memsetup-s3c44b0.s

arm7,44b0芯片的blob程序,适用于学嵌入式linux的新手.

/*
 * memsetup-sa1110.S: memory setup for various SA1110 architectures
 *
 * $Id: memsetup-sa1110.S,v 1.8 2001/12/27 18:27:37 erikm Exp $
 *
 * Copyright (C) 2001 Erik Mouw ([e-mail])
 *
 * 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
 *
 */
/*
 * Documentation:
 * Intel Corporation, "Intel StrongARM SA-1110 Microprocessor
 *     Advanced Developer's manual, December 1999
 *
 * Intel has a very hard to find SDRAM configurator on their web site:
 *   http://appzone.intel.com/hcd/sa1110/memory/index.asp
 *
 * NOTE: This code assumes that an SA1110 CPU *always* uses SDRAM. This
 * appears to be true, but it might be possible that somebody designs a
 * board with mixed EDODRAM/SDRAM memory (which is a bad idea). -- Erik
 *
 * 04-10-2001:	SELETZ
 * - separated memory config for multiple platform support
 * - perform SA1110 Hardware Reset Procedure
 *
 */

.ident "$Id: memsetup-sa1110.S,v 1.8 2001/12/27 18:27:37 erikm Exp $"

#ifdef HAVE_CONFIG_H
# include <blob/config.h>
#endif

#define BLOB_NEED_MEMCONFIG
#include <blob/memsetup.h>
#include <blob/arch.h>

			
.text

MEMORY_CONFIG:
	.long	0x11000000
	.long	0x600
	.long	0x7ffc
	.long	0x7ffc
	.long	0x7ffc
	.long	0x7ffc
	.long	0x7ffc
	.long	0x18001
	.long	0x18000
	.long	0x82062b
	.long	0x10
	.long	0x20
	.long	0x20

.globl memsetup
memsetup:

	ldr	r0, =MEMORY_CONFIG
	ldmia	r0, {r1-r13}
	ldr 	r0, =0x01c80000
	stmia	r0, {r1-r13}
	
	mov	pc, lr