/* * Memory Setup stuff - taken from blob memsetup.S * * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and * Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl) * * 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 */ 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 @ cccccccf mdcas1: .long 0xffc71c71 @ fffffffc mdcas2: .long 0xffffffff @ ffffffff mdcnfg: .long 0x0334b21f @ 9326991f msc0: .long 0xfff84458 @ 42304230 msc1: .long 0xffffffff @ 20182018 mecr: .long 0x7fff7fff @ 01000000 /* setting up the memory */ .globl lowlevel_init 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] .endr /* everything is fine now */ mov pc, lr