
Steps for setting SPI : from file:spi-ax99100.h
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#define SPI_REG_BAR	0 
    //0:Bar0, 1:Bar1

#define SPI_FLASH_DEV 0 
    //0:SPI controller only 1: attached a kernel supported spi-nor flash device by default.

#define CONFIG_SPI_AX99100_I2C 0    // 0:I2C disable    1: I2C enable