#define SPI_MODE0               0x00
#define SPI_MODE1               0x01
#define SPI_MODE2               0x02
#define SPI_MODE3               0x03

/* DO NOT TOUCH THEESE */
#define SPI_SIZE_CHUNK          4
#define SPI_SIZE_WM             2

#define SPI_FLAG_XCHG           0x10

#define SPI_CSID_NONE           1