| /* |
| * 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 |
| 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 |
| 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 |
