/*
   * Atmel AT93C46 serial eeprom driver
   *
   * Brian Murphy <brian.murphy@eicon.com>
   *
   */
  
  extern struct at93c_defs {
  	volatile u32 *reg;
  	volatile u32 *rdata_reg;
  	int rdata_shift;
  	int wdata_shift;
  	u32 cs;
  	u32 clk;
  } *at93c;
  
  u8 at93c_read(u8 addr);
  void at93c_write(u8 addr, u8 data);