From 7629f1c06b6dea36bbc7bf70820b824e9b6d2227 Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Sun, 14 Jun 2009 20:58:47 +0200 Subject: MPC512x: factor out common code Now that we have 3 boards for the MPC512x it turns out that they all use the very same fixed_sdram() code. This patch factors out this common code into cpu/mpc512x/fixed_sdram.c and adds a new header file, include/asm-ppc/mpc512x.h, with some macros, inline functions and prototype definitions specific to MPC512x systems. Signed-off-by: Wolfgang Denk Cc: Stefan Roese Cc: Reinhard Arlt --- include/asm-ppc/mpc512x.h | 57 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 include/asm-ppc/mpc512x.h (limited to 'include/asm-ppc/mpc512x.h') diff --git a/include/asm-ppc/mpc512x.h b/include/asm-ppc/mpc512x.h new file mode 100644 index 0000000000..20456f52f7 --- /dev/null +++ b/include/asm-ppc/mpc512x.h @@ -0,0 +1,57 @@ +/* + * 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(void); +extern int mpc5121_diu_init(void); +extern void ide_set_reset(int idereset); + +#endif /* __ASMPPC_MPC512X_H */ -- cgit v1.2.1