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求解答:AM438x处理器怎么配置I2C1工作?



求解答:AM438x处理器怎么配置I2C1工作?

我配置m43x-epos-evm .dts  后是不成功的(I2C1不工作) 
                i2c1_pins: pinmux_i2c1_pins {                        pinctrl-single,pins = <
                                0x158 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE2)        /* i2c1_sda.i2c0_sda */
                                0x15c (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE2)        /* i2c1_scl.i2c0_scl */
                        >;
                };


请问还要配置什么呢?