/* * Memory Setup stuff - taken from ??? * * 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 */#include "config.h"#include "version.h"/* some parameters for the board */SYSCON2:	.long	0x80001100MEMCFG1:	.long	0x80000180MEMCFG2:	.long	0x800001C0DRFPR:		.long	0x80000200syscon2_mask:	.long	0x00000004memcfg1_val:	.long	0x160c1414memcfg2_mask:	.long	0x0000ffff @ only set lower 16 bitsmemcfg2_val:	.long	0x00000000 @ upper 16 bits are reserved for CS7 + CS6drfpr_val:	.long	0x00000081/* setting up the memory */.globl memsetupmemsetup:	/*	 * DRFPR	 * 64kHz DRAM refresh	 */	ldr	r0, DRFPR	ldr	r1, drfpr_val	str	r1, [r0]	/*	 * SYSCON2: clear bit 2, DRAM is 32 bits wide	 */	ldr	r0, SYSCON2	ldr	r2, [r0]	ldr	r1, syscon2_mask	bic	r2, r2, r1	str	r2, [r0]	/*	 * MEMCFG1	 * Setting up Keyboard at CS3, 8 Bit, 3 Waitstates	 * Setting up CS8900 (Ethernet) at CS2, 32 Bit, 5 Waitstates	 * Setting up flash at CS0 and CS1, 32 Bit, 3 Waitstates	 */	ldr	r0, MEMCFG1	ldr	r1, memcfg1_val	str	r1, [r0]	/*	 * MEMCFG2	 * Setting up ? with 0	 *	 */	ldr	r0, MEMCFG2	ldr	r2, [r0]	ldr	r1, memcfg2_mask	bic	r2, r2, r1	ldr	r1, memcfg2_val	orr	r2, r2, r1	str	r2, [r0]	/* everything is fine now */	mov	pc, lr