arch/ppc/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  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  */
  26 #ifndef __ASMPPC_MPC512X_H
  27 #define __ASMPPC_MPC512X_H
  28
  29 /*
  30  * macros for manipulating CSx_START/STOP
  31  */
  32 #define CSAW_START(start)       ((start) & 0xFFFF0000)
  33 #define CSAW_STOP(start, size)  (((start) + (size) - 1) >> 16)
  34
  35 /*
  36  * Inlines
  37  */
  38
  39 /*
  40  * According to MPC5121e RM, configuring local access windows should
  41  * be followed by a dummy read of the config register that was
  42  * modified last and an isync.
  43  */
  44 static inline void sync_law(volatile void *addr)
  45 {
  46         in_be32(addr);
  47         __asm__ __volatile__ ("isync");
  48 }
  49
  50 /*
  51  * Prototypes
  52  */
  53 extern long int fixed_sdram(ddr512x_config_t *mddrc_config,
  54                                 u32 *dram_init_seq, int seq_sz);
  55 extern int mpc5121_diu_init(void);
  56 extern void ide_set_reset(int idereset);
  57
  58 #endif /* __ASMPPC_MPC512X_H */