Thank for reply,
now i2c is working, I compared dts file from other dist (where i2c works) , and changed:
i2c0-pins {
pins = "PH0\0PH1";
function = "i2c0";
phandle = <0x30>;
};
i2c1-pins {
pins = "PH2\0PH3";
function = "i2c1";
phandle = <0x31>;
};
i2c2-ph-pins {
pins = "PH4\0PH5";
function = "i2c2";
phandle = <0x69>;
};
i2c@1c2ac00 {
compatible = "allwinner,sun8i-a83t-i2c\0allwinner,sun6i-a31-i2c";
reg = <0x1c2ac00 0x400>;
interrupts = <0x00 0x06 0x04>;
clocks = <0x02 0x32>;
resets = <0x02 0x25>;
pinctrl-names = "default";
pinctrl-0 = <0x30>;
status = "okay";
#address-cells = <0x01>;
#size-cells = <0x00>;
phandle = <0x78>;
};
i2c@1c2b000 {
compatible = "allwinner,sun8i-a83t-i2c\0allwinner,sun6i-a31-i2c";
reg = <0x1c2b000 0x400>;
interrupts = <0x00 0x07 0x04>;
clocks = <0x02 0x33>;
resets = <0x02 0x26>;
pinctrl-names = "default";
pinctrl-0 = <0x31>;
status = "okay";
#address-cells = <0x01>;
#size-cells = <0x00>;
phandle = <0x79>;
};
i2c@1c2b400 {
compatible = "allwinner,sun8i-a83t-i2c\0allwinner,sun6i-a31-i2c";
reg = <0x1c2b400 0x400>;
interrupts = <0x00 0x08 0x04>;
clocks = <0x02 0x34>;
resets = <0x02 0x27>;
pinctrl-names = "default";
pinctrl-0 = <0x69>;
status = "okay";
#address-cells = <0x01>;
#size-cells = <0x00>;
phandle = <0x7a>;
};
spravce@bananapim3:~$ sudo i2cdetect -y 3
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: 20 21 -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
