u-boot/include/asm-ppc/mpc512x.h
Wolfgang Denk da01f53404 mpc512x: fix fixed_sdram() init code.
Commit 054197ba and later fixes used an array to initialize some of
the MDDRC parameters; however, the use of an array turned out to be a
bad idea as it was not possible to correlate structure entries to
array indices in readable and reliable way. Now we use a struct
instead, which makes this self-explanatory.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2009-10-08 00:23:12 +02:00

58 lines
1.7 KiB
C

/*
* include/asm-ppc/mpc512x.h
*
* Prototypes, etc. for the Freescale MPC512x embedded cpu chips
*
* 2009 (C) Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __ASMPPC_MPC512X_H
#define __ASMPPC_MPC512X_H
/*
* macros for manipulating CSx_START/STOP
*/
#define CSAW_START(start) ((start) & 0xFFFF0000)
#define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16)
/*
* Inlines
*/
/*
* According to MPC5121e RM, configuring local access windows should
* be followed by a dummy read of the config register that was
* modified last and an isync.
*/
static inline void sync_law(volatile void *addr)
{
in_be32(addr);
__asm__ __volatile__ ("isync");
}
/*
* Prototypes
*/
extern long int fixed_sdram(ddr512x_config_t *mddrc_config,
u32 *dram_init_seq, int seq_sz);
extern int mpc5121_diu_init(void);
extern void ide_set_reset(int idereset);
#endif /* __ASMPPC_MPC512X_H */