target/linux/oxnas/files/arch/arm/mach-oxnas/include/mach/utils.h

   1 #ifndef _NAS782X_UTILS_H
   2 #define _NAS782X_UTILS_H
   3
   4 #include <linux/io.h>
   5 #include <mach/hardware.h>
   6
   7 static inline void oxnas_register_clear_mask(void __iomem *p, unsigned mask)
   8 {
   9         u32 val = readl_relaxed(p);
  10
  11         val &= ~mask;
  12         writel_relaxed(val, p);
  13 }
  14
  15 static inline void oxnas_register_set_mask(void __iomem *p, unsigned mask)
  16 {
  17         u32 val = readl_relaxed(p);
  18
  19         val |= mask;
  20         writel_relaxed(val, p);
  21 }
  22
  23 static inline void oxnas_register_value_mask(void __iomem *p,
  24                                              unsigned mask, unsigned new_value)
  25 {
  26         /* TODO sanity check mask & new_value = new_value */
  27         u32 val = readl_relaxed(p);
  28
  29         val &= ~mask;
  30         val |= new_value;
  31         writel_relaxed(val, p);
  32 }
  33
  34 #endif /* _NAS782X_UTILS_H */