #address-cells : should be <1> 49*4882a593Smuzhiyun- #size-cells : should be <0> 50*4882a593Smuzhiyun 51*4882a593SmuzhiyunOptional properties: 52*4882a593Smuzhiyun- clock-frequency : frequency of bus clock in Hz. Default 100kHz if unset. 53*4882a593Smuzhiyun- dmas : Must contain a list of two references to DMA 54*4882a593Smuzhiyun specifiers, one for transmission, and one for 55*4882a593Smuzhiyun reception. 56*4882a593Smuzhiyun- dma-names : Must contain a list of two DMA names, "tx" and "rx". 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun 59*4882a593SmuzhiyunPinctrl properties might be needed, too. See there. 60*4882a593Smuzhiyun 61*4882a593SmuzhiyunExample: 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun iic0: i2c@e6500000 { 64*4882a593Smuzhiyun compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic", 65*4882a593Smuzhiyun "renesas,rmobile-iic"; 66*4882a593Smuzhiyun reg = <0 0xe6500000 0 0x425>; 67*4882a593Smuzhiyun interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>; 68*4882a593Smuzhiyun clocks = <&mstp3_clks R8A7790_CLK_IIC0>; 69*4882a593Smuzhiyun clock-frequency = <400000>; 70*4882a593Smuzhiyun #address-cells = <1>; 71*4882a593Smuzhiyun #size-cells = <0>; 72*4882a593Smuzhiyun }; 73