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Linux/AM5728: SPI configuration for external RTC

Part Number: AM5728


Tool/software: Linux

Hi,

On my custom am5728 board, I use the rtc IC ds1343 and am5728's spi interface.now I have added ds1343 driver in Linux in menuconfig.but how do I modify the device tree or how do I set up the SPI interface? can anyone help me.

thank you.