arch/sparc/kernel/of_device_common.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _OF_DEVICE_COMMON_H
   3 #define _OF_DEVICE_COMMON_H
   4
   5 static inline u64 of_read_addr(const u32 *cell, int size)
   6 {
   7         u64 r = 0;
   8         while (size--)
   9                 r = (r << 32) | *(cell++);
  10         return r;
  11 }
  12
  13 void of_bus_default_count_cells(struct device_node *dev, int *addrc,
  14                                 int *sizec);
  15 int of_out_of_range(const u32 *addr, const u32 *base,
  16                     const u32 *size, int na, int ns);
  17 int of_bus_default_map(u32 *addr, const u32 *range, int na, int ns, int pna);
  18 unsigned long of_bus_default_get_flags(const u32 *addr, unsigned long flags);
  19
  20 int of_bus_sbus_match(struct device_node *np);
  21 void of_bus_sbus_count_cells(struct device_node *child, int *addrc, int *sizec);
  22
  23 /* Max address size we deal with */
  24 #define OF_MAX_ADDR_CELLS       4
  25
  26 struct of_bus {
  27         const char      *name;
  28         const char      *addr_prop_name;
  29         int             (*match)(struct device_node *parent);
  30         void            (*count_cells)(struct device_node *child,
  31                                        int *addrc, int *sizec);
  32         int             (*map)(u32 *addr, const u32 *range,
  33                                int na, int ns, int pna);
  34         unsigned long   (*get_flags)(const u32 *addr, unsigned long);
  35 };
  36
  37 #endif /* _OF_DEVICE_COMMON_H */