text: /************************************************************************
  File  : Clock H/w specific Information
  
  Author: Pankaj Dev <pankaj.dev@st.com>
  
  Copyright (C) 2014 STMicroelectronics
  ************************************************************************/
  
  #ifndef __CLKGEN_INFO_H
  #define __CLKGEN_INFO_H
  
  struct clkgen_field {
  	unsigned int offset;
  	unsigned int mask;
  	unsigned int shift;
  };
  
  static inline unsigned long clkgen_read(void __iomem	*base,
  					  struct clkgen_field *field)
  {
  	return (readl(base + field->offset) >> field->shift) & field->mask;
  }
  
  
  static inline void clkgen_write(void __iomem *base, struct clkgen_field *field,
  				  unsigned long val)
  {
  	writel((readl(base + field->offset) &
  	       ~(field->mask << field->shift)) | (val << field->shift),
  	       base + field->offset);
  
  	return;
  }
  
  #define CLKGEN_FIELD(_offset, _mask, _shift) {		\
  				.offset	= _offset,	\
  				.mask	= _mask,	\
  				.shift	= _shift,	\
  				}
  
  #define CLKGEN_READ(pll, field) clkgen_read(pll->regs_base, \
  		&pll->data->field)
  
  #define CLKGEN_WRITE(pll, field, val) clkgen_write(pll->regs_base, \
  		&pll->data->field, val)
  
  #endif /*__CLKGEN_INFO_H*/
  
  