litedram/gen-src/sdram_init/include/system.h

   1 #ifndef __SYSTEM_H
   2 #define __SYSTEM_H
   3
   4 #include "microwatt_soc.h"
   5 #include "io.h"
   6
   7 #define CSR_ACCESSORS_DEFINED
   8 #define CSR_BASE                DRAM_CTRL_BASE
   9 #define CONFIG_CPU_NOP          "nop"
  10
  11 extern void flush_cpu_dcache(void);
  12 extern void flush_cpu_icache(void);
  13 static inline void flush_l2_cache(void) { }
  14
  15 /* Fake timer stuff. LiteX should abstract this */
  16 static inline void timer0_en_write(int e) { }
  17 static inline void timer0_reload_write(int r) { }
  18 static inline void timer0_load_write(int l) { }
  19 static inline void timer0_update_value_write(int v) { }
  20 static inline uint64_t timer0_value_read(void)
  21 {
  22         uint64_t val;
  23
  24         __asm__ volatile ("mfdec %0" : "=r" (val));
  25         return val;
  26 }
  27
  28 static inline void csr_write_simple(unsigned long v, unsigned long a)
  29 {
  30         return writel(v, a);
  31 }
  32
  33 static inline unsigned long csr_read_simple(unsigned long a)
  34 {
  35         return readl(a);
  36 }
  37
  38 #endif /* __SYSTEM_H */
  39