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买来的am335x核心板,自己画的底板,底板上没有接I2C设备。在内核启动的时候一直出现omap_i2c omap_i2c.2: controller timed out的错误,但是好长时间后又能启动成功。我先请教如何关闭I2C的驱动,不再出现这个问题