blob: db9fd63defce301e29e6b1be84c73ef450d88bb1 [file] [log] [blame]
* Memory Setup stuff - taken from blob memsetup.S
* Copyright (C) 1999 2000 2001 Erik Mouw ( and
* Jan-Derk Bakker (
* 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
* 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 */
MEM_BASE: .long 0xa0000000
MEM_START: .long 0xc0000000
#define MDCNFG 0x00
#define MDCAS0 0x04
#define MDCAS1 0x08
#define MDCAS2 0x0c
#define MSC0 0x10
#define MSC1 0x14
#define MECR 0x18
mdcas0: .long 0xc71c703f
mdcas1: .long 0xffc71c71
mdcas2: .long 0xffffffff
/* mdcnfg: .long 0x0bb2bcbf */
mdcnfg: .long 0x0334b22f @ alt
/* mcs0: .long 0xfff8fff8 */
msc0: .long 0xad8c4888 @ alt
mecr: .long 0x00060006
/* mecr: .long 0x994a994a @ alt */
/* setting up the memory */
.globl lowlevel_init
ldr r0, MEM_BASE
/* Setup the flash memory */
ldr r1, msc0
str r1, [r0, #MSC0]
/* Set up the DRAM */
/* MDCAS0 */
ldr r1, mdcas0
str r1, [r0, #MDCAS0]
/* MDCAS1 */
ldr r1, mdcas1
str r1, [r0, #MDCAS1]
/* MDCAS2 */
ldr r1, mdcas2
str r1, [r0, #MDCAS2]
/* MDCNFG */
ldr r1, mdcnfg
str r1, [r0, #MDCNFG]
/* Set up PCMCIA space */
ldr r1, mecr
str r1, [r0, #MECR]
/* Load something to activate bank */
ldr r1, MEM_START
.rept 8
ldr r0, [r1]
/* everything is fine now */
mov pc, lr