arch/powerpc/include/asm/mpc512x.h

   1 /*
   2  * include/asm-ppc/mpc512x.h
   3  *
   4  * Prototypes, etc. for the Freescale MPC512x embedded cpu chips
   5  *
   6  * 2009 (C) Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10 #ifndef __ASMPPC_MPC512X_H
  11 #define __ASMPPC_MPC512X_H
  12
  13 /*
  14  * macros for manipulating CSx_START/STOP
  15  */
  16 #define CSAW_START(start)       ((start) & 0xFFFF0000)
  17 #define CSAW_STOP(start, size)  (((start) + (size) - 1) >> 16)
  18
  19 /*
  20  * Inlines
  21  */
  22
  23 /*
  24  * According to MPC5121e RM, configuring local access windows should
  25  * be followed by a dummy read of the config register that was
  26  * modified last and an isync.
  27  */
  28 static inline void sync_law(volatile void *addr)
  29 {
  30         in_be32(addr);
  31         __asm__ __volatile__ ("isync");
  32 }
  33
  34 /*
  35  * Prototypes
  36  */
  37 extern long int fixed_sdram(ddr512x_config_t *mddrc_config,
  38                                 u32 *dram_init_seq, int seq_sz);
  39 extern int mpc5121_diu_init(void);
  40 extern void ide_set_reset(int idereset);
  41
  42 #endif /* __ASMPPC_MPC512X_H */