| /* | |
| * 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 */ | |
| SYSCON1: .long 0x80000100 | |
| SYSCON2: .long 0x80001100 | |
| SYSCON3: .long 0x80002200 | |
| MEMCFG1: .long 0x80000180 | |
| MEMCFG2: .long 0x800001C0 | |
| SDCONF: .long 0x80002300 | |
| SDRFPR: .long 0x80002340 | |
| syscon1_val: .long 0x00040100 | |
| syscon2_val: .long 0x00000102 | |
| syscon3_val: .long 0x0000020E | |
| memcfg1_val: .long 0x1f101710 | |
| memcfg2_mask: .long 0x0000ffff @ only set lower 16 bits | |
| memcfg2_val: .long 0x00001f13 @ upper 16 bits are reserved for CS7 + CS6 | |
| sdrfpr_val: .long 0x00000240 | |
| sdconf_val: .long 0x00000522 | |
| /* setting up the memory */ | |
| .globl lowlevel_init | |
| lowlevel_init: | |
| /* | |
| * SYSCON1-3 | |
| */ | |
| ldr r0, SYSCON1 | |
| ldr r1, syscon1_val | |
| str r1, [r0] | |
| ldr r0, SYSCON2 | |
| ldr r1, syscon2_val | |
| str r1, [r0] | |
| ldr r0, SYSCON3 | |
| ldr r1, syscon3_val | |
| str r1, [r0] | |
| /* | |
| * MEMCFG1 | |
| */ | |
| ldr r0, MEMCFG1 | |
| ldr r1, memcfg1_val | |
| str r1, [r0] | |
| /* | |
| * MEMCFG2 | |
| */ | |
| 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] | |
| /* | |
| * SDRFPR,SDCONF | |
| */ | |
| ldr r0, SDCONF | |
| ldr r1, sdconf_val | |
| str r1, [r0] | |
| ldr r0, SDRFPR | |
| ldr r1, sdrfpr_val | |
| str r1, [r0] | |
| /* everything is fine now */ | |
| mov pc, lr |