| /* | |
| * 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 |